VOL. 14, NO. 4/5 A PUBLICATION OF THE GEOLOGICAL SOCIETY OF AMERICA APRIL/MAY 2004
Are plutons assembled over millions of years by amalgamation from small magma chambers? A.F. Glazner, J.M. Bartley, D.S. Coleman, W. Gray, and R.Z. Taylor, p. 4
Denver 2004 Call for Papers, p. 13
GSA Foundation Donors 2003, special insert
VOLUME 14, NUMBER 4/5 APRIL/MAY 2004
Cover: The Tuolumne Intrusive Suite in Yosemite National Park, California, comprises several nested plutons that become progressively younger and more felsic toward the GSA TODAY publishes news and information for more than 18,000 GSA members and subscribing libraries. GSA Today interior of the body. The classic interpretation of this sequence is that it was produced by lead science articles should present the results of exciting new several pulses of magma spaced closely enough in time that younger pulses intruded still- research or summarize and synthesize important problems or mushy older ones. New precise U-Pb zircon geochronology demonstrates that the intrusive issues, and they must be understandable to all in the earth suite took as long as 10 m.y. to develop, and that a single mapped pluton, the Half Dome science community. Submit manuscripts to science editors Granodiorite, accumulated over as long as 4 m.y. This implies that individual broadly ho- Keith A. Howard, [email protected], or Gerald M. Ross, [email protected]. mogeneous plutons must be cryptically composite, because even the largest plutons would cool below the solidus in less than 1 m.y. This view is across Tenaya Lake and the center GSA TODAY (ISSN 1052-5173 USPS 0456-530) is published 11 of the Tuolumne Intrusive Suite to Mt. Conness; all rocks in the photo belong to the suite. times per year, monthly, with a combined April/May issue, by The Geological Society of America, Inc., with offices at 3300 Penrose Photo by Allen Glazner. See “Are plutons assembled over millions of years by amalgamation Place, Boulder, Colorado. Mailing address: P.O. Box 9140, from small magma chambers?” by Glazner et al., p. 4–11. Boulder, CO 80301-9140, U.S.A. Periodicals postage paid at Boulder, Colorado, and at additional mailing offices. Postmaster: Send address changes to GSA Today, GSA Sales and Service, P.O. Box 9140, Boulder, CO 80301-9140. SCIENCE ARTICLE Copyright © 2004, The Geological Society of America, Inc. (GSA). 4 Are plutons assembled over millions of years by All rights reserved. Copyright not claimed on content prepared amalgamation from small magma chambers? wholly by U.S. government employees within scope of their employment. Individual scientists are hereby granted permission, ALLEN F. GLAZNER, JOHN M. BARTLEY, DREW S. COLEMAN, WALT GRAY, AND without fees or further requests to GSA, to use a single figure, a RYAN Z. TAYLOR single table, and/or a brief paragraph of text in other subsequent works and to make unlimited photocopies of items in this journal for noncommercial use in classrooms to further education and science. For any other use, contact Copyright Permissions, GSA, P.O. Box 9140, Boulder, CO 80301-9140, USA, Fax 303- Denver 2004 GSA Annual Meeting & Exposition 357-1073, [email protected]; reference GSA Today, ISSN 1052-5173. 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50% Total Recovered Fiber 62 GeoMart Geoscience Directory 10% Postconsumer 1996; Petford et al., 2000). If plutons are emplaced by bulk magmatic flow, then during emplacement, the magma must Are plutons assembled contain a melt fraction of at least 30–50 vol% (Vigneresse et al., 1996). At lower melt fractions, crystals in the melt are welded to their neighbors; thus, a low melt-fraction material over millions of years by probably is better regarded not as magma but as a solid with melt-filled pore spaces because bulk flow of such a material requires pervasive solid-state deformation. amalgamation from small The concept of plutons as large ascending molten blobs (Fig. 1) is widespread in geologic thought and commonly magma chambers? guides interpretation of field relations (e.g., Buddington, 1959; Miller et al., 1988; Clarke, 1992; Bateman, 1992; Miller and Paterson, 1999). A contrasting view is that diapiric as- Allen F. Glazner, Department of Geological Sciences, cent of magma is too slow and energetically inefficient to be CB#3315, University of North Carolina, Chapel Hill, North geologically important, and large magma bodies only form Carolina 27599, USA, [email protected] at the emplacement level where they are fed by dikes (e.g., John M. Bartley, Department of Geology and Geophysics, Clemens and Mawer, 1992; Petford et al., 2000). Several lines University of Utah, Salt Lake City, Utah 84112, USA of evidence indicate that, regardless of the ascent mechanism, Drew S. Coleman, Walt Gray*, and Ryan Z. Taylor*, at least some plutons were emplaced incrementally over time Department of Geological Sciences, CB#3315, University of spans an order of magnitude longer than the thermal lifetime North Carolina, Chapel Hill, North Carolina 27599, USA of a large magmatic mass (Coleman et al., 2004). No more than a small fraction of such a pluton can have contained melt at a given time, and thus apparently continuous bodies of plutonic rock appear to have grown in situ by amalgamation from many small, probably dike-fed, increments. ABSTRACT Magma volumes of 1000 km3 or more clearly must exist at Field and geochronologic evidence indicate that large and least ephemerally in the crust because ignimbrite eruptions of broadly homogeneous plutons can accumulate incrementally this size are well known from the geologic record (Lipman, over millions of years. This contradicts the common assump- 1984). However, it need not follow that large plutons were tion that plutons form from large, mobile bodies of magma. Incremental assembly is consistent with seismic results from active volcanic areas which rarely locate masses that contain more than 10% melt. At such a low melt fraction, a material is incapable of bulk flow as a liquid and perhaps should not even be termed magma. Volumes with higher melt fractions may be present in these areas if they are small, and this is consistent with geologic evidence for plutons growing in small increments. The large melt volumes required for erup- tion of large ignimbrites are rare and ephemeral, and links between these and emplacement of most plutons are open to doubt. We suggest that plutons may commonly form incre- mentally without ever existing as a large magma body. If so, then many widely accepted magma ascent and emplacement processes (e.g., diapirism and stoping) may be uncommon in nature, and many aspects of the petrochemical evolution of magmatic systems (e.g., in situ crystal fractionation and magma mixing) need to be reconsidered. Figure 1. Sketch of the “big tank” magma chamber and a synopsis of the processes that are hypothesized to occur in and around rising INTRODUCTION magma bodies. Processes such as stoping, downward flow of wall rock, and ballooning (not explicitly represented) are invoked as Plutons are fundamental building blocks of the continen- material transfer and emplacement mechanisms. Processes such as tal crust. Thought about plutons has been dominated by the sidewall crystallization, fractional crystallization, and magma mixing tacit assumptions that plutons are largely molten during em- are invoked to account for geochemical variation of plutons and placement and that emplacement is geologically rapid (e.g., associated volcanic rocks. These processes all require large, highly Buddington, 1959; Pitcher and Berger, 1972; Paterson et al., molten magma chambers capable of flow as liquids.
*Present addresses: Gray—Department of Engineering Dynamics, Southwest Research Institute, P.O. Drawer 28510, San Antonio, TX 78249; Taylor— U.S. Forest Service, Paonia Ranger District, P.O. Box 1030, Paonia, CO 81428
GSA Today; v. 14; no. 4/5, doi: 10.1130/1052-5173(2004)014<0004:APAOMO>2.0.CO;2
4 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 5 once large tanks of unerupted magma. zontally and then tilted at the margin of tion of a central, possibly small, steady- Large ignimbrite eruptions, although a sagging floor. state magma chamber (Hanson and geographically widespread, happen Other plutons preserve evidence Glazner, 1995). rarely compared to the much smaller for emplacement as a series of steep The growth of sheeted intrusions is eruptions that construct volcanoes. If dikes (e.g., Pitcher, 1970; Hutton, 1992; analogous to that of crack-seal veins construction of plutons resembles that McNulty et al., 1996). For example, the (Ramsay, 1980). A crack-seal vein con- of volcanoes, plutons may represent McDoogle pluton of the central Sierra tains a superficially uniform fill that amalgamations of many small magmatic Nevada displays compelling evidence accumulated incrementally as the crack additions. If so, then we must reevalu- for emplacement by dike amalgama- opened in a series of discrete events. ate pluton emplacement mechanisms tion (Mahan et al., 2003). The pluton is Annealing of the vein fill can obscure and, indeed, reevaluate the concept of a compositionally layered parallel to its evidence of individual fracturing events, “pluton.” contacts and contains numerous thin and this also may apply to composite This perspective mirrors the develop- concordant panels of wall rock that plutons. McDoogle granodiorite has the ment of thought about mid-ocean ridge preserve consistent fabric orientations same coarse grain size from the center magmatism. A spreading center once and tectonostratigraphic order. Wall- of the pluton to the thinnest dike, and was thought to contain a large perma- rock bodies inside the pluton are inter- shows no outcrop-scale evidence of nent magma chamber that underwent preted to have remained in place as the chilling at any contact. Locally, truncated in situ crystal fractionation and recharge pluton was intruded incrementally as a mafic enclaves reveal steep internal dike (Cann, 1974). However, seismic studies plexus of dikes (Mahan et al., 2003; cf. contacts but, away from truncated en- failed to locate such magma chambers Pitcher, 1970). claves, the dike contacts become invis- (e.g., Detrick et al., 1990), and model- The Tuolumne Intrusive Suite of ible (Mahan et al., 2003). These obser- ing suggests that it is thermally difficult Yosemite National Park has long been vations suggest that rock textures were to maintain even a small permanent thought to have crystallized from sev- homogenized by post-emplacement magma chamber at any but the most eral large batches of magma that were annealing that obscured internal con- rapidly spreading mid-ocean ridge (e.g., emplaced in rapid succession (Bateman tacts. The textural homogeneity of large Lister, 1983). Accretion of the oceanic and Chappell, 1979). However, at plutons like the Half Dome Granodiorite crust now is envisioned in terms of many places, the outer margin of the could also reflect post-emplacement an- small ephemeral magma bodies that Tuolumne is clearly composed of grano- nealing of amalgamated dikes or sheets, differentiate by complex processes at diorite dikes that invaded wall rocks and such a pluton thus might contain many sites (Sinton and Detrick, 1992). (Fig. 2). At May Lake the outermost unit any number of cryptic contacts. As yet it In this paper, we summarize field, of the Tuolumne in that area (tonalite of is unclear how to recognize and to map geochronologic, and geophysical Glen Aulin) intrudes a screen of meta- such cryptic contacts to determine their evidence that many plutons were em- morphic wall rocks and is choked with prevalence and abundance. placed incrementally over significant wall-rock xenoliths (Fig. 3A), ranging time spans and argue that many of our from 250 × 20 m down to decimeter Geochronologic Evidence fundamental assumptions regarding plu- scale, all of which contain foliation and Thermal models clearly show that tons and their relationships to host rocks lineation parallel to that in the main crustal magma bodies should solidify must be reexamined. screen (Fig. 3B). The tonalite exhibits rapidly, with small plutons cooling be- contact-parallel sheeting defined by low the solidus in thousands of years EVIDENCE FOR INCREMENTAL variations in mineral proportions and and even large plutons in hundreds of EMPLACEMENT OF PLUTONS grades over 5–25 m into the next in- thousands of years (e.g., Jaeger, 1957; ner and younger unit, the Half Dome Harrison and Clarke, 1979; Stimac et Field Evidence al., 2001). Figure 4 illustrates a simple A growing body of data suggests that Granodiorite. We interpret the xenoliths two-dimensional thermal model of many plutons were assembled as a se- as in-place bodies of wall rock isolated emplacement of a large rectangular ries of sheet-like intrusions that may be by dikes that, where their contacts are magma body, comparable in width to gently or steeply inclined. Wiebe and not marked by xenoliths, are recorded the exposed Tuolumne Intrusive Suite. Collins (1998) described the progressive by the compositional sheets. Temperatures were calculated using growth of large plutons by vertical stack- The Half Dome Granodiorite near the HEAT program of Wohletz (2003). ing of intrusive sheets beneath a long- the contact also contains sheets of vary- The magma body, silicic with an initial lived silicic magma cap and argued that ing composition and tabular swarms of temperature of 900 °C, is 5 km thick and a molten body of the size of the final mafic enclaves, but grades inward to 20 km wide, and its top is set at a depth pluton need never have existed. Similar a more homogeneous rock. Here the of 15 km in a crust with a geothermal large sheeted intrusions are now recog- occurrence of dikes or sheets is less gradient of 20 °C/km. The program nized worldwide and in many tectonic certain. However, a pattern of dikes calculates conductive cooling with a settings (e.g., Wiebe, 1993; Coleman et and sheets at the margins passing into finite-difference solution to the heat al., 1995; Brown and McClelland, 2000). a more homogenous interior is consis- flow equation, with latent heat of fusion Wiebe and Collins (1998) suggest that tent with thermal models of incremental released throughout the crystallization steeply dipping sheets at the margins of pluton growth that predict a transient interval. some plutons were emplaced subhori- sheeted-dike stage followed by forma-
4 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 5 Figure 2. Geologic mapping around Yosemite Valley shows that outer, older units of the Tuolumne Intrusive Suite invaded older plutons as a series of dikes. Here, on the north side of Yosemite Valley near Yosemite Village, dikes of the outermost Tuolumne (here mapped as Sentinel Granodiorite, Ks) intruded and split off panels of the older El Capitan Granite (Kec). Map by Calkins (1985; mapped from 1913–1916); similar relations are shown farther north by Kistler (1973) and south of Yosemite Valley by Peck (2002). The mapped zone of dike emplacement stretches ~15 km along strike (Huber et al., 1989) and continues beyond the mapped zone (see text).
Figure 4 tracks the temperature at four points within the the outer contact and younger ages near the inner. The Half body. All fall below 750 °C within 500,000 years, and the Dome Granodiorite is mapped as a single continuous pluton volume fraction of the pluton above 750 °C falls linearly to that locally grades into an inner porphyritic facies, but the zero in that time. If 750 °C is taken as an estimate of the tem- data demonstrate a lifetime far longer than single-intrusion perature at which the magma is 50% crystallized (and thus no thermal models allow. Although the thermal modeling and longer mobile), then the mobile fraction is gone by 500,000 geochronologic data permit the possibility that small volumes years. We note that this two-dimensional model cools signifi- of partial melt may have persisted throughout the Half Dome cantly more slowly than a fully three-dimensional model be- during amalgamation, they do not permit the possibility that cause there is no heat loss out the ends, and that convection it intruded as a single batch of magma. The Half Dome thus of fluids in the wall rocks will speed cooling greatly. must be cryptically composite and amalgamated from at least Geochronologic data contradict these results. In particular, several discrete intrusions, the forms of which (e.g., dikes, U-Pb zircon data from the Tuolumne Intrusive Suite (Coleman subhorizontal sheets, blobs) are yet unknown. Pitcher (1993, et al., 2004) demonstrate a regular time-space pattern of em- p. 186) recognized multipulse plutonic systems that are em- placement between 95 and 85 Ma, with the oldest intrusions placed over a significant time span, but stated that “the entire at the margins and the youngest at the center (Fig. 5). The magmatic life of a multipulse pluton may not exceed a million Half Dome Granodiorite was emplaced over a >3 m.y. period years.” Similarly, modeling by Petford et al. (2000) predicts between 92.8 ± 0.1 and 88.8 ± 0.8 Ma, with older ages near intrusion over 1000 to 10,000,000 years for a pluton the size of
6 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 7 Figure 3. (A) Geologic map of the area around May Lake, Yosemite National Park, showing large xenoliths of metasedimentary rocks caught up in the outermost unit of the Tuolumne Intrusive Suite. From Taylor (2004). (B) Equal-area plots of structural data from May Lake. Lineation in red and poles to foliation in blue, with best-fit axes as squares. Data from the xenoliths, which are entirely enclosed in the tonalite of Glen Aulin, are consistent with data from the main metamorphic screen, indicating that the xenoliths were not reoriented during detachment, as would be expected of stoped blocks. These data are instead consistent with isolation of the xenoliths by diking. For foliation data, best-fit axes on girdle represent point maximum on girdle and the axis perpendicular to it.
Figure 4. Evolution of temperatures in a two-dimensional magma body. Magma body, 5 km thick and 20 km wide, is emplaced at 15 km depth. Figure plots temperatures at four points in the body: 1 km below the top center, in the center, 1 km above the bottom center, and 1 km inside the side contact, vertically centered. The entire body is below 750 °C in ca. 500,000 years. The >3 m.y. lifetime of the Half Dome Granodiorite contradicts this single-pulse result.
6 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 7 highly molten (>50%) crustal magma (Iyer, 1984), and few clearly identifiable shadow zones are known in spite of care- ful surveys designed to find them (e.g., Sanders, 1993). Many areas are known worldwide in which partial melt is present, but decreases in P- and S-wave velocities are typically a few percent and rarely greater than 20% (Lees, 1992; Nelson et al., 1996; Schilling and Partzsch, 2001; Zandt et al., 2003). Silicic volcanic centers in the western United States are inferred to have only a few percent of dispersed melt beneath them (Iyer et al., 1990). In the Cascade Range, “anomalous structures at- tributable to active magma chambers are generally small and difficult to detect” (Iyer et al., 1990). Schilling and Partzsch (2001) used both electrical and seismic methods to estimate the amount of melt in the crust under the central Andes. They conclude that at least 20% melt is required to explain observations, but that the absence of an S-wave shadow zone requires that such melt is localized in dikes and veins rather than forming large bodies of highly molten magma. Therefore, wherever partially molten rocks have been seis- mically imaged, the melt fraction, at least over distances larger than the minimum resolution of the seismic data (typically 100–1000 m), is small enough that bulk flow would require deformation of a solid crystalline framework. This appears Figure 5. Summary of geochronologic data for the Tuolumne to contradict the widespread assumption that active volcanic Intrusive Suite, modified from Coleman et al. (2004). Ages are from areas are underlain by large magma bodies in the process of concordant U-Pb zircon data. Bar height is equal to ±2σ error and cooling to form plutons. However, bodies with higher melt bar color is keyed to rock unit color on inset map. Ages for units fractions may yet be present if they are too small to resolve are arranged in sequence from outermost to innermost (Kse— seismically. This possibility is compatible with the geologic Sentinel Granodiorite; Kga-Kkc—tonalite of Glen Aulin–Kuna Crest evidence summarized above for plutons that formed in small Granodiorite; Khd—Half Dome Granodiorite; Kcp—Cathedral Peak Granodiorite; Kjg—Johnson Granite porphyry). Horizontal scale is increments. not linear distance, but places samples according to the fractional We conclude that, as at mid-ocean ridges, seismic evidence distance from outer to inner contact of individual units (see Coleman for large magma bodies with a high melt fraction is rare or et al. [2004] for a complete discussion). absent. Massive caldera-forming eruptions may reflect either large magma bodies that are ephemeral and develop only the Tuolumne, but the authors prefer timescales of less than rarely, or eruption of silicate melt that is relatively dispersed 100,000 years for large plutons. Our data indicate a magmatic rather than concentrated in a single magmatic mass. lifetime closer to 10 m.y. for the Tuolumne Intrusive Suite. Plutons like the Half Dome Granodiorite may be common. WHY IS IT IMPORTANT TO RECOGNIZE When large plutons are dated multiple times by the U/Pb INCREMENTALLY EMPLACED PLUTONS? zircon method, it is fairly common for the resulting dates to If long-lived incrementally assembled plutons are com- disagree by more than analytical error (e.g., see Brown et al., mon, then many widespread assumptions about the behavior 2000, for several examples). The prevailing view that plutons of magma in the crust must be modified. These include the cool in less than a million years requires such conflicting ages following. to reflect problems in isotopic systematics. However, it may be that many such age differences are real and that the problem Pluton Ascent and Emplacement Mechanisms lies instead with assumptions about plutonic processes. Diapirism, ballooning, and stoping are widely accepted pro- cesses that have been inferred for many plutons (e.g., Pitcher, Seismic Evidence 1993; Paterson et al., 1996). These processes require that plu- Active crustal magma bodies should be locatable using seis- tons represent frozen magma chambers with at least 50 vol% mic methods because magmatic liquids slow and attenuate liquid throughout a volume comparable to the size the pluton. seismic waves. Hammond and Humphreys (2000) showed via This is not viable for any pluton that accumulated in small in- finite-element calculations that just 2 vol% melt in the upper crements such that, at any time during its emplacement, most mantle should reduce Vp by ~7% and Vs by ~16%. Because of the pluton was largely solid. S-waves do not propagate through liquids, a body sufficiently molten to undergo bulk magmatic flow should not transmit S- Rates of Magmatic Processes waves and thus should produce a shadow zone. Rates of pluton growth must be compatible with space- Comprehensive surveys of major active volcanic areas making rates in the wall rock (Paterson and Tobisch, 1992). have failed to turn up evidence for significant quantities of A diapir must rise slowly and displace wall rocks by ductile
8 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 9 creep (e.g., Miller et al., 1988). In con- 102–104 m. Such zonation has been large magma body can develop; where trast, the rate of magma ascent along interpreted to result largely from crys- power input is low, cooling prevents de- dikes is rapid enough to allow con- tal fractionation (e.g., Bateman and velopment of a large magma body and struction of large plutons in as little as Chappell, 1979; Tindle and Pearce, a pluton may form incrementally (Fig. 103–104 yr (Clemens and Mawer, 1992; 1981; Sisson and Moore, 1994) and/or 6). It may be that, when power input is Petford et al., 2000). Such volumetric magma mixing (Kistler et al., 1986; sufficiently high to form a large magma emplacement rates imply extreme wall- Frost and Mahood, 1987). However, body in the upper to middle crust, the rock displacement rates of up to 0.1–1 for plutons assembled over millions of roof fails and a caldera-forming eruption m/yr, depending on the pluton shape years with only small parts molten at results, evacuating the magma chamber and dilation pattern. However, a pluton one time, in situ crystal fractionation to leave behind only minor plutonic may be incrementally assembled by and/or magma mixing cannot account residues. Neogene magmatism in the dike injection at virtually any long-term for the zonation. In such cases, textural Basin and Range (Best et al., 1993), rate, depending on the time between and chemical homogeneity of a pluton Sierra Madre Occidental of Mexico injection events. More detailed high-pre- probably reflects processes operat- (McDowell and Clabaugh, 1979), and cision geochronologic studies of petro- ing deeper than the observed crustal Bolivian Andes (de Silva, 1989) reflects logically and tectonically diverse plutons level. Indeed, a remarkable aspect of large power input, development of doz- are needed to discover the actual range the Sierra Nevada is that the plutonic ens of large, shallow magma chambers, of long-term pluton emplacement rates. zoning of the Tuolumne—an outer, and common caldera collapse, but it medium-grained, equigranular mafic is unknown if significant plutons were Timing and Rates of Tectonic granodiorite, a medial granodiorite with emplaced at the same time. However, Processes conspicuous euhedral hornblende, caldera resurgence may be the surface If growth of an individual pluton can biotite, and titanite phenocrysts, and an manifestation of continued incremental last millions of years, determining the inner granodiorite with large K-feldspar input of magma to form newly amal- ages of structures and fabrics by isotopic megacrysts—is repeated several times gamating plutons. dating of cross-cutting plutons becomes along the length of the range (Tikoff less straightforward. A single pluton and Teyssier, 1992) among plutons of CONCLUSIONS may both cut and be cut by structures if similar age. This repetition cannot reflect Field and geochronologic evidence the pluton’s magmatic lifetime overlaps derivation of the plutons from a com- indicate that at least some large, super- deformation. These relationships could mon magma chamber and must instead ficially homogeneous plutons formed be exploited using careful isotopic dat- reflect the recurrence of petrogenetic by amalgamation of numerous small ing to determine durations of events and processes in the deeper crust. intrusions, and that the field or petro- to understand the interplay between in- logic record of their composite origins trusive and wall-rock processes. Size and Nature of Magma Chambers may be subtle. Coupled with the lack of There is a fundamental discrepancy geophysical evidence for modern large Interpretation of Magmatic Fabrics between geophysical images of “large bodies of magma, this suggests that Interpretation of magmatic rock fab- magma chambers” with volumes on the plutons may commonly form in many rics is controversial, and a review is be- order of 103 km3 but generally contain- small increments in a manner analo- yond the scope of this paper. However, ing less than 10% melt (Iyer et al., 1990) gous to growth of crack-seal veins. The several plutons mentioned here (e.g., and the common petrologic view of a resulting internal contacts apparently Half Dome, McDoogle) contain a mag- magma chamber with comparable di- can be cryptic, and thus we know little matic fabric that appears continuous in mensions but a melt fraction in excess as yet about typical geometric forms the field in spite of field and geochro- of 50%. Incremental emplacement of of individual increments or how the nologic evidence that rocks containing plutons by amalgamation of small intru- increments combine to form a pluton. the fabric crystallized at significantly sions is compatible with geophysical However, present examples include plu- different times. Such a fabric clearly is observations that indicate that magma tons composed mainly of subhorizontal time-trangressive and implies notably chambers in the petrologic sense gener- (e.g., Wiebe and Collins, 1998) and uniform strain associated with emplace- ally are small and transient. mainly of subvertical (e.g., Hutton, 1992; ment increments added at significantly Mahan et al., 2003) intrusive sheets. different times. In examples where a Correspondence between Plutons A pluton composed of subhorizontal single magmatic fabric cuts contacts and Caldera-Forming Eruptions sheets will be laccolithic in overall form between mapped intrusive phases (e.g., Caldera-forming eruptions with vol- and likely have a gently dipping roof 3 Morgan et al., 2000), emplacing the plu- umes on the order of 1000 km offer defined by the structurally highest intru- tons in small increments does not help undeniable evidence that large magma sive sheet. A pluton composed of dikes resolve the problem but neither does it bodies exist at least ephemerally in the should have an irregular roof at which appear to increase the difficulties. crust. Growth of a magma body requires the pluton grades into wall rock injected the rate of thermal input by magma to by many dikes, as is observed at one Magmatic Differentiation Processes exceed the rate of thermal loss by cool- end of the McDoogle pluton. Large plutons commonly are com- ing and eruption. In an area where the The data cited above suggest that our positionally zoned on length scales of power input (Hildreth, 1981) is high, a understanding of the emplacement of
8 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 9 Figure 6. Sequence of sketches illustrating the differences between pluton building (top panels) and ignimbrite building (bottom panels). During pluton assembly, the flux of thermal energy (power; shown here schematically as new basalt intrusion—red dikes cooling to darker reds) is modest, yielding plutons assembled incrementally over millions of years and persistent volcanic activity. Only a small portion of the system need be liquid at any time (areas represented by darkest pinks). This model accounts for geochronologic, thermochronologic, and seismic observations discussed in text. Pluton growth is shown here via dike assembly at depth (perhaps preserved in plutons such as the McDoogle) feeding assembly of sheeted intrusions at shallower crustal levels (perhaps preserved in plutons such as the central Tuolumne). Initiation of an ignimbrite eruption is interpreted to result from rapid heat flux (high power) resulting in a large volume of high- percentage partial melt capable of eruption. We envision such magma chambers to be ephemeral features of the shallow lithosphere, erupting soon after formation. Note that for both sequences, the total energy input and silicic magma generated are intended to be approximately the same.
plutons and their chemical and struc- plutonic processes, although not all Valley, Yosemite National Park, California: U.S. Geological Survey Map I-1639, scale 1:24,000. tural evolution is incomplete, and the of them will agree with the ideas and Cann, J.R., 1974, A model for oceanic crustal structure ideas presented here raise many ques- conclusions that we present here. developed: Geophysical Journal of the Royal Astronomical tions and present testable hypotheses. Thorough, critical, and creative reviews Society, v. 39, p. 169–187. Fruitful areas for future research might by Bernard Bonin, John Eichelberger, Clarke, D.B., 1992, Granitoid rocks: London, Chapman and Hall, 283 p. include: Rick Law, Calvin Miller, Robert Clemens, J.D., and Mawer, C.K., 1992, Granitic magma • understanding the space-time pattern Trumbull, and editor Keith Howard transport by fracture propagation: Tectonophysics, v. 204, of incrementally emplaced plutons; greatly improved both the science and p. 339–360. • reconsidering magmatic fabrics presentation and gave us many new Coleman, D.S., Glazner, A.F., Miller, J.S., Bradford, K.J., Frost, T.P., Joye, J.L., and Bachl, C.A., 1995, Exposure of a within the incremental growth frame- things to think about. Late Cretaceous layered mafic-felsic magma system in the central Sierra Nevada batholith, California: Contributions to work; Mineralogy and Petrology, v. 120, p. 129–136. REFERENCES CITED • establishing clearer ties between the Coleman, D.S., Gray, W., and Glazner, A.F., 2004, volcanic and plutonic records; Bateman, P.C., 1992, Plutonism in the central part of the Rethinking the emplacement and evolution of zoned plu- Sierra Nevada Batholith, California: U.S. Geological Survey tons: Geochronologic evidence for incremental assembly • understanding the chemical and pet- Professional Paper, v. 1483, 186 p. of the Tuolumne Intrusive Suite, California: Geology, v. 32, p. 433–436. rologic evolution of plutons given Bateman, P.C., and Chappell, B.W., 1979, Crystallization, that fractionation within, and mixing fractionation, and solidification of the Tuolumne intrusive de Silva, S.L., 1989, Altiplano-Puna volcanic complex of the series, Yosemite National Park, California: Geological Central Andes: Geology, v. 17, p. 1102–1106. of, exposed units may be minimal; Society of America Bulletin, v. 90, p. 465–482. Detrick, R.S., Mutter, J.C., Buhl, P., and Kim, I.I., 1990, No • comparison of the emplacement rates Best, M.G., Scott, R.B., Rowley, P.D., Swadley, W.C., evidence from multichannel reflection data for a crustal of mafic versus felsic plutons; and Anderson, R.E., Gromme, C.S., Harding, A.E., Deino, A.L., magma chamber in the MARK area on the Mid-Atlantic Christiansen, E.H., Tingey, D.G., and Sullivan, K.R., 1993, Ridge: Nature, v. 347, p. 61–64. • comparison of incremental emplace- Oligocene-Miocene caldera complexes, ash-flow sheets, Frost, T.P., and Mahood, G.A., 1987, Field, chemical, and and tectonism in the central and southeastern Great Basin, ment processes in varied tectonic physical constraints on mafic-felsic magma interaction in Lahren, M.M., Trexler, J.H., Jr., and Spinosa, C., eds., in the Lamarck Granodiorite, Sierra Nevada, California: settings. Crustal evolution of the Great Basin and the Sierra Nevada: Geological Society of America Bulletin, v. 99, p. 272–291. Reno, University of Nevada, p. 285–311. Hammond, W.C., and Humphreys, E.D., 2000, Upper Brown, E.H., and McClelland, W.C., 2000, Pluton em- ACKNOWLEDGMENTS mantle seismic wave velocity; effects of realistic partial placement by sheeting and vertical ballooning in part of melt geometries: Journal of Geophysical Research, v. 105, Research into plutonic processes in the southeast Coast Plutonic Complex, British Columbia: p. 10975–10986. the Sierra Nevada was supported by Geological Society of America Bulletin, v. 112, p. 708–719. Hanson, R.B., and Glazner, A.F., 1995, Thermal require- Brown, E.H., Talbot, J.L., McClelland, W.C., Feltman, J.A, National Science Foundation grants ments for extensional emplacement of granitoids: Geology, Lapen, T.J., Bennett, J.D., Hettinga, M.A., Troost, M.L., v. 23, p. 213–216. EAR-9526803 and EAR-9814789 to AFG, Alvarez, K.M., and Calvert, A.T., 2000, Interplay of pluto- EAR-9814787 to JMB, and EAR-9814788 nism and regional deformation in an obliquely convergent Harrison, T.M., and Clarke, G.K.C., 1979, A model of the arc, southern Coast Belt, British Columbia: Tectonics, v. 19, thermal effects of igneous intrusion and uplift as applied to to DSC. We thank Kevin Mahan, Bob p. 493–511. Quottoon Pluton, British Columbia: Canadian Journal of Earth Sciences, v. 16, p. 411–420. Wiebe, Bob Miller, Jonathan Miller, Ron Buddington, A.F., 1959, Granite emplacement with special Kistler, John Templeton, and many oth- reference to North America: Geological Society of America Hildreth, W., 1981, Gradients in silicic magma cham- Bulletin, v. 70, p. 671–747. bers: implications for lithospheric magmatism: Journal of ers for stimulating discussions about Geophysical Research, v. 86, p. 10153–10192. Calkins, F.C., 1985, Bedrock geologic map of Yosemite
10 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 11 Huber, N.K., Bateman, P.C., and Wahrhaftig, C., 1989, Brown, M., et al., eds., The Third Hutton Symposium on the Geologic map of Yosemite National Park and vicinity, origin of granites and related rocks: Geological Society of California: U.S. Geological Survey Map I-1874, scale 1: America Special Paper 315, p. 115–123. 125,000. Peck, D.L., 2002, Geologic map of the Yosemite Hutton, D.H.W., 1992, Granite sheeted complexes: Quadrangle, central Sierra Nevada, California: U.S. evidence for the diking ascent mechanism: Transactions Geological Survey Map I-2751, scale 1:62,500. of the Royal Society of Edinburgh: Earth Sciences, v. 83, Petford, N., Cruden, A.R., McCaffrey, K.J.W., and Vigneresse, p. 377–382. J.-L., 2000, Granite magma formation, transport and em- Iyer, H.M., 1984, Geophysical evidence for the loca- placement in the Earth’s crust: Nature, v. 408, p. 669–673. tions, shapes and sizes, and internal structures of magma Pitcher, W.S., 1970, Ghost stratigraphy in intrusive granites: chambers beneath regions of Quaternary volcanism: a review, in Newall, G., and Rast, N., eds., Mechanism of Philosophical Transactions of the Royal Society of London, Igneous Intrusion: Liverpool, Gallery Press, p. 123–140. Series A: Mathematical and Physical Sciences, v. 310, p. 473–510. Pitcher, W.S., 1993, The nature and origin of granite: London, Blackie Academic & Professional, 321 p. Iyer, H.M., Evans, J.R., Dawson, P.B., Stauber, D.A., Achauer, U., 1990, Differences in magma storage in different volca- Pitcher, W.S., and Berger, A.R., 1972, The geology of nic environments as revealed by seismic tomography; silicic Donegal: a study of granite emplacement and unroofing, volcanic centers and subduction-related volcanoes, in Ryan, Regional geology series: New York, Wiley-Interscience, M.P., Magma transport and storage: United Kingdom, John 435 p. Wiley & Sons, p. 293–316. Ramsay, J.G., 1980, The crack-seal mechanism of rock de- Jaeger, J.C., 1957, The temperature in the neighborhood of a formation: Nature (London), v. 284, p. 135–139. cooling intrusive sheet: American Journal of Science, v. 255, Sanders, C.O., 1993, Reanalysis of S-to-P amplitude p. 306–318. ratios for gross attenuation structure, Long Valley cal- Kistler, R.C., 1973, Geologic map of the Hetch Hetchy dera, California: Journal of Geophysical Research, v. 98, Reservoir Quadrangle, Yosemite National Park, California: p. 22,069–22,079. U.S. Geological Survey Map GQ-1112, scale 1:62,500. Schilling, F.R., and Partzsch, G.M., 2001, Quantifying partial Kistler, R.W., Chappell, B.W., Peck, D.L., and Bateman, melt fraction in the crust beneath the Central Andes and the P.C., 1986, Isotopic variation in the Tuolumne Intrusive Tibetan Plateau: Physics and Chemistry of the Earth, Part A: Suite, central Sierra Nevada, California: Contributions to Solid Earth and Geodesy, v. 26, p. 239–246. Mineralogy and Petrology, v. 94, p. 205–220. Sinton, J.M., and Detrick, R.S., 1992, Mid-ocean ridge Lees, J.M., 1992, The magma system of Mount St. Helens: magma chambers: Journal of Geophysical Research, v. 97, non-linear high-resolution P-wave tomography: Journal of p. 197–216. Volcanology and Geothermal Research, v. 53, p. 103–116. Sisson, T.W., and Moore, J.G., 1994, Geologic map of the Lipman, P.W., 1984, The roots of ash flow calderas in west- Giant Forest Quadrangle, Tulare County, California: U.S. ern North America; windows into the tops of granitic batho- Geological Survey, GQ-1751, 1:62,500. liths: Journal of Geophysical Research, v. 89, p. 8801–8841. Stimac, J.A., Goff, F., and Wohletz, K., 2001, Thermal mod- Lister, C.R.B., 1983, On the intermittency and crystal- eling of the Clear Lake magmatic-hydrothermal system, lization mechanisms of sub-seafloor magma chambers: California, USA: Geothermics, v. 30, p. 349–390. Geophysical Journal of the Royal Astronomical Society, Taylor, R.Z., 2004, Structure and stratigraphy of the May v. 73, p. 351–365. Lake interpluton screen, Yosemite National Park, California Mahan, K.H, Bartley, J.M., Coleman, D.S., Glazner, A.F., [M.S. thesis]: University of North Carolina at Chapel Hill, and Carl, B.S., 2003, Sheeted intrusion of the synkinematic 60 p. McDoogle pluton, Sierra Nevada, California: Geological Tikoff, B., and Teyssier, C., 1992, Crustal-scale, en echelon Society of America Bulletin, v. 115, p. 1570–1582. “P-shear” tensional bridges—A possible solution to the McDowell, F.W., and Clabaugh, S.E., 1979, Ignimbrites batholithic room problem: Geology, v. 20, p. 927–930. of the Sierra Madre Occidental and their relation to the Tindle, A.G., and Pearce, A., 1981, Petrogenetic model- tectonic history of western Mexico: Geological Society of ling of in situ fractional crystallization in the zoned Loch America Special Paper 180, p. 113–124. 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Sage Hen Flat plutons; examples of rising, sinking, and Wohletz, K., 2003, KWare HEAT, version 4.06.0234 cookie-cutter plutons in the central White-Inyo Range, east- (06 June 2003) [cited 17 January 2004] [Internet], http: ern California, in Lageson, D.R., Peters, S.G., and Lahren, //www.ees1.lanl.gov/Wohletz/Heat.htm. M.M., eds., Great Basin and Sierra Nevada: Boulder, Colorado, Geological Society of America Field Guide 2, Zandt, G., Leidig, M., Chmielowski, J., Baumont, D., and p. 189–204. Yuan, X., 2003, Seismic detection and characterization of the Altiplano-Puna magma body, central Andes: Pure and Nelson, K.D., Zhao, W., Brown, J., Che, J., Liu, X., Applied Geophysics, v. 160, p. 789–807. Klemperer, S.L., Makovsky, Y., Meissner, R., Mechie, J., Kind, R., Wenzel, F., Ni, J., Nabelek, J., Chen L., Tan H., Wei, W., Jones, A.G., Booker, J., Unsworth, M., Kidd, W.S.F., Hauck, Manuscript submitted November 10, M., Alsdorf, D., Ross, A., Cogan, M., Wu, C., Sandvol, E.A., 2003; accepted January 23, 2004. ❖ and Edwards, M., 1996, Partially molten middle crust be- neath southern Tibet; synthesis of Project INDEPTH results: Science, v. 274, p. 1684–1688. Paterson, S.R., and Tobisch, O.T., 1992, Rates of processes in magmatic arcs—implications for the timing and nature of pluton emplacement and wall rock deformation: Journal of Structural Geology, v. 14, p. 291–300. Paterson, S.R., Fowler, T.K., Jr., and Miller, R.B., 1996, Pluton emplacement in arcs; a crustal-scale exchange process, in
10 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 11 New at the GSA Bookstore
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12 APRIL/MAY 2004, GSA TODAY CALL FOR PAPERS GEOSCIENCE in a Changing World GSA Annual Meeting & Exposition November 7–10, 2004, Colorado Convention Center, Denver, Colorado
How will our expanding population affect our interactions with the Earth in coming Annual Meeting Sponsor generations? Where will our water come from? Our energy resources? What can we learn about our future on this planet from past environments? How should we be educating our children and our communities about science? How will new technologies push us to ask new scientific questions, and how will our scientific questions drive the development of new technologies? Title Sponsor of the 2004 GSA Annual Meeting. Look through the list of topical sessions and Pardee Symposia for the 2004 Annual Meeting in Denver and you will see these questions intimately interlinked with the science in a wide range of disciplines. 2004 Annual Meeting Denver is the perfect setting for a meeting focusing on change. The city has reinvented itself Local Committee many times, from boomtown of the gold rush days to the cultural center that it is today. Its location at the boundary between the stable craton and the tectonically active west encourages exploration of the forces of change. And, with a geologic history ranging from the Precambrian Technical Program Chair to the present, there is truly something for everyone. Jane Selverstone We are counting on your participation to help make this an exciting meeting. Submit an University of New Mexico abstract—to one of the many Topical Sessions, or to an open discipline session—and then [email protected] encourage your colleagues and students to do the same. At the meeting, plan to wander into a session on a topic outside your own field of expertise, or attend a lunchtime “Hot Topics” Field Trip Co-Chairs session on controversial material. At a time when the geosciences are becoming increasingly multi- and interdisciplinary, the people you meet in other fields may become your next Eric Erslev collaborators. Consider participating in one of the many field trips, or expand your horizons Colorado State University at one of the workshops associated with the meeting. Visit what promises to be an outstanding [email protected] collection of exhibits to find the most up-to-date textbooks and equipment. And, at the end of Eric Nelson the day, count on an evening exploring Denver’s fine microbreweries and restaurants. Colorado School of Mines GEOSCIENCE in a Changing World 2004. Be there! [email protected] Jane Selverstone 2004 Technical Program Chair IMPORTANT DATES, EVENTS, & DEADLINES
Registration Opens: June Technical Program: Sun.–Wed., Nov. 7–11 Abstracts Deadline: July 13 Pardee Keynote Symposia: Sun.–Wed., Nov. 7–11, Early Bird Registration Deadline: July 13 8 a.m.–noon; 1:30–5:30 p.m. Standard Registration Deadline: September 30 Private Alumni Receptions: Mon., Nov. 8, 5:30 p.m.–1 a.m. Cancellation Deadline: October 7 Group Alumni Reception: Mon., Nov. 8, 7–9:30 p.m. Exhibit Hall Hours: Sun., Nov. 7, 5:30–7:30 p.m. Premeeting Field Trips: Tues.–Sat., Nov. 2–6 Mon. and Tues., Nov. 8–9, Short Courses & Workshops: Fri. and Sat., Nov. 5–6 9 a.m.–5:30 p.m. Presidential Address & Awards Ceremony: NEW DAY—Sat., Nov. 6, Wed., Nov. 10, 9 a.m.–2 p.m. 7–9 p.m. Hot Topics: Nov. 7–10, 12:15–1:15 p.m. Welcoming Party & Exhibits Opening: Sun., Nov. 7, 5:30–7:30 p.m. Postmeeting Field Trips: Nov. 10–13
12 APRIL/MAY 2004, GSA TODAY First Announcement • 2004 Denver Annual Meeting • November 7–10 Attention All GSA Associated Society and GSA Division Leaders: Did you ever wait until the last minute to plan an event only to find out no meeting space was available? You can avoid panic and frustration by planning now for your business meeting, alumni party, reception, banquet, or social event at the Denver GSA Annual Meeting. To reserve space for your event at one of the headquarter hotels or at the convention center, make your plans NOW and complete the Meeting Space Request form online. Step 1. Start planning NOW. Step 2. Go to www.geosociety.org. Step 3. Click on “Meetings and Excursions,” then “Geoscience in a Changing World, Denver 2004” Step 4. Go to the Meeting Space Request Form and complete it online. Thank you!
GSA Associated Societies PAPERSFOR CALL American Association of Stratigraphic Palynologists American Institute of Professional Geologists American Quaternary Association American Rock Mechanics Association Association for Women Geoscientists Association of American State Geologists Association of Earth Science Editors Association of Engineering Geologists Association of Geoscientists for International Development Council on Undergraduate Research, Geosciences Division Cushman Foundation Environmental & Engineering Geophysical Society Geochemical Society Geoscience Information Society History of the Earth Sciences Society International Association of Hydrogeologists Mineralogical Society of America National Association for Black Geologists and Geophysicists National Association of Geoscience Teachers National Earth Science Teachers Association National Ground Water Association Paleontological Research Institution Paleontological Society Sigma Gamma Epsilon Society for Sedimentary Geology Society of Economic Geologists Society of Vertebrate Paleontology GSA Allied Societies
American Association of Petroleum Geologists Asociación Geológica Argentina Geological Association of Canada Geological Society of Australia Geological Society of London Geological Society of South Africa Soil Science Society of America GSA Welcomes These New Associated Societies
American Quaternary Association American Rock Mechanics Association
14 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 15 First Announcement • 2004 Denver Annual Meeting • November 7–10
P4. Medical Geology PARDEE KEYNOTE SYMPOSIA GSA Engineering Geology Division Environmental Geoscience; Geoscience Education; Public Policy INVITED PAPERS Syed E. Hasan, University of Missouri, Kansas City, Mo. The Pardee Keynote Symposia are made possible by a Many health problems, including cancer, heart, and central grant from the Joseph T. Pardee Memorial Fund. nervous system diseases, etc., have links to geologic factors. These Pardee keynote sessions are special events of Experts from geosciences, public policy, and health sciences broad interest to the geoscience community. They will discuss new developments in the emerging field of represent hot issues on the leading edge in a scientific medical geology. discipline or area of public policy, address broad funda- mental issues, and are interdisciplinary. Selection was on P5. Adversity, Advantages, Opportunities: Phanerozoic a competitive basis. This year’s eight Pardee Symposia Stromatolites as “Survivor” vs. “Disaster” Taxa were reviewed and accepted by the Annual Program Paleontological Society Committee. (All speakers are invited.) Paleontology/Paleobotany; Geomicrobiology; Sediments, Carbonates Constance M. Soja, Colgate University, Hamilton, N.Y.; Robert P1. Early Paleoproterozoic (2.5–2.0 Ga) Events and Riding, University of Cardiff, Cardiff, United Kingdom Rates: Bridging Field Studies and Models This interdisciplinary forum will reexamine the role of Geochemical Society; Astrobiology Program; GSA Sedimentary stromatolites in Phanerozoic ecosystems, particularly the Geology Division; SEPM—Society for Sedimentary Geology importance of post-Cryptozoic microbial communities; the biotic and abiotic agents that contributed to their develop- Precambrian Geology; Paleoclimatology/Paleoceanography; PAPERSFOR CALL Tectonics ment, decline, and preservation; and their co-evolutionary history with metazoans. Andrey Bekker, Geophysical Lab, Carnegie Institution of Washington, Washington, D.C.; Mark E. Barley, The University P6. Pre-Mesozoic Impacts: Their Effect on Ocean of Western Australia, Western Australia, Australia; Robert H. Geochemistry, Magnetic Polarity, Climate Change, Rainbird, Geological Survey of Canada, Ottawa, Ontario and Organic Evolution Field-oriented and modeling studies dealing with the 2.5– GSA Planetary Geology Division; Paleontological Society 2.0 Ga Earth’s evolution are invited. Session will be focused on relationships between tectonics, change in atmospheric compo- Planetary Geology; Paleontology/Paleobotany; sition, and climatic changes as well as the rates of these changes. Paleoclimatology/Paleoceanography Charles A. Sandberg, U.S. Geological Survey, Denver, Colo.; P2. Geoinformatics and the Role of Cyberinfrastructure Jared R. Morrow, University of Northern Colorado, Greeley, in Geosciences Research Colo.; Christian Koeberl, University of Vienna, Vienna, Austria Geophysics/Tectonophysics/Seismology; Structural Geology; Pre-Mesozoic comet and meteorite impacts produced extreme Tectonics oceanic and climate changes, causing mass extinctions followed Randy Keller, University of Texas, El Paso, Texas; Lee Allison, by rapid radiation of surviving organisms. Thus, they were the Kansas Geological Survey, Lawrence, Kans. driving mechanism in the early evolution of life on Earth. This session consists of presentations on geoinformatics and P7. Seeing Mars with New Eyes: Active Missions, Science the use of advanced information technology in support of re- Results and Geoscience Education search in the geosciences. The talks will provide an overview of cyberinfrastructure that is emerging and describe projects GSA Planetary Geology Division; Geoscience Education that are developing as well as using this cyberinfrastructure. Division Planetary Geology; Geoscience Education P3. Geoscientific Aspects of Human and Ecosystem Eric B. Grosfils, Pomona College, Claremont, Calif.; Susan Vulnerability Sakimoto, NASA/GSFC, Greenbelt, Md. U.S. National Committee for Geosciences; GSA Critical Issues In 2004, multiple spacecraft are exploring Mars simultane- Caucus; GSA Geology and Public Policy Committee; GSA ously. This session will present some of the most recent and Geology and Society Division exciting science results and demonstrate how the available Public Policy; Environmental Geoscience; Geoscience data can be used to enhance geoscience education activities. Information/Communication Susan W. Kieffer, University of Illinois, Champaign-Urbana, Ill.; P8. Weathering, Slopes, Climate, and Late-Quaternary Grant Heiken, Los Alamos National Lab, Los Alamos, N.Mex. Geomorphic Change in Arid and Semi-Arid Landscapes Humans and the ecosystems on which they depend are vulnerable to a variety of natural hazards and their mismanage- GSA Quaternary Geology and Geomorphology Division ment. This session will explore the response to, and need for, Quaternary Geology/Geomorphology; Environmental mitigation of large-scale hazards with long time scales. Geoscience; Paleoclimatology/Paleoceanography
14 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 15 CALL FOR PAPERS
Rocky Mountain National Park. Photo by Martin Miller. and forms. Quaternary and potential future climates on slope processes est changes in moisture. This session explores effects of late changes in vegetation and weathering can result from mod Mexico, Albuquerque, N.Mex. Albuquerque, N.Mex.; Peter J. Fawcett, University of New N.Mex.; Grant A. Meyer, University of New Mexico, Leslie D. McFadden, University of New Mexico, Albuquerque, 1 Dryland slopes are climatically sensitive because large 6
First Announcement • Denver2004 Annual Meeting • November 7–10 - Technology, Socorro, N.Mex.; Richard P. Hooper, Consortium John L. Wilson, New Mexico institute of Mining and Geoscience Hydrogeology; Geochemistry, Aqueous; Environmental GSA Hydrogeology Division T2. Journal are not limited to authors in upcoming issue of related geosciences will be highlighted. Speakers include but Clifford I. Voss, U.S. Geological Survey, Reston, Va. Hydrogeology Water Association Hydrogeologists U.S. National Committee; National Ground GSA Hydrogeology Division; International Association of T1. Visions of future science and practice in hydrogeology and Please use the online electronic abstract form found on Abstracts Deadline: July 13 discipline session. the incorrect mode will be transferred automatically to a INDICATED in the description. An abstract submitted in ONLY IN THE MODE (oral or poster) AND CATEGORIES fied as they appear on the abstract form. PLEASE SUBMIT each topical description below, the categories are identi you may choose up to three scientific categories. After Papers can be submitted to a specific topical session and exchange of interdisciplinary, state-of-the-art information. volunteered papers. Sessions are designed to promote the sessions are topically focused with a mix of invited and Below is a listing of all approved topical sessions. These mineralogy). focused on disciplines (e.g., environmental geoscience, Committee representatives organize the papers in sessions your abstract would fit best. Joint Technical Program may choose up to three discipline categories you feel From the list found on the electronic abstract form, you Discipline Sessions [email protected]. electronically, contact Nancy Carlson, (303) 357-1061, $30 for all others. If you cannot submit your abstract mission fee will be charged. The fee is $18 for students; the GSA Web site, www.geosociety.org. An abstract sub
Implications for Hydrogeology Upcoming Revolutions in Observing Systems: The Future of Hydrogeology TOPICAL AND DISCIPLINE SESSIONS DISCIPLINE AND TOPICAL on “The Future of Hydrogeology.” ORAL ABSTRACTS DEADLINE: JULY 13 DEADLINE: ABSTRACTS INVITED AND VOLUNTEERED PAPERS VOLUNTEERED AND INVITED TOPICAL SESSIONS TOPICAL APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY Hydrogeology - - GSA GSA TODAY, 2004 APRIL/MAY First Announcement • Denver2004 Annual Meeting • November 7–10
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First Announcement • Denver2004 Annual Meeting • November 7–10 APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY habit urban areas and cause drastic effects on hydrologic sys Sharp, The University of Texas, Austin, Texas John E. McCray, University of Texas, Austin, Texas; John M. W. Berry Lyons, The Ohio State University, Columbus, Ohio; Anne E. Carey, The Ohio State University, Columbus, Ohio; Hydrogeology; Environmental Geoscience; Engineering Geology GSA Hydrogeology Division; GSA Engineering Geology Division T6. less than 10 years. ORAL now appears that in many areas the supply will be depleted in buyers that the aquifers would supply water for 100 years. It for new housing developments. The developers told home Denver, Colo. John Ezra Moore, U.S. Environmental Protection Agency, Peter Barkmann, Colorado Geological Survey, Denver, Colo.; Communication Hydrogeology; Engineering Geology; Geoscience Information/ Hydrogeologists U.S. National Committee; GSA Public Policy GSA Hydrogeology Division; International Association of T5. nuclear waste disposal. ORAL wastewater treatment, mining hydrology, karst hydrology, and honored for his contributions to water-resource exploration, dents in environmental hydrogeology, Dick Parizek is being Bair, Ohio State University, Columbus, Ohio Ward E. Sanford, U.S. Geological Survey, Reston, Va.; E. Scott Hydrogeology; Environmental Geoscience; Engineering Geology GSA Hydrogeology Division T4. ment of hydrogeology (1885–1985) in the United States. ORAL Denver, Colo.; Philip LaMoreaux, Tuscaloosa, Ala. John Ezra Moore, U.S. Environmental Protection Agency, Hydrogeology; History of Geology; Geoscience Education Hydrogeologists U.S. National Committee GSA Hydrogeology Division; International Association of T3. and conceptual development. ORAL solicited that explore how such systems aid in model testing derstanding of fundamental hydrologic processes. Papers are portunities for hydrogeology to test concepts and to refine un Inc., Washington, D.C. of Universities for the Advancement of Hydrologic Science, GSA GSA TODAY, 2004 APRIL/MAY By 2005, approximately 65% of Earth’s population will in Southeast Denver relies on bedrock aquifers to supply water After 40 years of research and advising 100 graduate stu The session will describe the historical basis for the develop Proposed environmental observing systems provide op
Suburbanization on Water Resources Hydrologic Impacts of Urbanization and Denver Basin Bedrock Aquifers Groundwater Depletion and Overexploitation in the Hydrogeology: In Honor of Dick Parizek Over 40 Years of Influence in Environmental Lohman, and John Ferris Celebrating the Contributions of O.E. Meinzer, Stan History of Hydrogeology in the United States: First Announcement • Denver2004 Annual Meeting • November 7–10
------Hydrogeology GSA Hydrogeology Division T8. these complex systems. ORAL grated approaches to understanding the physical controls on in mountainous terrain. This session focuses on new and inte focused on surface water, little is known about groundwater Jonathan Saul Caine, U.S. Geological Survey, Denver, Colo. Andrew H. Manning, U.S. Geological Survey, Denver, Colo.; Aqueous Hydrogeology; Environmental Geoscience; Geochemistry, GSA Hydrogeology Division; U.S. Geological Survey T7. planning. ORAL water supply, water quality, ecosystem health, and land-use tems. This session details the consequences of urbanization on schemes, technologies, and interagency collaboration. ORAL tions that describe advantages and limitations of monitoring and other hydrogeologic unknowns. We welcome contribu lenging because of the magnitude of scale, heterogeneity, David R. Wunsch, Concord, N.H.; Charles J. Taylor Hydrogeology; Geoscience Information/Communication Water Association Scientists and Engineers, a Division of the National Ground GSA Hydrogeology Division; Association of Ground Water T10. POSTER water consumption increases on water resources. ORAL and mate change, land use change, and projected population and ecosystem needs taking into account potential impacts of cli of water resources in a sustainable manner to meet human and Sophocleous, The University of Kansas, Lawrence, Kans. Bridget R. Scanlon, University of Texas, Austin, Texas; Marios Hydrogeology; Environmental Geoscience GSA Geology and Public Policy Committee T9. innovative solutions to related environmental problems. ORAL pact mechanisms in environmentally sensitive watersheds, and groundwater surface-water interplay in pollutant transfer, im tershed pollutant transport and water-quality issues including John E. McCray, University of Texas, Austin, Texas Geoffrey D. Thyne, Colorado School of Mines, Golden, Colo.; Because mountain hydrologic studies have traditionally Regional and statewide groundwater monitoring is chal This session will focus on research related to management This session invites topics in all aspects of mountain wa
Water Interplay in Pollutant Transfer Issues,Quality Including Groundwater Surface- Mountain Watershed Pollutant Transport and Water in Mountainous Terrain The Occurrence, Storage, and Flow of Groundwater Sustainable Management of Water Resources Limitations Limitations Regional and Statewide Levels—Advantages and Comprehensive Monitoring Approaches at - -
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- - 7 - CALL FOR PAPERS FOR CALL CALL FOR PAPERS sessing the value of input data are also examined. ORAL investigations. Improving advanced model applications and as tions of fluid flow and solute transport models for groundwater Rene Therrien, Université Laval, Quebec City, Quebec David L. Rudolph, University of Waterloo, Waterloo, Ontario; Hydrogeology GSA Hydrogeology Division T15. data acquisition and analysis techniques. ORAL case studies of successful field programs and reports on new ical studies as applied to groundwater issues. It will include Lansing, Mich. Colo.; David W. Hyndman, Michigan State University, East Dennis L. Harry, Colorado State University, Fort Collins, Environmental Geoscience Hydrogeology; Geophysics/Tectonophysics/Seismology; GSA Geophysics Division; GSA Hydrogeology Division T14. processes in heterogeneous flow systems. ORAL and POSTER titioners toward better describing and understanding transport and chemical transport will be shared by researchers and prac Ritzi, Wright State University, Dayton, Ohio Zhenxue Dai, Wright State University, Dayton, Ohio; Robert W. Hydrogeology GSA Hydrogeology Division T13. taminant sites to regional systems. ORAL fractured rocks over a broad range of length scales, from con Paul A. Hsieh, U.S. Geological Survey, Menlo Park, Calif. Hydrogeology GSA Hydrogeology Division T12. tion and/or beneficial use aspects. ORAL their hydraulic and geochemical behavior, including remedia may persist for years. This session will present investigations of and geotechnical projects create environmental impacts that W.Va.; Mary Stoertz, Ohio University, Athens, Ohio Joseph J. Donovan, West Virginia University, Morgtantown, Hydrogeology; Geochemistry, Aqueous GSA Hydrogeology Division T11. 1 This session addresses current pitfalls, misuses, and limita This session showcases integrated geophysical and geolog Advances in characterizing and modeling groundwater flow Advances in quantitative analysis of field investigations in Anthropogenic aquifers formed by mining, waste disposal, 8
Groundwater Modeling Tools in Practice? How Effectively Are We Using Advanced Resource Management Applications of Geophysics to Groundwater Physically Heterogeneous Media Modeling Flow and Transport in Chemically and Fluid Flow and Solute Transport in Fractured Rocks Aquifers Hydraulic and Geochemical Behavior of Man-Made First Announcement • Denver2004 Annual Meeting • November 7–10 ------ogy of both near-surface and deeply-buried aquitards, includ Wisconsin Geological and Natural History Survey,and Natural Madison, History Wis.Survey, Madison, Wis.; Timothy Waterloo,T. Eaton, Waterloo, Ontario; David Hart, WisconsinHistory GeologicalSurvey, Madison, Wis.; Beth Parker, UniversityKenneth of R. Bradbury, Wisconsin Geological and Natural Hydrogeology; Environmental Geoscience GSA Hydrogeology Division T17. foundations for new directions in these efforts. ORAL groundwater into watershed models, and to perhaps lay the in integrating surface water into groundwater models and Tom Winter, U.S. Geological Survey, Lakewood, Colo. Hydrogeology; Environmental Geoscience GSA Hydrogeology Division; GSA Engineering Geology Division T16. Stephen J. Van der Hoven, Illinois State University, Normal, Ill.D. Kip Solomon, University of Utah, Salt Lake City, Utah; Hydrogeology; Geochemistry, Aqueous; Geomicrobiology GSA Hydrogeology Division T20. tion, and case studies in any hydrogeological application.new techniques, ORAL methods for tracer test design and ininterpreta recent years. This session is open to papers that describe Jeffrey McDonnell, Oregon State University, Corvallis, Ore. Craig E. Divine, Colorado School of Mines, Golden, Colo.; Hydrogeology; Geochemistry, Other Hydrogeologists—International Commission on Tracers GSA Hydrogeology Division; International Association of T19. of airborne soot. ORAL ban, industrial, and agricultural land, including the deposition tion of organic and inorganic contaminants in runoff from ur garding the survey, characterization, attenuation, and remedia William Blanford, Louisiana State University, Baton Rouge, La. Thomas Boving, University of Rhode Island, Kingston, R.I.; Geoscience Hydrogeology; Geochemistry, Aqueous; Environmental GSA Hydrogeology Division T18. istry, monitoring, and modeling. ORAL ing physical characterization, contaminant transport, geochem This session focuses on recent advances in the hydrogeol This session is intended to present the latest developments The use of tracers in hydrogeology has significantly increased This session encourages papers on novel approaches re
Flow Systems Constraints on Flow and Transport in Groundwater Aquitard Studies: Understanding Geologic Linking Groundwater Models and Watershed Models Hydrogeologic Processes Dissolved Gases as Indicators of Geochemical and Methods, and Case Studies New Techniques, Design and Interpretation Innovative Tracer Applications in Hydrogeology: Contaminants in Runoff Characterization, Attenuation, and Remediation of APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY ------GSA GSA TODAY, 2004 APRIL/MAY First Announcement • Denver2004 Annual Meeting • November 7–10
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First Announcement • Denver2004 Annual Meeting • November 7–10 APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY colloid migration are sought. ORAL and POSTER characterize colloids, model contaminant sorption, or model their importance. Papers which describe new approaches to ing of colloid abundance and characteristics hampers assessing John C. Seaman, The University of Georgia, Aiken, S.C. James F. Ranville, Colorado School of Mines, Golden, Colo.; Geoscience Hydrogeology; Geochemistry, Aqueous; Environmental GSA Hydrogeology Division T22. ORAL and POSTER charge to the hyperarid nitrate deposits of the Atacama Desert. from such diverse environments as domestic septic tank dis fate and transport of nitrogen species in environments ranging cists, soil chemists, and microbiologists to shed light on the Edwards, Oxford University, Oxford Scott W. Tyler, University of Nevada, Reno, Nev.; W. Mike Hydrogeology; Geochemistry, Aqueous; Geomicrobiology GSA Hydrogeology Division T21. ORAL and POSTER etc.). Field, laboratory, and modeling studies will be included. travel times, rates of recharge, denitrification, paleorecharge, hydrogeologic processes (e.g., redox reactions, groundwater GSA GSA TODAY, 2004 APRIL/MAY Colloids occur in most natural waters. A limited understand This session seeks to bring together hydrologists, soil physi Dissolved gases have been used to investigate a variety of
Waters Assessing the Importance of Colloids in Natural Vadose Zone Nitrogen: Sources, Fate and Transport First Announcement • Denver2004 Annual Meeting • November 7–10
- - - Isabelle M. Cozzarelli, U.S. Geological Survey, Reston, Va.; Hydrogeology; Geochemistry, Organic; Geomicrobiology GSA Hydrogeology Division T24. ORAL as limiting nutrients) and accumulation in sediments and soils. toxicological consequences, ecology (e.g., food web dynamics, vironment related to sources, transport, controls on mobility, W. Berry Lyons, The Ohio State University, Columbus, Ohio LeeAnn Munk, University of Alaska Anchorage, Alaska; David T. Long, Michigan State University, East Lansing, Mich.; Geomicrobiology Geochemistry, Aqueous; Environmental Geoscience; Cosmochemistry International Association of Geochemistry and T23. on her work are invited. ORAL and POSTER reer contribution of Mary Jo Baedecker. Presentations building systems impacted by human activities, has been the major ca matter in subsurface environments, focusing on hydrogeologic Robert P. Eaganhouse, U.S. Geological Survey, Reston, Va.Janet S. Herman, University of Virginia, Charlottesville, Va.; Papers are invited on the study of trace elements in the en Elucidating fundamental redox reactions driven by organic
Baedecker Highway: A Tribute to the Career of Mary Jo Environments as Drivers on the Redox-Reaction Organic Compounds in Near-Surface Elements in the Environment Sources, Transport, Fate, and Toxicology of Trace
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9 - - CALL FOR PAPERS FOR CALL CALL FOR PAPERS ORAL and POSTER tion from related hydrogeologic and biogeochemical settings. and latest advances. We encourage interdisciplinary participa come contributions that highlight these major achievements interactions between them in cave and karst settings. We wel standing microbial systems, geochemical processes, and the conference, there has been considerable progress in under Northup, University of New Mexico, Albuquerque, N.Mex. Dogwiler, Winona State University, Winona, Minn.; Diana Annette Engel, The University of Texas, Austin, Texas; Toby Hydrogeology; Geomicrobiology; Geochemistry, Other Geobiology and Geomicrobiology Division GSA Hydrogeology Division; Karst Waters Institute; GSA T28. data collection needs to support modeling efforts. ORAL either new or existing tools, and improved understanding of butions in new modeling tools, guidelines for applications of the water resources of karst systems. We seek original contri tion to support the quantitative evaluation and management of pabilities for karst aquifer characterization and flow representa Antonio, Texas Manitoba; Ron Green, Southwest Research Institute, San Allan D. Woodbury, University of Manitoba, Winnipeg, Geoscience Hydrogeology; Sediments, Carbonates; Environmental GSA Hydrogeology Division T27. physical process. ORAL and POSTER demonstrating correlation, consistency, responsiveness and a downgrade beneficial use. Causal factors may be identified by trends related to urban and agricultural development may New South Wales, Australia Wendy A. Timms, University of New South Wales; Manly Vale, Geoscience Geochemistry, Aqueous; Hydrogeology; Environmental GSA Hydrogeology Division T26. ORAL and POSTER hydrologic and biogeochemical processes in large river basins. discharge as a tool for examining spatio-temporal evolution of ers of water, gases, and dissolved inorganic species in river John Gibson, Environ Canada, Victoria, British Columbia Leonard I. Wassenaar, Environ Canada, Saskatoon,Geochemistry, Saskatchewan; Other Geochemistry, Aqueous; Environmental Geoscience; GSA Quaternary Geology and Geomorphology Division T25. 2 In the ten years since the Karst Waters Institute–sponsored The overall theme of the session is to examine enhanced ca Seasonal and long term (decadal) groundwater quality This session explores the application of stable isotope trac 0
Redox Geochemistry New Perspectives in Karst Geomicrobiology and through Karst Aquifers Characterization and Representation of Flow Changes in AquiferAlluvial Systems Seasonal and Long-Term Groundwater Quality Biogeochemical Cycling in Large River Basins Stable Isotope Tracers of Water Balance and First Announcement • Denver2004 Annual Meeting • November 7–10 ------Donald McFarlane, The Claremont Colleges, Claremont, Calif.; Geomorphology; Geochemistry, Other Archaeological Geology; Quaternary Geology/ GSA Archaeological Geology Division; Karst Waters Institute T30. licly managed karst terrains. ORAL and POSTER mental and significant discoveries to applied research in pub cave and karst systems. This session focuses on both funda facilitated important advancements in our understanding of Mining and Technology, Socorro, N.Mex. Carlsbad, N.Mex.; Penelope J. Boston, New Mexico Institute of Louise D. Hose, National Cave and Karst Research Institute, Environmental Geoscience Quaternary Geology/Geomorphology; Hydrogeology; Institute National Park Service; National Cave and Karst Research T29. an increasingly broad range of users. POSTER highlight innovative mapping products that are being used by and management of water and land resources. The session will Minn.; Peter T. Lyttle, U.S. Geological Survey, Reston, Va. Ill.; Harvey Thorleifson, Minnesota Geological Survey, St. Paul, Richard C. Berg, Illinois State Geological Survey, Champaign, Engineering Geology Quaternary Geology/Geomorphology; Hydrogeology; Hydrogeology Division; Association of American State GeologistsDivision; GSA Geology and Public Policy Committee; GSA GSA Engineering Geology Division; GSA Geology and Society GSA Quaternary Geology and Geomorphology Division; T32. silience and future of our fluvial systems. ORAL of watersheds to the imposed regulation informs us of the re sediment delivery to most watersheds. The myriad responses Ellen E. Wohl, Colorado State University, Fort Collins, Colo. Sara L. Rathburn, Colorado State University, Fort Collins, Colo.; Quaternary Geology/Geomorphology Engineering Geology Division GSA Quaternary Geology and Geomorphology Division; GSA T31. cal records. ORAL and POSTER innovative techniques to resolve long and complex speleologi experimental and/or successful application of multiple and/or ological advances in the dating of cave deposits, with the Joyce Lundberg, Carleton University, Ottawa, Ontario Public lands provide unique natural laboratories and have Geological mapping is a key to environmental protection Water storage and consumption structures dictate water and Addressing the integration of technological and method
Cave Deposits New and Multidisciplinary Approaches to Dating Lands Hallways: Research on Our Public Cave and Karst From Subterranean Crawlways to Scientific and Land Resource Planning (Posters) Geological Mapping: Providing for Successful Water Watershed Processes Impacts of Water Storage and Consumption on APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY - - - - - GSA GSA TODAY, 2004 APRIL/MAY First Announcement • Denver2004 Annual Meeting • November 7–10
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First Announcement • Denver2004 Annual Meeting • November 7–10 APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY Public Policy Geophysics/Tectonophysics/Seismology; Engineering Geology; GSA Geophysics Division T36. innovative methods. ORAL of geochemistry, hydrogeology, geospatial analysis, or other storage (sequestration). These approaches may include aspects pacity and integrity of geologic formations for long-term CO Brennan, U.S. Geological Survey, Reston, Va. Jonathan J. Kolak, U.S. Geological Survey, Reston, Va.; Sean Stratigraphy; Hydrogeology; Structural Geology GSA Geology and Public Policy Committee T35. models. ORAL that these are represented and updated in site (performance) itive—identify critical features and measurements and assure models for performance assessment. Case histories. Focus pos Lexington, S.C. S.C.; Van Price, Advanced Environmental Solutions, LLC, Wash.; Tom Temples, University of South Carolina, Columbia, George V. Last, Pacific Northwest National Lab, Richland, Environmental Geoscience; Hydrogeology; Public Policy GSA Hydrogeology Division T34. operation of geologic repositories for radioactive waste. ORAL science and engineering supporting the development and safe concerning repository performance. Presentations highlight Yucca Mountain present technical and regulatory challenges Vegas, Nev. Russell L. Patterson, Carlsbad, N.Mex.; Ronald M. Linden, Las Robert A. Levich, U.S. Department of Energy, Las Vegas, Nev.; Public Policy; Environmental Geoscience; Hydrogeology Geology and Public Policy Committee GSA Hydrogeology Division; U.S. Department of Energy; GSA T33. GSA GSA TODAY, 2004 APRIL/MAY This session will explore novel approaches to assess the ca Critical geo-input to be obtained and retained in computer Recertification of WIPP and license application submittal for
Sequestration Locating Geological Sites for Carbon Dioxide Geophysical Solutions for Characterizing and (Sequestration) Formations for Long-Term CO Assessment and Characterization of Geologic Features, Events, and Processes through Identification and Measurement of Critical Geoscience Input to Monitoring System Design of Nuclear Waste and Decommissioning Sites: Monitoring to PerformanceConfirm Assessment the Yucca Mountain Site, Southern Nevada Pilot Plant (WIPP) near Carlsbad, New Mexico, and Environmental Protection at the Waste Isolation to the Challenge of Regulatory Requirements and Geologic Disposal of Radioactive Waste: Rising First Announcement • Denver2004 Annual Meeting • November 7–10
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- - synthetic aperture radar], digital elevation models, or hyper ing LiDAR [light detection and ranging], InSAR [interferometric system, Global Positioning System, or remote sensing (includ Norman S. Levine, Charleston, S.C. William C. Haneberg, Haneberg Geoscience, Seattle, Wash.; Information System; Public Policy Engineering Geology; Remote Sensing/Geographic GSA Engineering Geology Division T37. volved. ORAL dioxide sequestration as well as on the societal issues in mapping buried structures that could serve as sites for carbon subsurface remote sensing for locating, characterizing, and Bloomington, Ind. Champaign, Ill.; John Rupp, Indiana Geological Survey, Ky.; Hannes E. Leetaru, Illinois State Geological Survey, James A. Drahovzal, University of Kentucky, Lexington, John H. McBride, Brigham Young University, Provo, Utah; interdisciplinary research. ORAL sent recent findings that can stimulate development of future chemical issues. It will provide a forum for researchers to pre- tion among earth scientists interested in environmental biogeo Rupali Datta, University of Texas, San Antonio, Texas Dibyendu Sarkar, University of Texas, San Antonio, Texas; Hydrogeology Environmental Geoscience; Geochemistry, Aqueous; Geomicrobiology Division GSA Hydrogeology Division; GSA Geobiology and T39. serving these goals. ORAL lenges. We solicit papers on source water protection strategiesand cultural variables and rural systems face particular chal man health. Supplies depend on hydrogeologic, economic, Assistance Center for Water Quality,Stephen Bowling Kenworthy, Green, WesternKy. KentuckyHoffman University Environmental Technical Research Institute,Center Bowling for Water Green, Ky.;Quality, BowlingJohn Green, All, Ky.; Western Chris Groves,Kentucky University TechnicalCommunication; Assistance Hydrogeology Environmental Geoscience; Geoscience Information/ Agency, Office of Water GSA Hydrogeology Division; U.S. Environmental Protection T38. karst, and other hazards. ORAL and POSTER flows, floods, neotectonic and volcanic processes, subsidence, spectral imaging) for mapping or simulating landslides, debris Case histories and research using geographic information Papers are solicited on using geophysical and geological This session will promote interchange of scientific informa Clean drinking water is a fundamental requirement for hu
Assessment GIS, GPS, and Remote Sensing in Geologic Hazard Biogeochemistry Current Perspectives in Environmental Small Systems Public Policy, and Hydrogeologic Realities for Rural Source Water Protection—Stakeholder Needs, - - - 2
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- CALL FOR PAPERS FOR CALL CALL FOR PAPERS ORAL and POSTER surface geologic processes to the ecology of various regions. logic knowledge in the Gulf of Mexico, and (2) to relate the Research, Corpus Christi, Texas Fla.; John W. Tunnell, Harte Institute for Gulf of Mexico Charles W. Holmes, Center for Coastal Geology, St. Petersburg, Quaternary Geology/Geomorphology Marine/Coastal Science; Environmental Geoscience; T41. depressional features. ORAL and POSTER phologic and hydrologic histories of Carolina bays and related Andrew H. Ivester, University of West Georgia, Carrollton, C.Ga. William Zanner, University of Nebraska, Lincoln, Nebr.; Stratigraphy Hydrogeology; Quaternary Geology/Geomorphology; GSA Hydrogeology Division T40. 2 The session’s goal is twofold: (1) to update the status of geo This session explores current understanding of the geomor 2
Relating Ecology to Geology The Gulf of Present,Mexico—Past, and Future: Related Features and Evolution of Coastal Plain Depressions and Hydrogeomorphology, Chemistry, Archaeology, First Announcement • Denver2004 Annual Meeting • November 7–10 - - rine microbial carbonates and demonstrates the diversity of re Robin Renaut, University of Saskatchewan,Michael SaskatoonR. Rosen, U.S. Geological Survey, Carson PaleoceanographyCity, Nev.; Limnogeology; Sediments, Carbonates; Paleoclimatology/ GSA Limnogeology Division T43. from riverine or wetland to deep lacustrine settings. ORAL ancient and modern terrestrial aquatic environments, ranging understanding and interpreting authigenic mineral processes in Deocampo, California State University, Sacramento, Calif. Daniel Larsen, University of Memphis, Memphis, Tenn.; Daniel Limnogeology; Sediments, Carbonates; Sediments, Clastic GSA Limnogeology Division; GSA Sedimentary Geology Division T42. will be considered. ORAL lacustrine systems, but other nonmarine microbial carbonates cords that can be derived from these deposits. Emphasis is on This session explores the sedimentological record of nonma This session will present new ideas and concepts toward
Microbialites, Stromatolites and Thrombolites) of Nonmarine Microbial Carbonates (Tufas, Hydrologic and Paleoclimatic Significance Terrestrial Aquatic Environments Authigenic Minerals in Modern and Ancient APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY - - GSA GSA TODAY, 2004 APRIL/MAY First Announcement • Denver2004 Annual Meeting • November 7–10
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First Announcement • Denver2004 Annual Meeting • November 7–10 APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY ORAL sphere. We will focus on a combined data-modeling approach. These changes have implications for Earth’s climate and bio chemistry of the oceans during the Precambrian and Paleozoic. Wash. Ohio; Michael C. Pope, Washington State University, Pullman, Matthew R. Saltzman, The Ohio State University, Columbus, Geochemistry, Other Paleoclimatology/Paleoceanography; Sediments, Carbonates; T47. hot spring deposits are also welcomed. ORAL evidence for life might be preserved. Analog studies of ancient springs with an eye for mineral-microbe relationships and how Cady, Portland State University, Portland, Ore. Paul A. Schroeder, University of Georgia, Athens, Ga.; Sherry L. Aqueous Geomicrobiology; Paleontology/Paleobotany; Geochemistry, GSA Geobiology and Geomicrobiology Division T46. ORAL and POSTER of alkalaphilic microbes, mineral facies, and redox gradients. Topics will focus on the geochemical and isotopic signatures weathering, evaporite precipitation, and microbial physiology. Lisa M. Pratt, Indiana University, Bloomington, Ind. Thomas R. Kulp, U.S. Geological Survey, Menlo Park, Calif.; David Finkelstein, Indiana University, Bloomington, Ind.; Geomicrobiology; Geochemistry, Aqueous; Limnogeology and Sedimentary Geology GSA Geobiology and Geomicrobiology Division; Limnogeology T45. of terrestrial landscape change, focusing onand stratigraphythe Cenozoic. for interpreting ORAL the lacustrine geologic record dresses the intersections of geomorphology, sedimentology, geomorphic, tectonic, and climatic events. This session ad Alan R. Carroll, University of Wisconsin, Madison, Wis. Alaska; Eric C. Carson, San Jacinto College, Houston, Texas; Jeffrey T. Pietras, BP Exploration Alaska, Inc., Anchorage, Sediments, Clastic Limnogeology; Quaternary Geology/Geomorphology; Geomorphology Division; GSA Sedimentary Geology Division GSA Limnogeology Division; GSA Quaternary Geology and T44. GSA GSA TODAY, 2004 APRIL/MAY Considerable evidence reveals significant changes in the This session invites those who study modern terrestrial hot This session will elucidate the role of alkaline solutions in Lacustrine strata contain a bountiful archive of terrestrial
Paleozoic Ocean Chemistry through the Precambrian and Day Systems Preservation of Thermophiles in Past and Present- Biomineralization in Terrestrial Hot Springs: The Semiarid Settings into Microbial Physiology and Mineral Facies in EvaporativeAlkaline Lakes and Playas: Insights Lacustrine Records of Landscape Evolution First Announcement • Denver2004 Annual Meeting • November 7–10
- - University of Florida, Gainesville, Fla. Magnetic Field Laboratory, Tallahassee, Fla.; Pennilyn Higgins, Yang Wang, Florida State University and National High Paleontology/Paleobotany Geochemistry, Other; Paleoclimatology/Paleoceanography; T49. ORAL and POSTER chemistry from both modeling results and empirical data. ing the global carbon cycle and secular changes in seawater rate of seafloor crust production as well as implications regard University, New Haven, Conn. Rowley, University of Chicago, Chicago, Ill.; Mark Pagani, Yale Jenney M. Hall, Yale University, New Haven, Conn.; David B. Other Paleoclimatology/Paleoceanography; Tectonics; Geochemistry, T48. Paleontology/Paleobotany Paleontological Society T52. biodiversity in modern and ancient systems. ORAL nisms and phylogenetic relationships underpinning protistan session focuses on understanding the evolutionary mecha vides the foundation for diverse global change studies. This Huber, Smithsonian Institution, Washington, D.C. Susan T. Goldstein, University of Georgia, Athens, Ga.; Brian T. Paleoceanography; Geomicrobiology Paleontology/Paleobotany; Paleoclimatology/ Cushman Foundation T51. these ecosystems and their evolution. ORAL Phanerozoic. This meeting will review new data and ideas on that have seen a range of evolutionary innovations during the Museum, London, United Kingdom Leiden, Netherlands; Paul D. Taylor, The Natural History Stephen K. Donovan, National Natuurhistorisch Museum, Stratigraphy Paleontology/Paleobotany; Marine/Coastal Science; Paleontological Society T50. links among biological, climatic, and tectonic change. ORAL sion will examine isotopic records to better understand the tool for reconstructing past terrestrial environments. This ses Stable isotope analysis has been established as a valuable This session invites evidence for and against changes in the Rich and well-documented, the protistan fossil record pro Marine hard substrates represent a distinct suite of habitats
Late Cenozoic Environmental Change Stable Isotopes in Fossils and Paleosols: Records of Spreading Rates Since the Mesozoic Evidence For and Against Changes in Seafloor Unraveling the History of Ocean Crust Production: Gastropods The Hunters and the Hunted: Predation On and By Evolutionary Patterns Protistan Paleobiodiversity: Understanding Evolution Marine Hard Substrates: Colonization and - 2
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- CALL FOR PAPERS FOR CALL CALL FOR PAPERS Colo. Florissant, Colo.; Dena Smith, University of Colorado, Boulder, Herbert W. Meyer, Florissant Fossil Beds National Monument, Communication; History of Geology Paleontology/Paleobotany; Geoscience Information/ Paleontological Society T56. early Middle Triassic. ORAL Permian extinction and initiation of the biotic recovery in the biological trends across the critical interval between the End- environmental conditions during the period as well as paleo Earth’s history. This session will examine the usual nature of Calif. Frank Corsetti, University of Southern California, Los Angeles, Adam D. Woods, California State University, Fullerton, Calif.; Paleoclimatology/Paleoceanography Paleontology/Paleobotany; Sediments, Carbonates; Paleontological Society T55. and POSTER C4 photosynthesis during the Mesozoic and Cenozoic. ORAL ature, and seasonal aridity. This session explores the history of our interpretation of atmospheric CO Grocke, McMaster University, Hamilton, Ontario Mark Pagani, Yale University, New Haven, Conn.; Darren Paleoceanography; Geochemistry Organic Paleontology/Paleobotany; Paleoclimatology/ T54. of terrestrial arthropod clades? ORAL and POSTER well-known. What are the events that have led to the evolution named animal species on Earth. Their fossil record is far less Archibald, Harvard University, Cambridge, Mass. M. Smith, University of Colorado, Boulder, Colo.; S. Bruce Robert E. Nelson, Colby College, Waterville, Maine; Dena Paleontology/Paleobotany; Sediments, Clastic; Stratigraphy Division Paleontological Society; GSA Geobiology and Geomicrobiology T53. ing the fossil record. ORAL on and by fossil gastropods and Recent taxa useful in interpret sequences of predation. Presentations will address predation actions useful in studying the ecological and evolutionary con Carolina, Wilmington, N.C. Bellingham, Wash.; Gregory P. Dietl, University of North N.C.; Thor A. Hansen, Western Washington University, Patricia H. Kelley, University of North Carolina, Wilmington, 2 The Early Triassic was one of the most unique periods in The evolutionary history and expansion of C4 plants impact Insects and terrestrial arthropods comprise >90% of all Fossil gastropods preserve evidence of predator-prey inter 4
Florissant Formation, Colorado Paleontology and Stratigraphy of the Late Eocene of Life Triassic Environment and Its Effect on the History Anatomy of an Anachronistic Period: The Early The Evolution and Expansion of C4 Plants Arthropods Critical Events in the Evolution of Terrestrial First Announcement • Denver2004 Annual Meeting • November 7–10 2 concentrations, temper - - - - - North American Commission on Stratigraphic Nomenclature T58. in the guise of sequence and event stratigraphy. ORAL by the facies concept for decades but has made a resurgence widely accepted during the nineteenth century. It was eclipsed Charles W. Byers, University of Wisconsin, Madison, Wis. History of Geology; Stratigraphy Division GSA History of Geology Division; GSA Sedimentary Geology T57. technology. ORAL tostratigraphy, conservation, and applications of information onomy, taphonomy, paleoecology, lithostratigraphy, magne and vertebrates from Florissant, including recent work in tax setting, and historical study of the late Eocene plants, insects, tions. ORAL and POSTER those changes, and on his research and educational contribu geology. Students and colleagues of Bob Dott will reflect on mentary geology and Earth’s history and in the philosophy of Kocurek, University of Texas, Austin, Texas Marjorie A. Chan, University of Utah, Salt Lake City, Utah; Gary Joanne Bourgeois, University of Washington, Seattle, Wash.; Stratigraphy; History of Geology; Geoscience Education Division GSA Sedimentary Geology Division; GSA History of Geology T60. lithostratigraphic archives. ORAL Emphasis will be placed on integrating geochemical with record of the Carboniferous and Permian systems worldwide. tologists and geochemists who are working on the climate Tracy D. Frank, University of Nebraska, Lincoln, Nebr. Christopher R. Fielding, University of Nebraska, Lincoln, Nebr.; Stratigraphy; Sediments, Clastic; Sediments, Carbonates T59. its, and layered mafic intrusions. ORAL derstanding of continental accretion, paleoplacers, ore depos and igneous provinces. These methods may improve our un logic and stratigraphic concepts with studies of metamorphic Lisa Lytle, Golden, Colo.; Thomas R. Fisher, Golden, Colo. Petrology, Metamorphic; Sediments, Clastic; Economic Geology The concept of layer-cake (time-parallel) stratigraphy was This session will explore the paleontology, stratigraphic Bob Dott’s career has spanned important changes in sedi This session aims to bring together stratigraphers, sedimen This session will focus on integration of modern sedimento
Terranes and Igneous Provinces Concepts Applied to the Study of Metamorphic Sedimentary and Stratigraphic Principles and Now The Concept of Layer-Cake Stratigraphy—Then and Career and Contributions of Robert H. Dott Jr. Retrospective and Prospective: In Honor of the Sedimentary Geology and Earth History: Northern Hemisphere Records in Time and Space: Comparison of Southern and Resolving the Late Paleozoic Gondwanan Ice Age APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY ------GSA GSA TODAY, 2004 APRIL/MAY First Announcement • Denver2004 Annual Meeting • November 7–10
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First Announcement • Denver2004 Annual Meeting • November 7–10 APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY are at the cutting edge of the new field of transition metal iso Jamie J. Wilkinson, Imperial College London, London Geoscience Economic Geology; Geochemistry, Other; Environmental T65. to secular variations in ocean chemistry. ORAL formation of diverse types in correlative strata, and their links ment-hosted metal accumulations, the conditions that result in Hiatt, University of Wisconsin, Oshkosh, Wis. Poul Emsbo, U.S. Geological Survey, Denver, Colo.; Eric E. Economic Geology Society of Economic Geologists T64. cated to Charles Pillmore. ORAL and POSTER done throughout the Raton Basin. The session will be dedi geology, tectonic, geochemistry and hydrologic research being Geological Survey, Denver, Colo. Technology, Socorro, N.Mex.; Christopher J. Carroll, Colorado Gretchen K. Hoffman, New Mexico Institute of Mining and Coal Geology; Tectonics; Hydrogeology GSA Coal Geology Division T63. quences. ORAL all aspects of these catastrophic fires, including global conse of Georgia, Swainsboro, Ga.; Ed Heffern, Cheyenne, Wyo. Glenn Blair Stracher, East Georgia College, University System Coal Geology; Environmental Geoscience; Engineering Geology GSA Coal Geology Division T62. ORAL and POSTER of our interpretation and understanding of the earth system. mate change. This revolution is providing context for much associated with a growing understanding of climate and cli Robert DeConto, University of Massachusetts, Amherst, Mass. Eric J. Barron, Pennsylvania State University, University Park,Paleontology/Paleobotany Pa.; Paleoclimatology/Paleoceanography; Marine/Coastal Science; Structural Geology and Tectonics Division Geomicrobiology Division; GSA Limnogeology Division; GSA GSA Sedimentary Geology Division; GSA Geobiology and T61. GSA GSA TODAY, 2004 APRIL/MAY The aim of this session is to bring together researchers who This multidisciplinary session will explore the origin of sedi This session is designed to highlight the latest regional coal This session will feature presentations and discussions about A remarkable revolution has taken place in the geosciences
and Applications Stable Isotopes of Ore-forming Metals: Analysis Black Shales Metal Deposits Sediment-Hosted to Metalliferous Giant Basins: Accumulations in Sedimentary among Genetic Links Syngenetic Metal Raton Basin: From Coal to Coalbed Methane Consequences? Wild Coal Fires: Burning Questions with Global Hay Climate Change: A Session in Honor of W.William Frontier in Understanding the Geologic Record of First Announcement • Denver2004 Annual Meeting • November 7–10
- - - - - Mineralogy/Crystallography Mineralogical Society of America T67. the evidence and behavior of high CO implications. This session is intended to explore and contrast and precipitate, but have generally neglected multiphase fluid Alamos, N.Mex. N.Mex.; David R. Janecky, Los Alamos National Lab, Los John P. Kaszuba, Los Alamos National Lab, Los Alamos, Metamorphic Geochemistry, Aqueous; Geochemistry, Other; Petrology, Geochemical Society T66. derstanding problems in ore deposit genesis. ORAL tope geochemistry, applying metal isotope systematics to un session in honor of Paul Ribbe. ORAL and POSTER Mineralogy and Geochemistry pect of the topics that have been covered by the Virginia Tech, Blacksburg, Va. Ross Angel, Virginia Tech, Blacksburg, Va.; Nancy Ross, Petrology, Metamorphic Mineralogy/Crystallography; Petrology, Experimental; Mineralogical Society of America T69. geological environments. ORAL and POSTER systems. This session will focus on nano-scale processes in tions in confined nanopores are different from those in bulk provide information about their formation. Geochemical reac Huifang Xu, University of New Mexico, Albuquerque, N.Mex. Environmental Geoscience Geochemistry, Other; Mineralogy/Crystallography; T68. scale structure and macroscale behavior. ORAL invites contributions that explore the relation between atomic factors that control mineral reaction mechanisms. This session ization techniques are providing a deeper understanding of the Michael C. Carpenter, Tucson, Ariz. Pa.; Jeffrey E. Post, Smithsonian Institution, Washington, D.C.; Peter J. Heaney, Pennsylvania State University, University Park, Geochemical reaction models include CO Contributions that reflect on any past, present or future as Nano-structures and self-assembled nano-structures can Innovations in microanalytical and microstructural character
Behaviors of Minerals Advanced Characterization of the andStructures Environments in Low to Moderate Temperature Crustal Fluids for Petrologic and Geochemical Processes Widespread Importance of Immiscible H Geochemistry Geochemistry of Paul Ribbe and the Reviews in Mineralogy and Looking Forward to the Past: A Session in Honor Systems in andEarth Nano-Structures Nano-Geochemistry are invited for this mineralogy 2 natural systems. ORAL 2 as a major ligand Reviews in 2 O-CO 2
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- - CALL FOR PAPERS FOR CALL CALL FOR PAPERS Precambrian (At Large); GSA Geophysics Division T74. changes. ORAL composition, and climatic changes as well as the rates of these on relationships between tectonics, change in atmospheric 2.0 Ga Earth’s evolution are invited. Session will be focused Rainbird, Geological Survey of Canada, Ottawa, Ontario of Western Australia, Western Australia, Australia; Robert H.Washington, Washington, D.C.; Mark E. Barley, The UniversityAndrey Bekker, Geophysical Lab, Carnegie Institution of Tectonics Precambrian Geology; Paleoclimatology/Paleoceanography; Geology, Astrobiology Program Sedimentary Geology Division, SEPM—Society for Sedimentary Precambrian (At Large); Geochemical Society; GSA T73. POSTER meteoritics, tektite studies, and ejecta stratigraphy. ORAL and impact modeling, shock metamorphism, mass extinctions, including astronomy, impact-related archaeology, cratering, University of Northern Colorado, Greeley, Colo. David King, Auburn University, Auburn, Ala; Jared Morrow, Planetary Geology GSA Planetary Geology Division T72. ing. ORAL and POSTER mental petrology, numerical models, field geology, and min include mineral chemistry and stability, melt inclusions, experi esis of granitic pegmatites are welcome. Topics to be covered David London, University of Oklahoma, Norman, Okla. Other Petrology, Igneous; Mineralogy/Crystallography; Geochemistry, Mineralogical Society of America T71. ORAL and POSTER action processes at the mm to cm scale in metamorphic rocks. a broad range of approaches to modeling deformation and re University of Iowa, Iowa City, Iowa W.D. Carlson, University of Texas, Austin, Texas; C.T. Foster, Crystallography Petrology, Metamorphic; Structural Geology; Mineralogy/ Division Mineralogical Society of America; GSA Structure and Tectonics T70. 2 Field-oriented and modeling studies dealing with the 2.5– A session devoted to the emerging field of impact studies, Recent contributions to the mineralogy, petrology, and gen This session will synthesize recent advances stemming from 6
Regimes in Earth History? 1500 to 2500 Ma: A Period of Changing Mantle Rates: Bridging Field Studies and Models Early Paleoproterozoic (2.5–2.0 Ga) Events and Impact Geology Mineralogy, Petrology, and Understanding Granitic Pegmatites: Recent Advances in Rocks ModelingProcesses Grain-Scale in Metamorphic First Announcement • Denver2004 Annual Meeting • November 7–10 - - - - in constraining the composition, age, physical properties, and amine the role that mantle and crustal xenolith studies play Park, Md. N.Mex.; Roberta L. Rudnick, University of Maryland, College Jane Selverstone, University of New Mexico, Albuquerque, Petrology, Metamorphic Geochemistry, Other; Geophysics/Tectonophysics/Seismology; Society of America; GSA Geophysics Division GSA Structural Geology and Tectonics Division; Mineralogical T75. supercontinent cycle, and paleoclimatic regimes. ORAL licited that deal with mantle dynamics, crustal evolution, the systems between 1500 and 2500 Ma. Papers are especially so Earth Observatory, Palisades, N.Y. Technology, Socorro, N.Mex.; Dallas Abbott, Lamont-Doherty Kent C. Condie, New Mexico Institute of Mining and Paleoceanography Precambrian Geology; Tectonics; Paleoclimatology/ climate in development of relief. ORAL and POSTER deformation, and relative importance of neotectonics versus tle to surface interconnections, geodynamics of intracratonic present topography, including studies of paleoelevation, man Eric Kirby, Pennsylvania State University, University Park, Pa. Quaternary Geology/Geomorphology Tectonics; Geophysics/Tectonophysics/Seismology; Geologists; Colorado Scientific Society; EarthScope Geomorphology Division; Rocky Mountain Association of Geophysics Division; GSA Quaternary Geology and GSA Structural Geology and Tectonics Division; GSA T77. EarthScope science program. ORAL and POSTER help shape an interdisciplinary approach to a still-embryonic geophysics, geomorphology, and geodynamics communities to the Rocky Mountain region, with linkages among the geology, Technology, Socorro, N.Mex. N.Mex.; Rick Aster, New Mexico Institute of Mining and Karl E. Karlstrom, University of New Mexico, Albuquerque, Quaternary Geology/Geomorphology Tectonics; Geophysics/Tectonophysics/Seismology; Geologists; Colorado Scientific Society; EarthScope Geophysics Division; Rocky Mountain Association of GSA Structural Geology and Tectonics Division; GSA T76. POSTER petrologic evolution of continental lithosphere. ORAL and We seek contributions from a diversity of disciplines to ex This session will focus on change and interaction of earth Studies of rock and surface uplift and development of the Synthesis of controversies related to lithospheric evolution of
Chemical Evolution of Continental Lithosphere A Xenolith Perspective on the Physical and Modern Topography of Neotectonics and Climate in Development of II: Surface Processes, Geodynamics, and the Roles SynthesisPre-EarthScope of the Rocky Mountains Geodynamic Controversies I: Framing the Key Geological, Geophysical, and SynthesisPre-EarthScope of the Rocky Mountains APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY - - - GSA GSA TODAY, 2004 APRIL/MAY First Announcement • Denver2004 Annual Meeting • November 7–10
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First Announcement • Denver2004 Annual Meeting • November 7–10 APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY Tectonics; Structural Geology; Stratigraphy Sedimentary Geology Sedimentary Geology Division; SEPM—Society for GSA Structural Geology and Tectonics Division; GSA T81. upper mantle. ORAL and POSTER basement leading to today’s geophysical state of the crust and tivation processes, and cumulative tectonic evolution of the location of major sutures, lithospheric stabilization and reac N.Mex. Karl E. Karlstrom, University of New Mexico, Albuquerque, Michael Williams, University of Massachusetts, Amherst, Mass.; Quaternary Geology/Geomorphology Tectonics; Geophysics/Tectonophysics/Seismology; Geologists; Colorado Scientific Society; EarthScope Geophysics Division; Rocky Mountain Association of GSA Structural Geology and Tectonics Division; GSA T80. and POSTER diverse geographic settings and scientific disciplines. ORAL actions in western Pangea, enabling integration of ideas from tations on late Paleozoic tectonics and tectonic-climatic inter Gerilyn S. Soreghan, University of Oklahoma, Norman, Okla. Charles F. Kluth, Colorado School of Mines, Golden, Colo.; Tectonics; Stratigraphy; Structural Geology Division; Friends of the Ancestral Rocky Mountains; EarthScopeGSA Structural Geology and Tectonics Division; GSA Geophysics T79. land structures and lithospheric processes. ORAL and POSTER tant insights into the linkage between basement-involved fore geophysical studies of Laramide structures that provide impor Rocky Mountain structures by presenting new geological and Snoke, University of Wyoming, Laramie, Wyo. Lageson, Montana State University, Bozeman, Mont.; Arthur Eric Erslev, Colorado State University, Fort Collins, Colo.; David Seismology Structural Geology; Tectonics; Geophysics/Tectonophysics/ Society; EarthScope Mountain Association of Geologists; Colorado Scientific Geophysics Division; Wyoming Geological Association; Rocky GSA Structural Geology and Tectonics Division; GSA T78. GSA GSA TODAY, 2004 APRIL/MAY Studies of processes of accretion of juvenile lithosphere, This session will provide a forum for new data and interpre This session honors Don Blackstone’s pioneering work on
Session Honoring SkippBetty Regional Geology of the Northern Rockies: A Evolution Crustal andStructure Precambrian Tectonic V: New Insights in Basement Tectonics, Deep SynthesisPre-EarthScope of the Rocky Mountains Orogenesis: The Greater Ancestral Rocky Mountains IV: New Ideas on Late Paleozoic Intraplate Pre-EarthScope Synthesis of the Rocky Mountains In Structures: Honor of Donald L. Blackstone Jr. Tectonics of Rocky Mountain Basement-Involved NewIII: Advances in Laramide Deformation and SynthesisPre-EarthScope of the Rocky Mountains First Announcement • Denver2004 Annual Meeting • November 7–10
- - - - - T83. ries. A tribute to the career of William A. Braddock. ORAL of the most scenic and geologically diverse outdoor laborato plishments of one of Colorado’s premier field geologists in one Nesse, University of Northern Colorado, Greeley, Colo. James C. Cole, U.S. Geological Survey, Denver, Colo.; William Precambrian Geology; Structural Geology; History of Geology GSA Structural Geology and Tectonics Division T82. ideas, and student papers are welcomed. ORAL and POSTER northern Rocky Mountains. Historical syntheses, state-of-the-art leontological, sedimentary, and structural development of the learned, taught, and led by example in understanding the pa Montana State University, Bozeman, Mont. Janecke, Utah State University, Logan, Utah; David Lageson, Paul K. Link, Idaho State University, Pocatello, Idaho; Susanne ORAL and POSTER existing data for paleogeographic and tectonic reconstructions. of terrane displacements; and the implications of new and lation, orogenesis, and plate motions; the amount and sense James E. Wright, University of Georgia, Athens, Ga. Flagstaff, Ariz.; Sandra Wyld, University of Georgia, Athens,Ga.; Paul Umhoefer, Northern Arizona University, Box 4099, Tectonics; Stratigraphy; Geophysics/Tectonophysics/Seismology Tectonics Division GSA Geophysics Division; GSA Structural Geology and T84. BATHOLITHS. ORAL National Science Foundation Continental Dynamics project Coast Mountains batholith and preliminary data from the tion of continental arcs, with a special emphasis on the geophysicists will present data and models on the evolu Paul Wetmore, University of Arizona, Tucson, Ariz. Christopher Andronicos, University of Texas, El Paso, Texas; Mihai N. Ducea, University of Arizona, Tucson, Ariz.; Seismology Tectonics; Petrology, Igneous; Geophysics/Tectonophysics/ Tectonics Division GSA Geophysics Division; GSA Structural Geology and An eclectic session reflecting the broad interests and accom For 50 years, Betty Skipp, U.S. Geological Survey, has, Session will focus on the interrelations among terrane trans Petrologists, geochronologists, structural geologists, and
Continental Crustal Genesis Cordilleran Arc Magmatism, BATHOLITHS and Geology of the Northern Colorado Front Range Bill Braddock’s Backyard—Proterozoic to Recent Paleogeographic Reconstructions North American Cordillera, and Implications for Interactions in the Late Mesozoic to Early Cenozoic Terrane Translation, Orogenesis, and Plate Title Sponsor of the 2004 GSA Annual Meeting. -
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7 - - - CALL FOR PAPERS FOR CALL CALL FOR PAPERS and morphology. ORAL and POSTER mechanisms, rates of uplift and erosion, kinematic processes, genic systems through deformation and elevation histories and land fold-thrust belts and adjacent hinterland plateaus in oro Pasadena, Calif. Ala.; Nadine McQuarrie, California Institute of Technology, Delores M. Robinson, University of Alabama, Tuscaloosa, Geology Tectonics; Geophysics/Tectonophysics/Seismology; Structural Geophysics Division GSA Structural Geology and Tectonics Division; GSA T88. locality of continent-continent convergence. ORAL ing broader implications of information gained from this type will be examined with the goal of disseminating and explor Richard A. Marston, Oklahoma State University, Stillwater,Elizabeth Okla.J. Catlos, Oklahoma State University, Stillwater, Okla.; Tectonics; Volcanology; Geophysics/Tectonophysics/SeismologyGSA Structural Geology and Tectonics Division T87. the evolution of continental margins and andorogenic growth. belts. This ORALsession explores their occurrencements and andintraoceanic role in arcs, are a locus of crustal deformation British Columbia Mich.; Stephen T. Johnston, University of Victoria, Victoria, Phil J.A. McCausland, University of Michigan, Ann Arbor, Seismology Tectonics; Structural Geology; Geophysics/Tectonophysics/ Geophysics Division GSA Structural Geology and Tectonics Division; GSA T86. POSTER and innovative methods at all scales of observation. ORAL and active mountain belts from around the globe, using traditional Natural Resources Canada, Vancouver, British Columbia A. Harms, Amherst College, Amherst, Mass.; Carol Evenchick, James W. Sears, University of Montana, Missoula, Mont.; Tekla Seismology Tectonics; Structural Geology; Geophysics/Tectonophysics/ Association of Canada GSA Structural Geology and Tectonics Division; Geological T85. 2 We encourage papers that explore the linkage between fore Recent discoveries regarding the evolution of the Himalayas Ribbon continents, long assemblages of rifted continental frag An investigation into the tectonic evolution of ancient and 8
Convergent Systems BeltsThrust and Plateaus: The Anatomy of Recent Advances in Himalayan Geology and Role andin Rifting Orogenesis Ribbon Continents: Their Origin, Development, 50-Year Mark the Dynamic Career of Raymond A. Price at the Tectonic Evolution of Orogenic Belts: Celebrating Whence the Mountains? New Developments in the First Announcement • Denver2004 Annual Meeting • November 7–10 - - - - Wash.; Cristiano Collettini, Universitá di Perugia, Perugia, ItalyKingdom; Darrel S. Cowan, University of Washington, Seattle, Robert E. Holdsworth, University of Durham, Durham, United Structural Geology; Tectonics; Petrology, Metamorphic Geophysics Division GSA Structural Geology and Tectonics Division; GSA T90. POSTER the surrounding margins and continental terranes. ORAL and least understood regions of Earth: the Arctic oceanic basin and N.Mex. Jeffrey M. Amato, New Mexico State University, Las Cruces, Jaime Toro, West Virginia University, Morgantown, W.Va.; Coastal Science Tectonics; Geophysics/Tectonophysics/Seismology; Marine/ GSA Structural Geology and Tectonics Division T89. neotectonics of the region. ORAL and POSTER plans to provide a formal discussion on problems related to ent portions of the eastern Mediterranean region. This session and earthquake potential of major tectonic features of differ Emre, MTA, Ankara, Turkey Eric Sandvol, University of Missouri, Columbia, Mo.; Omer Ibrahim Çemen, Oklahoma State University, Stillwater, Okla.; Paleoseismology; Tectonics Geophysics/Tectonophysics/Seismology; Neotectonics/ Geophysics Division GSA Structural Geology and Tectonics Division; GSA T92. kinematics. ORAL and POSTER netism and rock magnetic studies in understanding shear zone perspective the applications and caveats of applied paleomag The goal of this session is to demonstrate from a geophysical from applied paleomagnetic and rock magnetic investigations. Albuquerque, N.Mex. N.Mex.; Mike Petronis, University of New Mexico, Tim F. Wawrzyniec, University of New Mexico, Albuquerque, Geology Geophysics/Tectonophysics/Seismology; Tectonics; Structural Tectonics Division GSA Geophysics Division; GSA Structural Geology and T91. angle normal faults and faulting. ORAL and POSTER present observational evidence and theoretical insights on low- mentalists, seismologists, geodynamicists, and others can This session highlights the tectonic evolution of one of the Different research groups have been studying neotectonics Integrated studies of shear-zone processes benefit greatly An interdisciplinary session where field geologists, experi
Mechanisms Studies, Fault Rocks, Mechanics, and Weakening Low-angle Normal Faults and Faulting: Field Margins Tectonic Evolution of the Arctic Basin and its Eastern Mediterranean Region Neotectonics and Earthquake Potential of the of Shear Zone Kinematics Paleomagnetism and Rock Magnetism Perspective APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY - - - GSA GSA TODAY, 2004 APRIL/MAY First Announcement • Denver2004 Annual Meeting • November 7–10
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First Announcement • Denver2004 Annual Meeting • November 7–10 APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY dress geoscience problems. POSTER areas where information technology developments can ad data and computational resource integration efforts. Explore community, in particular from those associated with distributed Charles Meertens, UNAVCO, Inc., Boulder, Colo. Ramon Arrowsmith, Arizona State University, Tempe, Ariz.; Geoscience Information/Communication Geophysics/Tectonophysics/Seismology; Tectonics; GSA Geophysics Division T94. tions of seismic waves. POSTER morphic fabrics, anisotropic material properties, and observa tonic formation and regional distributions of shear and meta serve as a proxy for intracrustal deformation by combining tec Wis. Calif.; Nikolas Christensen, University of Wisconsin, Madison, David Okaya, University of Southern California, Los Angeles, Geology Geophysics/Tectonophysics/Seismology; Tectonics; Structural Tectonics Division GSA Geophysics Division; GSA Structural Geology and T93. GSA GSA TODAY, 2004 APRIL/MAY Put your knowledge to the test in this competition Put your this knowledge in test to the Like trivia? Like Present results of geoinformatics projects in the geoscience This session explores how crustal seismic anisotropy may during GSA’sduring Geoscience theNight first at Trivia with your peers and friends on 100 more friends your and peers than with For more information
Step (Posters) Geoinformatics and Geological Sciences: The Next Regional Tectonic Deformation (Posters) Crustal Seismic Anisotropy as a Measure of First Announcement • Denver2004 Annual Meeting • November 7–10 GEOSCIENCE TRIVIA NIGHT GEOSCIENCE TRIVIA Would You Find aPygidium? Creature Fossilized What On GSA Annual Meeting in Denver! in Meeting GSA Annual Tuesday, November 9, 2004 geoscience trivia questions. geoscience trivia Get a team together and battle it out battle together and ateam Get [email protected]. e-mail Gary Lewis at Lewis Gary e-mail (Location to be announced.) be to (Location 8–10 p.m.
and team registration, registration, team and - - - Answer: Trilobite - and Greenland. Our focus is mainly on terrestrial evidence, ~30,000 years from the Americas, and also including Antarctica cal, and biological archives of climate change during the past Seltzer, Syracuse University, Syracuse, N.Y. Andrews, University of Colorado, Boulder, Colo.; Geoffrey O. Donald T. Rodbell, Union College, Schenectady, N.Y.; John T. Paleoceanography Quaternary Geology/Geomorphology; Paleoclimatology/ GSA Quaternary Geology and Geomorphology Division T96. mountain belts undergoing postorogenic exhumation. POSTER sponses to climatic and tectonic forcing in active orogens and We seek papers that quantify landscape and lithospheric re driven denudation bedevils determination of tectonic uplift. Nev.; John Gosse, Dalhousie University, Halifax, Nova Scotia N.Mex.; Eric V. McDonald, Desert Research Institute, Reno, Claudia J. Lewis, Los Alamos National Lab, Los Alamos, Geology Quaternary Geology/Geomorphology; Tectonics; Structural Structural Geology and Tectonics GSA Quaternary Geology and Geomorphology Division; GSA T95. We seek papers that review high-resolution physical, chemi Dynamic response of mountainous landscapes to climate- Exhibit with us in 2004—it will be a successful and rewarding experience experience and rewarding be a will successful us in with 2004—it Exhibit services. and products on customers potential and current educating and sales, increasing customers, new developing and attendees with to-face face- meeting community, geoscience the from makers decision key and influential 6,300 than more reach can Exhibitors www.geosociety.org. at site Web our visiting by exhibitors 2004 current our about more out Find information on earth science programs at various institutions. geological gear; publications; laboratory services; and gems, minerals, supplies and fossils; and field instrumentation; scientific in latest the offering The GSA Annual Meeting Exhibit Hall showcases more than 200 organizations Aschool or program to promote? Anew service to unveil? youDo have aproduct to sell? World— Changing a In for everyone! for EXHIBITORS MAKE MAKE EXHIBITORS contact Cindy L. Harig, GSA Exhibits Management, Management, GSA Exhibits Harig, L. Cindy contact
the Americas: Interhemispheric Synchroneity or Not Records Change Climatic from of Late Quaternary Landscape Evolution (Posters) Differentiating Climatic from Tectonic Controls on For more information on becoming an exhibitor, an becoming on information more For (303)914-0695, [email protected]. A A DIFFERENCE - 2
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but we also welcome near-shore marine records that directly This is a review and description of the historic and current record terrestrial events. ORAL and POSTER geomorphic evolution of the Red River to the development and removal of the raft. ORAL T97. Geologic History and Processes of the Colorado River GSA Quaternary Geology and Geomorphology Division T102. Quaternary Paleoenvironments of the Middle East: Proxy Records, Human Prehistory, and Quaternary Geology/Geomorphology; Environmental Regional Cross-Correlation Geoscience; Stratigraphy GSA Archaeological Geology Division; GSA Quaternary Keith A. Howard, U.S. Geological Survey, Menlo Park, Calif.; Geology and Geomorphology Division Cassandra Fenton, Tucson, Ariz. Quaternary Geology/Geomorphology; Archaeological The history of the Southwest’s Colorado River has intrigued Geology; Paleoclimatology/Paleoceanography scientists and the public for over a century. This session will explore Cenozoic geologic history and processes of the river Carlos E. Cordova, Oklahoma State University, Stillwater, Okla.; from the Rockies to Mexico. ORAL and POSTER Caroline Davies, University of Missouri, Kansas City, Mo. This session will bring together Quaternary geoscientists and T98. Evolution of the Great Plains Landscape geoarchaeologists working in Middle Eastern countries to pre- GSA Quaternary Geology and Geomorphology Division sent and discuss paleoenvironmental records, and their appli- cation to issues of climate change chronologies, human prehis- Quaternary Geology/Geomorphology tory, and regional geomorphological evolution. ORAL Joseph A. Mason, University of Wisconsin, Madison, Wis.; James B. Swinehart, School of Natural Resources, Lincoln, Nebr.; T103. Documenting the Geomorphic and Ecosystem J. Elmo Rawling, University of Wisconsin, Platteville, Wis. Evolution of National Park Landscapes Using This session will highlight research on late Cenozoic land- Repeat Photography scape evolution of the Great Plains. Topics will include rates GSA Quaternary Geology and Geomorphology Division; PAPERSFOR CALL and causes of stream incision, drainage network development, National Park Service, Natural Resources Program Center, and the evolution of tablelands, badlands, dunefields, and pla- Geologic Resources Division yas. ORAL and POSTER Quaternary Geology/Geomorphology; Environmental Geoscience; Remote Sensing/Geographic Information System T99. The Midwest from Deglaciation to Settlement Harold S. Pranger, Denver, Colo. GSA Quaternary Geology and Geomorphology Division Repeat photographs often clearly document recent historic Quaternary Geology/Geomorphology; Paleoclimatology/ changes to native and disturbed landscapes. National Parks are Paleoceanography; Limnogeology ideal locations for using repeat photographs to understand nat- Kathy J. Licht, Indiana University–Purdue University ural and anthropogenic changes to geomorphic and ecological Indianapolis, Indianapolis, Ind.; Tom Lowell, University of systems. ORAL and POSTER Cincinnati, Cincinnati, Ohio This interdisciplinary session will explore the landscape im- T104. Unveiling the Hidden Components in pacts of deglaciation, the postglacial transition and Holocene Archaeological Landscapes—The Role of environments from the prairie-woodland boundary to the Geoscience Techniques in Archaeological Site Appalachians. Investigations of lacustrine, loess, fluvial, and Analysis vegetation records are welcome. ORAL GSA Archaeological Geology Division Archaeological Geology; Quaternary Geology/ T100. Glacial Outburst Floods: Causes and Geomorphology; Environmental Geoscience Consequences Cynthia A. Stiles, University of Wisconsin, Madison, Wis. GSA Quaternary Geology and Geomorphology Division A forum for research emphasizing integration of physical Quaternary Geology/Geomorphology and geochemical techniques used in the geosciences field with Amir Mokhtari Fard, Stockholm University, Stockholm, Sweden archaeological studies to gain a better understanding of the in- This session would consider the less-explored causes and teractive role humans have had with their environment. ORAL consequences of sudden and catastrophic events of release of and POSTER large volumes of melt water from a glacier or glacier-dammed lake. ORAL T105. Archaeological Geology of Stratigraphically Complex Localities T101. The Red River Raft of Louisiana GSA Archaeological Geology Division GSA Quaternary Geology and Geomorphology Division Archaeological Geology; Quaternary Geology/ Quaternary Geology/Geomorphology; Engineering Geology; Geomorphology; Sediments, Clastic Hydrogeology E.A. Bettis III, University of Iowa, Iowa City, Iowa Nalini Torres, U.S. Army Corps of Engineers, Vicksburg, Stratigraphically complex localities contain some of the most Miss.; Danny W. Harrelson, U.S. Army Engineer Research and complete and important archaeological records on Earth. This Development Center, Vicksburg, Miss. session addresses the interpretation of the complex array of
30 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 31 CALL FOR PAPERS Lexington, Ky. Madison, Wis.; John Kiefer, Kentucky Geological Survey, Thomas J. Evans, University of Wisconsin—Extension, Information/Communication Public Policy; Environmental Geoscience; Geoscience Policy Committee GSA Geology and Society Division; GSA Geology and Public T109. modeling are all invited. ORAL and POSTER graphic analysis, dating, geographic information system, and Methodological and field-based papers using mapping, strati for management and conservation of landscape resources. morphology, human activity and landscape, and implications United Kingdom Jasper Knight, Loughborough University, Loughborough, Geoscience Education Environmental Geoscience; Archaeological Geology; Society Division; GSA Geology and Public Policy Committee Geology and Geomorphology Division; GSA Geology and GSA Archaeological Geology Division; GSA Quaternary T108. uate and undergraduate levels. ORAL challenges of developing interdisciplinary curricula at the grad on overcoming the particular philosophical and bureaucratic tives on the “ideal” training for archaeological geologists and Jennifer R. Smith, Washington University, St. Louis, Mo. Geology/Geomorphology Archaeological Geology; Geoscience Education; Quaternary Education Division GSA Archaeological Geology Division; GSA Geoscience T107. context of these finds. ORAL recent research by expedition geologists on the geological fossil hominins in the world. This session will bring together Wynn, University of Oregon, Eugene, Ore. Jay Quade, University of Arizona, Tucson, Ariz.; Jonathon Archaeological Geology; Stratigraphy; Paleontology/PaleobotanyGeology Division; GSA Limnogeology Division GSA Archaeological Geology Division; GSA Sedimentary T106. that interact to form these records. ORAL sedimentological, pedological, biological, and human factors 3 This session explores relationships between geology, geo Educators and geoscience professionals share their perspec Basin deposits in the Ethiopian rift are the richest source of 2
Challenges in Communication Geology, Decisionmakers, and the Public: Present Landscapes Investigating, Conserving, and Managing Past and Georesources: Integrated Approaches to Geoarchaeology, Geoconservation, and Archaeological Geology: Progress and Prospects Toward Effective Interdisciplinary Education in Ethiopian Basins Rift Geological Context of Early Humans from First Announcement • Denver2004 Annual Meeting • November 7–10 - - - - Linda R. Musser, Pennsylvania State University, University Geoscience Information/Communication; Geoscience Education Geoscience Information Society T111. egy, and management. ORAL larly on knowledge about and experiences with policy, strat implementation of emerging information technologies, particu community regarding barriers and enablers to adoption and Soumava Adhya, University at Albany, SUNY, Albany, N.Y. Geoscience Education Geoscience Information/Communication; Public Policy; T110. invited and volunteered presentations will be included. ORAL successful and unsuccessful communication experiences. Both fective communication. This session will focus on examples of reational geology, geoecology, and more. ORAL natural-hazard mitigation, hydrogeology, interpretive and rec ontology, cave and karst geology, engineering geology and ogy conducted on the National Forests. Topics include pale Warinner, USDA Forest Service, Arlington, Va. H. Rorick, USDA Forest Service, Sandy, Ore.; Jim Gauthier- Joe T. Gurrieri, USDA Forest Service, Butte, Mont.; Andrew Geoscience; Geoscience Education Geoscience Information/Communication; Environmental Program USDA Forest Service, Minerals and Geology Management T113. lated to Earth’s history. ORAL and POSTER illustrate community involvement and educational activities re projects, demonstrate analytical and visualization tools, and geoinformatics community on database and data networking Snyder, National Science Foundation, Arlington, Va. Cinzia Cervato, Iowa State University, Ames, Iowa; Walter S. Geoscience Education Geoscience Information/Communication; Stratigraphy; CHRONOS Geoscience Information Society; Paleontological Society; T112. What changes still need to be made? ORAL and POSTER tools and processes changed to meet these new demands? brarians provide must also adapt. How well have traditional Park, Pa. This session focuses on the experiences of the geosciences The engagement of geology in public policy relies upon ef This session will explore some of the many aspects of geol Talks and posters will present results from the efforts of the As geoscience becomes more global in scope, the tools li
Global Context Geoscience Information and Librarianship in a Issues Geosciences: Policy, Strategy, and Management Information Technology Initiatives in the Education, and Research Geology in the National Forests—Stewardship, Revolution Outreach, Education, and the Geoinformatics Geologic Time and CHRONOS: Databases, Tools, APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY ------GSA GSA TODAY, 2004 APRIL/MAY First Announcement • Denver2004 Annual Meeting • November 7–10
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First Announcement • Denver2004 Annual Meeting • November 7–10 APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY Communication Geoscience Education; Geoscience Information/ Geoscience Teachers GSA Geoscience Education Division; National Association of T117. POSTER parks, monuments, open spaces, and public lands. ORAL and for effective informal science education about the geology of plays, publications, signs, Web sites, virtual and real field trips) Development and Mines, Sudbury, Ontario Ky.; Monica Gaiswinkler Easton, Ministry of Northern Carol Ruthven, Association of Earth Science Editors, Lexington, Malinowski, Bureau of Land Management, Lakewood, Colo.; Mathis, National Park Service, Grand Canyon, Ariz.; Marion Jim Wood, National Park Service, Denver, Colo.; Allyson Communication; Environmental Geoscience Geoscience Education; Geoscience Information/ Editors Bureau of Land Management; Association of Earth Science GSA Geoscience Education Division; National Park Service; T116. volunteer and paid positions. ORAL partnerships and access to research, programs, projects, and universities, and companies. Examine and discuss existing national parks for professors, students, retirees, organizations, Marguerite Toscano Outreach, Boulder, Colo.; Ann Beenbow, Alexandria, Va.; Judy Geniac, Denver, Colo.; Gary Lewis, GSA Education and Geoscience Education Public Policy; Geoscience Information/Communication; Geological Institute; Association for Women Geoscientists National Park Service; Geological Society of America; American T115. and Historic Sites. ORAL source management in National Parks, Monuments, Seashores, geologic mapping, paleontology, shoreline geology, and re National Parks. Presentations are invited on geologic research, Monument, Florissant, Colo. Lakewood, Colo.; Jeff Mow, Florissant Fossil Beds National Service, Denver, Colo.; Greg McDonald, National Park Service, Service, Denver, Colo.; Rebecca Beavers, National Park Division, Lakewood, Colo.; Tim Connors, National Park Bruce A. Heise, National Park Service, Geologic Resources Paleobotany; Marine/Coastal Science Geoscience Information/Communication; Paleontology/ National Park Service T114. GSA GSA TODAY, 2004 APRIL/MAY This session will explore programs and products (e.g., dis Discover the growing number of geoscience opportunities in This session will address the role of geoscience in the
Page, Web, and Beyond National Parks”: Tales from the Classroom, Field, Innovative Approaches to Teaching “Geology of Monuments, Open Spaces, and Public Lands through Informal Geoscience Education in Parks, Geology for the Masses: Engaging the Public Service The Keys to Opportunities with the National Park Mapping, and Resource Management Geology in the National Parks: Research, First Announcement • Denver2004 Annual Meeting • November 7–10
- - policymakers. How can we do this? ORAL communicate this effectively in schools and for the public and central to a sustainable future. We have a special obligation to McLelland, GSA Education and Outreach, Boulder, Colo. Paul H. Reitan, SUNY at Buffalo, Buffalo, N.Y.; Christine V. Geoscience Education; Environmental Geoscience; Public PolicyCommittee Critical Issues Caucus, GSA Geology and Public Policy T118. ORAL strategies for successfully educating students on park geology. exercises, written and electronic resources, techniques, and using examples from National Parks to share their expertise, Reese, Edinboro University of Pennsylvania, Edinboro, Pa. J. Ormand, Wittenberg University, Springfield, Ohio; Joseph F. Robert J. Lillie, Oregon State University, Corvallis, Ore.; Carol are encouraged to submit abstracts. POSTER pation should be dominant. Undergraduate and K–12 students various geological and environmental aspects. Student partici ented investigations. Topics may include a wide spectrum of topics involving field, computer-assisted, and laboratory-ori Nazrul I. Khandaker, York College of CUNY, New York, N.Y. Geoscience Education GSA Geoscience Education Division T121. cluding the challenges and rewards. POSTER should concentrate on the process of doing such research in ies both within and beyond the earth sciences. Presentations dergraduates that straddles traditional disciplinary boundar Fryer, Ohio Wesleyan University, Delaware, Ohio Edward C. Hansen, Hope College, Holland, Mich.; Karen H. Geoscience Education Council on Undergraduate Research—Geosciences Division T120. area of geology. POSTER Charles Mankin, Oklahoma Geological Survey, Norman, Okla. Donald W. Neal, East Carolina University, Greenville, N.C.; Environmental Geoscience Sigma Gamma Epsilon T119. Public understanding about the role of earth systems is This session will bring together those who teach geology by This session invites posters on geological/environmental This session highlights examples of research involving un All students are welcome to present their research in any
Policymakers? Effectively Educate Students, the Public, and The Science of Sustainability: How Can We Most Enrichment (Posters) Research: Critical Tools for Background Involvement of Undergraduates in Geological Research in the Earth Sciences (Posters) Integrative Interdisciplinary Undergraduate Sigma Gamma Epsilon Student Research (Posters) -
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- 3 - CALL FOR PAPERS FOR CALL CALL FOR PAPERS standing of geological relationships. POSTER cessible and how their use may facilitate the deeper under specifically how to make these interactive data sets more ac Green, Ky. Andrew H. Wulff, Western Kentucky University, Bowling Geoscience Education; Geoscience Information/Communication T125. ing students’ learning. POSTER teaching practice and potential use of field research to enhanc ing of geoscience. Contributions can document both successful and experiences can be used to enhance students’ understand Barbara Tewksbury, Hamilton College, Clinton, N.Y. Cathryn A. Manduca, Carleton College, Northfield, Minn.; David W. Mogk, Montana State University, Bozeman, Mont.; Geoscience Education Division National Association of Geoscience Teachers; GSA Education T124. index.html). ORAL and POSTER //dlesecommunity.carleton.edu/NAGTWorkshops/structure04/ shop, Teaching Structural Geology in the 21st Century (http: This session will also present outcomes from the 2004 work ing structural geology in the classroom, laboratory, and field. Massachusetts, Amherst, Mass. University, Providence, R.I.; Michael Williams, University of Burger, Smith College, Northampton, Mass.; Jan Tullis, Brown Barbara Tewksbury, Hamilton College, Clinton, N.Y.; Robert Geoscience Education; Structural Geology Association of Geoscience Teachers; On the Cutting Edge GSA Structural Geology and Tectonics Division; National T123. students, or simply through excellent mentoring. ORAL methods, access to equipment, interaction with more advanced process, whether through innovative inquiry-based teaching (K–12 through graduate) have been engaged in the research Murray, University of Rhode Island, Kingston, R.I. Eichelberger, University of Alaska, Fairbanks, Alaska; Daniel P.Eric J. Steig, University of Washington, Seattle, Wash.; John Geoscience Education Quaternary Geology/Geomorphology; Petrology, Igneous; Geology and Geomorphology Division National Association of Geoscience Teachers; GSA Quaternary T122. 3 This session will focus on the use of digital geological maps; Presentations will demonstrate ways that field observations We invite abstracts that showcase effective methods of teach This session will explore ways in which students at any level 4
(Posters) Understanding of Earth Science Relationships Using Digital Geological Maps to Build Deeper Discussion (Posters) to Teach Geoscience: An Illustrated Community Using Field Observations and Field Experiences Teaching Geology Structural in the 21st Century Honor of John B. Reid Jr. Undergraduate Teaching: A Special Session in Inspiring First-rate Research through First Announcement • Denver2004 Annual Meeting • November 7–10 ------Mo.; Ann Molineux, University of Texas, Austin, TexasSarah D. Zellers, Central Missouri State University, Warrensburg, Geoscience Education Geoscience Teachers GSA Geoscience Education Division; National Association of T127. studies across the geoscience curriculum. ORAL and POSTER and human health to share instructional practices and case involved in development of course materials linking geology Jill K. Singer, SUNY—College at Buffalo, Buffalo, N.Y. H. Catherine W. Skinner, Yale University, New Haven, Conn.;Jean M. Bahr, University of Wisconsin, Madison, Wis.; Geoscience Education Education Division National Association of Geoscience Teachers; GSA Geoscience T126. their programs. ORAL affiliations with colleges/organizations that lend legitimacy to aspects of their courses that make them unique and discuss geology/geoscience courses. Presenters will highlight those Steve Kluge, Fox Lane High School, Bedford, N.Y. Geoscience Education; Geoscience Information/Communication Geoscience Teachers GSA Geoscience Education Division; National Association of T129. think outside their nonscience disciplines. ORAL troducing students to the sciences and for encouraging them to programs integrating science and math for the purpose of in University, Highland Heights, Ky. Heights, Ky.; Denice N. Robertson, Northern Kentucky John D. Rockaway, Northern Kentucky University, Highland Engineering Geology Geoscience Education; Environmental Geoscience; Division GSA Engineering Geology Division; GSA Geoscience Education T128. complement earth science education. ORAL and POSTER design utilizing collections, data, and scientific expertise to tunities. This session will showcase outreach and curriculum scientists, data and collections to enhance educational oppor Museums, state and national surveys, and departments have This session is designed to provide an opportunity for those Session features presentations by K–12 teachers of advanced Presentations discussing the incorporation of geoscience into
Museums and Surveys STEMS: Science Teaching Enhanced with the Curriculum Teaching Geology and Human Health: Expanding Geoscience Courses at the K–12 Level Innovative and Unique Advanced Geology/ Integrated Science and Math Integration of Geoscience into Programs of APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY - - GSA GSA TODAY, 2004 APRIL/MAY First Announcement • Denver2004 Annual Meeting • November 7–10
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First Announcement • Denver2004 Annual Meeting • November 7–10 APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY theory and effectiveness of these methods. sessionORAL andfeatures POSTER quantitative and qualitativephysical research locality into theand local culture, events,geoscience, and problems. enhancing This relevance and context by building on the Riggs, San Diego State University, San Diego, Calif. Steven Semken, Arizona State University, Tempe, Ariz.; Eric Communication; Public Policy Geoscience Education; Geoscience Information/ Education Division National Association of Geoscience Teachers; GSA Geoscience T133. ence literacy across the nation. POSTER Curriculum has been developed and implemented to build sci demic levels with support of the National Science Foundation. critical steps for improving earth science education in all aca Michael Smith, American Geological Institute, Alexandria, Va. Roderic Brame, American Geological Institute, Alexandria, Va.; Geoscience Education Institute, National Science Foundation GSA Geoscience Education Division; American Geological T132. adults about earth science and related topics—learnreport to a classroom?how! ORALOnline instructors can successfully teach field or laboratory experiences for college students who do not Boulder County Campus, Longmont, Colo. Suzanne G. Traub-Metlay, Front Range Community College, System Communication; Remote Sensing/Geographic Information Geoscience Education; Geoscience Information/ GSA Geoscience Education Division T131. explored from the perspectives of those different groups.partners ORAL in authentic collaborative research. The topicK–12 willeducators be and other community groups participating as Mayo, California State University, Los Angeles,William Slattery,Los Angeles, Wright Calif. State University, Dayton, Ohio;Geoscience Dave Education Geoscience Teachers GSA Geoscience Education Division; National Association of T130. GSA GSA TODAY, 2004 APRIL/MAY Situated teaching methods are thought to improve learning in Geoscience educators and curriculum developers are taking How do online geoscience educators provide meaningful This session will highlight the efforts of scientific researchers,
Problem-Based, Place-Based Place-Based Problem-Based, Learning in Geoscience: Field-Based, Case-Based, Current Research on Situated Teaching and Science Education Foundation–Funded Projects for Improving Earth Why Earth Science NationalCurriculum: Science Instruction for Nontraditional Students Colleges: Hybrid or Strictly Distance Learning Online Geoscience Education at Two-Year Endeavor Community Groups Together in the Scientific Scientific Researchers, K–12 Schools, and Other Authentic Research Collaborations: Bringing First Announcement • Denver2004 Annual Meeting • November 7–10
- - Perkins, University of North Dakota, Grand Forks, N.Dak. Elizabeth M. King, Illinois State University, Normal, Ill.; Dexter Geoscience Education Geoscience Teachers GSA Geoscience Education Division; National Association of T134. ORAL mentation and assessment of SRT in the geoscience classroom. learning in the classroom. This session will explore the imple method for overcoming barriers to engagement and effective Park, Pa. Peter J. Heaney, Pennsylvania State University, University Lisa Greer, Washington and Lee University, Lexington, Va.; Geoscience Education Education Division National Association of Geoscience Teachers; GSA Geoscience T136. ORAL disseminate the practices IDIG educators have found effective. ery of geoscience education. The session goal is to share and outcomes of their implemented plans for improving the deliv Phillip R. Romig Jr., Colorado School of Mines, Golden, Colo. Marilyn J. Suiter, National Science Foundation, Arlington, Va.; Geoscience Education; Public Policy Education Division National Association of Geoscience Teachers; GSA Geoscience T135. ORAL and POSTER will provide a chance to share innovations in teaching style. ture format used by most college science teachers. This session there are many excellent alternatives to the standard lab-lec Electronic student response technology has been cited as a In this session, IDIG participants/associates will present the During the past decade, it has become increasingly clear that
Lab-Lecture Format in Lab-Lecture the College Classroom We Can Do Better: Alternatives to the Same Old and Learning Tool? Geoscience Classroom: Is it a Valuable Teaching Electronic Student Response Technology in the Stout (IDIG): A Session Celebrating Dorothy LaLonde Improving in Geoscience Delivery Education
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5 - - CALL FOR PAPERS FOR CALL CALL FOR PAPERS Foundation are on the forefront of inclusion and accessibility Rock, Ark. Wendi Williams, University of Arkansas at Little Rock, Little Roderic Brame, American Geological Institute, Alexandria, Va.; Geoscience Education Foundation; National Aeronautics and Space Administration GSA Geoscience Education Division; National Science T139. ORAL and POSTER focuses on the “geoteaching” and the processes that entail. abled people are taking courses in the sciences. This session try, and procedures. Today, more older, nontraditional and dis Gibb, University of Nebraska, Lincoln, Nebr. Mark Howe, Arizona State University, Tempe, Ariz.; Connie Communication; History of Geology Geoscience Education; Geoscience Information/ GSA Geoscience Education Division T138. groups. ORAL and POSTER seek to attract and retain members of these underrepresented ences and explore new and existing ideas and programs that minorities, women, and persons with disabilities in the geosci Cassandra Runyon, College of Charleston, Charleston, S.C. William Pennington, Oregon State University, Corvallis, Ore.; Marc Carrasco, University of California, Berkeley, Calif.; John Maya Elrick, University of New Mexico, Albuquerque, N.Mex.; Communication Geoscience Education; Public Policy; Geoscience Information/ Minorities and Women in the Geosciences GSA Geoscience Education Division; GSA Committee on T137. 3 Geoscience educators with support of the National Science The geological sciences are heavy in math, physics, chemis This session will address the current issues confronting opportunities of geosciences. the areas networking academic and applied all across valuable provides 44), (see page Discussions Roundtable Careers the with together program, this year, Each interviews. onsite of days three which Service, matches employers with job seekers during 6 GSA EMPLOYMENT SERVICE
For more information, see www.geosociety.org/ see For more information,
Disabilities) to Participate in the Geosciences Encourage StudentsALL (Especially Students with Geoscience Education Strategies and Methods that Technology andMethods Hands-On Students—The Aspects of Change to Incorporate Geology to Nontraditional and Disabled New Methods and Technologies in Teaching Innovative Solutions in the Geosciences: Continuing Issues and Minorities, Women, and Persons with Disabilities First Announcement • Denver2004 Annual Meeting • November 7–10 GSA will again offer its Employment Interview Interview Employment its offer again will GSA e-mail [email protected]. e-mail profdev/empsvc1.htm, or profdev/empsvc1.htm, - - - Research (UCAR), Boulder, Colo.; Rajul E. Pandya, UCAR, Mary R. Marlino, University Corporation for Atmospheric Communication; Public Policy Geoscience Education; Geoscience Information/ Information Society; GSA Geoscience Education Division National Association of Geoscience Teachers; Geoscience T141. will be discussed. ORAL that encourage active learning from students with disabilities of ALL students is solicited. Available technologies/equipment Dayton, Ohio Dayton, Ohio; Heidi J. Turner, CLASS—Wright State University, Terry L. Oroszi, Biological Sciences, Wright State University, Geoscience Education T140. munity. ORAL and the impact it is having on the geoscience education com in science. This session will highlight advances in accessibility Earth. POSTER were the driving mechanism in the early evolution of life on followed by rapid radiation of surviving organisms. Thus, they treme oceanic and climate changes, causing mass extinctions Colo.; Christian Koeberl, University of Vienna, Vienna, Austria Jared R. Morrow, University of Northern Colorado, Greeley, Charles A. Sandberg, U.S. Geological Survey, Denver, Colo.; Paleoclimatology/Paleoceanography Planetary Geology; Paleontology/Paleobotany; GSA Planetary Geology Division; Paleontological Society T143 and POSTER research and education, and/or departmental planning. ORAL taining, and advising students, retaining faculty, integrating in undergraduate and/or graduate curriculum; recruiting, re activities or discussions of critical issues facing departments Arizona, Tucson, Ariz. Northfield, Minn.; Randall M. Richardson, University of Williamsburg, Va.; Cathryn A. Manduca, Carleton College, R. Heather Macdonald, College of William and Mary, Geoscience Education Education Division National Association of Geoscience Teachers; GSA Geoscience T142. strategies for moving the library forward. ORAL and POSTER (DLESE), focusing on early successes, lessons learned, and mote diversity in the Digital Library for Earth System Education Boulder, Colo. A selection of science activities designed for the participation Pre-Mesozoic comet and meteorite impacts produced ex This session seeks examples of successful departmental The session will explore current and ongoing efforts to pro
Goals, Goals, Lessons Learned, and Future Directions Building a Digital Library that Supports Diversity: Learning for StudentsAll Beyond Video Games—Promoting Active Change, and Organic Evolution (Posters) Geochemistry, Magnetic Polarity, Climate Pre-Mesozoic Impacts: Their Effect on Ocean Opportunities, Successes, and Challenges Building Strong Geoscience Departments: APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY - - - - GSA GSA TODAY, 2004 APRIL/MAY First Announcement • Denver2004 Annual Meeting • November 7–10
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First Announcement • Denver2004 Annual Meeting • November 7–10 APRIL/MAY 2004, GSA GSA TODAY2004, APRIL/MAY sions. The available choices are: inclusion in the general discipline ses doesn’t, please submit your abstract for under one of the topical sessions. If it Determine if your paper would fit neatly GSA GSA TODAY, 2004 APRIL/MAY Volcanology Volcanology Tectonics Geology Structural Stratigraphy Clastic Sediments, Carbonates Sediments, Information Sensing/Geographic Remote Geology/Geomorphology Quaternary Public Policy Geology Precambrian Geology Planetary Metamorphic Petrology, Igneous Petrology, Experimental Petrology, Paleontology/Paleobotany Paleoclimatology/Paleoceanography Neotectonics/Paleoseismology Mineralogy/Crystallography Science Marine/Coastal Limnogeology Hydrogeology of Geology History Geoscience Information/Communication Geoscience Education Geophysics/Tectonophysics/Seismology Geomicrobiology Other Geochemistry, Organic Geochemistry, Aqueous Geochemistry, Geoscience Environmental Geology Engineering Geology Economic Coal Geology Geology Archaeological tables, Greek letters, and equations. complex abstracts that contain subscripts, superscripts, italic and boldfaceabstract type,submission deadline date. The system supports the submission andof revise it as necessary from any Internet connection up until stractthe publishedidentification number and password, and you can access your Youabstract and your coauthors will be provided (by e-mail) with a record of the ab finished, you can resume making a submission when you log back on. follow the steps given. If you lose your connection before Internet you are From the home page of www.geosociety.org, click on “Submit an Abstract” and Carlson, (303) 357-1061, [email protected]. charged. If you cannot submit your abstract electronically, contact An Nancyabstract submission fee of $18 for all students and $30 for Pleaseall others willuse be the online abstract form found on the GSA Web site, www.geosociety.org. System System SCIENTIFIC CATEGORIES SCIENTIFIC First Announcement • Denver2004 Annual Meeting • November 7–10 HOW TO SUBMIT YOUR ABSTRACT YOUR SUBMIT TO HOW
- this limit. abstract system will reject it if it exceeds 2,000 characters or fewer. Please keep the abstract body to Abstract Body to a discipline session. abstract will be transferred automatically is submitted in the incorrect mode, the session description. If a topical abstract submitted Papers for topical sessions are to be submitted in either oral or poster mode. Papers for discipline sessions may be the four presentation hours. at their poster booths for at least two of Web site in September. Speakers must be Guide, which will be posted on the GSA surements will appear in the Speaker mately 8' wide and 4' high. Precise mea freestanding display board approxi senter is provided with one horizontal, Poster Mode utes, plus three minutes for discussion. length of an oral presentation is 12 min before a seated audience. The normal Oral Mode. organizers is final. abstracts. The decision of the program particular session with other compatible they feel your paper would fit well in a override your original mode selection if your preferred mode. However, they will nizers will do their best to fit you into ence). tion: oral, poster, or either (no prefer Select your preferred mode of presenta Presentation Modes Title Sponsor of the 2004 GSA Annual Meeting. Please Note: only This is a verbal presentation . Each poster session pre in the mode noted in the The program orga The online ------nonrefundable submission fee is $18 for to submit payment will appear. The Once the abstract is in place, a window Abstracts Fee typing). before copying, after pasting, or while gether when displayed (you can do this between paragraphs or they will run to For typing and pasting, add an extra line for you.) should see. (We won’t check or edit it that it is something the whole world sor. Then read it again and make sure and title using your own word proces Check the spelling of the abstract’s body by roughly 2,000 characters alone. no more space than would be occupied the body of the abstract should take up lowed in your abstract. Taken together, might reduce the number of words al stract, but understand that the table You can include a table with your ab Abstracts Deadline: program chairs. Council approved the JTPC technical ticipating in the technical program. GSA Associated Societies and Divisions par cludes representatives from those GSA will be notified in August. The JTPC in the final session schedule. All authors (JTPC) selects abstracts and determines The Joint Technical Program Committee Early August JTPC to Finalize Program in • • Volunteered Abstract You May Present Only One students; $30 for all others.
sessions. tions to keynote symposia or topical nor does it include, This limitation does not apply to, rejection of all abstracts. speaker-presenter will result in heard. eryone an equal opportunity to be scheduling conflicts and gives ev sessions. This helps avoid speaker- senter in topical and/or discipline abstract as speaker or poster pre Please submit only one Multiple submissions as invited July 13 volunteered contribu - - 3 - - -
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- CALL FOR PAPERS FOR CALL DENVER 2004 FIELD TRIPS
Come experience the Rockies! The 2004 GSA Annual Science to the Wynkoop Brewery, which was cofounded by Meeting in Denver will provide abundant opportunities geologist John Hickenlooper, the current mayor of Denver. for field trips viewing the geology of the southern Rocky Mountains. A full array of trips will be offered, ranging from Most trips will start and end in Denver. Air travel plans that multi-day excursions delving into the tectonic development include a Saturday night stay over can substantially offset of northern New Mexico to one-day trips visiting Dinosaur field trip costs. The following list is tentative and subject to Ridge. These trips will minimize the impact of possible change. Further details will be given when registration for Rocky Mountain snowstorms by emphasizing one-day trips the meeting begins in June. in the eastern slope of the Rockies and multi-day trips to southern locations with warmer and dryer weather. Some The field trip co-chairs for the Denver 2004 meeting are trips will be unaffected by inclement weather: underground, Eric Erslev, Department of Geosciences at Colorado State the cool temperatures of the Henderson Mine are constant University, and Eric Nelson, Department of Geology and regardless of the weather and the heat from underground Geological Engineering at Colorado School of Mines. For coal fires can be quite pleasant when combined with a little more information about the trips, please contact the field Rocky Mountain powder snow. If a blizzard requires that trip leader or Eric Erslev, Department of Geosciences, GSA cancel a field trip, we will return your field trip fee and Colorado State University, Fort Collins, CO 80523, (970) 491- provide information on the abundant in-town opportuni- 5661, fax 970-491-6307, [email protected]. ties for exploration, from the Denver Museum of Nature &
PREMEETING FIELD TRIPS Structural Implications of Underground Coal Mining in the Mesaverde Group, Somerset Coal Field, Delta and Navajo Sand Sea of Near-Equatorial Pangea: Tropical Gunnison Counties, Colorado Westerlies, Slumps, and Giant Stromatolites Fri. and Sat., Nov. 5–6. Christopher J. Carroll, Colorado Tues.–Sat., Nov. 2–6. David Loope, Dept. of Geosciences, Geological Survey, 1313 Sherman St., Room 715, Denver, CO University of Nebraska, Lincoln, NE 68508, (402) 472-2647, fax 80203, (303) 866-3501, fax 303-866-2461, Chris.Carroll@state. 402-472-4917, [email protected]; Len Eisenberg; Erik Waiss. co.us; Greg Hunt; Wendell Koontz; Eric Robeck. Max.: 20. Max.: 15. Cost: $475. Cost: $240. Strike-Slip Tectonics and Thermochronology of A New K-T Boundary in the Denver Basin Northern New Mexico Sat., Nov. 6. Kirk Johnson, Denver Museum of Nature & Thurs.–Sat., Nov. 4–6. Eric Erslev, Dept. of Geosciences, Science, 2001 Colorado Blvd., Denver, CO 80205-5732, (303) Colorado State University, Fort Collins, CO 80523, (970) 370-6448, fax 303-331-6492, [email protected]; Richard 491-5661, fax 970-491-6307, [email protected]; Barclay. Max.: 45. Cost: $105. Steven Cather; Seth Fankhauser; Matt Heizler; Rob Sanders. Max.: 40. Cost: $255. Begins and ends in Denver or Santa Fe, Buried Paleo-Indian Landscapes and Sites in the High New Mexico. Plains of Northwestern Kansas and Eastern Colorado Sat., Nov. 6. Cosponsored by the GSA Archaeological Geology Geology of the Silvercliff–Rosita Hills Mining District Division. Rolfe D. Mandel, Kansas Geological Survey, 1930 and Spanish Peaks Area Constant Avenue, Lawrence, KS 66047-3726, (785) 864-2171, Fri. and Sat., Nov. 5–6. Cosponsored by GSA Sedimentary fax 785-864-5317, [email protected]; Jack Hofman; Steve Geology Division. Paul R. Krutak, P. Krutak Geoservices Holen. Max.: 36. Cost: $85. International, P.O. Box 369, 2118 Main Street, Rye, CO 81069-0369, (719) 489-2282 (phone and fax), Colorado Front Range—Anatomy of a Laramide Uplift [email protected]; John R. Barwin; Marty Horn. Sat., Nov. 6. Karl Kellogg, U.S. Geological Survey, P.O. Box Max.: 36. Cost: $185. 25046, Denver Federal Center, Denver, CO 80225, (303) 236- 1305, fax 303-236-0214, [email protected]; Bruce Bryant; Jack Hyperpycnal Wave-Modified Turbidites of the Reed. Max.: 36. Cost: $100. Pennsylvanian Minturn Formation, North-Central Colorado. Continental Accretion—Colorado Style: Proterozoic Fri. and Sat., Nov. 5–6. Paul M. Myrow, Dept. of Geology, Island Arcs and Back Arcs of the Central Front Range Colorado College, Colorado Springs, CO 80903, (719) 389- Sat., Nov. 6. Lisa R. Lytle, Dept. of Geology and Geological 6789, fax 719-389-6910, [email protected]; Karen Engineering, Colorado School of Mines, Golden, CO 80401- Houck; Charles Kluth; Michael Lamb; Claire Lukens; Jeff 1887, (303) 478-9427, fax 303-273-3859, [email protected]; Parsons. Max.: 36. Cost: $155. Thomas R. Fisher. Max.: 36. Cost: $90.
38 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 39 Eco-Geo-Hike along the Dakota Hogback North of POSTMEETING FIELD TRIPS Boulder, Colorado Sat., Nov. 6. Peter Birkeland, Dept. Geological Sciences Upper Cambrian and Lower Ordovician Stratigraphy of (retired), University of Colorado, Boulder, CO 80309, West Texas and Southern New Mexico [email protected]; Ven Barclay; Edwin Larson; Ralph Wed.–Sat., Nov. 10–13. John F. Taylor, Geoscience Dept., Shroba. Max.: 20. Cost: $45. Begins and ends in Boulder. Indiana University of Pennsylvania, Indiana, PA 15705, (724) 357-4469, fax 724-357-5700, [email protected]; Raymond L. Geological Reconnaissance of Dinosaur Ridge, Red Ethington; James D. Loch; Paul R. Myrow; Robert L. Ripperdan. Rocks, and Front Range of the Rocky Mountains near Max.: 20. Cost: $325. Begins and ends in El Paso, Texas. Morrison, Colorado Sat., Nov. 6. Norbert E. Cygan, Friends of Dinosaur Ridge, Ancient Depositional Environments Control Modern 16831 W. Alameda Parkway, Morrison, CO 80456, (303) Aquifer Quality: Stratigraphy of Groundwater Resources 697-3466, fax 303-697-8911, [email protected]; T. Caneer; in the Denver Area Harald Drewes and other volunteers from Dinosaur Ridge, Thurs., Nov. 11. Robert G.H. Raynolds, Denver Museum of www.dinoridge.org. Max.: 45. Cost: $90. Also offered as post- Nature & Science, 2001 Colorado Blvd., Denver, CO 80205, meeting trip. (303) 370-6047, fax 303-331-6492, [email protected]. Max.: 22. Cost: $110. Glenwood Springs, Colorado Coal Fire—Observations, Discussion, and Field Data Collection Techniques Cenozoic Geology and Fossils of the Pawnee Buttes Sat., Nov. 6. Glenn B. Stracher, Dept. of Science and Area, Northeast Colorado Mathematics, East Georgia College, Swinsboro, GA 30401; Thurs., Nov. 11. Emmett Evanoff, Dept. of Geological Sciences, (478) 289-2073, fax 478-289-2080, [email protected]; Gary Campus Box 399, University of Colorado, Boulder, CO 80309- Colaizzi; Steve Renner; Janet L. Stracher; Tammy P. Taylor. 0399, (303) 444-2644 (phone and fax), emmettevanoff@ Max.: 45. Cost: $105. earthlink.net. Max.: 36. Cost: $85. Overview of Laramide Structures along the Consequences of Living with Geology: A Model Field Northeastern Flank of the Front Range Trip for the General Public Sat., Nov. 6. Vince Matthews, Colorado Geological Survey, Thurs., Nov. 11. Cosponsored by GSA Engineering Geology 1313 Sherman St., Room 715, Denver, CO 80203, (303) Division, GSA Geoscience Education Division, and American 866-3028, fax 303-866-2461, [email protected]. Institute of Professional Geologists. David M. Abbott Jr., Max.: 38. Cost: $120. Consulting Geologist, 2266 Forest St., Denver, CO 80207, (303) 394-0321, fax 303-394-0543, [email protected]; David C. Noe. Paleoclimate, Paleohydrology, and Paleoecology of the Max.: 40. Cost: $100. Morrison Formation in the Front Range of Colorado Sat., Nov. 6. Stan Dunagan, Dept. of Geology, Geography & Eldorado Canyon: Shorefront Property and Birthplace Physics, University of Tennessee, Martin, TN 38238, (731) 587- of Mountains 7959, fax 731-587-1044, [email protected]; Christine Turner; Thurs., Nov. 11. Lin Murphy, 3625 Catalpa Way, Boulder, Fred Peterson; Tim Demko. Max.: 30. Cost: $105. CO 80304, (303) 447-0656, [email protected]; Alan Lester. Max.: 36. Cost: $90. Paleontology and Volcanic Setting of the Florissant Fossil Beds Geological Reconnaissance of Dinosaur Ridge, Red Sat., Nov. 6. Herb Meyer, National Park Service, Florissant Rocks, and Front Range of the Rocky Mountains near Fossil Beds National Monument, P.O. Box 185, Florissant, CO Morrison, Colorado 80816, (719) 748-3253, fax 719-748-3253, herb_meyer Thurs., Nov. 11. Norbert E. Cygan, Friends of Dinosaur Ridge, @nps.gov; Steven Veatch. Max.: 36. Cost: $125. 16831 W. Alameda Parkway, Morrison, CO 80456, (303) 697-3466, fax 303-697-8911, [email protected]; T. Caneer; Stratigraphy and Paleobiology of Mammoth Sites in the Harald Drewes and other volunteers from Dinosaur Ridge, Denver Area www.dinoridge.org. Max.: 45. Cost: $90. Also offered as pre- Sat., Nov. 6. Russ Graham, Denver Museum of Nature & meeting trip. Science, 2001 Colorado Blvd., Denver, CO 80205, (303) 370- 6047, fax 303-331-6492, [email protected]; Bart Weis; Jim Laramide Horizontal Shortening in the Rockies: Dixon. Max.: 36. Cost: $95. Faulting and Folding in Oblique Backlimb-Tightening Structures of the Northeastern Flank of the Front Range, HALF DAY—DURING THE MEETING Colorado Thurs., Nov. 11. Eric Erslev, Dept. of Geosciences, Colorado Tour of U.S. Geological Survey National Earthquake State University, Fort Collins, CO 80523, (970) 491-6375, fax Information Center, Golden, Colorado 970-491-6307, [email protected]. Max.: 24. Cost: $100. Wed., Nov. 10, 12:30–5 p.m. Peter J. Modreski, U.S. Geological Survey, MS 150, Box 25046, Denver Federal Center, Underground Tour of Henderson Molybdenum Mine Denver, CO 80225-0046, (303) 202-4766, fax 303-202-4767, Thurs., Nov. 11. Eric Nelson, Dept. of Geology and Geological [email protected]; Lynn M. Highland; Pat Schassburger; Engineering, Colorado School of Mines, Golden, CO 80401- Stephen J. Vandas; Lisa Ann Wald; Pamela J. Benfield; 1887, (303) 273-3811, fax 303-273-3859, [email protected]; Waverly J. Person; Jill McCarthy. Max.: 45. Cost: $25. Robert Golden; Jim Shannon. Max.: 15. Cost: $140.
38 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 39 Walking with Dinosaurs along Colorado’s Front Range Hydrogeologic Field Methods Thurs., Nov. 11. Joanna Wright, Dept. of Geography and Sat., Nov. 6. Cosponsored by GSA Hydrogeology Division. Environmental Sciences, University of Colorado, Denver, CO John E. Moore, Consultant, Denver, Colo. Fee: $245. CEU: 0.8. 80217-3363, (303) 556-6007, fax 303-556-6157, jwright@carbon. cudenver.edu. Max.: 36. Cost: $85. Management and Leadership Skills for Academic Administrators in the Geosciences Sat., Nov. 6. Cosponsored by GSA Geoscience Education Division and National Association of Geoscience Teachers. DENVER 2004 SHORT COURSES Lee J. Suttner, Indiana University, Bloomington, Ind.; Sheila M. Moore, Training Concepts, Chattanooga, Tenn. Fee: $265. CEU: 0.8. GSA-SPONSORED SHORT COURSES Practical Geoscience Ethics: Elements and Examples STANDARD REGISTRATION DEADLINE: SEPTEMBER 30 Sat., Nov. 6. Cosponsored by GSA Engineering Geology Registration information and course descriptions will Division and American Institute of Professional Geologists. be published in the June issue of GSA Today. For ad- David M. Abbott Jr., Consulting Geologist, Denver, Colo. ditional information, contact Edna Collis, GSA head- Fee: $250. CEU: 0.8. quarters, [email protected], or see GSA’s Web site, www.geosociety.org. OTHER COURSES AND PANELS Evaporites: A Practical Approach Registration and information can be obtained from the contact Fri. and Sat., Nov. 5–6. Cosponsored by GSA Sedimentary person listed. Geology Division. John Warren, University of Brunei Darussalam. Fee: $365. CEU: 1.6. Sequence Stratigraphy for Graduate Students Fri. and Sat., Nov. 5–6. Free short course for graduate students. Introduction to Geographic Information Systems (GIS), Cosponsored by British Petroleum (BP) and ExxonMobil. Using ArcGIS9 for Geological Applications Instructors: Art Donovan (BP) and Kirt Campion (ExxonMobil). Fri. and Sat., Nov. 5–6. Cosponsored by GSA Geoscience Information and registration: Art Donovan, [email protected], Education Division and Environmental Systems Research or Kirt Campion, [email protected]. Institute. Ann B. Johnson and Dave Fosdek, ESRI, Denver. Fee: $240. CEU: 0.8. Biological Revolutions in the Neoproterozoic and Cambrian Multi-Temporal Stereo Aerial Photography Sat., Nov. 6. Sponsored by Paleontological Society. Organizers: Fri. and Sat., Nov. 5–6. Cosponsored by GSA Engineering Ben Waggoner, Dept. of Biology, University of Central Geology Division and U.S. Army Corps of Engineers. John C. Arkansas, Conway, AR 72035-5003, (501) 450-5037, fax Jens, U.S. Army Corps of Engineers, Alexandria, Va. Fee: $420. 501-450-5914, [email protected]; Jere Lipps, Museum of CEU: 1.6. Paleontology, University of California, Berkeley, CA 94720- 4780, (510) 642-9006, fax 510- 642-1822, jlipps@uclink4. Calibrated Peer Review Training for Faculty and berkeley.edu. Teaching Assistants: Writing Exercises for Large and Small Classes without the Pile of Papers to Grade Sat., Nov. 6. Cosponsored by GSA Geoscience Education Division and National Association of Geoscience Teachers. Elizabeth Heise, University of Texas at Brownsville, Brownsville, Texas; Cinzia Cervato, Iowa State University, Ames, Iowa; Amanda Palmer-Julson, Blinn College, Bryan, Texas. Fee: $340. CEU: 0.8. K–16 PROGRAM Characterization and Toxicity Assessment of Mine- Waste Sites Attention College Faculty, Sat., Nov. 6. Cosponsored by Geochemical Society of America. Sharon Diehl, LaDonna Choate, David Fey, Phil Hageman, K–12 Teachers, Teacher Bruce Smith, Kathy Smith, U.S. Geological Survey, Denver, Colo.; Jim Ranville, Tom Wildeman, Colorado School of Mines, Trainers, and Golden, Colo.; Jim Herron, Abandoned Mined Land Program. Fee: $300. CEU: 0.8. Pre-Service Teachers: Estimating Rates of Groundwater Recharge Look for the K–16 Education Workshops Sat., Nov. 6. Cosponsored by GSA Hydrogeology Division. Rick listing in the June issue of GSA Today. Healy, U.S. Geological Survey, Denver, Colo.; Bridget Scanlon, Questions? Contact Christine McLelland, University of Texas at Austin. Fee: $270. CEU: 0.8. [email protected] or (303) 357-1082, for more information.
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Work fewer hours this year Will work for to earn a free registration! FREE Do you ever feel the only way you can afford to go to a meeting is to panhandle? Now you don’t have to! Become a student volunteer and offset your meeting costs. registration! No upfront meeting registration fee required! FREE registration if you volunteer just 10 hours of your time. FREE Abstracts with Programs volume by volunteering 15 hours. Additionally, volunteers receive a stipend of $25 for each half-day (5 hours) volunteered at the meeting. (Stipends can only be issued to students who have a U.S. government–issued Social Security Number, Green Card, or Student Work Visa.) New this year: optional partial food stipend available. Students: Sign Up to Volunteer and Reap the Rewards
42 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 43 DENVER 2004 REGISTRATION INFORMATION EARLY BIRD REGISTRATION DEADLINE: JULY 13 NOT A GSA MEMBER? STANDARD REGISTRATION DEADLINE: SEPTEMBER 30 You can save a substantial amount on CANCELLATION DEADLINE: OCTOBER 7 your registration fee by becoming a NEW! GSA has changed its pricing structure to include “Early Bird” registration GSA member; it’s almost like joining (June through July 13). Register by July 13—which is also the abstract submission GSA for free! GSA is on a calendar-year deadline—for significant discounts. Registration information will be available in the membership cycle, so join now to reap June issue of GSA Today and on the GSA Web site, www.geosociety.org, in early the benefits of GSA membership for June. Online registration and information regarding Subaru-sponsored grants for the rest of 2004. For further information Colorado-based graduate students and two-year college faculty also will be avail- or to join, go to www.geosociety.org/ able in early June. members/ or contact GSA Sales and Service, [email protected], REGISTRATION FEES 1-888-443-4472, or (303) 357-1000, option 3. Early Bird Standard Late/Onsite (by 7/13) (7/14–9/30) (after 9/30) Professional Member—Full Meeting $275 $295 $375 LODGING Professional Member—1 Day – $190 $200 Denver offers high-quality, affordable Professional Member (70 or older)—Full Meeting $220 $240 $315 hotel rooms for meeting attendees. Professional Member (70 or older)—1 Day – $135 $145 GSA has booked rooms at eight hotels, Professional Nonmember—Full Meeting $350 $375 $465 offering special convention rates rang- Professional Nonmember—1 Day – $215 $225 ing from $105 to $160 per night. The Student Member—Full Meeting $60 $90 $120 co-headquarters hotels are the Denver Marriott City Center and the Hyatt Student Member—1 Day – $60 $60 Regency Denver. Most activities will Student Nonmember—Full Meeting $80 $120 $150 take place at the Colorado Convention Student Nonmember—1 Day – $75 $75 Center and the two headquarters ho- K–12 Professional—Full Meeting $35 $40 $40 tels. Additional housing information Field Trip or Short Course Only – $40 $40 will be included in the June issue of Guest or Spouse $70 $80 $80 GSA Today.
Guests Invited! GSA extends a warm welcome to all spouses, family members, and friends to register for the Guest Program. Registration for the Guest Program begins in June. The guest or spouse registration fee of $80 per person ($70 if you register by July 13) is for non-geologist spouses or family members and friends of professional and/or student registrants to the GSA Annual Meeting. The guest registration fee is required to attend guest activities, gain entrance to the Exhibit Hall, attend seminars and workshops (to be listed in the June issue of GSA Today), and take advantage of refreshments in the Guest Hospitality Suite. Formal tours (also listed in the June issue of GSA Today) will be offered at an additional cost. Fees cover the cost of professional tour guides, round-trip transportation, admission fees, and gratuities. Reservations for all tours will be accepted on a first-come, first-served basis. Since the tour operator requires a final guarantee weeks in advance, most tours have attendance minimums and maximums. Please register early to guarantee your spot. Tours may be canceled if minimum attendance is not met. The guest registration fee will NOT provide access to all technical sessions. However, guests can sign in with the hostess in the Guest Hospitality Suite and get visitor badges that allow them to attend a specific presentation. Make plans now to participate in the GSA Guest Program at the Annual Meeting in Denver. After sightseeing trips, exploring Denver, and browsing in the Exhibit Hall, you’ll appreciate having a quiet place to sit down and have a beverage! Guest Hospitality Suite Hours Sun.–Wed., Nov. 7–10 8 a.m.–5:30 p.m. Look for registration information in the June issue of GSA Today, or register online at www.geosociety.org.
42 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 43 GSA MENTOR PROGRAMS at the GSA Annual Meeting
Seeking Employment? Plan to attend the Careers Roundtable Discussions (formerly the Employment Opportunities in the Geological Sciences Roundtable Discussions). Along with getting a new name, this event has expanded, with mentors offering one-on-one career advice. These mentors hail from a broad range of geoscience-related careers representing academics, ATTENTION industry, and government agencies. If you are seeking employment now, or will be in the future, join this group for networking opportunities and Students job-market perspectives. This FREE come-and-go event is open to everyone. Registration is not Pursuing a required. For more information, contact Karlon Blythe, Hydrogeology [email protected].
Career Path! Careers Roundtable Discussions The new Mann Mentors in Applied Sat., Nov. 6, 1–3 p.m. Hydrogeology Program makes it pos- Ballroom 1 (adjacent to GSA Employment Services) sible for up to 25 students to attend the distinguished Hydrogeology Division Luncheon and Awards Presentation luncheon, without cost to the stu- dents. Eligible students will have the chance to meet some of the nation’s top hydrogeologists and observe the Students: Check Out the Geology in presentations of the coveted O.E. Meinzer Award, the Student Research Government Mentor Program! Grants Awards, and the Distinguished Plan to arrive early for this FREE lunch for undergraduate and graduate stu- Service Award from the membership dents. This popular annual event will feature a select panel of mentors represent- of the GSA Hydrogeology Division. ing various government agencies. Mentors will invite questions, offer advice Eligible students are those who have about preparing for a career, and comment on the prospects for current and indicated their professional interest in future job opportunities with their agencies. hydrology/hydrogeology on their GSA Registration is not required; however, every student registered for the GSA membership applications and who Annual Meeting will receive a ticket to this event along with their badge. Limited register for the GSA Annual Meeting attendance—arrive early! by September 30, 2004. FREE tickets For more information, contact Karlon Blythe, will be awarded to the first 25 students [email protected]. who respond to an e-mail invitation, based on the eligibility criteria above. Geology in Government Mentor Program Registration is required. Time and Mon., Nov. 8, 11:30 a.m.–1 p.m. location to be announced. Location TBA For more information, contact Karlon Blythe, [email protected]. Find us on the Web at www.geosociety.org.
44 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 45 STUDENTS: Apply for Travel Grants Today
The GSA Foundation has awarded $4,500 in grants to each of the six GSA sections. The money, when combined with equal funds from the sections, is used to help GSA undergraduate Student Associates and graduate Student Members travel to GSA meetings. For information and deadlines, please visit the Web sites from each Section listed below or contact the Section secretary directly.
CORDILLERAN www.geosociety.org/sectdiv/cord/ Joan E. Fryxell (909) 880-5311 [email protected]
ROCKY MOUNTAIN www.geosociety.org/sectdiv/rockymtn/ Kenneth E. Kolm (303) 273-3932 [email protected]
NORTH-CENTRAL www.geosociety.org/sectdiv/Northc/ Robert F. Diffendal Jr. (402) 472-7546 [email protected]
NORTHEASTERN www.geosociety.org/sectdiv/northe/ Stephen G. Pollock (207) 780-5353 [email protected]
SOUTH-CENTRAL www.geosociety.org/sectdiv/southc/ Elizabeth Y. Anthony (915) 747-5483 [email protected]
SOUTHEASTERN www.geosociety.org/sectdiv/southe/ Donald W. Neal (252) 328-4392 [email protected]
44 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 45 Call for Applications and Nominations for Geology Co-Editor
GSA is soliciting applications and nominations for the position of co-editor of Geology, an international geosciences journal for rapid publication of leading research. The co-editor will serve a four-year term, beginning in January 2005 (exact start date to be negotiated), and will be one of a three-editor team. A co-editor with expertise and broad interests in tectonics/structural geology would best complement the continuing editors’ strengths, but fields are flexible.
Desirable characteristics for the successful candidate GSA provides the editor with a small stipend, as well as include: expenses for administrative assistance, mail, and telephone/ 1. Broad interest and experience in geosciences online. The editor will work out of his/her current location at 2. International recognition work or home—no move is necessary. 3. Progressive attitude; willing to take risks and encourage innovation If you wish to be considered, please submit a curriculum 4. Familiar with many earth scientists and their work vitae and a brief letter describing why you are suited for the position. If you wish to nominate another, please submit a 5. Sense of perspective and humor letter of nomination and the individual’s permission and CV. 6. Organized and productive Send nominations and applications to Jon Olsen, Director 7. Willing to work closely with GSA headquarters staff of Publications, GSA, P.O. Box 9140, Boulder, CO 80301, 8. Able to make decisions [email protected], no later than September 7, 2004. 9. Familiar with new trends in geosciences 10. Willing to consider nontraditional research in geosciences
Geoindicators Update: Growing Interest in Tracking Rapid Geological Change A.R. Berger, Victoria, British Columbia As the evidence for abrupt climatic and environmental engaged for several years in a series of meetings to identify change grows, the task of assessing the effects of rapid geo- geological processes of importance to park ecosystems and logical processes is becoming more important. Interest is management. This process includes scoping out the human growing in tracking and reporting landscape changes that influences on landscape components. Ways to include geo- take place within a normal human lifetime (<100 years), indicators in monitoring the ecological integrity of national especially where there are high risks from natural hazards. parks are also being developed in Canada. In Colombia, With support from GSA, the International Union of geoindicators are assisting in designing a national system Geological Sciences is working to emphasize the impor- to assess the environmental impacts of mining and quarry- tance of tracking rapid geological change in State of the ing. In Australia and Argentina, national networks are be- Environment (SoE) reporting, national park management, ing developed to promote the tracking of abiotic landscape long-term ecosystem monitoring and environmental impact change. The geoindicators framework is proving to be assessments in general. Using the geoindicator framework helpful in setting the background for understanding more developed primarily for non-geologists, a series of work- fully the ways in which past settlements and societies have shops and related activities has been held over the past responded to rapid landscape change. This is being done in five years to review and promote geological monitoring cooperation with a major international project titled “Dark in Lithuania, Poland, Zambia, Egypt, Mauritania, Australia, Nature—Rapid Natural Change and Human Responses” Argentina, Peru, Colombia, the United States, and Canada. and a similar effort by International Geological Correlation Further meetings are being planned for the Arctic, Algeria, Programme (IGCP) Project 490 (“The Role of Holocene Mozambique, Turkey, and Southeast Asia. Environmental Catastrophes in Human History”). The goal is Despite the current global trend to reduce government to inform current efforts to adapt and mitigate the landscape services, including many national efforts to monitor and effects of climate warming. For further information, see assess environmental change, there are encouraging signs. www.geoindicator.org and www.brunel.ac.uk/depts/geo/ In the United States, the National Park Service has been igcp490/igcp490home.htm.
46 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 47 CALL FOR NOMINATIONS
Thirteenth Annual Biggs Award
forfor ExcellenceExcellence inin EarthEarth ScienceScience Teaching Teaching forfor BeginningBeginning ProfessorsProfessors
The Biggs Award was established by GSA to reward and encourage teaching excellence in beginning profes- sors of earth science at the college level. Eligibility Earth science instructors and faculty from all academic institutions engaged in undergraduate education who have been teaching full-time for 10 years or fewer. (Part-time teaching is not counted in the 10 years.) Award Amount An award of $750 is made possible as a result of support from the Donald and Carolyn Biggs Fund (maintained by the GSA Foundation), the GSA Geoscience Education Division, and GSA’s Education and Outreach Programs. In addition, this award also includes up to $500 in travel funds to attend the award presentation at the GSA Annual Meeting. Deadline and Nomination Information Nomination forms for the 2004 Biggs Earth Science Teaching Award are posted at www.geosociety.org/ aboutus/awards/biggs.htm. Or, contact Diane Lorenz, (303) 357-1028, [email protected]. Nominations must be received by May 1, 2004. GEOVENTURES 2 0 0 4 : Mail nomination packets to: Diane Lorenz April Showers Bring May Deadlines Program Officer, Grants, Awards, and Medals Sign up now for GeoVentures to Iceland, Mongolia, GSA P.O. Box 9140 Colorado, or Yellowstone! Visit www.geosociety.org or Boulder, CO 80301-9140 see the March issue of GSA Today for details. Don’t delay— GRADUATE SCHOOL INFORMATION FORUM Meet face-to-face with prospective students in a relaxed, reserving multiple days will be assigned first and to the informal setting by participating in the Graduate School most visible booths. Information Forum (GSIF) during the GSA Annual Participating schools will be promoted in the October Meeting. Take advantage of this excellent opportunity to GSA Today (pending submittal date of your reservation promote your school to more than 1,500 students. form), the 2004 Annual Meeting Program, and e-mail links Located just inside the entrance to the Exhibit Hall, on the GSA Web site so that prospective students may next to the poster sessions, the GSIF booths are in a highly schedule appointments prior to the Annual Meeting. visible area. The forum will be open Sunday, 8 a.m.–8:30 Go online to reserve your space at p.m. This coincides with the Welcoming Reception in the https://rock.geosociety.org/forms/xGSIF_form.asp. Exhibit Hall on Sunday evening. The hours for Monday through Wednesday are 8 a.m.–5:30 p.m. You may choose For more information, contact Kevin Ricker at from one day to all four days. Space is limited, and Sunday (303) 357-1090 or [email protected]. and Monday will be the first to sell out. Those schools Reserve your space now!
46 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 47 Information on secular variation is now widely scattered, much of it in specialized literature, and it has never been synthesized on the scale that we visualize for this conference. Penrose Participants will be sought who can shed light on secular variations in the following broad areas. • Earth’s tectonic regime • particular tectonic settings Conference • plate reconstructions and plate-mosaic evolution • the sedimentary record • the igneous record • the metamorphic record Scheduled • structural geology • the fossil and organic record • ore deposits Secular Variation in • paleoclimate • atmospheric composition Tectonics and Allied Fields • paleo-oceanography • sea-level and continental hypsometry • extraterrestrial events and forcings October 22–28, 2004 • geodynamics • global heat production • geochemical cycles St. George, Utah • mantle evolution Conveners: • crustal growth and recycling The meeting will cover the state of knowledge, working Dwight Bradley, U.S. Geological Survey, 4200 University hypotheses, and key questions in long-term secular variation Drive, Anchorage, AK 99508, (907) 786-7434, within these fields and perhaps others not listed. The goal is to fax 907-786-7401; [email protected] achieve an atmosphere for new ideas, cross fertilization, and John Dewey, Geology Department, University of California, identification of new research opportunities. It will not be a One Shields Avenue, Davis, CA 95616, (530) 754-7472, surprise if huge gaps in knowledge are revealed, especially in fax 530-752-0951, [email protected] structure and regional tectonics. In keeping with the complex- ity of the earth system, and mindful of the interplay between tectonics and most other fields, the conference is intentionally Plate reconstructions are a time-honored approach to syn- broad in scope. The focus will be on long time scales, ranging thesizing earth history. Geologic, paleomagnetic, and pale- from the entire span of earth history down to a few hundred ontological data have together revealed the broad outlines million years. Problems involving preservation, age assign- of global paleogeography and plate interactions back to the ments, sampling bias, and real versus apparent secular varia- late Paleozoic. But the plate-reconstruction approach has two tion will be aired. Participants will be asked to key their data shortcomings: robust reconstructions are impossible for the to an agreed-upon current geologic time scale, and, for ease of deep past (because not enough rocks have survived), and comparison, to plot results using a standardized time axis. even the best reconstructions do not reveal much about the past workings of the earth system. Planned Volume on Secular Variation. A separate call for This Penrose Conference will highlight a complementary ap- papers will follow for contributions to a multi-chapter, post- proach to the study of earth history, which might be referred conference volume, Secular Variation in Tectonics and Allied to as secular analysis. This involves the tracking of individual Fields. The deadline for papers will be around December 2005 geologic variables as a function of geologic age. One such and the target date for publication around December 2006. variable is Earth’s radiogenic heat production, which has de- Contributors need not attend the conference. Contact editor clined exponentially since 4.5 Ga and thus has slowed the Dwight Bradley to express an interest. tectonic engine. Others include the strontium-isotopic com- Venue and Logistics. The conference will be cosponsored by position of seawater, K/Na ratios of shales, ages of juvenile the U.S. Geological Survey, and it will be held at the Holiday continental crust, and abundances of key rock types such as Inn in St. George, southwestern Utah. This is a spectacular komatiites, blueschists, and redbed-copper deposits. To the part of the world, only 42 miles from Zion National Park and growing number of practitioners, two advantages of secular 165 miles from the Grand Canyon. The estimated registration analysis stand out: (1) many broad-scale problems are tractable fee of $975 will cover lodging, meals, and the field trip, but despite the scarcity of rocks of certain ages; and (2) any viable will not cover transportation to the meeting site. The closest explanation for a particular secular trend must also honor all large airport is in Las Vegas, 120 miles to the south. other trends—hence the value of an encyclopedic approach. Field trip through the Grand Staircase. There is no bet- ter place than the Colorado Plateau to be reminded of the
48 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 49 University of Urbino Summer School in Paleoclimatology
From Ron Blakey’s Web site (http://jan.ucc.nau.edu/~rcb7/Grand_ Staircase_topo.jpg) July 12-20, 2004 Urbino, Italy
vastness of geologic time. Two out of the five meeting days Paleoceanography will be devoted to a field trip through the “Grand Staircase” Micropaleontology when we’ll visit the North Rim of the Grand Canyon, Zion Geochemistry National Park, Bryce Canyon National Park, and other Climate Modeling locales. The formations of the Grand Staircase represent most of Phanerozoic time and were deposited in tectonic Instructors: settings that include passive margin and foreland basin—all H. Brinkhuis, K. Caldeira, R. Corfield, laid out in spectacular exposures. M. Huber,M. Kaminski,L. Lourens, A. Montanari, I. Premoli-Silva, I. Raffi, To Apply. Contact the co-conveners by e-mail for application G . J. Reichart, J. Zachos, P. Ziveri materials. We encourage interested graduate students to ap- ply; some partial subsidies will be available. The conference will be limited to 75 participants. For more information: Application deadline: July 1, 2004 http://www.uniurb.it/USSP Abstract deadline: September 1, 2004 Application deadline Registrants with Special Needs. GSA is committed to mak- April 15, 2004 ing Penrose Conferences accessible to all. If you require special arrangements or have special dietary concerns, please contact one of the conveners.
Rocky Mountain–Cordilleran Sections Joint Meeting May 3–5, 2004 • Boise Centre on the Grove, Boise, Idaho
Information: C.J. Northrup, Boise State University, Shlemon Mentor Program Department of Geosciences, 1910 University Dr., Mon. and Tues., May 3–4, 11:30 a.m.–1 p.m. Boise, ID 83725, (208) 426-1009, [email protected] Perch Room, Boise Centre on the Grove Students: If you have career-related questions, plan to attend the Shlemon Mentor Program at the Cordilleran– Students will receive a FREE LUNCH ticket along with Rocky Mountain Sections Joint Meeting to chat one-on-one their registration badge to attend each Shlemon Program. with practicing geoscientists. These volunteers will answer However, space is limited. First come, first served. your questions and share insights about how to get a job after graduation. Each day’s program will offer a different set of mentors. These programs are made possible by the Roy J. Shlemon Fund, administered by the GSA Foundation.
www.geosociety.org/sectdiv/sections.htm
48 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 49 convergent plate margins. Using compositional data mostly from the trans-Mexican volcanic belt lavas and thermal melt- ing models of the subduction process, Langmuir proposed that Penrose controls of the degree of melting include wedge geometry and thermal structure, source compositions, and convergence rates. Working with samples from the well-exposed eruption se- quences of the central Andes, Wörner concluded that magma Conference genesis through space and time was controlled by crustal het- erogeneity and thickening since the Miocene. The posters cov- ered mostly recent petrological studies of volcanic complexes in México, Central America, the Cascades, and New Zealand. Report Stephen Grand described a newly funded project to image the Mexican convergent margin with a 50+ seismometer array, a work that should tie well into the many petrological transects Neogene-Quaternary of the volcanic belt. Continental Based on the Smithsonian database for the 1926 Mexican volcanoes, Jim Luhr concluded that the three main magmatic suites in México are (1) calc-alkaline magmas of the trans- Margin Volcanism Mexican volcanic belt and Northern Mexican Extensional Province, (2) lamprophyres of the western trans-Mexican vol- January 12–16, 2004 canic belt, and (3) intraplate type mafic alkaline rocks of the Northern Mexican Extensional Province and Pacific Islands. Sixteen posters covered a wealth of new work on the petrol- Metepec, Puebla, México ogy of trans-Mexican volcanic belt volcanoes, including the Chichinautzin volcanic field, which rims the southern end of Conveners: the Valley of México. Xitle, one of the Chichinautzin monoge- netic volcanoes, produced a lava flow with a 14C age of 1665 Gerardo J. Aguirre-Diaz, Centro de Geociencas, Universidad years B.P., which partly buried Cuicuilco pyramid and now Nacional Autónoma de México—Juriquilla, México; José Luis underlies the campus of the National University. Macías and Claus Siebe, Instituto de Geofisica, Universidad Nacional Autónoma de México—México D.F., México While pungent smells from Popocatépetl occasionally swept the conference complex at Metepec, Fraser Goff and James Reporter: Grant Heiken, Freeland, Washington, USA Gardner gave keynote lectures on the physical role of gases in continental margin volcanism. Given the great depth of The Mexican volcanic belt crosses México from the Pacific to Popocatépetl’s crater and the possibility of eruptions at any the Gulf of Mexico and is composed of hundreds of Neogene- time, in-situ gas sampling has been impossible. Therefore, Quaternary volcanoes, ranging from humble scoria cones to most of Goff’s data were from simultaneous FTIR and COSPEC the great composite cones of Popocatépetl and Citlaltépetl measurements of eruption plumes. Like most volcanoes at (Orizaba). Holocene and Historic eruptions continue to affect convergent margins, emissions from Popocatépetl are mostly the peoples of México; for example, eruptions changed the water vapor with high values of Stotal, F, As, and Hg (with re- course of history between Classic and Post-Classic cultures spect to Cl). Over a four-year period, the HCl/SO2 ratio has when the valleys of México and Puebla were subjected to been increasing and HF/SO2 ratios have been decreasing. tephra fallout and secondary lahars (volcanic mudflows). CO2 fluxes range from 40,000 t/day to >100,000 t/day. Plume Understanding magma evolution and eruption dynamics are emissions also contain SiF4. The observed range of gas ratios critical to México in that modern urban agglomerations rang- indicates temperatures of 200 ± 20 °C, which may indicate re- ing in size from 2.2 to 20 million people will be affected by action of gases with conduit walls or with ash particles in the future eruptions. cooling plume. The purpose of this Penrose Conference was to evaluate With an emphasis on rhyolites, James Gardner reviewed the the present state of knowledge of the source and evolution of dynamics of bubble growth in magmas, integrating observation magmas that formed the Neogene-Quaternary continental-mar- with experiments. The pumice, ash, and gases erupted are all gin volcanic belt associated with the Mexican portion of the products of bubble nucleation, growth, and degassing. Bubble “Ring of Fire.” Discussions included the complexities of volca- interactions and partial connectivity can produce coexisting nic styles that promote explosive eruptions, sector collapse of bubbles that differ in size by more that 20 times. During the volcanoes, volcaniclastic sedimentation, and related volcanic roundtable discussion, it was noted that there is passive degas- hazards. The case of México was compared with continental- sing between eruptive phases. margin volcanism at other places in the Americas, such as the Andes in Colombia and the Cordillera and Cascades of the Zimmer and Erzinger’s continuous measurements of fuma- western United States. roles at Merapi, Indonesia, demonstrate the influence of rainfall on gas flux and temperatures; during the dry season, fumarole Working upward from the roots of continental margin vol- temperatures are constant. Using data from Mount Pinatubo, canic belts, keynote speakers Charles Langmuir and Gerhard Philippines, Hammer concluded that the explosive eruption Wörner reviewed the latest interpretations of processes at
50 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 51 Conference participants at Tlamacaz mountaineering lodge on the upper slopes of Popocatépetl. Iztaccíhuatl volcano (5,272 m) in the background.
of dense, microlite-rich, partly-degassed Nevado del Ruiz catastrophe felt ground are associated with Miocene calderas tephra, along with vesicular, microlite- tremors before the lahar arrived. On that and may have been erupted during the free pumice during pulsatory eruptions basis, acoustic flow monitors have been opening of the Gulf of California. Much reflects variable magma travel times. installed in the valleys around Mount work needs to be done on this province Having constructed the volcanoes, Rainier to provide at least a 45-minute in spite of the difficulties offered by the meeting moved on to their destruc- warning to downstream towns. the terrain and isolation. Mike Branney tion via sector collapse, avalanches, In the panel discussion it was agreed provided a summary of what is known and lahars. This session was an excel- that the sector collapse, avalanche, about massive ignimbrite deposits (“large lent introduction to the field trip during and mudflows that were generated by explosive eruptions” were defined by Branney as those with volumes of >1 the last day of the meeting to deposits the 1980 eruption of Mount St. Helens 3 3 left by at least three sector collapses was the turning point in recognizing km to >1000 km ). Most are character- of the Paleo-Popocatépetl cone; the this widespread hazard. Since 1980, ized by high mass flux sustained for youngest of these deposits is ~23,000 300 sector collapse deposits have been hours or days and associated caldera yr B.P. Hummocky terrain and debris identified at volcanoes along continental collapse. The pyroclastic density currents avalanche deposits south-southwest of margins; their volumes range from 0.1 to produced during these eruptions can Popocatépetl cover over 300 km2 and 5 km3 (Lee Siebert). Hot research themes be fully dilute or granular-fluid–based, have a cumulative volume of >30 km3. include the transition of sector collapse based on conditions near the lower flow The youngest of the avalanche deposits avalanches to debris flows and why boundaries. Complex deposit architec- are overlain by blast and pyroclastic flow some debris avalanches stop and others tures are affected by the nature of the deposits. Preliminary studies indicate liquefy and keep moving; for example, density current and the complexity of that runout was at least 70 km south of the lahars formed during the last erup- underlying terrain. the cone. Sector collapse and debris ava- tion of Cotopaxi reached the sea, 300 km Within volcanic provinces with large lanches have occurred at nearly all large downstream. The sedimentary aftermath volumes of rhyolite, it is often difficult Mexican composite cones. of a large-scale eruption may be a haz- to distinguish between densely-welded In the Cascade Range of the United ard larger than the eruption itself. James rheomorphic ignimbrites and clasto- States, the dense forest makes docu- White described eruptions on the North genic lava flows. Using examples from mentation of lahar (volcanic mudflow) Island of New Zealand that buried en- the Snake River Plain, Bill Bonnichsen deposits extremely difficult. Kevin Scott tire drainage systems and created lakes. described transitions from non-welded is now documenting the extent and Subsequent failure of the tephra dams ignimbrites to high-grade rheomorphic magnitude of lahar deposits with lidar produced high-concentration flows that ignimbrites to clastogenic lava flows and imagery. This application has enhanced swept downstream areas now occupied on out to domes having little evidence evaluation of lahar hazards, which in the by cities. for fragmentation. past have been very conservative. He México has some of the largest ignim- Dealing with a deadly but much explained that lahar mobility is difficult brite deposits in the world. For example, smaller-scale eruption type than the to demonstrate to disaster planners and in the Sierra Madre Occidental, ignim- large ignimbrites, the session on block has found that comparing it with water brite sequences can be thousands of and ash flows associated with dome floods gets the message across. Lahar meters thick and have volumes of hun- collapse focused on recent eruptions warnings are possible. Survivors of the dreds or even thousands of km3. Most at volcanoes like Colima, México, and
50 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 51 In slightly less than one week, this dynamic group of 104 workshop par- ticipants (including about 30 students) went from the mostly academic pursuit of petrology to the sociological aspects of volcanic disaster mitigation. What was evident is that all of the pieces are available to complete the puzzle, but that the volcanological community has a long way to go to assemble those pieces and to mitigate volcanic hazards. There is hope for increased volcanological re- search and successful disaster mitigation in México; at this Penrose Conference it was evident that, in addition to the well- respected Mexican volcanological com- munity, there are many talented students at Mexican universities who will carry this work into the future. For more information on the confer- ence, visit http://tepetl.igeofcu.unam.mx/ penrose/index.html. A GSA publication is also in preparation (Volcanic hazards in Conference participants inspecting the 14,000 yr B.P. “Tutti Frutti” sequence at Popocatépetl during the field trip. the México City metropolitan area from eruptions at Popocatépetl, Nevado de Toluca, and Jocotitlán stratovolcanoes and monogenetic scoria cones in the Montserrat. Block and ash flows begin with dome collapse and formation of deca- Sierra Chichinautzin volcanic field, by meter-sized blocks (Marcus Bursik). In the final deposit the same blocks have been C. Siebe and J.L. Macias). fragmented into particles ranging in size from 1 mm to 2 m. High on the dome slopes (~35°), the deposits are 1 to 2 m thick, but in distal regions with slopes Additional Sponsoring of 10° to 20° they are up to 8 m thick. Many are preceded by pyroclastic surges. Organizations: Much of the mechanical crushing seems to occur at breaks in slope. Bursik also • International Association of discussed modeling of these flows but emphasized “numerical models are useless Volcanology and Chemistry of the without field observation.” Earth’s Interior The last link in the chain of discussions that began with magma genesis was that • Coordinación de la Investigación of reducing risk at continental-margin volcanoes. The mitigation issues reviewed by Científica, Universidad Nacional Robert Tilling are: Autónoma de México (UNAM) • increasing population growth and air traffic; • Instituto de Geofísica, UNAM • no capability to reliably predict explosive eruptions; • Instituto de Geología, UNAM • the fact that most volcanoes are not monitored; • Centro de Geociencias (Juriquilla, • a low frequency of destructive events; and Querétero), UNAM • effective communication between scientists, civil authorities, news media, and the • Centro Universitario para la population is at risk. Prevención de Desastres, Benemérita Universidad Autónoma de Puebla A major quandary concerns monitoring parameters versus time; when do you force local officials to make decisions? There is also the dilemma of acquiring fund- • Gobierno del Estado de Puebla, ing for monitoring for infrequent but catastrophic activity. Hazard maps are useful México for those who understand how to read them, but don’t work well for the public. • Volkswagen de México (Puebla) Public lectures and pamphlets are useful but reach only about 1% of the public. Visualization of processes and videotapes of actual events are more effective, but not if the media will not present them to the public. Methods of reaching the public were Participants discussed during the roundtable, with the suggestion that a system similar to that Gerardo J. Aguirre-Díaz used by the weather service for tornado warnings be implemented. Lilia Arana Salinas José L. Arce Gavilanes noted that mixed signals put the population at risk during eruptions of Zachary D. Atlas Volcán de Colima during 1999–2003. There were many conferences in the villages, Dawnika L. Blatter but conflicting signals from the authorities and the army created confusion and frus- Bill Bonnichsen tration among the residents. He also noted the great need for sociologists to work Michael Branney with volcanologists for effective hazard mitigation.
52 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 53 Scott Bryan Ana L. Martín Alain Burgisser Raymundo G. Martínez- Marcus Bursik Serrano REMINDER: Lucia Capra Michael Matthes Gerardo Carrasco-Nuñez Irma Fabiola Meniola Lopez Renato Castro y Govea Lorenzo Meriggi PENROSE Hector Cepeda Patricia J. Miranda Amanda Clarke Ricardo J. Molinero Alicia Cuevas Muñiz Juan Carlos Mora Chaparro CONFERENCE Marco D’Antonio Erika Socorro Muñoz Servando De la Cruz-Reyna Martínez Hugo Delgado-Granados Karoly Nemeth SCHEDULED Jorge Nieto Obregon Rodolfo Díaz Castellón Gianluca Norini Ramón Espinasa Perena Michael H. Ort Juan-Manuel Espíndola Mass Redistribution Maria-Amabel Ortega-Rivera Tobias P. Fischer John S. Pallister in Continental Magmatic- James Gardner Eugene Perry Juan Carlos Gavilanes-Ruiz Thomas C. Pierson Hydrothermal Systems Guillaume Girard Luca Ferrari Ricardo Girón Saucedo Nancy Riggs September 6–12, 2004 Martha M. Godchaux Jaime Roldan-Quintana Maria de Lourdes Godínez Calderón Andrea Rossotti Yellowstone National Park Fraser E. Goff Genji Saito and Butte (Fairmont Hot Springs), Juan Carlos Gómez Avalos Damiano Sarocchi Arturo Gómez-Tuena Peter E. Schaaf Montana Silvia González Hans-Ulrich Schmincke Alberto E. González Huesca Kevin M. Scott Conveners: Timothy Gubbels Michael F. Sheridan Julia E. Hammer Claus Siebe John H. Dilles, Department of Geosciences, Wilkinson Toshiaki Hasenaka Lee Siebert Hall 104, Oregon State University, Corvallis, Oregon 97331-5506, USA, (541) 737-1245, fax: 541-737-1200, Grant H. Heiken Robert B. Stewart [email protected] Maria Christina Hernández Susanne M. Straub Roberto Sulpizio Hernández Greg B. Arehart, Department of Geological Sciences, Ignacio Hernández Javier Robert Ingersoll Tilling University of Nevada, Reno, Nevada 89557-0138, USA, David Hilton José Ramón Torres (775) 784-6470, [email protected] David Huddart Hernández Lillie Jaffe Margarito Tristan González Peter I. Nabelek, Department of Geological Sciences, University of Missouri, Columbia, Missouri Maria del Carmen Jaimes Martin Ulrike 65211, USA, (573) 884-6463, fax 573-882-5458, Viera Gabriel Valdez Moreno [email protected] Christina D. Jan Greg A. Valentine Benjamin R. Jordan Nick Varley Todd C. Feeley, Department of Earth Sciences 4 Hitching Guillermo Labarthe Guadalupe Velazquez- Post Road, Montana State University, Bozeman, Montana Rebecca A. Lange Oliman 59717-0348, USA, (406) 994-6917, fax 406-994-6923, Charles H. Langmuir Michael West [email protected] William P. Leeman James D. L. White Gabriel Legorreta Paulin Wendi J. W. Williams Application Deadline: June 1, 2004 Esther Leyva-Suárez Luke Wooller For complete information on this conference, see Carlos Linares López Gerhard Wörmer Sabine Wulf the December 2003 issue of GSA Today (also posted Aída López Hernández at www.geosociety.org/pubs/gsatoday/) or visit Araceli Zamora-Camacho James F. Luhr www.geosociety.org/penrose/. José L. Macías Martin Zimmer Anton H. Maria Randall A. Marrett
52 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 53 GSA Foundation Update Donna L. Russell, Director of Operations
California and chief of the California Division of Mines James E. Slosson Joins in Geology. He has also spent over 35 years teaching in GSA Foundation Board academic institutions. Slosson has served on a number of local, state, and of Trustees national commissions and advisory boards. He has also Lee J. Suttner, Chair, Board of Trustees authored more than 100 papers, chiefly on natural and human-caused geologic hazards and their consequences. The Society has bestowed on him its Richard Jahns James Slosson The GSA Foundation is pleased to Distinguished Lecturer Award, the Distinguished Practice announce the addition of GSA Fellow James Slosson, chief Award, and the E.B. Burwell, Jr., Award, the latter for his engineering geologist and president of Slosson & Associates coauthored book Forensic Engineering. He was the first to to its Board of Trustees. be chosen as a GSA Roy J. Shlemon Applied Geology Mentor.
Slosson received his entire formal academic training in The Board will benefit greatly from the wisdom and geology at the University of Southern California. Prior to associations Slosson has obtained during his broad and starting his company, which specializes in various areas successful career in applied geoscience. Please join me in of applied geoscience, including hazard mitigation and expressing appreciation to him for assuming this important prevention, forensic geology, earthquake/seismic studies, responsibility. and groundwater geology, he was state geologist for
Thank You, 2003 Donors! Please see the special insert in this issue listing those who contributed to the GSA Foundation during 2003. GSA and the GSA Foundation thank you for your sup- port of GSA programs.
Donate Online Most memorable early geologic experience: In late June (about 1970) Clarence Hall and I met It’s easy! It’s quick! It’s secure! Ben Page and Tom Dibblee in the central coast range Go to www.geosociety.org to talk geology. Tom confirmed the legend that he supplemented his field diet with vegetables that fell off Click on “Donate Online” and follow the produce trucks! user-friendly instructions today! —W.G. Ernst
Enclosed is my contribution in the amount of $______. Please credit my contribution for the: Greatest need Other: ______Fund I have named GSA Foundation in my will. PLEASE PRINT
GSA FOUNDATION Name 3300 Penrose Place, P.O. Box 9140 Address Boulder, CO 80301-9140 (303) 357-1054 City/State/ZIP [email protected] Phone
54 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 55 GSA FOUNDATION SEEKS PRESIDENT The Foundation of the Geological Society of America seeks a geoscientist, preferably with national recognition for achievements in the geosciences and administration, to be its president. The individual should have a strong interest and experience in, or working knowledge of, fund raising and development. Primary responsibilities will include oversight and direct participation in fund raising for GSA programs and activities; identifying, cultivating and soliciting major donor prospects including individuals, corporations, and foundations; stewardship of funds; and staff administration. This person will be expected to have a major role in designing and implementing a strategic fund raising and development plan for the Foundation, and to closely and regularly interact with the executive director of the Geological Society of America and members of its staff, the GSA Foundation Board of Trustees, and the GSA Council. The president will report to the GSA Foundation Board of Trustees and be assisted in the Foundation by a full-time director of operations and a data manager.
The position will be approximately half time, with a flexible schedule and with the bulk of the activities to be conducted from the Society’s headquarters in Boulder, Colorado, although full-time relocation to the Boulder area may not be required. A range of compensation options exists, depending on experience and qualifications of the candidate, and the length of the appointment. Interested persons should electronically transmit a letter of application, resume/vita, and the names, addresses, and telephone numbers of three references to Lara Womack, GSA Human Resources Director, [email protected], or, if unable to transmit electronically, mail the information to GSAF President Search Committee, c/o Lara Womack, P.O. Box 9140, Boulder, CO 80301-9140. Nominations of potential candidates by members of the geoscience community are also encouraged. Effective closing date for the applications is May 15, 2004, with a target starting date of September 1, 2004. The GSA Foundation is a non-profit corporation and an Equal Opportunity, Affirmative Action Employer.
54 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 55 Announcements
2004 May 21–23 67th Annual Friends of the Pleistocene (Northeastern Section) meeting, The Deglaciation of the Great Bend Region of Northeastern Pennsylvania. Information: www.climatechange. umaine.edu/friends/, Duane Braun, [email protected]. May 24–25 5th Annual Coalbed & Coal Mine Methane, Denver, Colorado. Information: Strategic Research Institute, (888) 666-8514 (within the U.S.), (646) 336 7030 (outside the U.S.), [email protected], www.srinstitute.com/cg113. July 25–29 GML (Geography Markup Language) Days 2004, Vancouver, British Columbia. Information: www.gmldays.com, (604) 484-2750, [email protected]. October 20 Ohio River Valley Soils Seminar XXXV—Rock engineering and tunneling, Louisville, Ken- tucky. Information: Tom Rockaway, University of Louisville, Department of Civil and Environ- mental Engineering, Louisville, Kentucky 40292, (502) 852-3272, [email protected]. (Abstract deadline: May 1, 2004.) Oct. 31–Nov. 4 International Annual Meetings of the American Society of Agronomy (ASA), Crop Science Society of America (CSSA) and Soil Science Society of America (SSSA) with the Canadian Soci- ety of Soil Science: Science to Secure Food and the Environment, Seattle, Washington, USA. Information: Keith Schlesinger, [email protected], www.asa-cssa-sssa.org/anmeet, (608) 273-8080. (Title–Summary Form deadline: May 3, 2004.) 2005 November 6–10 International Annual Meetings of the American Society of Agronomy (ASA), Crop Science Society of America (CSSA) and Soil Science Society of America (SSSA), Salt Lake City, Utah, USA. Information: Keith Schlesinger, [email protected], www.asa-cssa-sssa.org/ anmeet, (608) 273-8080. 2006 November 12–16 International Annual Meetings of the American Society of Agronomy (ASA), Crop Science Society of America (CSSA) and Soil Science Society of America (SSSA), Indianapolis, Indiana, USA. Information: Keith Schlesinger, [email protected], www.asa-cssa-sssa.org/
MEETINGS CALENDAR anmeet, (608) 273-8080. Visit www.geosociety.org/calendar/ for a complete list of upcoming geoscience meetings.
History of Geology Division Initiates a novel theory? Is there part of geol- Science Fellowship at the Library of Student Award ogy whose origins you would like to Congress GSA’s History of Geology Division investigate? The Nielsen & Bainbridge Corpora- is soliciting proposals for a student The History of Geology Division tion, a leading manufacturer of prod- award for the amount of $500 for a would like to hear from you! Mentors ucts to preserve art work, will sponsor paper to be given at the national GSA are available to help you with this pro- a fellowship in conservation science at meeting. It may be a history of geology cess, or you may work with your own the Library of Congress. The 12-month paper or a literature review of ideas for faculty. For proposal guidelines and fellowship will begin in the fall of 2004 technical work. application forms, contact: Professor and offer a $35,000 stipend. Are you interested in where the William Brice, [email protected], Geol- The goal of the fellowship, located in ideas that you work with came from? ogy and Planetary Science, University Library Services, Preservation Director- How do you know your research is of Pittsburgh at Johnstown, School- ate, Research and Testing Division, will original? What ideas have been promi- house Road, Johnstown, PA 15904. be to conduct research into the effects nent in the literature review you have Due date for proposals and applica- of zeolites (molecular sieves) on the done for your thesis or dissertation? tion is May 1, 2004, so that content long-term stability of library materials Were there ideas that didn’t work out? and the official GSA abstract can be and to develop practical library appli- Why? Is your portion of our science refined. The Division award committee cations for this technology. An impor- “refining the numbers” and extending will make the selection. tant element of the fellowship involves observations, or are you working on working closely with scientists from
56 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 57 In Memoriam ��� ��������������������������������� �������������� ������������� ����� Francis R. (Joe) Boyd Jr. Washington, D.C. January 12, 2004 Tudor T. Davies Woodbridge, Virginia November 27, 2003 Jose R. Dominguez Caracas, Venezuela January 14, 2004 Renaud M. DuDresnay Rabat, Morocco November 9, 2003 Sidney S. Galpin Clarksburg, Washington November 17, 2003 William R. Moran La Canada, California January 22, 2004 Edward L. Reed Midland, Texas November 27, 2003 Donald W. Peterson Albuquerque, New Mexico December 12, 2003 Clay T. Smith ��������������������������������������� Socorro, New Mexico ��������������������������������������������������� ������������������������������������������������� November 20, 2003 ������������������������������������������������������� �������������������������������������������������� ��������������������������������������������������� ������������������������������������������������ Wilhelmus T. Van Middelaar ������������� ����������������������������������������������������� Stamford, Connecticut ���������������������������������������� ����������������������������������������������� January 23, 2003 ������������������������������������������������� ���������������������������������������������� ������������������������������������������������ �������������������������������������������������� Robert A. Vargo ������������������������������������������������������ ����������������������������������������� California, Pennsylvania ����������������������������������������������������������� ���������������������������������������������������� January 9, 2004 ������������������������������������������������ ���������������������������������������������� ������������������������� ������������������������������������������
the Getty Conservation Institute in Los Angeles who have conducted ���������� important research into zeolites. ��������������������������� �������������������������������������� Individuals interested in applying ������������������ ����������������������������� for the fellowship should submit a ������� � ������� cover letter describing their interest ��������������������������������������������������� � in this opportunity, a resume that outlines pertinent experience and GSA_030104 1 3/2/04, 8:42:34 AM the names of three references who GSA MEMBER’S SPECIAL! can attest to their qualifications. Explore Silicate Minerals CD-ROM Applications should be sent to Mark Roosa, Director for Preservation, PRICE REDUCED $19.95 — NOW $9.95 Library of Congress, 101 Indepen- Enhance your minerals class by using this great teaching resource. Full dence Ave. S.E., Washington, DC teaching notes, color mineral images and diagrams, and student activities. 20540-4500. Applications received by May 15, 2004, will be given first GSA Sales and Service consideration. P.O. Box 9140, Boulder, CO 80301-9140, USA • www.geosociety.org For additional information, visit (303) 357-1000, option 3 • 1-888-443-4472 • fax 303-357-1071 www.loc.gov/preserv.
56 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 57 Ethical Guidelines for Publication
Society publications are the vehicle 1.1. Council is responsible for setting 2.2. Editors should process manu- in which the results of scientific in- policy for all GSA publications and scripts rapidly. quiry, guided by the scientific method, appointing editors of books and jour- 2.3. The Editor has sole responsibil- are shared with other geoscience nals. The Publications Committee, as ity for acceptance or rejection of a researchers and made available to a an appointed committee of Council, manuscript. Manuscripts should have wider public audience. Results pre- offers advice and makes recom- peer review, but the Editor may reject sented in Society publications advance mendations on publication policy to or accept for cause (inappropriate for research, inform governmental policy Council. journal, clearly of poor quality, con- decisions, educate students, and assist 1.2. The Executive Director is respon- tents previously published elsewhere, the private sector in a wide range of sible for ensuring that publications etc.) endeavors. Thus it is important for the policies enacted by Council are car- 2.4. The Editor and editorial staff Society to maintain a level of quality ried out. and integrity in its publication process. should not disclose information This responsibility rests with all in- 1.3. Editors of books and journals are about submitted manuscripts ex- volved in the publication process—au- expected to carry out editorial duties cept to reviewers, Associate Editors, thors, reviewers, editors, GSA officials, in a manner consonant with policies Editorial Board members, and GSA and GSA staff. The following document set by Council and consistent with the publications staff. Information about outlines a set of ethical guidelines for Bylaws of the Society. They should a manuscript may be shared, with the all those involved in GSA publica- work closely with the Executive author’s permission, once a manu- tions (journals, books, maps, abstracts, Director and appropriate GSA script is accepted and scheduled for electronic media). Adherence to these headquarters staff (e.g., Director of publication (e.g., new releases, pre- guidelines should promote fair treat- Publications, Managing Editors, etc.). publication posting of the abstract, or ment of manuscripts through the peer 1.4. Editors have full responsibility inclusion in a list of contents, etc.). review process. for editorial and technical decisions 2.5. Responsibility for manuscripts This document draws heavily on on journal and book content. Society submitted by the Editor should be ethical guidelines prepared by other Officers, Councilors, and headquar- delegated to another Editor, Associate scientific societies, most notably the ters staff (including the Executive Editor, or Editorial Board member. American Chemical Society. The list Director) should not intervene or 2.6. The Editor should not handle of sources below also includes more comment on editorial decisions on manuscripts for which there is a general documents on ethics in sci- individual manuscripts. real or perceived conflict of inter- ence consulted in preparation of these 1.5. Inquiries from Councilors and est. Examples include, but are not guidelines. Officers on manuscripts under con- restricted to, past (within the last 5 • National Academy of Sciences: sideration will be handled in the same years) or current collaboration, per- On Being A Scientist: Responsible manner as communications from the sonal friend, employer or employee, Conduct In Research (stills.nap.edu/ general membership, which reflects family relationship, institutional rela- html/obas) the editorial staff’s standard practices. tionship, past or present graduate ad- • American Chemical Society Communications from Officers and visor or advisee, someone with whom (Reprinted [in part] with permis- Councilors about editorial business the reviewer has had a past or on- sion from “Ethical Guidelines to are considered official Society busi- going scientific controversy, or situa- Publication of Chemical Research,” ness, unless otherwise identified. tions where the Editor could stand to Chem. Rev. 2001, 101, p. 13A–15A. Official inquiries will receive prompt gain economically by publication or Copyright 1985, 1989, 1995, 2001 and complete action that becomes rejection of the manuscript. Editorial American Chemical Society.) part of the Society’s official record. responsibility should be delegated to • American Physical Society another Editor, Associate Editor, or 2. Editors, Associate Editors, and Editorial Board member. (www.aps.org/statements/02_2.html) Guest Editors of Books • American Geophysical Union 2.7. The Editor should not use infor- (www.agu.org/pubs/pubs_ The term Editor as used below re- mation, data, theories, or interpreta- guidelines.html) fers to Editors, Associate Editors, Guest tions of submitted manuscript in her/ • American Mathematical Society Editors of books, and Editorial Board his own work until that manuscript is (www.ams.org/secretary/ethics.html) members when delegated to serve in an in press or published unless the au- editorial capacity. thor has given permission to do so. 1. Society Officers, Councilors, and Society Staff 2.1. Editors will give manuscripts un- 2.8. If an Editor is presented with biased consideration. convincing evidence that the main
58 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 59 substance or conclusions of a publi- collections, or other means when whom the reviewer has had a past cation are erroneous, he/she should requested. or on-going scientific controversy, or facilitate publication of a report (e.g., 3.8. Authorship situations where the reviewer could correction, follow-up manuscript, or stand to gain economically by publi- other appropriate means) pointing out 3.8.1. Authorship should be limited cation or rejection of the manuscript. the error and, if possible, correcting to those who have made signifi- The Editor will decide if the conflict it. The report may be written by the cant contributions to the concept, is severe enough to prevent the re- person who discovered the error or design, execution or interpretation viewer from writing a fair, objective by the original author. of the work reported in a manu- review. script; others who have contributed should be acknowledged. 4.2. A reviewer should decline to 3. Authors and Co-authors review a manuscript if she/he feels 3.1. Manuscripts should contain origi- 3.8.2. Author order should be technically unqualified, if a timely nal, new results, data, ideas and/or in- agreed on by all authors as should review can’t be done, or if the manu- terpretations not previously published any changes in authors and order script is from a scientific competitor or under consideration for publication that occur while the manuscript is with whom the reviewer has had an elsewhere (including electronic media under review or revision. Changes acrimonious professional relationship, and databases). in authorship must be submitted to or a conflict of interest as defined the Editor in writing and must be above (section 4.1). 3.2. Authors should be encouraged to signed by all authors involved. avoid fragmentation of their published 4.3. Reviewers should be encouraged, submitted work where practical. 3.8.3. Authors and co-authors but not required, to sign reviews. The should review and ensure the accu- Editor will preserve anonymity of 3.3. Authors should inform the Editor racy and validity of results prior to of related manuscripts under consid- reviewers should a reviewer elect to submission; co-authors should have remain anonymous. eration elsewhere and provide copies opportunity to review manuscript if requested. before submission. 4.4. Reviewers should treat the manu- script as confidential. 3.4. Fabrication of data, results, selec- 3.9. Authors should reveal to the tive reporting of data, theft of intel- Editor any potential conflict of interest 4.5. Reviewers should ask the Editor for lectual property of others, and plagia- (e.g., a consulting or financial interest permission to discuss the paper with rism are unethical practices and in a company), that might be affected others for specific advice, giving names unacceptable. by publication of the results contained and reasons for such consultation. 3.5. Information obtained privately in a manuscript. The authors should 4.6. Reviewers should not pass the (e.g., in conversation, correspon- ensure that no contractual relations or manuscript to another to carry out the dence, or discussion with third par- proprietary considerations exist that review without permission from the ties) should not be used or reported would affect the publication of infor- Editor. in a manuscript without explicit mation in a submitted manuscript. 4.7. Reviewers should not use infor- permission from the party with 3.10. Authors are encouraged to dis- mation, data, theories, or interpreta- whom the information originated. close major funding sources (e.g., tions of the manuscript in their own Information obtained in the course of government agencies, private founda- work until that manuscript is in press confidential services (e.g., refereeing tions, private industry, universities) for or published unless the author has manuscripts or grant applications) reported research. given permission to do so. should be treated similarly. 3.11. Prepublication via Internet or 4.8. Reviewers should clearly support 3.6. Manuscripts will contain proper other methods is prohibited. and justify the basis for their review citation of works by others, especially analysis. publications of the original hypoth- 4. Reviewers eses, ideas, and/or data upon which 4.9. Reviewers should alert the Editor manuscript is based. 4.1. A reviewer should disclose real to similar manuscripts published or or perceived conflict of interests to under consideration for publication 3.7. Data and/or samples (especially the Editor before agreeing to write elsewhere in the event they are aware unusual or rare materials) upon a review. Examples include, but are of such. However, it is the responsibil- which a publication is based should not restricted to, past (within the last ity of the Editor, not the reviewer, to be made available to other scientists, 5 years) or current collaboration, per- decide on the proper course of action except in special circumstances (pat- sonal friend, employer or employee, once so informed. ent protection, privacy, etc.), in the family relationship, institutional manuscript or through accessible relationship, past or present gradu- data repositories, databases, museum ate advisor or advisee, someone with
Complete information for authors is posted at www.geosociety.org/pubs/. Submit articles to Geology and GSA Bulletin at www.gsajournals.org (go to “Online Journals”). Submit articles for GSA Today to Gerry Ross, [email protected], or Keith Howard, [email protected], and for Environmental & Engineering Geology to Alan E. Fryar, [email protected]. Submit book proposals to Abhijit Basu, [email protected], and digital and printed map proposals to J. Douglas Walker, jdwalker@ ukans.edu. Members of the GSA Publications Committee are listed at www.geosociety.org (go to “About GSA”).
58 APRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 59 EMERGENCE OF A PARADIGM predict how human-induced and natural changes in Once considered vast and unconnected, Earth’s one component will affect other components over the surface environment is now seen as finite and highly next century to millennium? Can we make scientific, interconnected by a complex web of feedbacks social and economic decisions that will minimize the among the biota, oceans, atmosphere, lithosphere, likelihood of catastrophic stress on the biosphere? and cryosphere. This Earth systems paradigm is being shaped by geoscientists and their colleagues THE VENUE in diverse disciplines of the natural sciences. Earth System Processes 2 will be held at the Together we are seeking a better understanding of spacious and well-appointed Westin Hotel in Calgary, the nature of these feedbacks in the modern world, Alberta, Canada. Calgary is strikingly beautiful in its how they have emerged and evolved over Earth his- high plains setting just beyond the foothills of the tory, and how they will respond to human perturba- Canadian Rockies, and the comfortable, friendly city tions in the future. is well known for welcoming visitors from all over The Geological Society of America (GSA) and the the globe. Plan to travel with family or friends and Technical Program Co-Chairs Geological Association of Canada (GAC) are combin- include a vacation to explore all the classic geology, Chris Beaumont, [email protected] ing their resources, as GSA did with the Geological paleontology and geomorphology that Alberta offers. Enjoy August in Calgary and the Rockies—long, Don Canfield, [email protected] Society of London in 2001, to co-convene a broad, interdisciplinary meeting to discuss the advances sunny days, crisp clear nights—a perfect spot to Lee Kump, [email protected] made in the last four years in our understanding of gather with fellow scientists and advance our under- Earth System Processes. standing of Earth system processes. Technical Program Committee Tim Lyons, [email protected] THE THEMES CALL FOR THEME SESSION PROPOSALS Guy Narbonne, [email protected] Ancient Earth Systems will explore the controver- The organizing committee seeks your help in put- Keith Kvenvolden, [email protected] sial hypotheses describing the nature and drivers of ting together a suite of theme sessions that repre- sents cutting-edge research on the general themes Jerry Mitrovica, [email protected] environmental and biotic evolution on geologic time scales, some of which involve extra-terrestrial influ- of the meeting. Theme sessions may fit squarely into Jim Kasting, [email protected] ences and exchange with Earth’s deep interior. As one of the three general themes or may cut across Jerome Gaillardet, [email protected] we clarify the processes that drive evolution of the them. They should attract a core representation from David Howell, [email protected] Earth system, we come closer to understanding our the geosciences, but should also draw in our col- Mark Patzkowsky, [email protected] origins and the future of our planet. We also learn leagues from other disciplines. Dan Schrag, [email protected] how to refine our search for habitable environments Proposals for Theme Sessions should be submitted Kelin Whipple, [email protected] and life elsewhere in the universe. electronically at the ESP2 website, and include: Fred Mackenzie, [email protected] Modern Earth System Processes will delve into 1. A brief description of the theme. Jack Farmer, [email protected] the processes that link the components of the Earth 2. A justification for inclusion in ESP2, including system across all scales of space and time. Interdis- indications that the session will draw sufficient ciplinary studies are just now beginning to elucidate abstracts and be well attended. these feedbacks through observation, experimen- 3. A list of possible invited speakers and the Second Circular tation, and modeling. These studies provide the topic they would likely discuss. November 2004 phenomenological basis for the investigation of the Theme Session Proposals must be submitted evolution and future of the Earth system. electronically and received by September 15, 2004. Earth System Futures will address important ques- If you have questions, please contact one of the Registration opens tions about the Earth’s future. Can we understand technical program chairs or any of the members of February 2005 the interactions of the Earth system well enough to the technical program committee. www.geosociety.org/esp260 http://www.esd.mun.ca/~gac/ANNMEET/annmeet.htmlAPRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 61 Ads (or cancellations) must reach the GSA Advertising using any combination of theoretical, experimental, field, courses, with their associated laboratory classes, each office one month prior. Contact Advertising Department, and seismic approaches; and (2) educate students in the semester. Position duties will include teaching two or (303) 357-1053, 1-800-472-1988, ext. 1053, fax 303- area of structural concepts and techniques. three lecture sections per semester of physical geology, 357-1070, [email protected]. Please include The University is seeking to fill this position at the earth resources, or environmental science, coordinating address, phone number, and e-mail address with all Assistant or Associate Professor level. The successful and facilitating laboratory instruction for these courses, correspondence. candidate should have an excellent demonstrated or supervising graduate teaching assistants, and assisting Per line each developing research record and the vision to establish with departmental outreach efforts. Per Line for addt’l month a strong research program in pure and/or applied struc- The successful applicant must have at least a Classification 1st month (same ad) tural geology/tectonics. The candidate must also be an master’s degree in geology, environmental science, or a excellent educator, with commitment to both undergrad- related field. Preference will be given to candidates with Situations Wanted $2.25 $1.90 uate and graduate (M.S. and Ph.D.) education. A Ph.D. prior teaching experience and to those familiar with gen- Positions Open $7.00 $6.00 degree is required for this G position. N I Salary S I and T benefits R E eral V and D geology A software D E packages. I F I Nine-month S S start A - L C Consultants $7.00 $6.00 will be competitive and commensurate with experience ing salary will range from $28,000 to $35,000 depending Opportunities for Students and future potential. on qualifications. Opportunities exist for collaboration in first 25 lines $0.00 $2.85 Initial screening of applicants will begin in Spring geo-science education research and summer teaching additional lines $1.85 $2.85 of 2004. The position will be available as early as Fall support. Web Only Ads $7.00 $6.00 2004, and the search will remain open until the position Interested candidates should send a letter of applica- live link: add $25 is filled. Applicants are encouraged to submit a com- tion, curriculum vitae, statement of teaching philosophy, plete vita/resume, statement or research and teaching and the names and addresses of three persons who may Agencies and organizations may submit purchase interests, and a list of five references, including names, be contacted as professional references to the Chair, order or payment with copy. Individuals must send phone numbers, e-mail addresses, and complete mailing Search Committee, Department of Geological Sciences, prepayment with copy. To estimate cost, count 54 addresses. Questions or requests for additional informa- Room 340 Brackett Hall, Clemson University, Clemson, characters per line, including all punctuation and blank tion may be addressed to Dr. Shankar Mitra, Chair of S.C. 29634-0919. Review of applications will begin on spaces. Actual cost may differ if you use capitals, the Structural Geology/Tectonics Search Committee, April 1, 2004, and continue until the position is filled. centered copy, or special characters. at (405) 325-4462, or [email protected]. Applications and Clemson University is an equal opportunity, affirma- nominations should be addressed to: Structural Geology tive action employer. Women and minority candidates Search Committee, School of Geology and Geophysics, are encouraged to apply. University of Oklahoma, 100 E. Boyd Street, Room 810, BRADLEY UNIVERSITY Norman, OK 73019-1008. TEMPORARY ASSISTANT PROFESSOR The University of Oklahoma is an Affirmative Action, Positions Open OR INSTRUCTOR OF GEOLOGY Equal Opportunity Employer. Women and Minorities are The Department of Geological Sciences at Bradley encouraged to apply. GLACIAL GEOLOGIST University is seeking candidates for a Temporary Full- The Department of Earth Sciences and The Climate POSTDOCTORAL RESEARCH POSITIONS Time Assistant Professor or Instructor for a one year term Change Institute of the University of Maine seek to NATIONAL CENTER FOR beginning in August, 2004 for the 2004–2005 school year. hire an entry-level tenure track Assistant Professor to EARTH-SURFACE DYNAMICS (NCED) Responsibilities: Serve as a full-time faculty mem- begin in the Fall of 2004. The opening is to fill a retire- UNIVERSITY OF MINNESOTA ber in the Department of Geological Sciences. Teach ment position, and will be in the area of Glacial and NCED has funding for several (3–6) positions for post- courses in introductory physical geology, introduc- Quaternary Geology. The successful candidate will have doctoral researchers in Earth-surface dynamics. The tory physical geology laboratory, geomorphology, and an appointment that is approximately 70% research Center’s research focus is channels and channel net- weather elements (i.e. elementary meteorology). The and 30% teaching. She/he will be expected to teach works, with a strong emphasis on linking ecology and teaching schedule would require no more than three undergraduate geology courses and develop and teach morphodynamics. preparations a semester. graduate courses in her/his specialty. He/she will be The postdoctoral researchers hired under this Qualifications: A broad background in geology with expected to advise graduate students. A completed announcement will form the nucleus of NCED’s any specialization(s) and a Ph.D. in geology or suc- Ph.D. in Geology will be required by September 1, 2004. Synthesis Group, playing a lead role in synthesizing cessful completion of a Ph.D. program except for an Other criteria include a record of publication, evidence NCED research results into models and modeling algo- accepted dissertation and a thesis defense. of commitment to funded research, and excellent teach- rithms. Quantitative proficiency and a taste for collabora- Applicants should forward a letter of application, a ing ability. Established research interests in the region tive research are essential; experience in morphodynam- current complete resume, undergraduate and graduate comprising New England, the Maritimes, and adjacent ics and/or ecology, especially with a modeling emphasis, transcripts, and three letters of recommendation to: Dr. areas will be a plus, but willingness to direct student highly desirable. Merrill W. Foster, Department of Geological Sciences, projects in the region is a must. The University of Maine Synthesis Group postdocs may be held at any Bradley University, Peoria, IL 61625, 309-677-2352, is located in a region of outstanding Pleistocene glacial NCED research institution: St Anthony Falls Laboratory [email protected]. and glaciomarine landforms and stratigraphy, complex (University of Minnesota), University of California Primary consideration will be given to applicants who land-sea level interactions, and key sections for unrav- Berkeley, University of Wyoming, Massachusetts respond by April 30, 2004. Applications will be accepted eling timing and processes of climate interactions. The Institute of Technology, or Princeton University. until the position is filled. successful candidate will have research interests in Regardless of where each postdoc is based, activities of Bradley University is an Equal Opportunity, Affirmative glacial geology such as glacial processes, glacial land- the Synthesis Group are expected to be highly collabor- Action Employer encouraging diversity. forms, Quaternary stratigraphy, dating and mapping. ative. All members of the Synthesis Group will maintain ENVIRONMENTAL GIS POSITION The Department and Institute have a tradition of strong close contact with each other and all NCED researchers TEXAS CHRISTIAN UNIVERSITY interdisciplinary interactions among geologists, glaciolo- via regular meetings and videoconferencing. Texas Christian University (TCU) invites applications for gists, paleoecologists, historians, climate modelers, and Applicants should send a CV with names of three an Assistant Professor position in Environmental GIS, anthropologists on campus, at the Maine Geological references to Rochelle Storfer, National Center for Earth beginning August 2004. The appointment will be a tenure Survey, and internationally. The successful candidate will Surface Dynamics, St. Anthony Falls Laboratory, 2 Third track position in the Department of Geology. The suc- have a demonstrated record and interest in continuing Ave S.E, Minneapolis, MN 55414. cessful candidate will liaise with the Center for Remote interdisciplinary Quaternary science collaborations. The University of Minnesota is an equal opportunity Sensing and GIS and the Institute of Environmental Applicants should send a cover letter, curriculum educator and employer. vitae, and the names, addresses, phone numbers (and Studies. Candidates must possess a strong background e-mail addresses, if possible) of three referees to: Chair, SENIOR LEVEL EXECUTIVE and track record in environmental and geoscience GIS Glacial Geologist Search Committee, Department of AMERICAN GEM SOCIETY LABORATORIES applications. Responsibilities will include building upon Earth Sciences, University of Maine, 111 Bryand Global American Gem Society Laboratories (www.agslab.com), an existing GIS/ Remote Sensing curriculum through Sciences Building, Orono, ME 04469-5790. Reviews of known for its diamond Cut Grade and Cut Grade development of introductory and advanced ArcGIS applications will begin April 16, 2004, and continue until research, is currently looking for a senior level executive courses. Other teaching duties will reflect departmental the position has been filled. For additional information, to implement growth plans, develop lab products and needs, GIS background and scientific expertise of the visit our websites at: http://www.geology.um.maine.edu/ services, and maintain AGS diamond grading standards. individual. Candidates should demonstrate an equal and http://www.ume.maine.edu/iceage/. The University Must have exceptional gemological knowledge and commitment to both teaching and research. This is of Maine is an equal opportunity/affirmative action experience, BS in Business and/or 10-15 years of man- an opportunity-rich appointment; the candidate will be employer. We seek applications from qualified women agement experience in a related field. Excellent benefits. expected to foster cross-campus collaborations, and and minorities. Drug Free Environment/EOE. Send resumes with salary bridge the link between the university and a very active As required by the Clery Act, the University of history to: [email protected] or fax (702) 255-9861. regional GIS community. Applicants should send a vita, statement of teach- Maine’s Annual Security Report includes statistics on LECTURER/LAB MANAGER IN GEOLOGY ing and research interests, and contact information for reported crimes that have occurred on or near campus, CLEMSON UNIVERSITY three references to: R.N. Donovan, Chair, Department of as well as University policy concerning campus secu- The Department of Geological Sciences in the School Geology, Box 298830, Texas Christian University, Fort rity. Copies of the Report are available on request from of the Environment at Clemson University invites appli- Worth, TX 76129. Review of applications will begin April 1 the Director of Public Safety, Mail Service, University cations for the position of Lecturer/Lab Manager in and continue until the position is filled. TCU is an AA/EEO of Maine, 5761 Keyo Public Affairs Bldg., Orono, ME Geology. This is a full-time position, with benefits, and is employer and encourages a diversity of applicants. 04469-5761, or Phone: (207) 581-4048, or on the web at renewable annually, but it is not a tenure-track position. www.umaine.edu/security. Primary duties include teaching introductory courses, STRUCTURAL GEOLOGY/TECTONICS managing teaching laboratories and materials, devel- Opportunities for Students SCHOOL OF GEOLOGY AND GEOPHYSICS oping curricula, and participating in the department’s Graduate Assistant Funding, Wesleyan University, COLLEGE OF GEOSCIENCES outreach efforts. The appointment has a starting date of Middletown, CT. The Department of Earth and UNIVERSITY OF OKLAHOMA August 15, 2004. Environmental Sciences announces a graduate assis- The University of Oklahoma invites applications and The Department of Geological Sciences has the tantship for a Master’s degree in Earth Sciences. We are nominations for a tenure-track faculty position in responsibility of providing introductory courses that fulfill a small department with history of collaborative research Structural Geology/Tectonics. The holder of this position several university science and general education require- on broad range of topics in earth and environmental is expected to (1) conduct research in structural analysis ments. Large numbers of non-science majors take these sciences. Areas of departmental expertise include earth- www.geosociety.org/esp260 http://www.esd.mun.ca/~gac/ANNMEET/annmeet.htmlAPRIL/MAY 2004, GSA TODAY GSA TODAY, APRIL/MAY 2004 61 surface processes, remote sensing, planetary geology, ties in geochemistry, hard rock petrography, karst hydrol- EEO/AA institution that values diversity in faculty, staff, geochemistry, clastic sedimentology, paleoceanography, ogy, ocean science, sedimentation and stratigraphy, and and student body. In keeping with this commitment, volcanology, structure, and tectonics. Graduates of our tectonics. Our location in central Kentucky offers an the department welcomes applications from diverse program have gone on to successful positions in Ph.D. excellent natural laboratory in the surrounding region candidates. programs, government agencies, and private industry. and in surrounding states. EKU is an EEO/AA institution The successful applicant will receive 9-month stipend that values diversity in faculty, staff, and student body. The Yellow Springs Instruments Environmental the first year and a 12-month stipend the second year, In keeping with this commitment, our department wel- PhD Fellowship. Wright State University is pleased of not less $14,181 and $18,908 respectively. Interested comes applications from diverse candidates. to announce a new YSI Environmental Sciences PhD candidates should contact: Dr. Suzanne O’Connell at Fellowship. The Research Fellowship is for $25,000 (860) 685-2263, [email protected]. Application Masters Research Opportunity. Eastern Kentucky with tuition and fee waivers. This prestigious award will information is available at: http://www.wesleyan.edu/ University. Dr. Walter S. Borowski has financial sup- be given to a highly qualified applicant accepted into ees/graduateprogram.html. port available for Master’s thesis research at the Dept. the Environmental Sciences PhD Program at WSU. of Earth Sciences, Eastern Kentucky University (www. Students may apply with either a BS or MS degree Masters Graduate Assistantships. Eastern Kentucky earthscience.eku.edu). This research involves sulfur from a relevant major (e.g., biology, chemistry, geology, University. The Dept. of Earth Sciences, Eastern extractions from authigenic sulfide minerals residing physics, toxicology, environmental health sciences). The Kentucky University (www.earthscience.eku.edu) has in deep-sea sediments, and subsequent measure- program provides a strong interdisciplinary focus both in Teaching Assistantships available for the 2004–2005 ment of sulfur isotopic composition. Students will be the course work and dissertation research, with a focus academic year for Masters students. These assistant- supported for summer research contingent on their on contaminant fate and effects in three areas of faculty ships offer 9 months of stipend support, generally for acceptance as a graduate assistant within the depart- expertise: environmental toxicology and chemistry, envi- two academic years. Students must apply for graduate ment. These assistantships offer 9 months of stipend ronmental stressors, and environmental geophysics and assistantships no later than 1 June 2004. Please contact support, generally for two academic years (please hydrogeology. Review of applications for the 2004–2005 Dr. Melissa Dieckmann, Director of Graduate Studies refer to the companion advertisement). Students must Academic Year will begin in January, 2004, and continue (859-622-1276; [email protected]) for further apply for graduate assistantships no later than 1 June until the position is filled. For more information on the information. Our department offers individual instruction 2004. Please contact Walter Borowski (859-622-1277; curriculum, faculty research areas and application mate- from a geology faculty of seven with research opportuni- [email protected]) for further information. EKU is an rials see http://www.wright.edu/academics/envsci.
GEOSCIENCE DIRECTORY
Books—Used & Rare Imaging Travel, Tours, Field Camps Recent, Rare, and Out-of-print Books. Find our catalogs Southwest Satellite Imaging. Affordable custom image GSA’s GeoVentures. Contact Edna Collis, 800-472-1988, at http://booksgeology.com for books on geoscience, processing, optimized for geologic mapping and analyses. x1034, [email protected]; www.geosociety. paleontology, mineralogy, mining history, ore deposits, 866-230-8941, [email protected]. org/geoVentures/. USGS publications, petroleum, remote sensing and metallurgy. E-mail: [email protected]. We purchase books and entire collections. MS Book Maps Writers Wanted and Mineral Company, P.O. Box 6774, Lake Charles, LA Travel Maps—The world’s largest online map Writers are invited for six (6) new volumes in the 70606-6774 USA catalog. Featuring city maps, topographic maps and Fairbridge Earth Science Encyclopedia Series, which digital maps worldwide. Call (336) 227-8300 or visit include: Stratigraphy, Geoarchaeology, Soil Science, www.omnimap.com. Lakes and Reservoirs, Paleoclimate, and Geomagnetism. Contract Labs Contributors get a free volume. Contact Prof. Rhodes W. Water-Rock-Life Labs—a comprehensive analytical Fairbridge, 420 Riverside Dr., Apt. B, New York, NY 10025, contract facility providing metal analyses on a variety Science Teaching Aids or e-mail to: [email protected]. of environmental matrices (e.g., EPA 200.8, EPA Educational products from GSA—Contact us for 6020) by DRC-ICP-MS. Laser ablation ICP-MS also educator and teacher resources! 800-472-1988, www. available. Contact Dr. Robyn Hannigan (870-972-3086; Rates geosociety.org/educate/. [email protected]) or http://www.cas.astate.edu/ $55 per month (3 lines of text) geochemistry for more information. each additional line: add $15 (max 5 lines) Summer Schools $125 for three months $250 for six months Distance Learning University of Urbino First Summer School in $475 for twelve months Paleoclimatology. July 12–20. Lectures on the Advanced Diploma in Geochemistry. Flexible study various aspects of the multidisciplinary field of Monthly GeoMart listing includes free Web posting programme offered through School of Earth Sciences, paleoclimatology. Closing date for application: April 15, www.geosociety.org/classifieds/geoMart.htm. Birkbeck, University of London, UK. CD-ROM based 2004. www.uniurb.it/ussp; email: [email protected]. materials, supported through Virtual Learning Environment. CONTACT Contact The Information Centre, [email protected]; GSA Advertising Coordinator, Ann Crawford www.londonexternal.ac.uk. Technical Services [email protected] 800-472-1988 x1053 Editing and writing service specializing in earth Geologic Photos sciences, geology, and environment. Fully web-based at www.earth-research.com. EPIC. First international archive of geologic photos. Thousands of outstanding geologic photos and satellite images plus color Landsat satellite images of geologic features. Visit www.geosociety.org/bookstore/. Select “Epic Images” from browse menu.
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