VOL. 17, No. 7 A PUBLICATION OF THE GEOLOGICAL SOCIETY OF AMERICA JULY 2007

The Gangdese retroarc thrust belt revealed

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Cover: North-south–trending ranges bounding active rifts in the Lhasa terrane of southern Tibet provide spectacular cross-sectional exposures of older, east- west–striking thrust belts. This photo looks toward the west at the Xiagangjiang Range in a remote part of the GSA TODAY publishes news and information for more than north-central Lhasa terrane. Recent studies suggest 20,000 GSA members and subscribing libraries. GSA Today that the thrust belts accommodated large-magnitude lead science articles should present the results of exciting new shortening (≥50%) during Late Cretaceous to early research or summarize and synthesize important problems Eocene northward subduction of Neotethyan oceanic or issues, and they must be understandable to all in the lithosphere beneath the southern margin of Asia. This earth science community. Submit manuscripts to science in turn implies that southern Tibet underwent significant editors Gerald M. Ross, [email protected], or crustal thickening and elevation gain prior to the Indo- Stephen Johnston, [email protected]. Asian collision. Photo by Paul Kapp. See “The Gangdese GSA TODAY (ISSN 1052-5173 USPS 0456-530) is published 11 retroarc thrust belt revealed” by Kapp et al., p. 4–9. times per year, monthly, with a combined April/May issue, by The Geological Society of America, Inc., with offices at 3300 Penrose Place, Boulder, Colorado. Mailing address: P.O. Box 9140, Boulder, CO 80301-9140, USA. Periodicals postage paid at Boulder, Colorado, and at additional mailing offices. Postmaster: Send address changes to GSA Today, GSA Sales SCIENCE ARTICLE and Service, P.O. Box 9140, Boulder, CO 80301-9140. 4 The Gangdese retroarc thrust belt revealed Copyright © 2007, The Geological Society of America (GSA). All rights reserved. Copyright not claimed on content prepared P. Kapp, P.G. DeCelles, A.L. Leier, J.M. Fabijanic, S. He, A. 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P. Kapp*, P.G. DeCelles, A.L. Leier*, J.M. Fabijanic*, S. He, INTRODUCTION A. Pullen, G.E. Gehrels, Department of Geosciences, University During the Late Cretaceous to Eocene, the convergence rate of Arizona, Tucson, Arizona 85721, USA; and L. Ding, Institute between the Indian and Asian plates exceeded 10 cm/yr (e.g., of Tibetan Plateau Research, Chinese Academy of Sciences, Patriat and Achache, 1984; Klootwijk et al., 1992; Lee and Beijing 100029, China Lawver, 1995). This convergence was coeval with northward subduction of Neotethyan oceanic lithosphere beneath south- ern Asia and the development of the Gangdese continental ABSTRACT magmatic arc in southern Tibet (e.g., Schärer et al., 1984). An The Cretaceous–early Tertiary Gangdese arc in southern Tibet angular unconformity in the Lhasa terrane between strongly is generally attributed to the northward subduction of Neo- shortened Cretaceous and older strata and overlying, weakly tethyan oceanic lithosphere prior to Indo-Asian collision. How- deformed uppermost Cretaceous to lower Tertiary volcanic- ever, the history and tectonic significance of deformation and bearing strata of the Linzizong Formation (Fig. 1) has led to sedimentation in Tibet during this time interval have remained speculation that there is a contractional (Cordilleran-style) enigmatic. We show that contractional structures and clastic orogen related to the Gangdese arc (e.g., Burg et al., 1983; rocks near the city of Lhasa can be attributed to the develop- England and Searle, 1986; Ratschbacher et al., 1992). How- ment of a northward-propagating retroarc thrust belt that was ever, the hypothetical thrust belt has not been documented active between 105 and 53 Ma. A kinematic model shows that and only parts of the expected foreland basin system have the thrust belt could have accommodated >230 km (>55%) of been recently recognized (Leier et al., 2007). N-S shortening. An episode of large magnitude (>160 km) and We present initial results of ongoing work in the Lhasa rapid (>8 mm/yr) shortening predated the onset of a magmatic region (Figs. 1 and 2). We document a retroarc thrust belt flare-up ca. 69 Ma, which is linked to removal of overthickened and foreland basin associated with the Cretaceous–early mantle lithosphere. This tectonic history implies that southern Tertiary Cordilleran-style southern margin of Asia. Our Tibet underwent substantial crustal thickening and elevation results and interpretations provide an integrated picture of gain prior to the Indo-Asian collision. the Gangdese continental margin tectonic system and shed light on the nature of the Tibetan lithosphere prior to the Keywords: Tibet, plateau, retroarc thrust belt, Lhasa terrane, Indo-Asian collision. Gangdese.

Figure 1. Tectonic map of southern Tibet modified from Kapp et al. (2003). Distribution of Paleozoic strata based on Liu (1988). BS—Bangong suture; IYS—Indus-Yarlung suture.

GSA Today: v. 17, no. 7, doi: 10.1130/GSAT01707A.1

*Kapp—e-mail: [email protected]; Leier—present address: Dept. of Geosciences, Princeton University, Princeton, New Jersey 08544, USA; Fabijanic—now at ExxonMobil.

4 JULY 2007, GSA TODAY progressively increasing rates, is indicative of a foreland basin setting (Jordan, 1995; DeCelles and Giles, 1996). The lowermost ca. 105 Ma limestones and overlying paleosol-rich strata are inter- preted to represent flexural backbulge-forebulge deposits (e.g., Dorobeck, 1995; DeCelles and Giles, 1996) that accumulated dur- ing the initial stages of retroarc foreland basin development. The age of the youngest Takena redbeds is ca. 90 Ma.

NORTH-DIRECTED THRUST FAULTS NEAR LHASA AND PENBO An E-W–striking fault interpreted to have exhumed arc and metasedimentary rocks coeval with Takena deposition is located ~12 km south of Lhasa (Fig. 2). It is subvertical and juxtaposes Paleozoic to Cretaceous (?) metasedimentary rocks to the south against lower-grade Triassic strata in the north (Kidd et al., 1988). The fault predates Indo-Asian collision; it is intruded by Paleo- cene-Eocene granites and unconformably overlain by ca. 56 Ma Linzizong volcanic rocks (Xu et al., 1985; Fig. 2). Although previ- ously interpreted to be a N-dipping thrust, we raise the possibility that it is a N-directed thrust fault (with higher-grade rocks in the hanging wall) that has been tilted southward. A stack of N-dipping thrust sheets is exposed ~15 km north of Penbo (Fig. 2). One of these thrusts is S-directed and cuts strata as young as ca. 47 Ma in its footwall (He et al., 2007), whereas the structurally highest thrust with Paleozoic strata in the hanging wall is intruded by a suite of granites that has been dated to 57– 50 Ma along strike to the west (Fig. 2). Preliminary observations suggest that the structurally highest thrust is a folded N-directed thrust (Fig. 3). Cretaceous and older strata were strongly folded prior to Linzizong volcanism. Whereas many of the folds are upright (Burg et al., 1983; Ratschbacher et al., 1992; Pan, 1993), hundreds-of-meter-wavelength overturned folds near Penbo show northward vergence (Fig. 3A). Cleavage planes in cataclas- ite within the structurally highest thrust fault zone dip more gen- tly to the north than the fault plane (indicating a top-to-the-north sense-of-shear), and asymmetric mesoscopic folds in the hanging wall show northward vergence (Fig. 3B; He et al., 2007).

THRUST FAULTS IN THE NYAINQENTANGLHA RANGE Figure 2. Simplified geologic map of the Lhasa region modified from Kidd et al. (1988) to account for our new mapping and age data. White The Nyainqentanglha Range north of Damxung (Fig. 2) exposes numbers: crystallization ages of igneous rocks in m.y. (Schärer et al., metasedimentary rocks of previously inferred Paleozoic age (Kidd 1984; Xu et al., 1985; Coulon et al., 1986; Copeland et al., 1987, 1995; et al., 1988; Liu, 1988), although recent studies suggest that some Pan, 1993; Mo et al., 2003; Kapp et al., 2005a; He et al., 2007). Schematic of these rocks may be as young as Cretaceous (Edwards and stratigraphic column for the Takena Formation is based on measured Ratschbacher, 2005; Kapp et al., 2005a). Our mapping shows that sections presented in Leier et al. (2007). metasedimentary rocks within the core of the range are regionally S-dipping and include Aptian-Albian metalimestone and >2 km of THE TAKENA FORMATION: RETROARC FORELAND overlying metaclastic rocks. A U-Pb detrital zircon age spectrum BASIN DEPOSITS for a metasandstone collected ~1.8 km tectonostratigraphically The Takena Formation consists of an ~250-m-thick lower unit above the metalimestone (630041; Fig. 2) shows prominent Early of Aptian-Albian marine carbonate parasequences that is con- Cretaceous and early Tertiary peaks (Fig. 4A). We interpret the formably overlain by an ~100-m-thick zone of stacked paleo- Cretaceous-Tertiary zircons to have been derived from the Gang- sol horizons and >2 km of upward coarsening fluvial redbeds dese arc to the south and the peak age of the youngest zircon (Fig. 2; Leier et al., 2007). Paleocurrent indicators demonstrate population (ca. 54 Ma) to provide a maximum depositional age. dominantly northwestward paleoflow (Fig. 2). The presence of Within the late Cenozoic Damxung-Jiali shear zone to the south metasedimentary clasts and abundant plagioclase and volcanic (Fig. 2; Edwards and Ratschbacher, 2005), the metaclastic rocks grains in sandstones imply derivation from the Gangdese arc and are exposed structurally beneath S-dipping Paleozoic metasedi- metasedimentary country rocks to the south (Fig. 2). The upward- mentary rocks. We suggest that the Tertiary clastic rocks were coarsening trend within the Takena Formation, combined with initially juxtaposed against the Paleozoic rocks by a S- dipping, a subsidence history of initial slow accumulation followed by N-directed thrust (Figs. 2 and 3).

GSA TODAY, JULY 2007 5 Figure 3. Cross section of the Lhasa region constructed from the simplified geological map and using unit abbreviations in Figure 2. For clarity, intrusive rocks are excluded. (A) Northward-verging folds in Cretaceous strata near Penbo. Arrows: stratigraphic facing direction. (B) Structurally highest N-dipping thrust fault north of Penbo. (C) Syncontractional, lower Eocene redbeds along the northern flank of the Nyainqentanglha Range.

interpreted to have been deposited during slip on both the N- and S-directed faults (Fabijanic, 2005). These geological relations define a triangle zone, a structure common in the frontal parts of thrust belts (e.g., Jones, 1982; Vann et al., 1986). The depositional age of the redbeds, and hence the timing of contraction, is con- strained by a U-Pb zircon date of 53 ± 2 Ma for an interbedded tuff layer (WP49A; Fig. 2) and the presence of detrital zircons of statistically indistinguishable age (4LL7; Figs. 2 and 4B). The GSA Data Repository1 includes a description of the U-Pb analytical methods and a tabulation of the U-Pb data (Table DR1).

THE PROPOSED GANGDESE RETROARC THRUST BELT A sequential restoration (Fig. 5) of the cross section of the Lhasa region (Fig. 3) shows that Late Cretaceous–Eocene contractional structures and clastic rocks in the Lhasa region formed in a north- Figure 4. Relative probability detrital zircon age plots for (A) metaclastic ward directed and propagating retroarc thrust belt and foreland sandstone and (B) redbeds within the Nyainqentanglha Range. The basin system. The largest displacement “Lhasa-Damxung thrust” peak of the youngest age population of zircons provides a maximum depositional age and likely closely approximates the depositional age. carries Paleozoic strata in the hanging wall. This thrust (1) roots Plotted ages are based on 206Pb/238U for grains <1000 Ma and 206Pb/207Pb into the subsurface south of Lhasa, (2) was passively folded into for grains >1000 Ma. Spot analyses on individual zircon grains were made an antiform between Lhasa and Penbo, (3) structurally overlies using a laser ablation, multicollector inductively coupled plasma mass horses of Mesozoic strata north of Penbo, (4) has tectonic win- spectrometer at the Arizona LaserChron Center. A tabulation of U-Pb data dows that expose footwall Cretaceous–lower Tertiary (?) redbeds and a description of the analytical methods are provided in the GSA Data between Penbo and Damxung, and (5) resurfaces in the Nyain- Repository (see text footnote 1). qentanglha Range (Fig. 3). The youngest and most northward feature of the thrust belt is the lower Eocene triangle zone along Along the northern flank of the Nyainqentanglha Range, con- the northern flank of the Nyainqentanglha Range (Fig. 3). glomeratic redbeds of previously inferred Cretaceous age are The kinematic history of the thrust belt during Takena deposi- locally exposed in the footwall of a S-dipping thrust to the south tion is unknown. At least 160 km of shortening is required to and a N-dipping thrust to the north (Fig. 2). The conglomerates (1) account for the N-S length of Paleozoic strata carried in the exhibit variable dips and intraformational unconformities hanging wall of the Lhasa-Damxung thrust, and (2) emplace (Fig. 3C), demonstrating that they are synkinematic, and are underlying horses of Mesozoic strata (Fig. 5A). This shortening

1GSA Data Repository item 2007173, tabulation of U-Pb data and description of the analytical methods, is available at www.geosociety.org/pubs/ ft2007.htm. You can also obtain a copy by writing to [email protected].

6 JULY 2007, GSA TODAY Figure 5. Proposed kinematic evolution of the Gangdese retroarc thrust belt. Unit abbreviations as in Figure 2. (A) Large magnitude and rapid N-directed shortening between ca. 90 and 69 Ma. (B) Development of hinterland ramp anticline during a phase of slower shortening rate. This deformation was coeval with the development of the basal Linzizong unconformity and widespread magmatism. White numbers and lines: speculated age distribution (in m.y.) of Linzizong volcanic rocks above the unconformity. (C) Present-day upper-crustal structure with cross-section lines from Figures 2 and 4. occurred after deposition of the youngest Takena redbeds (ca. 90 Ma) and before the onset of Linzizong volcanism near Penbo ca. 69 Ma. The length of the horses shown is the minimum required to explain the map pattern (Fig. 2) and minimizes our shortening estimate; the horses could have extended much farther south- ward beneath the Lhasa-Damxung thrust, possibly even rooting into the structurally complex zone of metasedimentary rocks in the hanging wall of the Lhasa-Damxung thrust south of Lhasa (Fig. 2). The interpretation shown equates to a shortening rate of ~8 mm/yr, comparable to that estimated for the Andean thrust belt in Bolivia (5–10 mm/yr; e.g., McQuarrie, 2002). There is no direct evidence for contraction between ca. 69 and ca. 53 Ma; however, during this time interval, arc magmatism swept northward (Fig. 6). This could have been due to shal- lowing of the subducting oceanic slab or shortening within the forearc; both scenarios are consistent with continued contraction. We suggest that between 69 and 53 Ma, slip along a S-dipping thrust in the hinterland produced a ramp anticline and passively folded the Lhasa-Damxung thrust (Fig. 5B). This slip, together Figure 6. Temporal-spatial distribution of magmatism (from 85°E to 94°E) and documented shortening (Lhasa area) in the southern Lhasa terrane. with slip along a structurally lower décollement beneath Triassic The Indus-Yarlung suture is located at 29°N. Ages compiled from Maluski strata, fed northward to thrusts that surfaced in the Nyainqentan- et al. (1982), Quidelleur et al. (1997), Harrison et al. (2000), and Wu et al. glha Range. (2004), in addition to references cited in Figure 2 caption. A hinterland ramp anticline provides a simple explanation for the regional northward dip of Triassic–lower Tertiary strata in the Penbo region (Fig. 3). Growth of this anticline was coeval with (Fig. 5B), yielding an average shortening rate of ~4 mm/yr. More deposition of the Linzizong Formation and should be recorded sophisticated interpretations to explain the structural relief in the by lateral variations in the age and thickness of Linzizong strata hinterland will likely emerge; however, we assert that three con- (Fig. 5B). In fact, the oldest Linzizong volcanic rocks dated to the clusions are robust: (1) the structural culmination between Lhasa north of the anticline forelimb are 69–59 Ma, whereas those along and Penbo grew in part coeval with Linzizong volcanism, (2) the the anticline crest in the Maqu area are ≤59 Ma (Fig. 2). Shorten- magnitude and rates of shortening before 69 Ma were substan- ing during the 69–53 Ma time interval is estimated to be ~67 km tially greater than those after 69 Ma, and (3) the retroarc thrust

GSA TODAY, JULY 2007 7 belt was not significantly disrupted during the Indo-Asian colli- sion (Fig. 5C). Remnants of the Gangdese retroarc thrust belt may be exposed over a distance of >1000 km along strike to the west of Lhasa. South of the town of Coqin (Fig. 1), Paleozoic strata are exposed in the hanging wall of a S-dipping thrust to the north and a N-dipping thrust to the south, both of which were active during the Cretaceous (Murphy et al., 1997). The Paleo- zoic strata were interpreted to core a pop-up structure between thrusts of opposing vergence. We favor an alternative interpre- tation in which the two faults form a single folded N-directed thrust that carries Paleozoic strata in the hanging wall (Fig. 1). This interpretation is consistent with the geology farther west near Shiquanhe (Fig. 1), where the Narangjiapo thrust emplaced Paleozoic strata northward over Cretaceous rocks during the Late Cretaceous (Fig. 1; Kapp et al., 2003).

DISCUSSION

Crowding and Removal of Lithosphere beneath the Gangdese Arc By ca. 105 Ma, a Cordilleran-style margin was established in southern Tibet and, from south to north, included the Gangdese (Xigaze) forearc basin (e.g., Dürr, 1996), arc, and retroarc thrust belt and foreland basin system. Between 90 and 69 Ma, rapid (≥8 mm/yr) retroarc shortening resulted in southward under- thrusting of a large volume of crust and mantle lithosphere beneath the arc (Fig. 7A). Crowding of lithosphere beneath the Figure 7. Proposed evolution of the Gangdese continental margin tectonic arc may have provided a resisting force to continued retroarc system. (A) Retroarc shortening results in underthrusting and crowding of lithosphere beneath the arc. (B) Shortening slows down in the retroarc shortening, explaining the subsequent marked decrease in short- region while it accelerates in the forearc region. Lithosphere removal ening rate. Between 69 and 62 Ma, ophiolites were obducted beneath the arc ignites a magmatic flare-up. (C) India collides, the India- onto accretionary mélange within the Indus-Yarlung suture zone Asia convergence rate drops, the Neotethyan oceanic slab rolls back, and (Fig. 1), coeval with shortening and the development of an angu- retroarc shortening ceases as shortening of Indian continental margin lar unconformity within the forearc (Fig. 7B; Ding et al., 2005). strata initiates in the Tethyan Himalaya. Ophiolite obduction required removal of upper plate mantle lith- osphere. This could have occurred through tectonic erosion by near-modern elevations by the late Eocene (Rowley and Currie, the subducting slab and/or gravitational foundering of lithosphere 2006) and certainly no later than the late Oligocene (DeCelles beneath the arc (Fig. 7B). Concomitant upwelling of astheno- et al., 2007). How much elevation was produced in this and sphere, in combination with partial melting of melt-fertile crust other regions of Tibet by contractional tectonism prior to the that was underthrust beneath the arc, can explain ignition of the Indo-Asian collision remains to be quantified. 69 Ma and younger magmatic flare-up within the Gangdese arc (Fig. 7). Similar geodynamic processes have been invoked to Demise of Retroarc Shortening, Slab Rollback, and Collision explain correlations between the tempo of retroarc shortening The cessation of major retroarc shortening at 50–55 Ma and magmatism in the Cordillera of the western United Sates marked the initiation of a southward sweep in magmatism (e.g., Ducea, 2001; DeCelles, 2004). within the arc (Fig. 6) and Indo-Asian collision in south-central Tibet (e.g., Besse et al., 1984; Zhu et al., 2005). The magmatic Development of a “Lhasaplano”? sweep is interpreted to reflect rollback of the Neotethyan oce- The proposed Gangdese retroarc thrust belt accommodated anic slab in response to a decrease in India-Asia convergence >230 km of shortening (>55%) in the Lhasa region. Crustal thick- rate as the Indian continental margin entered the trench (Fig. ening and lithosphere removal in response to this shortening may 7C) (e.g., Patriat and Achache, 1984). Major upper crustal short- have led to the development of a high-elevation “Lhasaplano” ening during the early stages of collision was localized to the (Fig. 7B). The basal Linzizong unconformity is presently a gently south in the Tethyan Himalaya (Fig. 7C; e.g., Ratschbacher et dipping surface at similar elevations across much of the Lhasa al., 1994) and to the north of the southern Qiangtang terrane terrane (Fig. 1), implying that a regional low-relief landscape was (Fig. 1; e.g., Coward et al., 1988; Horton et al., 2002; Spurlin established prior to the Indo-Asian collision. et al., 2005). The gravitational potential energy related to thick A major difference with an Andean-style margin is that crust and high elevation in the Lhasa and southern Qiangtang the Gangdese retroarc thrust belt overlapped in age with the terranes may, therefore, have been sufficient to inhibit major S-directed northern Lhasa terrane thrust belt to the north shortening in these areas and to focus contractional deforma- (Fig. 1; Murphy et al., 1997; Kapp et al., 2003, 2005b). Paleoalti- tion along its lower elevation northern and southern margins metric studies suggest that the northern Lhasa terrane achieved (e.g., England and Searle, 1986).

8 JULY 2007, GSA TODAY ACKNOWLEDGMENTS Kapp, P., Murphy, M.A., Yin, A., Harrison, T.M., Ding, L., and Guo, J., 2003, Mesozoic and Cenozoic tectonic evolution of the Shiquanhe area of western Tibet: This research was supported by National Science Foundation Tectonics, v. 22, 1029, doi: 10.1029/2001TC001332. grant EAR-0309844. The Geological Map of the Academia Sinica- Kapp, J.L.D., Harrison, T.M., Kapp, P., Grove, M., Lovera, O.M., and Ding, L., 2005a, The Nyainqentanglha Shan: A window into the tectonic, thermal, and geo- Royal Society Geotraverse (Kidd et al., 1988) was invaluable in chemical evolution of the Lhasa block, southern Tibet: Journal of Geophysical guiding our field investigations and interpretations. This paper Research, v. 110, B08413, doi: 10.1029/2004JB003330. Kapp, P., Yin, A., Harrison, T.M., and Ding, L., 2005b, Cretaceous-Tertiary shorten- benefited greatly from comments by Tom Argles, Laurent Godin, ing, basin development, and volcanism in central Tibet: Geological Society of Stephen Johnston, Gautam Mitra, David Rowley, and An Yin. America Bulletin, v. 117, p. 865–878, doi: 10.1130/B25595.1. Kidd, W.S.F., Pan, Y., Chang, C., Coward, M.P., Dewey, J.F., Gansser, A., Molnar, P., Shackleton, R.M., and Sun, Y., 1988, Geological mapping of the 1985 Chinese- REFERENCES CITED British Tibetan (Xizang-Qinghai) Plateau Geotraverse route: Philosophical Besse, J., Courtillot, V., Pozzi, J.P., Westphal, M., and Zhou, Y.X., 1984, Paleomagnetic Transactions of the Royal Society of London Ser. A. v. 327, p. 287–305. estimates of crustal shortening in the Himalayan thrusts and Zangbo suture: Klootwijk, C.T., Gee, J.S., Peirce, J.W., Smith, G.M., and McFadden, P.L., 1992, Nature, v. 311, p. 621–626, doi: 10.1038/311621a0. 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GSA TODAY, JULY 2007 9 COMMENT AND REPLY high k (Preston, 1956; Hofmeister, 2005). Consequently, deep John Perry’s neglected critique of Kelvin’s age for the interior k resembles surface values (Hofmeister, 1999). Earth: A missed opportunity in geodynamics, Philip Eng- Likewise, 20 TW for Earth’s radioactive heat generation is land, Peter Molnar, and Frank Richter, GSA Today, v. 17, neither modern nor correctly attributed. Chondritic models no. 1, p. 4–9, doi: 10.1130/GSAT01701A.1. reconcile heat flow data with radioactivity within uncertain- ties (Urey, 1956; Hofmeister and Criss, 2005). Kelvin’s famous calculations, coupled with denial of obser- vational data, impeded geoscience for ~100 yr. It is a shame to see data ignored and Perry lionized given his statement “I dislike very much to consider any quantitative problem set Anne M. Hofmeister and Robert E. Criss, Department of by a geologist.” Earth and Planetary Science, Washington University, St. Louis, Missouri 63130, USA, [email protected] REFERENCES CITED England, P., Molnar, P., and Richter, F., 2007, John Perry’s neglected critique of Kelvin’s age for the Earth: A missed opportunity in geodynamics: GSA Today, In touting John Perry, England et al. (2007) misrepresent v. 17, no. 1, p. 4–9. modern and historical efforts to understand Earth’s cooling. Hofmeister, A.M., 1999, Mantle values of thermal conductivity and a geotherm from phonon lifetimes: Science, v. 283, p. 1699–1706, doi: 10.1126/science. Perry promulgated Kelvin’s fundamental error of using 283.5408.1699. equations inappropriate for cooling of a large, finite sphere. Hofmeister, A.M., 2005, The dependence of radiative transfer on grain-size, tempera- Both plate and Kelvin-type models contain unrealistic bound- ture, and pressure: implications for mantle processes: Journal of Geodynamics, ary conditions and inputs (Hofmeister and Criss, 2005, 2006). v. 40, p. 51–72, doi: 10.1016/j.jog.2005.06.001. Perry used a surface temperature (T) of 146 °C and interior Hofmeister, A.M., and Criss, R.E., 2005, Earth’s heat flux revised and linked to thermal conductivity (k) 79 times crustal k. By comparing chemistry: Tectonophysics, v. 395, no. 3–4, p. 159–177, doi: 10.1016/ j.tecto.2004.09.006. cooling of a homogeneous infinite half-space to a thin spheri- Hofmeister, A.M., and Criss, R.E., 2006, Comment on “Estimates of heat flow from cal shell, Perry deduced that high interior k slows cooling. Cenozoic seafloor using global depth and age data” by M. Wei and D. Sandwell: England et al. agree and link high interior k to mantle Tectonophysics, v. 428, p. 95–100, doi: 10.1016/j.tecto.2006.08.010. convection. In contrast, high k makes conduction efficient Lubimova, H., 1958, Thermal history of the earth with consideration of the vari- able thermal conductivity of the mantle: Geophysical Journal of the Royal (Lubimova, 1958) and convection unnecessary. Time-depen- Astronomical Society, v. 1, p. 115–134. dent convection models (van den Berg et al., 2004) show Pertermann, M., and Hofmeister, A.M., 2006, Thermal diffusivity of olivine-group low upper mantle k retards cooling. Geodynamic research minerals: The American Mineralogist, v. 91, p. 1747–1760, doi: 10.2138/ requested by England et al. exists and shows them wrong. am.2006.2105. Preston, F.W., 1956, Thermal conductivity in the depths of the Earth: American Journal England et al. cite secondary, outdated sources for high k. of Science, v. 25, p. 754–757. Suspicious upturns giving high vibrational k at high T are Urey, H.C., 1956, The cosmic abundances of K, U, and Th and the heat balances of the proven experimental artifacts (Pertermann and Hofmeister, Earth, the Moon, and Mars: Proceedings of the National Academy of Sciences 2006). Radiative diffusion in Earth’s mantle cannot provide of the United States of America, v. 42, p. 889, doi: 10.1073/pnas.42.12.889. van den Berg, A.P., Yuen, D.A., and Rainey, E.S.G., 2004, The influence of variable viscosity on delayed cooling due to variable thermal conductivity: Physics of the doi: 10.1130/GSAT01707C.1 Earth Planetary Interiors, v. 142, p. 283–295, doi: 10.1016/j.pepi.2004.01.007.

STUDENTS: Annual Meeting Field Trip Scholarships Offered s part of the Roy J. Shlemon Meeting Awards Program, sion-sponsored field trips. This subsidy is for the first the GSA Engineering Geology Division is providing five student registrants who are valid Division members. Afunding for two students to attend GSA Annual Meet- Students: please pay the full field trip fee when you reg- ing field trips. The scholarships will cover the price of the field ister; the Geoscience Education Division will be reim- trip. You must be a student member of the Engineering Geol- burse you after the GSA meeting. Visit the Geoscience ogy Division making satisfactory progress toward your degree. Education Division Web site, http://gsaged.org/ for con- For a detailed description of this program, you can visit the tact information. Division Web site, http://rock.geosociety.org/egd/index.html The GSA Geobiology and Geomicrobiology Division and click on “Scholarships.” If you need more information, will be offering one student scholarship to cover the registra- contact Rob Larson at [email protected]. Deadline for tion costs for field trip number 403, “Cornucopia of coal and applications: 1 August 2007. coalbed gas in the Powder River Basin: From mining and The GSA Geoscience Education Division is offering utilization to methane and methanogens.” The student must US$50 scholarships for students to participate in divi- be a Geobiology and Geomicrobiology Division member in

10 JULY 2007, GSA TODAY vin’s calculation is utterly negligible with the value we adopt, and two-thirds as negligible with the value they prefer. Hofmeister and Criss write that we cite “secondary, out- dated sources” for measurements of thermal conductivity. We Philip England, Department of Earth Sciences, Oxford cite no source at all for such measurements, not even theirs, University, Parks Road, Oxford OX1 3PR, UK; Peter Molnar, because they are not relevant to our arguments. Perhaps they Department of Geological Sciences and Cooperative Institute were confused by our remark that Perry’s “quasi-conductivity” for Research in Environmental Sciences, University of Colorado, could be expressed in modern terms by the Nusselt number. Boulder, Colorado 80309, USA; Frank Richter, Department of However, even a superficial reading of the works we cite in the Geophysical Sciences, University of Chicago, 5734 S. Ellis this context would have revealed that they concern convec- Ave., Chicago, Illinois 60637, USA tion, not conduction. Their final paragraph is purely rhetorical. Kelvin did not ignore observations; indeed, his attempts to use observations In touting their views, Hofmeister and Criss (2007) misrep- to constrain the age of the Earth forced geologists to abandon resent what we wrote, what Perry wrote, and some simple their reckless drafts on the bank of time. Hofmeister and Criss’s aspects of heat transfer. dismissal of this history as Kelvin’s “impeding geoscience for Hofmeister and Criss accuse Perry of deducing that high inte- ~100 years” is not supported by serious work on the matter. rior thermal conductivity slows cooling of the Earth and us Furthermore, their attack on Perry shows a complete misun- of agreeing with that deduction. Neither accusation is correct. derstanding of a modest and conciliatory person. Perry’s reluc- Perry showed that higher interior conductivity would quicken tance “to consider any quantitative problem set by a geologist” cooling of the Earth, thereby making the present surface heat should be taken as an expression of qualms about his ability to flux compatible with a much greater age than Kelvin calcu- combine geology and physics, not as hubris. lated; we agree with Perry. We should like to take this opportunity of directing the Hofmeister and Criss appear to believe that high conductivity interested reader to Shipley (2001), who provides an excel- makes convection unnecessary. Even were this belief correct, lent description of the background to Perry’s exchanges with which it is not, it would be a non sequitur; our purpose was Kelvin in 1894–1895. to draw attention to Perry’s contention that convection in the Thanks to Patrick Wyse Jackson for drawing Shipley (2001) Earth’s interior can be modeled by a high “quasi-conductivity.” to our attention and Norman Sleep for supportive comments. They write that we requested geodynamic research on this topic. We did not, because high-Prandtl–number convection REFERENCES CITED has been understood for decades; there is no need for com- Perry, J., 1895, On the age of the earth: Nature, v. 51, p. 224–227. plicated models. Convection can maintain the Earth’s surface Shipley, B., 2001, “Had Lord Kelvin a right?”: John Perry, natural selection and the age heat flux at its observed level for gigayears, whereas thermal of the Earth, 1894–1895, in Lewis, C., and Knell, S.J., eds., The Age of the Earth: diffusion cannot. Hofmeister and Criss join Kelvin in missing From 4004 BC to 2002 AD: London, Geological Society Special Publication 190, p. 91–105. this point. Equally, their arguments about radiogenic heating in the Earth’s deep interior are irrelevant because its influence on Kel- doi: 10.1130/GSAT01707R.1 GSA Annual Meeting & Exposition 28–31 October 2007 Colorado Convention Center order to receive this US$290 scholarship. For more informa- Denver, Colorado tion, contact Stuart Birnbaum at [email protected]. The Structural Geology and Tectonics Division of GSA is also offering scholarships to student Division mem- bers to take part in GSA Annual Meeting field trips. Awards are of variable size, but can be as much as the full cost of the field trip, depending on the number and size of requests. If you are interested in applying for a scholar- ship, please send an e-mail with the following information to Bill Dunne, SGT Division chair, at [email protected]: field trip and cost; description of how the field trip com- plements thesis research (up to 1 page in length); and Come See Why More Than 6,000 Attendees Gather from across the confirmation of Division student membership. U.S. and around the World, and from Every Geoscience Discipline.

Wonderglobe. Image produced by Reto Stöckli. Used with permission from NASA. Hurricane Katrina. Photo used with permission from NASA/Jeff Schmaltz, MODIS Land Rapid Response Team. GSA TODAY, JULY 2007 11 ® GSA Names 2007 Medal and Award Recipients

GSA medals and awards for 2007 will be presented during the Presidential Address & Awards Ceremony at the 2007 GSA Annual Meeting in Denver on Saturday, 27 October, at the Hyatt Regency Denver at Colorado Convention Center.

PENROSE MEDAL Kevin C.A. Burke University of Houston

ARTHUR L. DAY MEDAL Mary Lou Zoback Risk Management Solutions

YOUNG SCIENTIST AWARD (DONATH MEDAL) Carmala N. Garzione University of Rochester

GSA PUBLIC SERVICE AWARD RIP RAPP ARCHAEOLOGICAL GEOLOGY DISTINGUISHED CAREER AWARD Mary Lou Zoback AWARD (International Division) Risk Management Solutions Norman Herz Alan Gilbert Smith University of Georgia Cambridge University GSA DISTINGUISHED SERVICE AWARD Nancy L. Carlson GILBERT H. CADY AWARD G.K. GILBERT AWARD GSA Technical Program Manager (Coal Geology Division) (Planetary Geology Division) Yildirim Dilek Andrew Cunningham Scott Maria T. Zuber Miami University Royal Holloway, University of London Massachusetts Institute of Technology Robert C. Thomas E.B. BURWELL, JR., AWARD KIRK BRYAN AWARD FOR RESEARCH University of Montana–Western (Engineering Geology Division) EXCELLENCE Fred G. Bell, British Geological Survey, and (Quaternary Geology and Geomorphology HONORARY FELLOWS Laurance J. Donnelly, Halcrow, Deanway Division) Cheng-Fa Chang Technology Centre, for Bell, F.G., and Marith Cady Reheis, U.S. Geological Survey, Chinese Academy of Sciences Donnelly, L.J., 2006, Mining and its Impact on Denver for Reheis, M.C., Sarna-Wojcicki, A.M., Maarten J. de Wit the Environment: New York, Taylor & Francis Reynolds, R.L., Repenning, C.A., and Mifflin, University of Cape Town Group, 547 p. M.D., 2002, Pliocene to middle Pleistocene lakes in the western Great Basin-Ages and SUBARU OUTSTANDING WOMAN IN GEORGE P. WOOLLARD AWARD connections, in Hershler, R., Currey, D., SCIENCE AWARD (Geophysics Division) and Madsen, D., eds., Great Basin Aquatic (Sponsored by Subaru America Inc.) Alan Levander Systems History: Smithsonian Contributions Tanja Bosak Rice University to Earth Sciences no. 33: Washington, D.C., Harvard University Smithsonian Institution Press, p. 53–108. MARY C. RABBITT HISTORY OF GEOLOGY AGI MEDAL IN MEMORY OF IAN CAMPBELL AWARD LAWRENCE L. SLOSS AWARD Arthur A. Socolow Kenneth L. Taylor (Sedimentary Geology Division) Pennsylvania Geological Survey (retired) University of Oklahoma Michael A. Arthur Pennsylvania State University JOHN C. FRYE ENVIRONMENTAL O.E. MEINZER AWARD GEOLOGY AWARD (Hydrogeology Division) CAREER CONTRIBUTION AWARD David K. Brezinski, for Brezinski, D.K., 2004, Shaun K. Frape (Structural Geology and Tectonics Division) Stratigraphy of the Frederick Valley and its University of Waterloo Warren B. Hamilton relationship to karst development, Maryland Colorado School of Mines Geological Survey, Report of Investigation 75, 101 p.

12 JULY 2007, GSA TODAY ® 2007 GSA FELLOWS Elected by Council 29 April 2007

GSA’s newly elected Fellows will be recognized at the 2007 GSA Annual Meeting Presidential Address & Awards Ceremony on Saturday, 27 October, at the Hyatt Regency Denver at Colorado Convention Center.

Sarah Andrews, Author tectonics of key regions around the world using 40Ar/39Ar ther- “Sarah Andrews is nominated for Fellowship in the GSA for mochronometry and for his diligent and insightful stewardship her contributions to GSA Foundation activities, her ideas about of the GSA Bulletin as associate editor and editor through the how to teach geology effectively, and her portrayal of geology transition years of 1997–2004.” and geologists through widely read novels and short stories.” —E. Bruce Watson —Michele Aldrich H. Allen Curran, Smith College Jonathan D. Arthur, Florida Geological Survey “Al Curran is a masterful carbonate sedimentologist, paleon- “Jonathan Arthur is being nominated for Fellowship in the tologist, and teacher. His publications number over 100 articles, GSA as a result of his efforts in conducting research aimed at books, book chapters, and guidebooks extending back over 30 the protection of Florida’s groundwater and determining the years. He has trained several generations of geologists, impart- water/rock interactions during aquifer storage and retrieval ing to each his distinctive scientific rigor, deep curiosity, and cycling. Also, his efforts in administering programs and profes- diversity of ideas.” sional organizations support his nomination.” —Mark Allan Wilson —Thomas M. Scott Larissa F. Dobrzhinetskaya, University of California Jean H. Bédard, Geological Survey of Canada at Riverside “A distinguished petrologist and geochemist, he has applied a “Larissa Dobrzhinetskaya is nominated for her significant combination of mapping, petrology, mineral chemistry, numer- contributions in characterization of nanoscale inclusions in ical modeling, and experimental simulation to the understand- microdiamonds from ultrahigh-pressure metamorphic terranes ing of the genesis and evolution of oceanic and continental and in experimental modeling the fate of continental materials crusts and mantle of eastern North America, from the Archean at subduction channels. Her research triggered a synergy of to the present, discovering new petrogenetic mechanisms and research in mineral physics and provides new insights of conti- disproving long-held hypotheses and dogmas.” nent subduction, collision, and mantle dynamics.” —John F. Riva —Juhn G.G. Liou Brian Berkowitz, Weizmann Institute of Science, Israel Rebecca J. Dorsey, University of Oregon “Brian Berkowitz has earned a worldwide reputation as “Becky Dorsey is nominated for her major contributions to an influential leader in subsurface hydrology. He has made understanding the history and processes in many critical areas critical, diverse contributions to conceptual understanding and of the Pacific–North America plate boundary. Becky is a leader mathematical description of fluid flow and chemical transport in research in structurally complex sedimentary basins along processes in heterogeneous geological media. His research is based on both innovative theory and laboratory experiments.” both young and ancient plate margins.” —Steven M. Gorelick —Paul J. Umhoefer

Alan R. Carroll, University of Wisconsin–Madison Barbara Lee Dutrow, Louisiana State University “Alan Carroll has made fundamental contributions to our “Barb Dutrow is an accomplished and widely published understanding of continental depositional systems through his researcher and educator in the fields of mineralogy and meta- integration of the wide range of tectonics and basin analysis morphic petrology. Her research on heat and mass transport in with sedimentology, stratigraphy, geomorphology, and organic heterogeneous porous media and study of thermal and chemi- and inorganic geochemistry. He is widely cited, active in the cal effects of fluids on metamorphic genesis is widely recog- Limnogeology Division, and his students become confident, nized as innovative and influential.” creative researchers.” —Ren A. Thompson —Kevin M. Bohacs Judith E. Fierstein, U.S. Geological Survey, Menlo Park Elizabeth J. Catlos, Oklahoma State University “Judy Fierstein is known for her comprehensive publications Elected to Fellowship as the 2006 GSA Young Scientist on volcano geology and physical volcanology of pyroclastic Award–Donath medalist. deposits in Alaska, the Cascades, and the Andes. Her research forms the basis for hazard assessment at several major volcanic Peter A. Copeland, University of Houston centers. Judy effectively communicates her enthusiasm for vol- “I nominate Peter Copeland of the University of Houston for canology to K–12 students and the public.” his sustained and strategic contributions to understanding the —Charles R. Bacon

GSA TODAY, JULY 2007 13 Katherine H. Freeman, Pennsylvania State University in training young geologists, first at Duke University and “Katherine Freeman has made lasting contributions to the currently at Syracuse University.” fields of organic and stable isotope geochemistry as a world- —Marion E. Bickford renowned innovator in the use of compound-specific stable isotopes to solve geologic problems. Her work on carbon and Shu-Guang Li, Michigan State University other isotopes has elucidated the evolution of environment “Shu-Guang Li is nominated for GSA Fellowship because of and life over geologic time.” his significant contributions in the fields of stochastic analysis —Lee R. Kump and modeling of groundwater flow and contaminant transport in complex groundwater systems. Of particular interest is the Paul H. Glaser, University of Minnesota modeling software Interactive Ground Water (IGW) that is well “For over 30 years, Paul H. Glaser has led research initiatives suited to enhancing learning about such topics.” on the linkages among ecology, geochemistry, geology, and —You-Kuan Zhang hydrology of large peatlands. This leadership record, coupled to numerous intellectual contributions, serves as a template for Xian-hua Li, Guangzhou Institute of Geochemistry, China how multidisciplinary research in the earth and biological sci- “Xian-hua Li is nominated for a GSA Fellowship for his sig- ences can be successfully done.” nificant contribution to our understanding of the geodynamic —Donald I. Siegel evolution of the Western Pacific region, particularly through his excellent work on the petrogenesis of magmatic rocks in Ethan L. Grossman, Texas A&M University the South China region using isotope geochronology and geo- “Ethan Grossman has contributed to geology through pio- chemistry.” neering research in stable isotope geochemistry and its applica- —Zheng-Xiang Li tion to paleoecology, aquifer, and groundwater chemistry and Late Paleozoic climate. His professional activities include orga- Jian Lin, Woods Hole Oceanographic Institution nizing numerous symposia, invited presentations, serving on “Jian Lin is nominated as a GSA Fellow for his innovative, editorial boards, and membership on the Internal Coordinating significant, and continuing contributions to the understanding Committee of CHRONOS.” of global ocean ridge processes and earthquake interactions.” —Robert J. Stanton —Yaoling Niu

Sandra Herbert, University of Maryland–Baltimore County Hui Hai Liu, Lawrence Berkeley National Laboratory Elected to Fellowship as the 2006 GSA Mary C. Rabbitt His- “Hui Hai Liu has used his broad interdisciplinary training tory of Geology awardee. to make fundamental contributions to variable density flow in porous media, fractal-based conceptualization of subsur- Daniel K. Holm, Kent State University face heterogeneity, flow and transport in unsaturated fractured “Daniel K. Holm is being recognized for his productive and rock, and, most recently, an understanding of scale-dependent innovative research on the tectonic and thermal history of con- matrix diffusion in fractured rock.” tinental crust, his success as a teacher, and his active participa- —Fred J. Molz tion in other activities within the profession.” —William R. Van Schmus Mian Liu, University of Missouri–Columbia “Mian Liu is nominated for his significant contribution to geo- Randall J. Hunt, U.S. Geological Survey, Middleton, Wisconsin dynamic modeling of geological and geophysical processes, “Randy Hunt is cited for his work on the role of ground- including continental tectonics, mantle dynamics, magmatism, water in wetland processes, wetland restoration, and creation. and metamorphism.” He is also a leader in the groundwater modeling community, —Youxue Zhang particularly in bridging finite difference modeling with analytic element modeling and the application of inverse models.” Kenneth G. MacLeod, University of Missouri–Columbia —Mary P. Anderson “For engaging and innovative teaching across the curricu- lum and for innovative and scholarly research in the fields of Yukio Isozaki, University of Tokyo paleoclimatology and mass-extinction events, Ken MacLeod is “Yukio Isozaki is nominated for his revolutionary finding of nominated for GSA Fellow.” fault-bounded thin chert-turbidite sequences in Japanese and —Carol M. Wicks many other accretionary complexes, new interpretation of tec- tonic evolution of Japan, identification of the oldest bacteria on Peter J. Mehringer, Washington State University (retired) Earth (3.5 Ga) in W. Australia, and the ‘Plume Winter’ hypoth- Elected to Fellowship as the 2006 GSA Rip Rapp Archaeo- esis for Paleozoic-Mesozoic mass extinction.” logical Geology awardee. —Juhn G.G. Liou Marli B. Miller, University of Oregon Jeffrey A. Karson, Syracuse University “We recognize Marli Miller for her well-documented and “Jeffrey A. Karson, a structural geologist and tectonicist beautifully illustrated publications on the geology of the Death whose contributions are focused on understanding exten- Valley region, particularly the Black Mountains, and for her sional and transform fault environments, ophiolite assem- continued endeavor to increase public awareness of geology, blages, and modern oceanic rift environments, has pub- especially through geophotography.” lished 121 papers since 1978. He has been actively engaged —Darrel S. Cowan

14 JULY 2007, GSA TODAY David R. Montgomery, University of Washington This work has provided key insights into the links between Elected to Fellowship as the 2006 Kirk Bryan Award for deformation, fluid pressure, and the earthquake cycle.” Research Excellence recipient. —Demian M. Saffer

John W. Morse, Texas A&M University Edward L. Simpson, Kutztown University “John W. Morse has defined the field of the physical chemistry “Edward Simpson has made outstanding contributions to our of calcium carbonate in seawater and the controls on the carbon- understanding of Earth’s history and to the training of the next ate compensation depth in the ocean. He has distinguished him- generation of geoscientists. He has been especially success- self in the application of laboratory kinetic and thermodynamic ful at inspiring undergraduate college students to pursue field data to the solution of important geologic problems.” studies of sedimentary rocks.” —Fred T. Mackenzie —David B. Loope

Tina M. Niemi, University of Missouri–Kansas City Sigmund Snelson, Exploration consultant (retired) “Tina M. Niemi applies her expertise in active tectonics and “Sig Snelson’s contributions to geology include major pub- paleoseismology to evaluating earthquake hazards in Califor- lications that have clarified understanding of the thin-skinned nia and the Middle East, where she also completes geoarchaeo- nature of the Appalachians and the existence of major alt logical studies that advance our understanding of interactions nappes in the Gulf of Mexico. Additionally, he has encour- between human activities and natural events. She is currently aged publications from the private sector and has been active serving as editor of Geology.” in AAPG and GSA community affairs.” —Karen Grove —John H. Howard Nora Noffke, Old Dominion University “Nora Noffke’s studies of the earliest life on Earth have revealed Marios Sophocleous, Kansas Geological Survey a new group of sedimentary structures created by microbial mats “Marios Sophocleous is recognized for his world-class research in siliciclastic marine paleoenvironments. She is pioneer of the and leadership in areas of groundwater resource sustainability actualistic approach in studying early Archean life. If we find fos- and recharge and vadose zone processes, and for his extraordi- sils on Mars, they will probably be Nora’s microbial mats.” nary record of service to the profession of hydrogeology.” —Donald J. Swift —Frank W. Schwartz

Lisa E. Park, University of Akron Abraham E. Springer, Northern Arizona University “Nomination for excellence in lacustrine paleontology research, “Abe Springer has distinguished himself as an expert on service to the Paleontological Society and GSA, cofounding of groundwater flow in the Colorado Plateau and on the role of the GSA Limnogeology Division, public service for promoting groundwater in sustaining wetland, spring, and stream ecosys- the teaching of evolution in the classroom, the planning of col- tems. He has rendered significant service to GSA and other pro- lege geology programs, and the encouragement of students.” fessional organizations and has mentored numerous students.” —Elizabeth H. Gierlowski-Kordesch —Alan E. Fryar

Christopher J. Poulsen, University of Michigan John P. Szabo, University of Akron “For extraordinary accomplishment in combining climate “John Szabo is a prominent glacial geologist with an exten- model simulations with paleoceanographic and paleoclimatic sive bibliography, particularly related to northern Ohio region. data to achieve novel reconstructions of ancient climate and to He has sustained contributions to both the professions and to improve understanding of the dynamics of climate change on the public. He chaired the most successful North-Central GSA Earth, in publication of the results of this important research, [Section] Meeting both in quality and number of attendees at and in nurturing and training of young scientists.” the University of Akron in 2006.” —Philip A. Meyers —L. Lynn P. Chyi

Karsten Pruess, Lawrence Berkeley National Laboratory “John P. Szabo is an outstanding teacher, researcher, and Elected to Fellowship as the 2006 O.E. Meinzer awardee. administrator. During his years as a GSA Member since 1984 he has supported GSA and has participated in many GSA activi- Frank M. Richter, The University of Chicago ties. John recently was chair of the outstanding and financially Elected to Fellowship as the 2006 Arthur L. Day medalist. successful GSA North-Central Section Meeting in Akron, Ohio, in 2006.” Benjamin J. Rostron, University of Alberta–Edmonton —Robert F. Diffendal Jr. “Ben Rostron has conducted seminal work on the hydro- geology of the sedimentary basins. His use of environmental iso- Harold J. Tobin, University of Wisconsin–Madison topic tracers and fluid pressures to assess the formation of anom- “Harold Tobin holds the unique position of co-chief project alous pressures and transient flow patterns is truly remarkable.” scientist for the Nankai Trough seismogenic zone experiment, —Mark A. Person which is arguably the most ambitious project ever attempted in marine geology. Tobin’s interdisciplinary research exper- Elizabeth J. Screaton, University of Florida tise ranges from fault-zone dynamics to structural geology, “Elizabeth Screaton is nominated for GSA Fellowship on the borehole geophysics, and elastic-geotechnical properties of basis of her pioneering contributions in quantifying permeability, marine sediments.” heat transport, and fluid flow within convergent margin systems. —Michael B. Underwood

GSA TODAY, JULY 2007 15 Ralf Topper, Colorado Geological Survey Elected to Fellowship as the 2005 GSA E.B. Burwell Jr. awardee. Thomas R. Watters, Smithsonian Institution “Tom Watters has made significant contributions to the under- standing of the tectonic history of Mars and Mercury. Using comparisons with terrestrial compressional features, as well as topographic and imaging data for the planets, his work has documented the role of large-scale compressional tectonism.” —Ted A. Maxwell

Gregory R. Wheeler, California State University–Sacramento “Wheeler’s research focuses on geoscience education and the geology of California. He teaches geology at the California State University, Sacramento, is their director of general educa- tion, improves the awareness of earth sciences in California schools, serves the National Association of Geoscience Teach- Seeking EMPLOYMENT ers’ (NAGT) programs, and advises the CSUS Foundation.” in the geosciences? —Ian D. MacGregor Steven F. Wojtal, Oberlin College “Steven Wojtal is nominated to be a Fellow of GSA for his excellence in research and publication in the field of structural geology, his contributions to teaching and mentoring under- graduate students over three decades, and his service to the geologic community as an excellent reviewer and editor.” —Gautam Mitra

Salutations to GSA’s 100-Year-Old Member Senior Fellow Victor Vacquier, of La Jolla, California, will be celebrating his centennial this year. GSA extends its best wishes and proudly honors his 50-plus years of membership.

EMPLOYMENT SERVICE CENTER

GSA is proud to offer • A year-round online applicant database • Job postings • Interview services at the GSA Annual Meeting in Denver, 28–31 October 2007 GSA Presidential Address

GSA MEMBERS: & Awards Ceremony You may post your résumé online for FREE! Centennial Ballroom Take advantage of the secure GSA Employment Hyatt Regency Denver at Colorado Convention Center Service Center Web resource found at https:// Saturday, 27 October 2007, 7–9 p.m. rock.geosociety.org/employmentService/ index.asp and enter your résumé today! Reception to follow

16 JULY 2007, GSA TODAY THANKS FOR YOUR MEMBERSHIP!

GSA Celebrates New 50-Year Members for 2007 GSA salutes the following Members and Fellows for their 50-year membership to GSA. We appreciate their dedication and loyalty to GSA for all these years! The following lists only those Members and Fellows who are celebrating their 50-year membership anniversary in 2007. Asterisks indicate GSA Fellows.

John B. Adams* Horace G. Goodell* Lawrence E. Mannion Betty Ann Lindberg Skipp* Walter A. Anderson* Philip Grubaugh Alistair W. McCrone* James Edward Slosson* Clifford A. Balster* Richard D. Hagni* Donald Paul McGookey* James Donaldson Smith* Charles A. Baskerville* William B. Hall* Andrew McIntyre* Archibald M. Stalker* William A. Bassett* William W. Hay* Betty M. Tinklepaugh Miller* Jean-Daniel Stanley* Edward Scudder Belt* C.R.B. Hobbs Jr. Steven D. Mitchell John Harris Stewart* Milford J. Benham Leslie Vincent Illing* Ralph Moberly* Rowland W. Tabor* William Alfred Berggren* Herbert Orin Ireland* John D.A. Mollard* Manik Talwani* Charles W. Blount Charles W. Jennings* Cherukupalli E. Nehru* William H. Taubeneck* Alfred E. Boerner Blair F. Jones* Arthur E. Nelson* Spencer R. Titley* Harold F. Bonham Jr.* Paul F. Karrow* Richard L. Nielsen* James R. Underwood Jr.* Carl O. Bowin* John P. Kempton* Matthew H. Nitecki* Joseph A. Vance* Allen S. Braumiller Frank H. Kilmer John S. Owens Glenn S. Visher* John Dallas Bredehoeft* Ross L. Kinnaman Russel A. Peppers* Roland von Huene* Reginald Peter Briggs* James R. Kramer* Ralph M. Perhac* John R. Wilson Henry S. Brown* Dale Curtiss Krause* Lucian B. Platt* John W. Winchester John George Cabrera* Hulbert A. Lee* James C. Ratte* Donald U. Wise* John P. Crawford Elroy P. Lehmann* Charles B. Reynolds Robert S. Yeats* Harry M. Dahl* George W. Leney James A. Roddick* Lynn A. Yehle Hugh White Dresser Tom H.W. Loomis* Frank Royse* Norbert Edmund Faltyn Charles F. Lough Meyer Rubin* Oscar J. Ferrians* James D. Lowell* Henry Philip Schwarcz* William Lawrence Fisher* Edward T. Luther* Eugene M. Shearer Richard S. Fiske* Richard J. Lutton Barry D. Shelkin ® Pedro Antonio Gelabert* John Ross Mackay* Richard A. Sheppard*

GSA Celebrates 25-Year Members for 2007 GSA salutes the following Members and Fellows for their 25-year membership to GSA. We appreciate their dedication and loyalty! The following lists only those Members and Fellows who are celebrating their 25-year membership in 2007. Asterisks indicate GSA Fellows.

Mark E. Ander Paul J. Boison Erica Bratman Cerny Garrett A. Day Craig M. Ashbrook Samuel A. Bowring* Habte Giorgis Churnet David A. Dellinger Brian F. Atwater* Austin E. Boyd Millard F. Coffin Justin V. Devery William I. Ausich* G. Robert Brakenridge* David G. Coles William J. Devlin Palmer K. Bailey Patrick W. Brock Radu R. Conelea Douglas B. Dickey Edward A. Banaszek Jr. Robert A. Brozdowski Douglas E. Connell Tammy Dickinson William S. Bartels Arthur B. Busbey Marc R. Connolly John A. Diemer Mark D. Barton* Steven K. Campbell Susan Howes Conrad Yildirim Dilek* Mark A. Beeunas Michael L. Capps Mark N. Corbett David R. Dockstader Thomas M. Berg* Michael C. Carpenter John P. Craddock* Clifford H. Dodge David A. Bero Stephen J. Carter Robert E. Crippen David J. Doherty Bruce J. Bilodeau Kerry D. Cato* Stanley L. Cunningham Anna M. Domitrovic Robert P. Blauvelt C. Blaine Cecil Matthew Davidson Robyn Wright Dunbar

GSA TODAY, JULY 2007 17 Raymond G. Mueller John N. Seitz You’ll find a complete list of Members and Fellows Samuel B. Mukasa* James R. Shannon who have surpassed the 50-year mark at www. Rosalind Munro Albert W. Shultz geosociety.org/grants/. C.H. Murrish Bruce S. Sibbett Visit GSA’s 2007 Annual Meeting Hall of Fame at R. Damian Nance Gary B. Sidder the Colorado Convention Center 26 October through William E. Nellist Bruce M. Simonson* 31 October to view larger-than-life banners honoring Gregory A. Nethery Robert Smalley the new 25- and 50-year Members (celebrating their Jay S. Noller Cathlee Smith anniversaries this year), and be sure to congratulate Constance J. Nutt Janet M. Sowers those you might see at the meeting! Jean M. Olson Joann M. Stock Glenn R. Osburn Shiro Tamanyu Karl S. Osvald Vatche P. Tchakerian 25-Year Members (continued) George Ross Pafumi Jeffrey H. Tepper Terry L. Pavlis* Stephen M. Testa* Ronald J. Echols Norvel R. Johnson English C. Pearcy Robert D. Townsend Allan A. Ekdale Theodore D. Johnson Lucille A. Piety Kathy Goetz Troost* Edward D. Elkins Richard A. Kerr* John C. Pitlick Stephen J. Urbanik Dale L. Erlandson Richard M. Kettler David Ray Potter Ben A. van der Pluijm* Karl V. Evans Kathryn C. Kilroy Lee S. Potter David A. Vanko Carol A. Evenchick* In-Soo Kim Anthony R. Prave Nancy D. Vaughan James E. Faulds James A. Kipp Wayne R. Premo Jan Veizer* Malcolm S. Field Margaret A. Klute Libby M. Prueher Timothy J. Vogt Michael A. Fisher* William S. Kowalik Ernest R. Rahaim Lloyd L. Wall Raymond C. Fletcher Bart J. Kowallis* Kelvin W. Ramsey Wesley K. Wallace Andrew J. Flurkey T. Matthew Laroche Mark K. Reagan Mary-Camilla Wallis Jeffrey Y. Foley Robert A. Larson* Margaret N. Rees* Lynn M. Walter* John H. Fournelle Timothy F. Lawton* Stephen J. Reynolds* Amy Schoner Wandless John M. Fowler Aaron R. Liesch James G. Rigby David B. Ward Grant Garven* Enrique Linares Nancy Riggs Michael Fred Weber Alexander E. Gates* Steven R. Lipshie John B. Ritter Bruce S. Wedgeworth* John W. Geissman* Thomas J. Lochen Michael R. Rosen Rodney J. Weick Michael J. Gerdenich Allen Lowrie Roberta L. Rudnick* James L. Welsh Richard G. Gibson Allan Ludman* Joaquin Ruiz* Craig M. White Gary H. Girty* Karen Lund Margaret E. Rusmore* Don A. Williamson Stephen C. Godfrey John H. Lyle Delfino C. Ruvalcaba-Ruiz* Grant C. Willis Laurel Pringle Goodell Greg H. Mack* Paul T. Ryberg Laurence M. Wilson John W. Goodge* Harmon D. Maher Jr. * H. Sakai Michael B. Winter John P. Grotzinger* Micheal R. Maitland James P. Salisbury Michael A. Wise Anne M. Grunow* Jon J. Major* George J. Saucedo Richard D. Woodsmith Ann I. Guhman Bernard Markunas Andrew D. Schedl Michael A. Young Bruce Handley David J. Marsh Paul G. Schmidt* Robert W. Zei Vicki L. Hansen* Stephen J. Martel* Joel D. Schneyer Peter K. Zeitler Tekla A. Harms* Robert G. Marvinney* David Alan Schroeder Robert A. Zielinski Ronald A. Harris Larry G. Mastin Patricia O. Seaward Edward J. Zofchak Richard T. Haworth* Jeffrey A. May Lynn D. Haynes James P. McCalpin Friedrich Heller Charles Merguerian Zoltan Hershkowitz Peter M. Mesard GSA Fellows! Beverly L. Herzog Ellen P. Metzger If you see the names of deserving Members on these Julie K. Hewlett Fredrick W. Metzger lists who have yet to be elevated to GSA Fellowship, Gregory T. Himes Christopher V. Metzler please follow up on your duty to nominate these Kurt C. Hinaman Kimberlee W. Millberry- deserving geoscientists. Keep GSA Fellowship strong Charles W. Hoffman Horan and vibrant by sending in your nominations today! John P. Hogan* Grant F. Miller Guidelines and nomination forms are at www. Thomas D. Hoisch Kenneth G. Miller* geosociety.org/members/fellow.htm. Questions? Please David S. Holland Zoeb Mogri e-mail [email protected] or call +1-800-472-1988 Wendel J. Hoppe Joachim Mohn ext. 1028 or +1-303-357-1028. Stephen D. Hurst John T. Morehouse Barbara E. John* Cary L. Mrozowski

18 JULY 2007, GSA TODAY 2007 GSA RESEARCH GRANT RECIPIENTS

The GSA Committee on Research Grants met at GSA Headquarters in Boulder, Colorado, on Saturday, 24 March 2007, and awarded US$529,188 to 246 graduate students. The committee also selected ten alternate candidates in the event that any grantees return all or part of their funds due to a change in their research project or receipt of funds from another source. The eighteen committee members for 2007 were Bruce Simonson (Chair), Laurie Brown, Allen Dennis, Katherine Cashman, Amy Draut, Andrew Gombos, Stephen Harlan, Hope Jahren, Vincent Matthews, Joseph Meert, Lina Patino, Lisa Pratt, Dibyendu Sarkar, Sheila Seaman, Mark Steltenpohl, Lisa Stillings, Sally Sutton, and Timothy White.

2007 Student Research Grant Statistics 2007 Partial GSA Foundation Funding

Total proposals received 474 Harold T. Stearns Award Fund $3,000 Total proposals funded 246 Lipman Fund $5,500 Total dollars awarded US$529,188 Blechschmidt Award $1,100 Average award US$2,151 Cox Award (Geophysics Division) $1,200 Dillon Alaska Award $2,800

2007 Partial List of Funding Sources Reed Research Award $1,900 (all funds are in U.S. dollars) Sisson Research Award $2,300 Minority Fund $1,900 Joseph T. Pardee Memorial Fund $235,000 Hydrogeology Division Award $2,500 Partial GSA Funding $235,000 Montagne Fund $600 Research Fund $6,000 Geophysics Division (to augment Cox Award) $1,050 GeoStar $8,800 Sedimentary Geology Division Award $1,000 Curtis Fund $5,000 Structural Geology and Tectonics Division Award $3,600 Ross Fund $4,800 Geophysics Division Grant $250 Wanek Fund $3,000 Total Division Funding $5,900 Snavely $1,500 Unrestricted $53,500 Total National Science Foundation Funding* $173,900 Terman (to be awarded in October) $5,000 *NSF grant matched at least two to one by GSA and GSA Foundation. Available at the GSA Bookstore Special Paper 413 GSA Sales and Service Earth and Mind: How Geologists Think and P.O. Box 9140, Boulder, CO 80301-9140, USA Learn about the Earth +1-303-357-1000, option 3 edited by Cathryn A. Manduca and toll-free: +1-888-443-4472 • fax: +1-303-357-1071 David W. Mogk SPE413, 188 p., ISBN-10 0-8137-2413-9; ISBN-13 978-0-8137-2413-3 $60.00, member price $42.00 www.geosociety.org/bookstore/

GSA TODAY, JULY 2007 19 Æ Erik A. Sperling, Yale University, for “Homology of Outstanding Mention 2007 biomineralization in the Lophotrochozoa.” Æ Elizabeth K. Thomas, University of Buffalo–SUNY, for The committee recognized 20 of the proposals to be “Global warming in light of past millennia: A multiproxy of exceptionally high merit in conception and presentation. lacustrine study of climate in northeastern Arctic Canada.” Æ John E. Volkmer, University of Arizona, for “Uplift in v central Tibet prior to the Indo-Asian collision?” Æ Melissa Wolfe, University of Kansas, for “Calibration of Æ Zachary S. Casey, University of Kansas, for “The Cerro rutile (U-Th)/He thermochronology: Assessing the ther- Coso fault, a study of strain transfer across the Garlock mal evolution of the KTB drill hole, Germany and adja- fault, southeastern California.” cent Bohemian Massif.” Æ William E. Childers, University of California at Los Angeles, for “Drainage and morphological development of the Santa Monica Mountains and its implications for 2007 Specialized Awards paleoseismicity in the greater Los Angeles area.” Æ Kristen L. Cook, Massachusetts Institute of Technology, The committee selected recipients of the specialized for “Cenozoic normal faulting on the eastern margin of awards named in honor of the donors or as memorials to the Tibetan Plateau.” former Society Members. Æ Colin Cooke, University of Alberta, for “Lake sediment v reconstructions of atmospheric mercury pollution from the South American Andes.” GRETCHEN L. BLECHSCHMIDT AWARD Æ Nicole L. Cox, Brigham Young University, for “Quater- nary sea-level and tectonic uplift patterns revealed from The Gretchen Louise Blechschmidt Award Fund was estab- emergent coral terraces of Timor-Leste.” lished for women in the geological sciences who have an inter- Æ Amalia Doebbert, University of Wisconsin–Madison, for est in achieving a Ph.D. in the fields of biostratigraphy and/or “U/Pb and Hf isotope provenance of detrital zircons from paleoceanography; sequence stratigraphy analysis, particularly the Gualala Basin, California.” in conjunction with research in deep-sea sedimentology; and Æ James M. Eros, University of California at Davis, for a career in academic research. The 2007 recipient is Lauren “Major late-Paleozoic climate transitions in paleotropical C. Neitzke, Rutgers University, for “Variations in the vertical records: Donets Basin, Ukraine.” structure of the ocean over the past 18 kyr on Eirik Drift: Æ Elizabeth M. Fein, Kent State University, for “Flow fabric Implications for climate and ocean circulation.” determination of two Mesoproterozoic midcontinent rift JOHN T. DILLON ALASKA RESEARCH AWARD dike swarms, northeastern Minnesota.” Æ Logan Hansen, Montana State University, for “Experi- The John T. Dillon Alaska Research Award is in honor of the memory of Dillon, who was particularly noted for his radio- mental studies using supercritical CO2 to challenge brine aquifer reservoir rocks from the Powder River Basin, WY metric age-dating work in the Brooks Range, Alaska. Two and SD.” areas that serve as guidelines for selection of the awardee are Æ Katherine Johanesen, University of Southern California, field-based studies dealing with the structural and tectonic for “Thermal signatures of incremental pluton development of Alaska and studies that include some aspect emplacement in the host rock: Application to the of geochronology (either paleontologic or radiometric) to pro- Fangshan Pluton, China.” vide new age control for significant rock units in Alaska. The Æ Jackie Langille, Central Washington University, for “A 2007 recipient is Michael Howley of the University of New geologic test of a middle crustal channel flow model; Hampshire for “A Holocene glacial chronology from the cen- Mabja Dome, southern Tibet.” tral Alaska Range using in situ-produced cosmogenic Be-10 Æ Leila Marzeki, University at Buffalo–SUNY, for “Tracking and C-14.” lava lake fluctuations at Villarrica Volcano, Chile.” ROBERT K. FAHNESTOCK AWARD Æ Scott A.D. McBride, University of Arizona, for “Basin anal- The Robert K. Fahnestock Award honors the memory of ysis and tectonic setting of the Salta Rift, NW Argentina.” Fahnestock, a former member of the Research Grants Com- Æ Shahnewaz Mohammad, University of Nevada–Reno, mittee, who died indirectly as a result of service on the com- for “Geochemical cycling of naturally occurring arsenic in mittee. The grant is awarded for the best proposal in sedi- the Humboldt River Basin (HRB), northern Nevada.” ment transport or related aspects of fluvial geomorphology, Æ Rachel Potter, University of Maryland, for “Diffusion of Fahnestock’s field. The 2007 recipient is Daniel D. Cadol of oxygen and lithium isotopes at a contact between the Colorado State University for “Wood loading in neotropical for- Bushveld and metasediments: Implications for diapiric ested headwater streams.” rise of the Phepane Dome.” Æ Kevin D. Robinson, University of Pittsburgh, for “The LIPMAN RESEARCH AWARD validation of diffuse reflectance spectroscopy as potential The Lipman Research Fund was established in 1993 and is sup- chlorophyll—an indicator in northern Mongolian lake ported by gifts from the Howard and Jean Lipman Foundation. sediments.” The purpose of the fund is to promote and support student

20 JULY 2007, GSA TODAY research grants in volcanology and petrology. The president of the Lipman Foundation, Peter W. Lipman, was the recipient of a GSA research grant in 1965. The 2007 recipient is Dan- iele McKay of the University of Oregon for “Explosive basaltic eruptions in arc and backarc settings.” BRUCE L. “BIFF” REED SCHOLARSHIP AWARD IS ALSO ONLINE The Bruce L. “Biff” Reed Scholarship Fund was established to To view GSA Today online, go to provide research grants to graduate students pursuing studies on the tectonic and magmatic evolution of Alaska primarily, www.gsajournals.org and click on and also can fund other geologic research. The 2007 recipient “Online Journals” then on the link above is Daniel Shugar of Simon Fraser University for “Large cata- the GSA Today cover. You can also view back strophic landslides onto glaciers, Alaska Range and St. Elias Mountains.” issues through the “Archives” button.

ALEXANDER SISSON RESEARCH AWARD Access to GSA Today online is free. Family members of Alexander Sisson established a fund in his memory to promote and support research by students pursu- ing studies in Alaska and the Caribbean. The 2007 recipient successions), stratigraphy and stratigraphic correlation, paleo- is Jill Leonard-Pingel of the University of California at San geography and paleobiogeography, interpreting past environ- Diego for “The dissection of an extinction: Using ecology to ments of deposition and their biological significance, and the understand the Neogene Caribbean extinction.” integration of these research areas into better global under- standing of (1) past plate motions (plate tectonics and sea- HAROLD T. STEARNS FELLOWSHIP AWARD floor spreading); (2) past sea-level events, including their iden- Harold T. Stearns established this Fellowship Award in 1973 tification and ages; and/or (3) climate changes and effects of for student research on aspects of the geology of the Pacific those climate changes on Earth’s inhabitants through geologic Islands and the circum-Pacific region. This year, the commit- time. There should be, over time, a balance of money among tee presented the award to three candidates. They are Eric the awards across these various subject sub-field categories Gottlieb of New Mexico State University for “Testing a model depending on the merit of the annual project proposals. The for synextensional magmatism and migmatite generation, 2007 recipient is Paul E. Reyerson of the University of Wis- Bendeleben Mountains, Seward Peninsula, Alaska”; Natalia consin–Madison for “Measuring the response of central Great Pardo of Universidad Nacional Autónoma de México (UNAM) Plains paleovegetation to Holocene climate change: The appli- for “Stratigraphy and eruptive history of the Asososca Maar, cability of biogenic silica.” Nicaragua”; and Melissa Sabga, of the University of Idaho for “Implications of temporal-compositional variations in the Pajas PARKE D. SNAVELY, JR., CASCADIA Flow, Floreana Volcano, Galápagos Islands.” RESEARCH AWARD FUND The Parke D. Snavely, Jr., Cascadia Research Award Fund pro- JOHN MONTAGNE FUND vides $1500 to support field-oriented graduate student research The John Montagne Fund was established in 2000 to support that contributes to the understanding of the geologic processes one recipient’s research in the field of quaternary geomorphol- and history of the Pacific Northwest convergent margin or to ogy. The 2007 recipient is Ryan Crow of the University of New the evaluation of its hazard or resource potential. The 2007 Mexico for “Interactions between volcanism, river incision, and recipient is Nicole E. Moore of Western Washington Univer- normal faulting in western Grand Canyon and implications for sity for “Origin and geochemical evolution of primitive mafic neotectonic models of the area.” magmas, Mount Baker, Washington: Probes into mantle and crustal processes.” ALEXANDER & GERALDINE WANEK FUND THE MAURICE “RIC” TERMAN FUND The Wanek Fund was established in 2002 to support research dealing with coal and petroleum resources, mapping, and The Maurice “Ric” Terman Fund provides one-year grants to engineering geology, marine resources, petroleum econom- fund the Ph.D. theses and post-doctoral research of East Asian ics, appraisal, and evaluation, and the geology of phosphate scientists. The countries currently included in this category are resources. The 2007 recipient is Jorge E. Marino of the Uni- Cambodia, China, Indonesia, Japan, Korea, Malaysia, Papua versity of Illinois at Urbana–Champaign for “Geothermal con- New Guinea, Thailand, and Vietnam. A recipient will be cho- ditions in the Illinois Basin at the time of coalification.” sen in the fall of 2007. The Outstanding Mention recipients as well as the Special- CHARLES A. & JUNE R.P. ROSS RESEARCH FUND ized Award recipients will be formally recognized by GSA at The Ross Research Fund was established in 2002 to support the President’s Student Breakfast at the 2007 GSA Annual Meet- research in the fields of biostratigraphy (including, but not lim- ing in Denver on Sunday, 28 October, 7–8:30 a.m. At that time, ited to, fossil age dating and the study of evolutionary faunal certificates and ribbons will be presented to the students.

GSA TODAY, JULY 2007 21 SEDIMENTARY GEOLOGY DIVISION Division Awards Sedimentary Geology Division Five Divisions have recognized the following grant recipients Student Research Grant Award who submitted proposals of exceptionally high merit in con- Æ Dolores A. van der Kolk, University of Alaska–Fairbanks, ception and presentation in their fields. These students will for “Sedimentology, stratigraphy, and paleoenvironmental receive recognition at their respective Division’s award recep- reconstruction of the pebble shale unit within the North- tion at the 2007 GSA Annual Meeting in Denver. east Brooks Range, Alaska.” v STRUCTURAL GEOLOGY AND TECTONICS DIVISION Structural Geology and Tectonics Division GEOPHYSICS DIVISION Student Research Grant Awards Allan V. Cox Student Research Grant Æ Sara M. Smaltz, Colorado State University, for “Structural Æ Matthew S. Zechmeister, University of Oklahoma, for controls on detachment folds associated with foreland “Paleomagnetic and rock magnetic study of Lower Car- arches: Beaver Creek anticline, Wyoming.” boniferous carbonates in NW Montana and SW Alberta Æ Daniel Jones, University of Wyoming, for “Analysis of with implications for orogenic remagnetization.” Paleoproterozoic growth along the southern margin of Laurentia, Sierra Madre, southeastern Wyoming.” Geophysics Student Research Grant Award Æ Ephrain A. Taylor, University of Texas at Austin, for Æ Jack S. Grow, University of New Mexico, for “Defin- “Structural kinematics, fluid flow, and talc formation in ing the eastern and southern boundaries of the central the Allamoore Talc District, West Texas.” Walker Lane Belt extensional complex: A paleomagnetic approach.” HYDROGEOLOGY DIVISION Hydrogeology Division Student Research Grant Awards Æ Kamala Brown, California State University–Sacramento, for “Physical and hydrological characterization of the Clark Meadow, California.” Æ Drew B. Gower, University of Wisconsin, for “Seepage Available at the quantification and modeling of reservoir contribution to groundwater levels in the Nariarlé basin of Burkina Faso.” GSA Bookstore Æ Jeff Phillippe, Oregon State University, for “Glacier meltwater contributions to the Upper Hood River, OR, and a model for future runoff. Memoir 199 Æ Rob A. Venczel, Southern Illinois University–Carbondale, for “Historical trends in flow dynamics and flood magnifi- cation, Tisza River, Hungary.” The Geology and Æ Corinne Wong, University of Texas at Austin, for Climatology of Yucca “Evaluating impacts of brush removal on recharge of a Mountain and Vicinity, karst aquifer.” Southern Nevada and California QUATERNARY GEOLOGY AND Edited by John S. Stuckless GEOMORPHOLOGY DIVISION and Robert A. Levich J. Hoover Mackin Student Research Awards Æ Nicholas L. Balascio, University of Massachusetts, for MWR199, 205 p., “Holocene tsunami deposits in coastal lakes of the Lofo- ISBN-13 978-0-8137-1199-7 ten Islands, northwestern Norway.” Æ Eli Lazarus, Duke University, for “A possible explanation for the locations and behavior of erosional hotspots on the northern Outer Banks, North Carolina.” $65.00, member price $46.00 Arthur D. Howard Student Research Award Æ Caleb J. Schiff, Northern Arizona University, for “Climate GSA Sales and Service reconstruction from diatom oxygen isotopes, Prince Wil- liam Sound, Alaska.” P.O. Box 9140, Boulder, CO 80301-9140, USA Arthur D. Howard Student Research +1-303-357-1000, option 3 Award Honorary Mention toll-free: +1-888-443-4472 • fax: +1-303-357-1071 Æ Elizabeth K. Thomas, University at Buffalo–SUNY, for “Global warming in light of past millennia: A multiproxy www.geosociety.org lacustrine study of climate in northeastern Arctic Canada.”

22 JULY 2007, GSA TODAY 2007 GSA RESEARCH GRANT RECIPIENTS

A Brian Cosky Tanya Gregg Samanta Lax Nicole Cox Jack Grow Eli Lazarus Jennifer Abrahamson Shelley Crausbay Melanie Grubb Daniel Lazzareschi Jason Adams Raymond Bart Critser Frank Guerrero Jill Leonard-Pingel Katherine Adelsberger Ryan Crow Erik Gulbranson Kevin Lielke Henry Agbogun Adam Csank Christopher Lipinski John Allen Ashley Long Jonathan Allen H Sean Loyd Heather Anderson D Logan Hansen Yuehan Lu Syam Sundar Andra Jennifer DeLoge Kelli Hardesty Jourdan Anoka Germari de Villiers Nathan Harris Wasinee Aswasereelert Amalia Doebbert Alexander Hastings M Kirk Domke Lindsey Henry Matthew Machusick B Vanessa Drueke Alan Hidy Kaitlin Clare Maguire Jessica Duggan Markella Hoffman Sara Maloney Nicholas Balascio Inmaculada Dura-Gomez Michael Howell Jorge Marino Iain Barton Michael Howley Wayne Marko Arden Bashforth Leslie Hsu Antonios Marsellos Keith Beisner E Pamela Marsh Scott Bennett Rita Economos Leila Marzeki Jeff Benowitz Douglas Edmonds I Joshua Mathews Melanie Bergolc Amy Ellwein Gabriel Izsak Scott McBride Anne Bernardt Stephen Elmore Seann McClure Marc Bernstein Daniel Emiliano Daniele McKay Paul Betka Emerald Erickson J Melanie Michalak Philip Bottrell James Michael Eros Trisha Jackson Lauren Michel Mark Bowen Jaime Escobar Debra Jennings Shahnewaz Mohammad David Bridges Katharine Johanesen Robert Moniz Connie Brown Bradley Johnson Nicole Moore Kamala Brown F Elizabeth Johnson John Morkeh Kenneth Brown Majie Fan Daniel Jones Ryan Moyer John Buchanan Una Farrell Christopher Myrvold Elizabeth Fein Kristen Myshrall K C Peter Flaig Andrew Flor Susan Karberg Daniel Cadol Brady Foreman Christopher Kassel N Margaret Cagle Rebecca Franklin Claire Kaufman Travis Naibert Matthew Carter Dawn Kellett Lauren Neitzke Zachary Casey Andrew Kemp Daren Nelson Jasmin Caton G Peter Knappett Nathan Nelson Devapriya Chattopadhyay Richard Gaschnig Ozgur Kozaci Brian Nicklen Jeff Chaumba Esteban Gazel Dondi Branden Kramer James Nolan Greg Chavdarian Andrew Gendaszek Lauren Chetel Jennifer Gifford William Childers Cyrus Gillett L O Brian Clarke Tom Gleeson Julia Labadie Hollie Oakes-Miller James Clements Sally Goodman Aurele LaMontagne Paul Oliver Kristopher Clemons Emily Gottesfeld Jackie Langille Christina O’Malley Kristen Cook Eric Gottlieb Tiffany Larsen Stephen Osborn Colin Cooke Drew Gower Catherine Lash Shannon Othus Raymond Cooley Sarah Greene Rachel Lauer

GSA TODAY, JULY 2007 23 P S T Isaac Westfield John Whitlock Natalia Pardo Melissa Sabga George Tangalos Luke Wilson Hyunmee Park Kimberly Samuels Ephraim Taylor Melissa Wolfe Camille Partin Rory San Filippo Joshua Theule Corinne Wong Stephanie Peek Veronica Sanchez Elizabeth Thomas Jennifer Wright Stephanie Perry John Sarao Cara Thompson Lyman Persico Mitchell Scharman Skye Thomson Aurel Persoiu Caleb Schiff Kate Tierney Y Jeff Phillippe Kathryn Schreiner Abbie Tingstad Nicolas Young Jason Polk Holly Schultz Denitsa Toneva Seth Young John Porter Alan Shabel Lisa Tranel Huimin Yu Rachel Potter Ryan Shackleton Joanna Troy Eric Prokocki Erin Shea Craig Tully Emily Short Carrie Tyler Z Daniel Shugar James Zambito Q Joshua Sigler V Matthew Zechmeister Ursula Quillmann Sheldon Skaggs Tao Zhang Sara Smaltz Dolores van der Kolk Guangsheng Zhuang Adam Smith Peter van Hengstum Joseph Zullo R Limaris Soto Charuleka Varadharajan Mohammad Rahman Erik Sperling Claudia Velez Selected Alternates Jasmin Raymond Abby Springer Rob Venczel Hasley for 2007 Rebecca Reverman Kevin Stafford Vincent John Volkmer Derek Adams Paul Reyerson Michael Stearns Rachael Von Mann Karen Carroll Amy Rice Byron Steinman Jeremy Gouldey William Rittase Dariusz Strapoc W Bethiah Hall Colin Robins Mel Strong Andrew Haveles Kevin Daniel Robinson Marina Suarez Yiming Wang Christopher Hein Teresa Russin Eugene Szymanski Christopher Ward Jennifer Kelley Shalina Warrior Joshua Long Amelinda Webb Kathryn Snell Nicole West Edward Sweeney

2007 Gladys W. Cole and W. Storrs Cole Memorial Research Awards

Martha Cary Eppes, of the University of North Carolina at Charlotte, was awarded US$8,600 from the Gladys W. Cole Fund for research in geomorphology of semi-arid and arid terrains for her research project “The weathering of marble grus and corestones.”

Benjamin P. Horton, of the University of Pennsylvania, was awarded US$7,600 from the W. Storrs Cole Fund for research in invertebrate micropaleontology for his research project “Examining the evidence for a recent acceleration in the rate of sea-level rise using combined instrumental and proxy data, Morbihan Golfe, Brittany, France.”

The 2007 Cole Awards for postdoctoral research are funded by the GSA Foundation.

24 JULY 2007, GSA TODAY GSA Foundation Update Donna L. Russell, Director of Operations

New Student Research Fund Established With great pleasure, GSA Foundation announces the estab- director of the Boston University Center for Remote Sensing. lishment of the Farouk El-Baz Student Award to encourage He is renowned for pioneering research in the applications of and promote desert research in the broadest sense. About the satellite images to study deserts worldwide, with emphasis on award, El-Baz says, “Deserts have received far less attention the location of groundwater resources. El-Baz is a GSA Senior than other types of landforms in geological studies. This award Fellow, a current member on the GSA Foundation’s Board of will encourage more students to pursue investigations of arid Trustees, and member of the U.S. National Academy of Engi- lands, which constitute over one-third of the land surface of neering, for which he serves on the committee to identify our planet.” “Grand Challenges for Engineering” in the next century. The Qatar Foundation for Education, Science and Com- In 1999, GSA Foundation established the “Farouk El-Baz munity Development generously provided the initial endow- Award for Desert Research,” to award excellence in arid land ment sum of US$100,000. The award will provide up to one studies. An annual distribution of US$10,000 has been awarded male and one female student a US$2,500 award each, based to leading experts in desert research from the international sci- on a summary of proposed research and an advisor recom- entific community. The new award is designed to encourage mendation. students to enter the field of desert study. The Qatar Foundation is a private, chartered, nonprofit For further information on the El-Baz Student Research Fund, organization. It was founded in 1995 by the Emir of the State of please go to gsafweb.org. Qatar to develop centers for progressive education, research, and community welfare. It is chaired by H.H. Sheikha Mozah Bint Nasser Al-Missned, consort of the Emir of Qatar. El-Baz, a veteran of the National Aeronautic and Space Administration’s Apollo program, is research professor and

Charitable IRA Rollover Most memorable early geologic experience: Time is growing short for you to take advantage of the Pension Protec- Long, hot Utah field days. Stand tion Act of 2006 (PPA). The PPA may offer an opportunity to those at least up—dizzy! Sit—dizzy! Exhaustion! 70 and a half years old to make tax-free charitable gifts from potentially Nausea! Couldn’t drink! What taxable individual retirement account (IRA) funds. Please check with your helped? Soda crackers. A lesson financial planner to see if you qualify. This charitable-giving window closes learned (salt deficiency) and not 31 December 2007. forgotten. For additional information on transferring funds, please contact the —Paul H. Reitan GSA Foundation, [email protected], +1-303-357-1054.

Enclosed is my contribution in the amount of $______. Please credit my contribution for the: Farouk El-Baz Student Research Fund Greatest need Other: ______Fund I have named GSA Foundation in my will. PLEASE PRINT

3300 Penrose Place, P.O. Box 9140 Name Boulder, CO 80301-9140 +1-303-357-1054 Address [email protected] City/State/ZIP www.gsafweb.org Phone

GSA TODAY, JULY 2007 25 GSA COMMITTEES: PROGRESS THROUGH SERVICE Awards Committees

The Geological Society of America is a large and diverse sciences. In this age of rapidly expanding scientific knowledge group of extraordinary scientists. Our membership has not coupled with high-stakes public policy issues, GSA recognizes only grown over the years, but diversified, expanding into new the vital importance of outstanding achievement in communi- disciplines that include all aspects of Earth, our solar system, cating science. and beyond. Every year we hear new research presented at Honorary Fellowship is the Society’s oldest homage, estab- Society and other meetings and read it not only in GSA pub- lished by Council in 1909 to honor individuals who have lived lications but in journals published throughout the world. It is and developed their careers outside of North America and a tremendous thrill when we are exposed to groundbreaking made outstanding and internationally recognized contributions science that impacts our thinking in many and varied ways. to our science. Honorary Fellows (usually one to three each It is only fitting that the Society has established awards to year) are granted lifetime membership in GSA. North Ameri- recognize the exceptional contributions of scientists, ranging cans also have been named Honorary Fellows for notable ser- from those at early stages in their careers to those who have vice to the Society, but rarely, as the recognition is meant to made a lifelong impact. The awards are not only a way to con- focus on the international community. gratulate those scientists who stimulate our thinking, but also to offer our thanks. NOMINATION AND SELECTION OF HONOREES Identifying the most qualified scientists for these awards THE THREE SOCIETY MEDALS requires a proactive membership to nominate worthy candi- We can all be inspired and excited by the creative and mul- dates. This entails the small but necessary effort of providing tidisciplinary advances of young geoscientists. A very generous a statement of qualification (300 words or less) and support- endowment to the Society in 1988 by Dr. and Mrs. Fred Donath ing documentation that includes a biographical outline, lim- generated the newest medal for GSA, the Donath Medal, also ited bibliography, and several supporting letters. Each award known as The Young Scientist Award. This award is presented requires specific information, which can be found on the GSA to a scientist age 35 or younger for outstanding achievement in Web site at www.geosociety.org/awards/nominations.htm. contributing to geologic knowledge through original research Committees for each award consider the nominations and that marks a major advance in the earth sciences. This award select awardees. Each committee’s final ranked list of candi- has personal meaning for me because when I took structural dates is evaluated and approved by Council. geology at Stanford some years ago, Fred Donath was the GSA members serve on and chair these committees. Because teaching assistant. I have served on this award committee sev- of the diversity of our science, members from many disciplines eral times and am always amazed by the extraordinary accom- are needed to adequately evaluate the candidates. Any Society plishments of our young members. This bears witness to the member can volunteer to serve on these committees, but final health and vitality of GSA. selection of committee members varies each year depending The Arthur L. Day Medal is awarded for outstanding distinc- upon the expertise needed. tion in contributing to geologic knowledge through the appli- I have served on all of the award committees, either as a cation of physics and chemistry to the solution of geologic member or chair, sometimes more than once, and have never problems. Day’s intent was to recognize outstanding achieve- found the committee work to be too time consuming. Rather, ment and to inspire further effort in scientific discovery and it is a pleasure to be able to make a small contribution to elucidation. those members of our Society who have contributed so much The Penrose Medal, the highest GSA award, is presented to all of us. in recognition of eminent lifelong research in pure geology, for outstanding original contributions, or for achievements Clark Burchfiel that mark a major advance in the science of geology. Reading Massachusetts Institute of Technology, [email protected] through the list of past Penrose medalists (www.geosociety. Past Chair, Young Scientist Award Committee (2005–2007); org/awards/past.htm#penrose) is truly a walk through the his- committee member through 30 June 2008. tory of scientific advancement.

Other Major Society Awards You can volunteer to serve on an award committee or The GSA Public Service Award (www.geosociety.org/aboutus/ nominate someone you know who would fit well with the awards/aboutAwards.htm#psa) was established by Council in mission of these committees. See page 29 to find out how 1998 in honor of Eugene and Carolyn Shoemaker (www2.jpl. (and hurry: the deadline is 15 July!). nasa.gov/sl9/news81.html). This award honors individuals who To read more about the awards, go to www.geosociety.org/ have significantly enhanced public understanding of the earth awards/aboutAwards.htm.

26 JULY 2007, GSA TODAY The Kerry Kelts Research Awards of the Limnogeology Division

APPLICATION DEADLINE: 10 AUGUST 2007

The application process for the Kerry Kelts Research Awards of the Limnogeology Division is now open. These awards are named in honor of Kerry Kelts, a visionary limnogeologist and inspiring teacher. Up to three awards of US$350 each for use in research related to limnogeology, limnology, and paleo- limnology are available. Application for this award is simple and consists of a summary of the proposed research, its sig- nificance, and how the award will be used (five-page maxi- mum). Please send your summary in PDF format along with your name and associated information to the chair of the Limnogeology Division, Kevin M. Bohacs, kevin.m.bohacs@ exxonmobil.com. Awards will be announced in October at the Limnogeology Division Business Meeting and Reception at the 2007 GSA Annual Meeting in Denver. We hope to increase the amount of the awards in succeeding years. If you are interested in supporting this awards program, please send your donations, designated for the Kerry Kelts Research Awards of the Limnogeology Division, to GSA, P.O. Box 9140, Boulder, CO 80301-9140, USA.

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FLOODS, FAULTS, AND FIRE: Geological Field Trips in Washington State and Southwest

ucker FLOODS, FAULTS, and DavidFIRE S. T British Columbia Stelling and Edited by Pete Geological Field Trips in Washington State and Edited by Pete Stelling and David S. Tucker Southwest British Columbia The ten geological field guides presented in this volume explore key areas of the geologist’s paradise that is Washington State and British Columbia. These trips investigate a wide variety of geologic and geographic terrains, from the dry steppe of the channeled scablands and Columbia River Basalt Group to the east, across the glaciated and forested Cascade arc and Coast Mountains, to the geologically complex islands in the west. This guidebook may be unique in that four of the trips utilize boats to reach remote field areas and are therefore rarely visited by geologists. Although the trips were guided during the 2007 GSA Cordilleran Section meeting, the guides have been written to ensure that people can easily guide their own trips. The result provides an excellent source of exciting, thought-provoking geologic adventures for years to come.

ld Guide 9 Fie FLD009, ISBN-13 978-0-8137-0009-0 $35.00, member price $24.50 Field Guide 9

GSA SALES AND SERVICE P.O. Box 9140, Boulder, CO 80301-9140, USA +1.303.357.1000, option 3 • toll-free +1.888.443.4472 • fax +1.303.357.1071 www.geosociety.org

28 JULY 2007, GSA TODAY Call for GSA Committee Service Stimulate Growth and Change

2008–2009 COMMITTEE VACANCIES Nominations (B/E, T/E) Terms begin 1 July 2008 and run for three years One member-at-large vacancy (unless otherwise indicated). Penrose Conferences and Field Forums (T/E) Contribute to our science by volunteering yourself or One member-at-large vacancy nominating others you think should be considered for Penrose Medal (T/E) any of the following openings. Younger members are Two member-at-large vacancies especially encouraged to become involved in Society activities. If you volunteer or make recommendations, Professional Development (T/E) please give serious consideration to the specified qualifi- Two member-at-large vacancies cations for serving on a particular committee. Research Grants* (B/E) The nomination form and instructions are available at Seven member-at-large vacancies www.geosociety.org. Click on the Nominate Online for Treatise on Invertebrate Paleontology Advisory 2008–2009 button to access a secure form. Or down- Committee (AM) load and complete the paper nomination form, and return One member-at-large (paleontologist) vacancy it to Pamela Fistell, GSA, P.O. Box 9140, Boulder, CO 80301-9140, USA, fax +1-303-357-1070. If you have ques- Young Scientist Award (Donath Medal) (T/E) tions, please contact Pamela Fistell, +1-303-357-1000 ext. 0, Two vacancies: One member-at-large; one 1-800-472-1988 ext. 0, or [email protected]. councilor/former councilor Nominations received at GSA headquarters by 15 July 2007 on the official one-page form will be forwarded to the Committee on Nominations. Please use one form per GSA REPRESENTATIVES candidate. The committee will pre sent at least two nom- TO OTHER ORGANIZATIONS inations for each open position to GSA Council at its fall meeting. Appointees will then be contacted and asked to GSA–AAAS Consortium of Affiliates for International serve, thus completing the process of bringing new Programs (CAIP) (AM, B/E) expertise into Society affairs. One GSA Representative vacancy

AAPG Publication Pipeline Committee (B/E) One GSA Conferee vacancy Academic and Applied Geoscience Relations Committee (AM, T/E) North American Commission on Stratigraphic Three member-at-large vacancies Nomenclature (NACSN) (AM, possibly B/E) Arthur L. Day Medal (T/E) One GSA Representative vacancy (Nov. 2008–Nov. 2011) Two member-at-large vacancies Geology and Public Policy (AM, B/E, T/E) Two member-at-large vacancies GSA Public Service Award (T/E) One member-at-large vacancy Honorary Fellows (T/E) Two member-at-large vacancies COMMITTEE, SECTION, AND DIVISION Membership (B/E) Three vacancies: One member-at-large; one VOLUNTEERS: COUNCIL THANKS YOU! The GSA Council acknowledges the many Member- member-at-large, government-employment category; volunteers who, over the years, have contributed to the one member-at-large, student category Society and to our science through involvement in the Minorities and Women in the Geosciences (AM) affairs of The Geological Society of America. Three member-at-large vacancies

July 2008 Committee Vacancies: *Extensive time commitment required AM—Meets at Annual Meeting B/E—Meets in Boulder or elsewhere T/E—Communicates by phone or electronically

GSA TODAY, JULY 2007 29 New Members: GSA Welcomes You!

Rebecca S. Foulger Saswata Hier-Majumder Richard Francaviglia Jerry D. Higgins Todd G. France John High Chad Hamlin Freed Robert Hillery Michael J. Freehling Bruce Hilton Jeremy D. Freeland Benjamin Hinkle Andrea Friedman Derrick D. Hirsch Judith A. Froot Rex Hodges Carol Denison Frost Gregory Hodgins Matthew L. Fuller Mary Holland-Ford The following individuals were elected into membership by GSA R.M. Gabet Ed Hollingsworth Council at its April 2007 meeting. Jose Antonio Gámez Maria G. Honeycutt Vintaned Robert E. Honeycutt Professional Members Dana R. Brown Mack G. Croft Paul R. Gammon Richard Paul Hooper Jennifer N. Adleman Tim O. Brown Patrick Robin Cummings Geoff Garcia Jan W. Hopmans R. Jay Akes Vicki J. Brumback Arthur Curtis Alfred Garraffa Joan M. Horn Ramanathan Alagappan Pierre W. Bruno Kenneth Edward Czoer Christopher Garrity Carol L. Hotton Laura Albert Marcus John Buck Sarah L. D’Agostino Matthew Garthwaite Steve Hovan William H. Albright James Carl Bull Kristen Daly Phillip David Garwood Qinhong Hu Eldon P. Allen Marilyn Kay Bull Michael J. Darr Robin Gary Allen S. Hubbard Nathaniel H. Allen Mark D. Bunnell Roger de la Rosa Claudio Gaucher David Huff Trevor Allen Mindy Burke Mary Frances DeFlaun Ryan Cooley Gaujot Mark Huffman Manuel Alonso Greta Burles Rob A. Delnagro Tegenne T. Geberetsadike Matthew F. Hunter Randall Alpizar Delroy Burnett Judith M. Denver Donald James Geddes Joe Iovenitti Efem Altinok David R. Burris Alexander Jean Desbarats Virginia Gent Emi Ito Miriam S. Andres Richard M. Busch John F. Devlin Richard K. George Alexander D. Jack Clarence H. Andrews Lisa D. Bush Ann C. Dieffenbacher- Dana Stuart Gerlach Rob Jackson Constantin Andronache Toni Marie Callaway Krall Frank Getchell Martin Jakobsson C.D. Anglin Monica A. Calvert Nick Dierks Prosenjit Ghosh Terry James Kristopher E. Appel John P. Campbell Jr. William E. Dietrich Julio Cesar Gianibelli James Jawitz Audrey Aronowsky Robert D. Campbell Cynthia G. Dietz Arthur William Gielow Jr. E. Geoffrey Jeffreys Far W. Arrington Steven Carle William L. D’lier Paul Glaser Uwe Jenchen Marie-Pierre J. Aubry Glen B. Carleton Larissa F. Dobrzhinetskaya Leverich Glen Pam Jenni Nick Bader Mike Carr Peter Dodson J.E. Godfrey Eleanor Jennings Summer J. Barbina James Carter Rona J. Donahoe Beth Ann Goldoff Robert W. Jewell Mark Emmerson Barley Winston Carter Perle M. Dorr Robert W. Good Brad M. Jinkins Harry P. Barnum John Francis Casey Paul B. Dotson Antone J. Gosar Robert M. Joeckel Fernando Barra Stephen P. Castleman James Michael Doyle John Daniel Grace Jonathan C. Johnson Beth A. Bartel Strat Cavros Sharon E. Dries Michael Gracz Joni G. Johnson Debnath Basu Stan Celestian Alphen S. Dsouza Alan Granger Stephen V. Johnson Charles Mario Bauer Cory Chance Francis E. DuBois III Geoffrey Hugo Grantham Steve B. Johnson Timothy D. Bechtel Mark A. Chapman Thomas E. Dwyer Lloyd S. Grearson Steven S. Johnson Edward Beck Brian D. Chatterton Stephanie Christa Earls Silas W. Grisewood Paul E. Jones Jean H. Bedard Dennis W. Cheek Paul Ecker Amanda E. Gross Pamela Jean Jones- Thomas H. Beisel John T. Cheney Robin James Edwards Beata Gruszka Fuentes Lahmira Belkacem Thomas C. Chidsey Sven Olaf Egenhoff Michael Edward Guilbert Matthew L. Julius Bonnie Bergen Oliver B. Christen Janet M. Elliott Mickey E. Gunter Connie J. Jump Brian Berkowitz Mala R. Ciancia Colleen C. Ellis Marc A. Hachey Michael B. Kaczmarek Elizabeth K. Berner Allan Clark Andrew M. Ellsmore Scott P. Haitz Alicia Kahn Bismarck Aurora Bianco Amy R. Clark Mostafa Elsehamy Keith J. Halford Ansis G. Kaneps Walter Bien Richard P.K. Clark Bryan L. Emilius Bradley Hall Mir F. Karim Alice (Jill) Angelyn Black Cornelia Class Dean A. Enderlin Eric Hanis Kim A. Kastens Pamela B. Blanchard Geoff Clayton Robert J. Fairhurst Holden M. Hanna Lynn Ellen Katz Jennifer G. Blank Tom Clemo Sarah K. Faldetta Edward C. Hansen Patrick M. Keefe Alec Bodzin Robert Clifton Michael L. Faris Andrew Ross Harrison Mike Keenan Paul Bonifaci Mitchell Colgan Michael K. Faught Matthew Hartmann Alison Keimowitz Yvette Bordeaux Molly Collins Valentin Fedkin Jason R. Harvell Gerta Keller Ann M. Borden Patrick C. Connelly Anthony D. Feig Walter Hasenmueller Marshall Keller Alain C.M. Bourg Dale Everette Conover Moussa Feknous Sonja Hausmann Stephen M. Keller James R. Bowes Howard Coopersmith Mark Feldman John M. Headrick Kenneth A. Kelley Karin Boyd Salvatore Corbo Jonathan P. Fillingame Lauren Heerschap Dorothea S. Kellogg Mark Elliott Brandriss Robert M. Cordova Richard Fillon Victoria A. Helmke Kevin F. Kelly Kevin Brewer Ellen F. Cornette Noah Fishman Darrell James Henry Michael Kendrick James Breza James L. Cornette Faith Fitzpatrick John F. Henz Miles D. Kenney Brooks B. Britt Douglas J. Cosler Robert J. Floyd Sandra Herbert Andrea W. Kenter Amanda S. Brooks Michael H. Cox Katherine V. Foley Sam Hessa Stephen Kenworthy Eric Jackson Brosius Mary D. Crist Michael F. Folger Marilyn A. Hewitt Irtaza Muhammad Khalid

30 JULY 2007, GSA TODAY New Members: GSA Welcomes You!

Peter Kilbury James Harry Macquaker Thomas J. Nicholson Ivars Reinfelds Dwight Lee Smith Ann G. Kim Susan Mahoney Graham A.J. Nickerson David F. Remick Sara K. Smith Eun Jung Kim Irena G. Malakhova John Nicolich I.S. Renneisen Stephany L. Smith Jeong Hee Kim John H. Mann Peter M. Niculescu Thomas J. Rice Steven C. Smith Won-Young Kim Robert J. Marguccio Jeffrey W. Niemitz Paul L. Richards Brian M. Smyth David H. Kime Daniel Markewitz Ben Noller Richard L. Richins Gary W. Snyder James E. King Angela Martello Christopher Nye Bryan Rillstone Ronald W. Snyder Christopher N. Kinnick Jeremy Mates Johan Petter Nystuen Alfonso Rivera Robert M. Sok II Carl S. Kirby George I. Matsumoto Sean J. O’Brien Alan M. Robinson Gerardo Javier Soto Catherine Kissel Yuki Matsushi Michelle O’Dea Sadira Robles Steven E. Spayd Donald A. Klein Sharon Matthews Osaguona M. Ogbebor Alfred Roca James H. Speer Andrew M. Koenigsberg John Musembi Maweu David R. O’Leary Bruce A. Rodgers Lindsay J. Spigel Arthur W. Koepsell Stanley M. Maxwell David C. Oliver John C. Roe Spencer Scott Spurlock Alexander S. Kolker Sharon N. May Dan E. Olson Kevin R. Rogers Edith Starbuck Albert D. Kollar Gari Mayberry Stephanie Annette Jason Rolfe Kurt Stauder Stefan Kollet Drew Mayerson O’Meara Thomas J. Roper III Sandra J. Stewart Hisao Kondo Michael Mayhew Tullis C. Onstott Murray Rosenberg Jeffrey A. Stofka Barbara J. Koonz Laura E. Mayo Brian F. Oram Marjan A. Rotting Sheryl M. Stohs Kathleen Kordesh Andrew Thomas Robert Osborne Alicia M. Rowe Jeffery Robert Stone Anthony Andrew McCarthy Bethany O’Shea James William Roy Glenn B. Stracher Kovschak Andrew T. McCarthy Samantha S. O’Toole Stephen J. Roy Maurice Jules Streel Anna Krusic Francine McCarthy David L. Ozsvath Tonia Rucker Robert Streitz Conrad Allen Kuharic Wendy McClellan Maureen Padden Mark Russell Steven B. Strickler Robert Kuhlman Bryan J. McConnell Norman J. Page Phil Ryder Brian R. Strohmeier Jeff Kuhn Richard McCourt Samuel V. Panno Donald W. Sada Richard Anthony Stross Richard Labourdette Dan B. McCullar Chunjin Park Christopher J. Sanchez Matthew L. Stutz Ahmed Lachhab Brett J. McDaniel David E. Park Ryu Sang Hun Thomas Suggs Pierre J. Lacombe Donald Alexander Young-Rok Park Marco Sanguinetti Jerome K. Summerlin Tyler Ladinsky McFarlane Diane E. Parry Dawna Saunders Brad Sutter Hannan E. LaGarry Alistair John McGowan Ramesh Paswan Joe Saunders Eric Syrstad Gregg Lamorey Kevin McKeever Daisy B. Pate Michael E. Sayre Masaki Takahashi Peter D. Lanagan Nathan David Melear Tim Patterson Joerg Schaefer Herman W. Taube III Tom Lane Adrian L. Melott Melissa E. Pearson Traugott Joachim Scheytt William T. Taylor Daphne D. LaPointe Thomas Mergy Elizabeth A. Pendleton Glenn P. Schifferdecker Richard Tedford Philip Charles LaPorta Debra Meritt Steven Perkins Wayne Richard Schlipp Jennifer Teerlink Margaret L. Laporte Jean Mescher Eric A. Perry Kenneth D. Schmidt Stan C. Teerman Claudio Latorre Hidalgo Brian K. Meyer Jeffrey Peters Robert Schmoler John Thomas Thacker III Luc Louis Lavier Robert Michael Patrick Peterson Richard C. Schneider Paul Thacker Owen P. Lavin Greg Michalski Scott B. Peterson William H. Schneider Sid Thompson Peter Lea Paula M. Mikkelsen David Schaub Pettigrew Charlotte Y. Schroeder Claire R. Tiedeman Joseph G. Lebold Bernd Milkereit Susan Pfiffner Karen J. Schwab Laura Lee Tobicoe Richard Lee David W. Miller Herbert A. Pierce Ken Schwartz Warren C. Tomkiewicz Paul W. Leist Joseph M. Mills Jr. Joseph D. Pieterick Roseanne Schwartz Ralf Topper Joel D. Lenk Mike W. Mills Elizabeth Pigg Andrita M. Scofield Lynn Joseph Torak John D. Lenters Premanand Mishra Werner E. Piller Keith W. Scoular Marta Torres Kevin W. Leonard Vindina Ramesh Mitha Ariane Pinson Louis A. Scuderi Amanda M. Trenton Eduardo Leorri Ralph G. Mock John Pohl Kevin R. Sech Robert G. Tscherny Suzanne A.G. Leroy Amir Mokhtari Fard Alexander Georgievich James M. Seefeldt Lisa Kay Tuck Dennis E. Lewarch Katrin Monecke Polozov Mike J. Sellwood Lukanga Willy Tukuyi Dean Lewis Wimonrat Montri Nancy Kilbridge Pontier Sohrab Esmail Shahmir Colin B. Turnbull Rong-Yu Li Sally P. Moore Rob Porges Toby Shallcross Simone Ulmer Joseph Liddicoat Laura T. Morales Fred Galen Portofe Jessica Sharoff Michael Charles Unger Thomas Dean Liefer Joanna Victoria Morgan Lynne M. Preslo Virgil L. Sharpton Lensyl Dynel Urbano Emily F. Lindstrum Paul J. Morris Van Price Anne B. Sheehan Hal W. Utsler Chen-Wuing Liu Penny A. Morris William J. Priore Jun-Chin Shen Shelby Ray Valenzuela Chongxuan Liu John Edward Moylan Jim Puckette Yang Shen Alexander W. Valli Clyde Livingston Karl T. Mueller Steven Quiring Henry Shenk Stephan van Gasselt Guy L. Livingston Matthew J. Mulhall Mark Raab Roger Shew Drew R. Van Orden Diana D. Long Jeanette Mullin Patrick Radomsky Cameron Sheya Mark Adriaan van Zuilen Russell L. Losco David Muscalo Mark Cable Rains Catherine Shrady Shahab Varkouhi Andrew Louchios Gerald C. Nanson Michel Rakotondrazafy Shamsul H. Siddiqui Ruth K. Varner Larry K. Lucas Melissa Neave Satish Ramrup Sanaz Sigarchi Michael J. Vendrasco Brian R. Luinstra Steven Neugebauer Michael D. Ransom Jose L. Silvestro Eric P. Verrecchia Zhe-Xi Luo Thomas A. Newsom William G. Reay Ken Sims Jennifer N. Vinci Karen MacClune Cathryn R. Newton Harold K. Recoy James A. Skinner Jr. Jeffrey R. Vinson Leah K. MacKinnon Julianne L. Newton Charles P. Regan Patrick Smillie Richard F. Viso Gwen L. Macpherson Scott Lawrence Nichol Stephen James Reid Daniel J. Smith Louis F. Vittorio Jr.

GSA TODAY, JULY 2007 31 New Members: GSA Welcomes You!

George B. Vockroth Sun Zhiming Richard Jopp Terry Welch Brandon Michael Mattias von Brömssen Jianting Zhu Melissa S. Karpinski Karin A. Wheeler Bartkowiak Andre Vorauer Robert A. Zierenberg Michelle Kaszuba Bridget B. Williams Elizabeth A. Bastin Raymond A. Wagner Witold Aleksander Deborah J. Katchen William C. Wilson Rituparna Basu F.M. Walchak Zuchiewicz Andrew J. Kaufman Caroline M. Withers Jessica Marie Battisto Brian Walsh Stephanie E. Zurenko Terri J. Kelsey Jared L. Woodard Cecelia Baum Robert Curtis Walter Valli Kempf Sarah E. Baxter Gary Walvatne K–12 Teachers Stephen Kilpatrick Students Jordan Beamer Jesse M. Wampler Peggy W. Altman Jason Kruger Salah Al-Deen M. Jezra Bleu Beaulieu Yue Wang James Anderson Michael J. Lamonica Abdalbagi Lauren J. Beavon Brett M. Wanner John Anderson Charles Laurence IV Francine Reiko Abe Jack B. Beers III Chris Ward Michael D. Arbegast Derrick M. LePard Andres L. Acosta Catherine Beland Otis Sophie A. Warny Mark Bailey Marc Linton Derek Adams Christina L. Belanger Marian J. Warren Erin C. Baldwin Denece Lord Lexton Adams-Lett Jesslyn M. Belanger James Stanley Watson R. Barnes Anthony Marinelli James Addo Jennifer Marie Bellamy C.B. Way Carla Barrell Steven Marshall Brandi M. Adriance Mary C. Benage Eric L. Weigand Carol Barrett David B. Martin Ashish Aggarwal S. Christian Benker Ethan Weikel Christine Bavaro Lori L. Maxcey Brent V. Aigler Kristian J. Bergen Matthew Scott Weikel Gladys Bharath Heather McArdle Omowumi O. Alabi Sarah Bergman Walter Weinig Frank Bonosoro Michael J. Meyer Sheyla Maitté Alayon Dan Berkman Susan S. Weir Robert J. Borowski Catherine Miekina Jeffrey A. Albano Marc Bernstein Noam Weisbrod Jerry Breton Karen L. Milne Mary Alberius Renee I. Bernstein Ray J. Weldon Leigh Burkett Timothy Morton Aaron K. Aldred Tami G. Beyer Claire Welty Mark W. Butcher Cheryl Mosier Zarine Ali Aditi Bhaskar Scott Andrew Whattam Ellen M. Button Gregory M. Mundie Robert L. Allbaugh Partha Sarathi Jeffrey White Charles Calhoun Kelly C. Murphy Lauren Nicole Allen Bhattacharjee Ransom White III Angelina Christine Joshua K. Nixon Hanmantha Chary Bhart-Anjan Singh Bhullar Thomas E. Whiteley Chermansky Jennifer Paradis Raechel A. Bianchetti Allepalli Timothy J. Whitlow Robert Chernow Alex Parisky Christopher Bianchini David Joseph Allison Thomas G. Whitman William Craychee Kevin D. Paulsen Lisa Bingaman Nicholas Alvino Edwin L. Whitmer Jr. Judy Cregeur Jason Petula Aaron Bini Rebekah Amaral Dale Lee Whybark Margaret Deeny Elizabeth Pope-Williams Andrew D. Binns Allen Karl Andersen Todd Wiedemeier Nancy I. Dickinson Norwood H. Powell Jr. Rebecca Binversie Ashley Kaye Anderson Ruth H. Wightman Peter Disterlic Robin K. Putnam Michael E. Bishop Heidi J. Anderson Jason Kennon Wilkinson Terry C. Duber Martha Quenon Jonathan S. Bittner Joseph Landon Anderson Donald H. Wilkison Matthew S. Dunphy Curt Ralston Joshua Blackstock Nicole A. Anderson Brant Wilson Rita Dybas Anthony C. Rappold Mark A. Blanco Sarah Anderson Jennifer Ann Wilson Richard Eliazarian Kenneth H. Rawn Maryalice Blasioli Zachary W. Anderson Merry Wilson Derek Esibill Gaylynn Reed Daniela Blessent Laura Angel Arne Max Erich Winguth Christopher Noel Sarah M. Rhinehart Jessica Blosser Stephen A. Anstine Steven J. Winkley Etherington James H. Richards Graham Boardman Christopher Wnuk Rachel A. Eustice Richard J. Rogers Daniel B. Anzelon Jay Bobbins Douglas Gerald Wolfe Katherine M. Fell Annie Rutherford Erin Araujo David Bock Su Ja Won Marcia K. Ferguson Rodney A. Sandefur Lee John Arco William Boggess Ming-ko Woo James B. Figley Rosemarie W. Sanders Jim Armentrout David J. Bohnert Scott Woods John J. Fisher Clair A. Sauer Laura Arppe Hillary Boone S. Paul Wright Mark Steven Flaum Matthew L. Schmidt Khandaker Ashfaque Sydney E. Boos Maureen L. Wruck Jessica Floridia Cheryl Schulte Carmen C. Athens Adam Boozer Fuyuan Wu Steven V. Fogarty Terrie Schultz Michael G. Aufill Miriam N. Borosund John Wyciskalla Shari Lynn Generaux John Scramling Brent T. Austin TiffanyAnn Borton Jon L. Wynn Tim Germeraad Nicole M. Seibert Emily C. Austin Nicholas R. Bose Joshua R. Wyrick Kathy Glidewell Elizabeth Rose Shanor Patrick H. Bagley Amy Bourdon Carol Yamane Staci M. Goode John Sharpe Andrew S. Bahrou Christopher M. Bowie Yurena Yanes Ma Luisa T. Gozum Joshua Shenker Scott Baietti Jeff David Bowman Michael Qingjun Yao David Thomson Gross Janine B. Shigihara Janna M. Baker John Boyd Mary Yeargan Michael K. Gross Michael John Smith Jessica L. Ball Beth Bradshaw Mark Yiatras William H. Gruner Peter F. Smith Dawne Ballard Cathryn Rose Brandon Lily Y. Young Sam Haddad Bryon P. Spicci Thomas Balzano Michael P. Braunscheidel Martha E. Yount Theresa Hamilton Jennifer M. Thomas Alyssa Marie Bancroft Robert M. Brems Pedro F. Zarate de la Valle Dean G. Heffner Karen L. Thomas Christopher J. Banser Matthew Brennan Andrew Zarins Catherine A. Henrich Stacy W. Towne Corinne L. Barabas Matthew D. Brindle Michael S. Zavada Kong Ho Robert T. Tweeddale Andrea Barbieri Amanda M. Brisbin Carlos Zavala Michael Hochderffer Lesley C. Urasky Richard Joseph Barkett Stefanie J. Britch Mallory Zelawski Patricia Hoeck Donald G. Wafer Madison C. Barkley Emma L. Britton Mark Zerniak Junji Horiuchi Roxanne Walker Brent J. Barley Scott Broo Junfeng Zhang Janice L. Hurff Michael F. Walz Jeffrey Alan Barney Josh Brooks Yong-Fei Zheng Sandy Jernberg Rodney M. Ward Heather Marie Baron Daniel Stephen Brothers

32 JULY 2007, GSA TODAY New Members: GSA Welcomes You!

Anita Brown Lee Corbett Habib El Hadji Sy Diop Heather Lindsay Fields Andrew W. Gonyo Holly Alicia Brown Robert D. Cosentino Paul J. Dixon Elizabeth Finzer Javier A. Gonzalez-Garcia Michael S. Brown Matthew Costakis Katherine I. Dlubac Joseph John Fiore Jr. Bradley Tyler Gooch Shannon N. Brown Evan Costas Katherine J. Dobson Tim Fischer Jared T. Gooley Terri Brown Dan Edward Costello Rebecca M. Dodds James E. Fisher Lauren Gordon Emily Browning Michael Francis Coughlin Greer A. Dolby Angie N. Fite Donna M. Gorwitz Sharon Browning Aaron K. Covey Becky A. Donegan Heather Fleming Heather L. Gosack Sarah Jo Brownlee James Hamilton Cowart Kevin Cunningham Vivian E. Flores Joe Goshorn-Maroney Tonya M. Brubaker Lisa Cowart Donegan Martha Flower François Goulet Chelsea E. Brunner Nicole Lynn Cox James Brian Donnelly Andrew Patrick Fornadel Jennifer A. Goyette Alexander Bryk Anastasia Mary Craver Patrick H. Donohue David Foster Brynne A. Grady Heather Buchan Loza Jena Crispo Casey D. Dooms Melissa R. Foster Andrew Grant Timothy C. Bucher Megan L. Crocker Lane C. Dorman Ron Foster Cambia S. Green Jessica A. Buckles Carrie Lynn Crockett Sara Dougherty Sarah Elizabeth Foster Katharine Green Charlotte Buehler Maria R. Crosby Mike Doughty Whitney M. Foster Mark Green Craig S. Bunten David Scott Crotsley Liam Doyle Nicholas Reid Fox Sarah Elizabeth Greene Denise Burchsted Ryan Crow Donnie L. Dressler III Chris Franklin Richard J. Greenemeier Daniel Paul Burnham Caleb J. Crowell Beth Drewes Megan Franks Corinne Y. Griffing Darrin Burton Dulce C. Cruz Annie M. Drewry Melodie French Anne M. Griffith James B. Butera Alicia Marie Cruz-Uribe Austin Dreyer Chas Fricke Eric D. Gross Matthew Philip Bychowski Ryan Csontos Susan Drymala Kaitlin Friedman Laura Isabel Groth Amanda Lynn Bylsma Nick Cuba Yun Duan Russell C. Frommer Mark A. Growdon Charren C. Cabaroy Sean Culkin Gary M. Duby Shelby J. Frost Melanie C. Grubb Jason Callaghan Emily L. Cunningham Jessica L. Duggan Sarah Avison Fuller Robin J. Gruenfeld Taylor Callison Jonathan A. Currie Katie Emma Duggan Zoe Oriel Futornick Sean Gryger Michael S. Calzi Ryan Currier Tammy L. Dunlavey Jeremy Gabriel Troy J. Grzymko Jessica Camp Joseph A. Cypher Logan Duran Abigail P. Gage Merrilee F. Guenther Richard Kramer Campen Allison Christine Daley Sucharit Dutta Katie L. Gagnon Bhaswati Guha Bradford Michael Cantor Andrea M. Daman Timothy P. Duval Chris Gahn Erik L. Gulbranson Silvia B. Cardona Abigail D’Ambrosia Cigdem Duymaz Sara R. Gallagher Ipsita Gupta Tamara Carley Heath Aaron Dame Allen R. Dwyer III Joanna M. Gammans Damayanti Gurung Laura Carlson William J. D’Andrea Mark Dyson Laurel M. Gandler Miguel Gutierrez Daniel Carmody Daniel R. Danehy Brian Anthony Ebel John Gannon Xochiyotl Gutierrez Johanna K. Carpenter Lemaire Daniel Laurie R. Eccles Ling Gao Ashley Melissa Hague Christina G. Carr Joshua P. Dark Amy Elizabeth Edwards Matthew Garb Byron T. Halavik Christopher William Case Tathagata Dasgupta Cole T. Edwards James Brien Gardiner Geoffrey R. Hale Jr. Amanda L. Cashman Erin B. Daun Sarah M. Edwards David William Gardner Sarah C. Hale Leigh A. Castellani Ashley R. Davidson Noah Egge Justin D. Gates Austin W. Haller Jennifer Castle Mark Davidson Nathan Eichelberger Mark Gawel Caven Halsey Jasmin C. Caton Brittain K. Davis Angela L. Ekstrand Jessica Gawron Hiroshi Hamasaki Roberta Challener Christina Davis Tiiu Elbra Kyle Gay Nathan T. Hamm Daniel Chandonais Emily Davis Brad Elkins Matthew Gaynor Kevin Hand Su-chin Chang Nicole Lee Davis Hannah Develin Elkinton Joshua L. Gentry Jennifer Handlin Nanda Chassot Patrick Davis Karen Elliott Cassandra S. George Hannah E. Hanford Devapriya Chattopadhyay Steven J. Davis Magdalena Ellis William Donald George Jason W. Hanna Sweeta Chauhan Mary B. Day Aurora C. Elmore Teri Lynn Gerard Peter Hargrove Cynthia Chen Germari De Villiers William M. Engelbrecht Annie May Gerry Jessica Hark Daniel Childers Sarah L. Dean Ejiro Augustine Brian Gertsch David F. Harnsberger Lauren Chrapowitzky Sudeep Debnath Erharhaghen Kajari Ghosh Shelby Renae Harrell Hilary Christensen Brian DeBowes Sandra Amanda Erwin- Mike Gianetti Clinton Harris Francesca Cifelli Barbara A. Delaney Ball Kelly Gibson Erica Harris KimBeth Clayback Briana Delano Travis L. Estep Susan Gifford Joyce Anne Harris Christina E. Cloran Evan Delitsky Michael D. Etter Courtney D. Giles Jon E. Harvey Patrice Cobin Adam Dellinger Kristen Evancha Cyrus P. Gillett Emily Marie Hathaway Sarah Cogdill Kristyn Anne DeMarco Mark T. Evans Kate L. Gilliam Kevin Robert Hathaway Jonathan M. Cohen Michael Daniel D’Emic Meredith L. Faber Jonathan Asher Gillip Andrew Haveles Nolwenn Coint Cordy Dennison-Budak Siobhan Fackelman Ashley T. Gilomen Doug Hayes Larry E. Cole Jr. Matthew Sean DePan Troy Fadiga Poonam A. Giri Susan D. Hazlett Melinda D. Coleman Alexandra Derbawka Amber D. Falconer Danielle Glasgow Dru J. Heagle Joseph H. Collette Amy D. Devall Sean Keith Faulkner Jennifer Glaubius Sarah Heal Bryan Comey Olivia H. Devereux Skya Fawcett Erika E. Gleim William Heasom Sean Connolly Ratan K. Dhar Shara I. Feld Carol Jean Glennon Matthew W. Heels Michael J. Conrad Emanuele Di Tullio Kamilla Fellah Steven Goderis Katherine C. Herleman Katie A. Conroy Patrick J. Dickhudt Alejandro Fernandez- Ann Elizabeth Goewert Amy Laurene Herren Kristen L. Cook Samantha L. Dickman Martinez Andrea Luella Gohl Juan Sebastian Herrera Jordan L. Copeland Timothy J. Didlake Noah C. Ferree Jean-Philippe Goiran Rachel A. Hertog Elizabeth Coppla John Patrick Diggins IV Elizabeth Fidler Tori L. Gomez Jonathan Hess

GSA TODAY, JULY 2007 33 New Members: GSA Welcomes You!

Jamey Hiday Nick R. Jones Lawrence K. LaCroix Earl B. Manning Melanie Michalak Jack Hietpas Wade T. Jones Marc Laflamme Clayton Harland Mansfield Cyprien Mihigo Karri B. Hildebrandt Kellie D. Joyce Meghan H. Lamoreaux Jorge E. Marino Jim S. Mikochik Taihisa Hill Natalie Juda Carla J. Landrum Andrew S. Marquardt Justin Milardo William D. Hill Hun Bok Jung Jackie Langille Alexandra Joan Marrese Brett Daniel Miles Kelly N. Hillbun Matthew Cross Jungers Jeff Langman Sullivan Clint M. Miller John M. Hils Paul E. Kaelin Laurel Griggs Larsen Antonios Marsellos Elizabeth Miller Ferdinand Franziskus Michael J. Kalczynski Angela Marie Larson Justin D. Marsh Eric W. Miller Hingerl Andra Rebeka Kaleps Catherine Eileen Lash Pamela Ellen Marsh Lindsay Miller Thomas Hinterberger Jr. Michael T. Kandianis Simon Normann Lauritsen Candice Marshall Michael L. Miller Shelley E. Hofelich Bryan M. Kaproth Alexandra Lavers Fernando Antonio Martin Margaret S. Milman-Barris Matthew Robert Hoffman Christine Kassab Ashley M. Leger Jessica A. Martin Scott Minchak William Hoffman Erin Kay Heather Lehto Paul J. Martin Ashish Misra Jenna C. Hojnowski Lily C. Kay Stacey Leichliter Suzanne N. Martos Julie E. Mitchell Sven P. Holbik Caitlin Keating Ashley Elaine Lemasters Ian Martz Ross Mitchell Christopher R. Holland Jennifer L. Kelley Casee R. Lemons Jessie Masquelier Jun Mizuno Jesper C. Holst Amy Kelly Erika Lentz Scott A. Mata Michael P. Mobilia Sharon Elizabeth Holte Sev Kender Bennet Leon Scott Sean Matheson Mike Molnar Paul Stephan Hong Casey D. Kennedy Benjamin K. Lepesqueur Joshua C. Mathews Joe Monks Bobbi Hornbeck Adrienne Kentner Lisa Danielle Lesar Chris Matson Heather L. Monohan Lev Horodyskyj Joel J. Kenyon Jerrod Glenn Lessel Serena Matt Stephen A. Monsulick Andrew J. Horst Katie M. Keranen Jana Levison Elizabeth M. May Livia Marie Montone Devina L. Horvath Geoffrey John Keroti Jason Lewis David Mayer Dustin L. Moore Meredith Hoskins John Ketcham David Li Aaron Monroe Mayfield Stephanie J. Moore Cynthia Hotujec Harmain Khan Robert D. Likar Jr. Laura McCarthy Geoff Moret Juzhi Hou Adam Kiehn Angela N. Lilly Gillian Anna McCay Katherine L. Moretton Mark Houston Christopher A. Kilby Chandra Renee Lilly Nicole Marie McCloskey Patrick Morgan Christine M. Houts Susan Marlena Kilgore Christie D. Lindemann Anne L. McColloch Lindsey K. Moritz Heidi Anne Howe Nikki Killingsworth Christopher Eric Lindsey David Patrick McCormick II Erin Morley Michael Howley Jongsik Kim Christopher Little Victoria E. McCoy Joanna Rhian Morris Andrea Melissa Howson James W. Kimbrell Elizabeth Freeman Chase Lawrence McCraw Phil J. Morton Michael J. Hubbard Baird Lincoln King Littlefield Lindy Ellen McCulloch David Moscato Matthew Huber Nicole L. King Ganming Liu Jessica Autumn Sarah Moss Patrick J. Hudson Timothy Ray Kingsley Leslie Ann Livengood McCullough Paula Mouser Douglas E. Hughes Neil X. Kinnebrew Alexander S. Lloyd Andrew Tearle McDonald Marcelo Sebastián Moyano Michael L. Hughes Benjamin M. Kisner Kristen H. Lloyd Matthew Amos McDonald Brian J. Mumaw Luke Hunt Rita Klebesz Brandy Logan Michael McDonald Karan A. Mummigatti Debra Marie Hurwitz Deanna N. Klemash Patricia Logan Katie Lynn McDowell Jessica Mumphrey Genna Huston Jamie Kline Ashley McCleaf Long Brandon McElroy Michael Anthony Muniz Justin D. Hynicka Amanda Klingensmith Joshua Handfield Long Gregg McElwee Katherine Janice Chiotti Daniel Bryant Imrecke Katherine J. Knierim Nicholas D. Lonigro Ellyn M. McFadden Murray Isaac D. Irby Bernadette R. Knox Sara Lopez Jennifer L. McHarge Kori Andrel Murray Joseph Lee Islas Shannon Kobs Mohammad Lotfolah Eathan A. McIntyre Rachel M. Myers Levi Thomas Jackson Kamal Kolo Hamedani Ryan Christopher Reed A. Myers Courtland Jacob Ganganath Koralegedara Audrey Susan Loth McKellar Wesley B. Myers Kristin Halberg Jacob Dane Kormos Megan C. Loudermilk Ryan McKeon Amelia Nachbor Kristie Racquel Jacobs Julia Michelle Kotler Amanda C. Lough Ross B. McMann Rouhollah Nadri Jamie Marie Jastrab Rani Kottiath Jeremy Louisos Dianna Schulte Amanda Nahm Sue Jastrzembski Andrew Kousparis David M. Lovelace McMenamin Younkyeong Nam Olalekan Matthew Tom Koza Karen E. Low Meaghan E. McNeil Pramenath Narinesingh Jemilugba Erin R. Kraal Chris S. Lowry Ryan Oneil McPherson Aaron M. Nash Matt G. Jenkins Lindsey M. Kraatz Andrea J. Luebbe Devin McPhillips Faris J. Nassouri Melissa Jane Jenks Rebecca A. Kraft Aaron Jacob Lussier Lauren E. McPhillips Emily Naughton Maria H. Jenness Michael Kratz Robert Lyons Cristian R. Medina Andrew Neal Gonzalo Jiménez-Moreno Samantha M. Krause Matthew Paul Lyter Mohammad Harunur Sarah K. Needy Jin Jin Sarah Kreitzer Brandi Lee MacDonald Rashid Meer Emory J. Nelkie Preeya Jirutthitijaroen S. Ryan Krueger Luke Maddux Faisal Mehmood Amanda Brooke Newbold Justin Johns-Kaysing Hillary Kruger Michael Madison Maartje Lucia Melchiors Sifa Ephraim Ngasala Andrea Johnson Newton W. Krumdieck Kaitlin Clare Maguire Fred Mellott Sarah Nicholas Brady Johnson Laurel James Herb Maier Robert Menard Bradley A. Nichols Emmon Peter Johnson Krumenacker Chris V. Maio Michael Mengason Brian L. Nicklen Maureen Alice Johnson Alison Marie Krzyzewski Kanchan Maiti Ryan B. Mengel Wenming Nie Ty Johnson Zoe Kulakowski Lisa Majkowski Andrew Mention Daniel R. Nierenberg Hope Anne Johnston Donald Lewis Kunkel Jonathan R. Major Mandy Meriano Alex Nikulin Claudia M. Jones Marie Juliette Kurz Anna Makowski Daria E. Merwin John Niles Colin M. Jones John Alan LaBold Nathan Malcomb Adam Messner J.R. Noble Daniel Jones Donald E. Lacombe Stephen R. Malone Elisabet Joan Metcalfe Gaylord C. Noblitt

34 JULY 2007, GSA TODAY New Members: GSA Welcomes You!

James T. Nolan Michael J. Pickell Sarah Maureen Roberts Owen Philip Shufeldt Brian A. Swartz Stefano Normani Christine Marie Piela Emily M. Robinson Daniel Shugar Edward Michael Sweeney Leslie North Brian Pierce Ryan W. Robinson Paul Sideris Eric Sykes Robert Michael Nowak Carlie Pietsch Erin K. Roche Hillary M. Siener Aimee Szatkowski Julie A. Nowakowski Ryan W. Pinguely Anthony B. Rodriguez Karin Sigloch Eva Szilvagyi Hollie Oakes-Miller Rachel Pirot Kimberly Roe Drew Lorenz Siler Kellen Takenaka Christian Chijindu Obasi Shankar Babu Pokharel Coral Roig-Silva John Sime George Tangalos Michael O’Brien Eric James Pollard Stephen J. Romaniello Lee Simons Kevin Tarbert Tim O’Brien Andrew Joseph Poploskie Joy Abigail Rorrer Alka Singhal Christopher Milos Tasich Raul I. Ochoa Jeffrey C. Porcianko Tilman Roschinski Robert Sirianni Emilia L. Teige Ryan L. OConnell Rachel Potter Rebecca L. Roscoe Mark Sitton Christopher Michael James C. Odom Lucia Pou-Nickas Spencer B. Rose Danielle J. Sitts Terpolilli Sarah E. Ogburn Richard T. Powers Nicholas A. Rosenau Christina Skalit Eliseo Teson del Hoyo Francia Olaguera Titia Praamsma Jennifer C. Rote John Roma Skok Kristi Teter Mary Catherine O’Leary Vimal Roy Pradhan David A. Rotkowitz Jr. Lehne E. Slater Chris D. Therrien Stephanie Olen Tiffany Reneé Pratt William A. Rouse Christopher Milton Smart Shawn Charles Thieme Paul W. Oliver Jessi Pritchard Maitry Roy Moulik Jennifer L. Smedlund Jane Eleanor Thies Samantha Olney Nathan E. Pritchard Zoe Ruge Alex R. Smith Claire Y. Thompson Rene Olsen Austin Pryor Alexis Sabine Frank Cannon Smith Skye R. Thomson Jeffrey J. Olyphant Evan T. Pugh Amy Katherine Saccoccio Jessica L. Smith Jesse Thornburg Jamie Ong Jeffrey R. Pumo Ian Saginor Reid Smith Hal Raymond Tichenor Matthew Oreska Niklas Putnam Francky Saint-Ange Richard W. Smith Nicholas S. Tiedemann Ivan Orsic Dimitri Quafisi Soumitri Sarkar James Blake Smotherman Jacob A. Tielke Dayanidi Michelle Ortiz Turlough Quinn Luke David Sattler James Smotherman Dalayna M. Tillman Colleen R. O’Shea Raiza Quintero Lynne Saunders Margaret Snyder Lindsey Titus Joan M. Otahal Shannon Rabideau Lanora A. Sava Jason R. Soban Claire E. Todd Tsubasa Otake Jordan M. Rader Mitchell R. Scharman Holly Sobocinski Nicholas G. Toole Mike Otis Mohammad Wahidur Tiffany L. Schillereff Mike J. Solt Emma Torresen Justine Owen Rahman Peter C. Schillig Michael W. Sorensen Mark A. Trees Aysen Ozkan Daniel A. Rajter Mark Theodore Schlottke Sindia Maria Sosdian Nicole Trenholm Holly D. Packard Jana Raksnis Shane Schoepfer Jessica Sousa John D. Trimble Benjamin Luke Padgett Santhosh Kumar Kristin Schroeder Christopher J. Spencer Andrew Trzaskus Diomaris Padilla Ramachandran Matthew Lee Schroeder Lev Spivak-Birndorf Sofia Ria Maria Tuhkanen Bryan J. Page Benjamin J. Ramaker Cari Schruth Alistair Sponsel Jason Turgeon Dustin Page Daniel Ramsay Jonathan Schueth Roy Hill Srymanske Heather Turnbull Nathan D. Painter Jonathan Rayburn Christopher J. Schulz Kevin Stack Gene Turner Ravi C. Palakodeti Jasmin Raymond Herald Schulz Timothy Stahl Sheldon P. Turner Dean P. Palmer Jr. Mandy L. Razzano Wesley Schumacher Jane Stammer Ikenna I. Umechuruba Annie P. Palya Darryl Allen Reano David Schumaker Jutta Camilla Stark Jane Uptegrove Katherine P. Pankowski Mike Reddin Hans F. Schwaiger Tammy Diane Starks Nicholas R. Valentour Simone Pannike Adam Reese Clint Scott Leo G. Stearns Lauren E. Van Arsdall Nicholas C. Papacostas Carrie L. Register James Scott Jason H. Stephens Aaron C. Van Dolah Emily V. Parker Samuel B. Reid Rachel Scudder Hilary Stevens Ashley E. Van Hoose Karen Ann Parker James D. Reider Joe Scyphers III Rachel A. Stevens Tim Vance Jen Parks Timothy James Reilly Margaret Janette Seibel Heather A. Stewart Amy L. Vandiver Michael J. Parks Jesse R. Reimink Linda Sekura Jason Stewart Erik F. VanZant Luis A. Parra Nick Reittinger Adrianna Marie Semione David B. Stiefel John E. Vargo Paul Christian Parrish Karine Renaud Julie M. Sengstacken Josef B. Stiegler Amber R. Vasquez Morgan V. Pate Barry L. Reno Maria de Lourdes Serrano Clare M. Stielstra Rob Andrew Venczel Niall William Paterson Paul Eric Reyerson Taryn Michelle Kimberly L. Stilson J. Patrick Venturella Gerald Wesley Patterson Scott A. Reynhout Serwatowski Marianne Louise Stoesser Robert M. Vest Rebecca L. Pawl Peter Charles Reynier Alan Bryan Shabel Erin Ann Stoesz José Israel Villarreal Robert C. Payne Merilie Alice Reynolds Annie Shao Rebecca Stokes Barragan Tara Peavy Christina Rhoads Salah U. Sharif Stacy Story Hasley Vincent Michael Peet Abagail Rhode Kathleen Elizabeth Christina Stout James Vincett Stephen Pels Gwyn Rhys-Evans Sharman Sarah E. Strano Jakob Vinther Rachel Perez Kelly Leigh Richardson Meredith S. Sharpe Ona Marie Strikas Jennifer R. Vogel Rafael Jose Perez Joseph Riddell Cindy M. Shaw Darrin Strosnider Emily Voytek Jennifer Alyssa Perry Sarah E. Rilling Sean A. Shaw Jason Mathew Sturms Brian J. Wachter Yves Robert Personna Brandy A. Rinck Erin K. Shea Nirmal Subedi Rachelle R. Wagner Tyler Peters Michael J. Ritorto David Sherwood Makoto Sugihara Ingo Wahnfried Michael Petersen Christina Ritter Crystal A. Sherzer Yinghui Sui Erin L. Walden Carlye Peterson John M. Rivers Xuhua Shi Alexandra Joan Marrese James Maxwell Walker Maaike Petrie Tracy A. Roach Joshua E. Shinpaugh Sullivan Adam Wallace Andrew Petter Michael Robbins Gloria J. Shook Colleen Sullivan Claire Marie Waller Sheena A. Philbrook Clint D. Roberts Laura Short Lauren Sutton Kara Walton Damian Piaschyk Leah Roberts Lisa Short Candice N. Swaim Matthew C.F. Wander

GSA TODAY, JULY 2007 35 New Members: GSA Welcomes You!

Jie Wang Donald Andrew Whyte Jonathan Woodruff Affiliate Members Melissa Keevil Ian Ware Gangani G. Wijewardena Bryan Woods Drew F. Alfgren Kirsti J. Kellogg Davis Morgan Warren Geoffrey L. Wikel Melissa H. Woods Julia S. Bowler Yehuda L. Klein Shalina Warrior Erica Maj Wiken Cynthea M. Wrike Daniel H. Braden Al E. Kraus Laura E. Waters Anne Wiley Kaiwen Wu Dianne H. Bukata Rakesh Kumar Will Waters Diane Elaine Wilford Dominick Andrew Courtney Ciapciak Mary Lincoln Amy A. Watson Benjamin C. Wilkins Wytovich Michael J. Colella Perminder Singh Malik Thomas Watson Amy Jo Williams Minhua Xu Linda A. Collins Karl Mandry Rhonda Weakland Gretta Williams Qiang Yang Sarah G. Craig Diljeet Singh Mararah John Matthew Webb Frank L. Willis Zalmai Yawar Michael Delaney Rodney Carl Martin Jr. Mathew D. Webb Veronica Willmott Prasanta Malati Yeluru John W. Delano Michael G. Medberry Nathan D. Webb Kristin Wilson Rakesh Reddy Yeredla Grenda O. Dennis Charles Ray Newsom Daniel J. Weber Luke Wilson Sara Yerger Danielle Dozoretz Sarah Pipkin Janet P. Weidner Matthew Wingert Aaron C. Yingling Tim Dunnigan Paul Regel David Weinstein Eric J. Winslow Nicolas E. Young Mark Russell Finch Tracey L. Reimer Lauren Ashley Weir Kelsey Winsor Shaahin Zaman Donald H. Friedman Katherine School Tobias Weisenberger Meredith Wismer Paula Zelanko Terri Garside Bill Schultz Ryan M. Weller Christine Leigh Wissink Mark Joseph Zelek Ingrid Gnerlich Mark Richard Siler Colleen M. Wells Jacalyn Marie Wittmer Rebecca Anne Zentmyer Matthew E. Gross Carol L. Snodgrass Lisa W. Welsh Alicja Jolanta Wojnar Changyong Zhang Charles Hagen Don Stemrich James H. Wesolowski Davina Wolfe Chi Zhang Jennifer Hardi Julia Styrczula Scott Wessels Megan Wolfe Li Zhang Jamie Lynn Harrison Bill Tilden Nicole West Nicholas P. Wolff Baojuan Zheng George Hofman Tareq Tosson Kathleen Weyforth Jill H. Womack Guangsheng Zhuang Catherine Horadam Edward J. Valauskas Kathryn Mae Whalen Elizabeth Wong Geoff Zimmel Rahul Jain Kris D. Van Alstine Patrick V. Wheatley Amanda A. Wood Cynthia A. Zimmerman Deepak Joshi Amy Vandiver Michael David Whitson Kammie Rechelle Wood Linda Zinnikas Tom Kaye Wallace T. Ward Lin Watkins

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36 JULY 2007, GSA TODAY GSA OFFICERS AND COUNCILORS

®

PRESIDENT VICE PRESIDENT TREASURER PAST PRESIDENT John M. (Jack) Sharp Jr. Judith Totman Parrish Robbie R. Gries Stephen G. Wells University of Texas University of Idaho Priority Oil and Gas LLC Desert Research Institute at Austin Moscow, Idaho Denver, Colorado Reno, Nevada Austin, Texas

COUNCILOR: 2004–JUNE 2008 COUNCILOR: 2005–JUNE 2008 COUNCILORS: JULY 2007–JUNE 2011 Darrel S. Cowan Jonathan G. Price Monica E. Gowan University of Washington Nevada Bureau Mines & Geology University of Canterbury Seattle, Washington Reno, Nevada Christchurch, New Zealand Jacqueline E. Huntoon COUNCILORS: 2005–JUNE 2009 COUNCILOR (2006–JUNE 2008) Michigan Technological University Houghton, Michigan John W. Geissman Elena Centeno-Garcia G. Randy Keller University of New Mexico Universidad Nacional Autónoma de University of Oklahoma Albuquerque, New Mexico México (UNAM) Norman, Oklahoma Nancy J. McMillan Mexico D.F., México New Mexico State University Las Cruces, New Mexico COUNCILORS (JULY 2006–JUNE 2010) Jill S. Schneiderman David Applegate Vassar College U.S. Geological Survey Poughkeepsie, New York Washington, D.C. Jerome V. DeGraff USDA Forest Service Fresno, California Diane R. Smith Trinity University San Antonio, Texas

Available at the GSA Bookstore

Special Paper 414 GSA Sales and Service

Styles of Continental Contraction P.O. Box 9140, Boulder, CO 80301-9140, USA edited by Stefano Mazzoli and Robert W.H. Butler +1-303-357-1000, option 3 toll-free: +1-888-443-4472 • fax: +1-303-357-1071 SPE414, 184 p., ISBN-13 978-0-8137-2414-0 $60.00, member price $42.00

GSA TODAY, JULY 2007 37 GSA MEMORIALS: Keep The Memories Alive!

GSA publishes a memorial volume devoted to deceased the person you are memorializing, either as a high-resolu- GSA members each year. These memorials are written by tion .jpg attached (as a separate file) to your e-mail or a associates, friends, or relatives of those who have passed glossy photograph via post. Complete guidelines for compil- away. Each memorial is valuable and essential to us all for ing your memorial are at www.geosociety.org/grants/index. learning more about the fascinating individuals who have htm. Memorialists and family members of the deceased been part of GSA. receive complimentary copies of the typeset memorial before If you would like to honor a friend or colleague with a it is included in the bound, published volume. memorial, please send it as a Microsoft Word–compatible The following is a list of GSA members who passed away file via e-mail to [email protected]. The text should be between January 2004 and April 2007 for whom no memo- limited to ~2,000 words and include a selected bibliography rial has been received. Bold names signify those who of the decedent’s works in the earth sciences. Published passed away in 2006–2007; asterisks indicate a memorial is memorials also include a photo, so please send a picture of in progress.

Samuel S. Adams Jose R. Dominguez W.G.Q. Johnston Craig W. Oyen Ira D. Taylor Howard F. Albee William J. Domoracki James R. Jones Elmer D. Patterson Richard D. Terry Thomas W. Amsden Renaud M. DuDresnay Michael A. Jordan Wilferd W. Peak Robert P. Thomas Robert E. Baker Edward J. Dwornik Maurice E. Kaasa Jr. Donald W. Peterson Harry Ludwig Thomsen Morris A. Balderman Ernest G. Ehlers James Edward Kahle Jack W. Pierce Joshua I. Tracey Jr. Thos. D. Barber Gus K. Eifler Jr. Viktor P. Kahr Wallace S. Pitcher Frank W. Trainer David F. Barnes Phillip Eisenstatt Thor H. Kiilsgaard Jean Piveteau Mortimer D. Turner Robert H. Barnes Donald P. Elston George F. Koehler Frederick H. Pough Sherwood D. Tuttle Robert Taylor Bean Ronald F. Emslie Otto C. Kopp Anthony Qamar Neil H. Twelker Allan P. Bennison Gregorio M. Escalante Roger L. Larson John R. Rand Hiroshi Ujiie Andrew W. Berg Rhodes W. Fairbridge A. William Laughlin Robert L. Redmond Wilhelmus T. van Robert R. Berg Pow-Foong Fan Fitzhugh T. Lee Edward L. Reed Middelaar Morton Bigger Jr. Oscar S. Fent Theodore D. Lee John E. Reesor Robert A. Vargo John W. Blagbrough Erik Flugel S. Benedict Levin John B. Reid Jr. Newell F. Varney Richard R. Bloomer Jane L. Forsyth Robert M. Linsley Jacques R. Renault Robert E. Wallace Ernest W. Blythe Jr.* John A. Fortescue Helen Tappan Loeblich Richard Rezak A.L. Washburn Bruce A. Bolt Charles D. Foss John A. Logan Richard S. Rhodes II J. Lloyd Watkins Thomas S. Bond Sidney S. Galpin William W. Lomerson Ernest I. Rich Karen Weber Manuel G. Bonilla Lynn Glover III Frederic B. Loomis Donald H. Richter Robert A. Weeks Francis R. Boyd Jr. Andrew E. Godfrey Gary A. Lund Eugene C. Robertson Wilfred R. Welsh James C. Bradbury Robert Y. Grant Edward M. MacKevett Forbes Robertson David Archer White William P. Brosge Sheldon K. Grant H.W. Mallery G.D. Robinson David C. White Aart Brouwer Frank L. Greene John A. Mann John Rodgers William A. White H. Gassaway Brown III Eugene W. Grutt Jr. Kathleen Mark Alexander B. Ronov Peter V. Wiese Ralph S. Brown Charles V. Guidotti* Sergio D. Matheos Mark S. Roth Alwyn Williams Robert P. Bryson William C. Gussow James A. McCarthy Nancy G. Ryan George Arthur Williams Reuben G. Bullard Allan M. Gutstadt Barney C. McCasland Jr. Nathaniel McLean Sage Jr. Clifford L. Willis Martin Burkhard Michel T. Halbouty Bill J. McGrew Martin N. Sara Robert W. Wilson Donald H. Cadwell Jake M. Hancock Edith M. McKee Dwight L. Schmidt Thomas A. Wilson J. Greg Cahill Byron S. Hardie Digby Johns McLaren Jack Edward William J. Winegard Ralph S. Cannon Jr. P. Edgar Hare Jerrold L. McNey Schoellhamer Erhard M. Winkler Carl E. Carlson W. Brian Harland Sean B. McShane Werner F. Schreyer Harold A. Winters Miguel Carrillo* Elbert Nelson Harshman Fred J. Menzer Sigmund D. Schwarz Roger G. Wolff John J. Chapman William B. Heroy Jr.* Louis H. Michaelson Nicholas J. Shackleton Daniel E. Wonderly Robey H. Clark Leo A. Herrmann John C. Mickelson Robert P. Sharp Rainer Zangerl Lee Claussen H. Stanton Hill Marcus E. Milling Jack A. Simon Aiyun Zhang Stanley D. Conrad William L. Hiss William R. Moran James E. Slosson Bruce C. Corliss Alan D. Hoagland Anthony E.L. Morris Clay T. Smith J. Campbell Craddock David L. Hodgson David A. Morris Donald N. Smith Paul E. Damon John H. Hoke Henry M. Morris Julian Soren Peter P. David Victor F. Hollister Roger B. Morrison John B. Squyres Tudor T. Davies N. King Huber Ernest H. Muller Harold K. Stager George H. Davis Stuart P. Hughes Paul H. Nichols Robert H. Stebbins Robert W. Decker George N. Huppert Tor H. Nilsen Maria I. Stercho David M. Delo C.S. Hurlbut Jr. Ogden W. Nine Jr. Joanne L. Stewart Thomas W. Dibblee Jr. Kermit Jamison James J. Norton Fred L. Stricklin Jr. Robert F. Dill Charles B. John William A. Oliver Jr. John E. Szatai

38 JULY 2007, GSA TODAY GSA MENTORING PROGRAMS: A Win-Win Opportunity

The Geological Society of America® MENTORS HAVE COMMENTED: public businesses and government agen- runs two mentoring programs at each “Thanks for the invitation to participate cies—represented a broad range of of its Section Meetings, the Roy J. in this luncheon. I really enjoyed meeting backgrounds, education, experience, Shlemon Mentor Program in Applied the students … it was a win-win situation and expertise. This year, the Shlemon Geology and the John Mann Mentors Program funds provided mentor experi- in my book!” in Applied Hydrogeology Program. ences to 444 students through 76 men- These popular events, supported by the “I have enjoyed volunteering as a men- tors; the Mann Program funds to 168 GSA Foundation through gifts from Roy J. tor and realize the significance of shar- students through 32 mentors. For both Shlemon and John Mann, are designed to ing information with students.” programs, connections were made that extend the mentoring reach of individual “The students’ questions were thought- resulted in part-time or full-time posi- professionals from applied geology. provoking, and they made me realize tions for a number of students. The programs provide a forum for what a satisfying job I’ve got. I’d like to The GSA Mentoring Program grate- undergraduate and graduate students do this again!” fully acknowledges these mentors for interested in applied geology or hydro- STUDENTS HAVE COMMENTED: their individual gifts of time and for geology as a career to participate in sharing their insight with GSA’s student informal conversation with professionals “It was great to meet professionals and members. currently practicing in these fields. These to hear from them what they are looking programs are relaxed, small-scale, for in employee candidates.” To get more information about focused events that include a free meal “This program is a great idea. It is not these programs, or to be a mentor for all participants. often that we get the opportunity to speak for a future program, contact The 2007 season was exceptional. The with professionals in our field.” Jennifer Nocerino mentor volunteers—from private and “This program was very enlightening.” [email protected].

The Roy J. Shlemon Mentor Program in Applied Geology

NORTHEASTERN SECTION Marian Lupulescu Eric J. Hawkins Ronald J. Wallace Fred E. Bickford New York State Museum Geoscience Recruiting Team, Georgia Dept. of HydroSource Associates Inc. Albany, N.Y. U.S. Dept. of the Interior Natural Resources Ashland, N.H. Liz Martin New Orleans, La. Atlanta, Ga. Gale C. Blackmer AMEC Ron Herrygers Paul Weaver DCNR Bureau of Topographic Westford, Mass. Herrygers Environmental Trigon Engineering and Geologic Survey Susan G. Price Services Consultants Inc. Middletown, Pa. Murphy Risk Services Lexington, S.C. Greensboro, N.C. William C. Burton Barrington, N.H. John D. Kiefer Marion Wiggins Volcano Hazards Program, Stephen J. Urbanik Kentucky Geological Survey Vulcan Construction Materials U.S. Geological Survey New Jersey Dept. of Lexington, Ky. Winston-Salem, N.C. Reston, Va. Environmental Protection Barry R. Levine Bill Witherspoon Helen L. Delano Trenton, N.J. City of Memphis Division Fernbank Science Center, Pennsylvania Geological Survey Richard A. Volkert of Public Works DeKalb County Schools Middletown, Pa. New Jersey Geological Survey Memphis, Tenn. Atlanta, Ga. John N. Dougherty Trenton, N.J. Helaine Walsh Markewich Richard M. Wooten Camp, Dresser and McKee Thomas K. Weddle U.S. Geological Survey North Carolina Edison, N.J. Maine Geological Survey Atlanta, Ga. Geological Survey Swannanoa, N.C. Frank Getchell Augusta, Maine Paul G. Nystrom Jr. South Carolina Geological Leggette, Brashears & David R. Wunsch NORTH-CENTRAL and Survey Graham Inc. New Hampshire SOUTH-CENTRAL SECTIONS Columbia, S.C. Ramsey, N.J. Geological Survey (Joint Meeting) Concord, N.H. Valerie Reynolds Susan D. Halsey Philip R. Ames National Museum Admiral Coastal Consulting Peabody Energy–Midwest SOUTHEASTERN SECTION of Natural History Pine Beach, N.J. Group William Andrews Washington, D.C. Joseph Hatcher Evansville, Ind. Kentucky Geological Survey Craig L. Sprinkle PaleoWorld Research Kevin James Bailey Lexington, Ky. CH2M HILL Foundation, Garfield GeoCertified LLC Atlanta, Ga. County Museum Dennis E. Brunner Shawnee, Kans. Jordan, Mont. ECS Southeast LLC Marilyn Suiter Joseph Dom Marietta, Ga. National Science Foundation Steve Kluge Kansas Dept. of Health and Arlington, Va. Fox Lane High School and William C. Burton Environment Purchase College–SUNY Volcano Hazards Program, Chris Tacker Topeka, Kans. Bedford, N.Y. U.S. Geological Survey North Carolina Museum Reston, Va. of Natural Sciences Raleigh, N.C. GSA TODAY, JULY 2007 39 David W. Foster Lynn J. Moses ExxonMobil Exploration Washington State Dept. The John Mann Mentors in Applied Hydrogeology Program Company of Transportation Houston, Tex. Olympia, Wash. NORTHEASTERN SECTION NORTH-CENTRAL and Roger Lamb Nathan Moxley Thomas S. Bobowski SOUTH-CENTRAL SECTIONS Environmental Resources Landau Associates Nobis Engineering Inc. (Joint Meeting) Management Edmonds, Wash. Concord, N.H. D. Douglas Haney Overland Park, Kans. Patricia Louise Reed Michael R. Burke MKEC Engineering Shane Lyle HartCrowser Inc. JGI EASTERN Inc. Consultants Inc. Kansas Geological Survey Seattle, Wash. Manchester, N.H. Overland Park, Kans. Lawrence, Kans. Julia E. Turney John N. Dougherty Michael J. (Mike) Kirby Larry “Boot” Pierce King County Dept. Camp, Dresser & McKee (CDM) Shaw Environmental & Geological Survey Program of Transportation Edison, N.J. Infrastructure Inc. Overland Park, Kans. Rolla, Mo. Seattle, Wash. James M. Emery Andrea Prince Emery & Garrett Sam A. McCormick ROCKY MOUNTAIN SECTION URS Corporation Groundwater Inc. Coffeyville Resources LLC Overland Park, Kans. Rick Allis Meredith, N.H. Kansas City, Kans. Utah Geological Survey David B. Saja Frank Getchell Richard Shields Salt Lake City, Utah Cleveland Museum Leggette, Brashears & Installation Restoration Program of Natural History Larry W. Anderson Graham Inc. Fort Riley, Kans. Cleveland, Ohio U.S. Bureau of Reclamation Ramsey, N.J. Susan Stover Denver, Colo. Richard Shields Susan G. Price Kansas Water Office Installation Restoration Program Mario V. Caputo Murphy Risk Services Topeka, Kans. Fort Riley, Kans. Mt. San Antonio College Barrington, N.H. Margaret Townsend Walnut, Calif. Lisa Tholl Charles Race Kansas Geological Survey URS Corporation Jessica Castleton Tetra Tech NUS Inc. Lawrence, Kans. IGES Wilmington, Mass. Overland Park, Kans. CORDILLERAN SECTION Bluffdale, Utah Paul Rydel Gerrit R. Bulman CORDILLERAN SECTION Benjamin L. Everitt Sanborn, Head & CH2M HILL Eric Baer Consulting Geologist Associates Inc. Deerfield Beach, Fla. Highline Community College Ivins, Utah Concord, N.H. Sue Culton Kahle Geology Program Becky J. Hammond Tim White U.S. Geological Survey, Des Moines, Wash. U.S. Dept. of the Interior– Sanborn, Head & Washington Water Science Ellen Morris Bishop Bureau of Land Management Associates Inc. Center Oregon Paleo Lands Institute St. George, Utah Concord, N.H. Tacoma, Wash. Fossil, Ore. Carol A. Hill David R. Wunsch Marcia Knadle Bruce Norman Bjornstad University of New Mexico New Hampshire U.S. EPA Region 10 Battelle–Pacific Northwest Albuquerque, N.Mex. Geological Survey Seattle, Wash. National Jeffrey R. Keaton Concord, N.H. Richland, Wash. MACTEC Engineering and William E. Lum II Marshall W. Deacon Consulting Inc. SOUTHEASTERN SECTION Kitsap County Health District EnCana Oil & Gas Los Angeles, Calif. Micahel Crump Bremerton, Wash. Denver, Colo. William R. Lund Ozark–St. Francis Dan McShane Robert H. Filson Utah Geological Survey National Forests Stratum Group Green River Cedar City, Utah Russellville, Ark. Bellingham, Wash. Community College Norbert T. Rempe C.W. Fetter Joel W. Purdy Auburn, Wash. Waste Isolation Pilot Plant Consultant GeoEngineers Inc. Michael A. Fisher (WIPP) Hilton Head, S.C. Port Orchard, Wash. Gail G. Gibson U.S. Geological Survey Carlsbad, N.Mex. ROCKY MOUNTAIN SECTION Menlo Park, Calif. John W. Rold Florida Community College Jacksonville, Fla. Kenneth E. Kolm Chad Hults Consultant ARCADIS U.S. Inc. Dan Harman U.S. Geological Survey, Lakewood, Colo. Golden, Colo. Alaska Science Center Phil Stoffer Ground-Water Services Inc. Anchorage, Alaska Kennesaw, Ga. John W. Rold U.S. Geological Survey Consultant Barry R. Levine Cliff Knitter Menlo Park, Calif. Lakewood, Colo. Golder Associates Inc. City of Memphis Division Susan E. Tanges Paul K.M. van der Heijde Redmond, Wash. Southland Geotechnical of Public Works Memphis, Tenn. Heath Hydrology Inc. Brian Landau Consultants Boulder, Colo. King County Dept. of Natural El Cajon, Calif. Jerry L. Mallams Resources and Parks A. Wesley Ward Jr. Southwest Florida Water Seattle, Wash. U.S. Geological Survey Management District Robert L. Logan Tucson, Ariz. Brooksville, Fla. Washington Dept. of Natural Grant C. Willis Craig L. Sprinkle Resources Utah Geological Survey CH2M HILL Olympia, Wash. Salt Lake City, Utah Atlanta, Ga. Mark P. Molinari Janice P. Wittstrom URS Corporation Mount Royal College Seattle, Wash. Calgary, Alberta

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AL SOCIET IC Y G O O F L A O M E E G R

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Furthering the Influence of Earth Science Groundbreaking Articles for Furthering the Influence of Earth Science on GROUNDWORK: Education, Policy, Planning, and Funding

GSA Today seeks articles that lay the groundwork for fur- (2) a short article encourages readers to engage and thering the influence of earth science on education, policy, seek more information. planning, and funding. Articles can include in-depth geoscience ❸ Color figures may be included at no cost to authors. commentary, short observations and analysis of hot topics, and discussion of policy news and issues. ❹ GSA Today science editors will be responsible for review and acceptance of the articles. CHARACTERISTICS OF A “GROUNDWORK” ARTICLE: ❺ Frequency: Accepted articles will be published on a ❶ The printed article should be a complete, stand-alone space-available basis. article. (Ongoing or serial commentary or meetings summaries are not appropriate for this series.) To submit a “Groundwork” article, send your manuscript ❷ Length: No longer than 1400 words with two small and figures via e-mail to GSA Today Science Editors figures or 1600 words with one figure. The philosophy Stephen Johnston, [email protected], and David Fastovsky, behind this is twofold: (1) keeping an article short can [email protected]. increase the clarity and quality of the writing; and

GSA TODAY, JULY 2007 41 View classified and GeoMart ads online at www.geosociety.org/advertising.htm

and research interests, and the names and addresses small-town setting southeast of St. Louis. SIUC is seek- Positions Available of three references to: Alison Spongberg, Chair, Search ing to enhance interdisciplinary research as it strives Committee, Earth Surface Processes, Department of to be a top 75 public research university (http://news. DEPARTMENT OF ENVIRONMENTAL SCIENCES Environmental Sciences, Mail Stop #604, University siu.edu/s150/). The Geology Department has a full-time THE UNIVERSITY OF TOLEDO of Toledo, Toledo, OH 43606-3390. The University of faculty of 10 with about 40 undergraduate and 30 grad- The Department of Environmental Sciences at The Toledo is an equal opportunity, equal access, affirmative uate students and offers Bachelor and Master degree University of Toledo invites applications for a tenure action employer and educator. M/F/V/D are encouraged programs in geology and participates in the interdis- track position at the Assistant Professor level in Earth to apply. For more information visit the Departmental ciplinary Environmental Resources and Policy Ph.D. Surface Processes to complement existing univer- Web site, www.eeescience.utoledo.edu. program. SIUC has programs and facilities involved sity and departmental strengths in ecology, hydrology, with energy and mineral resources research that pro- geology, geography and environmental engineering. GEOPHYSICS vide opportunities for interdisciplinary studies including Competitive candidates must have a Ph.D. in the geosci- SOUTHERN ILLINOIS UNIVERSITY CARBONDALE the Coal Research Center and the Mining and Mineral ences or a closely related field; postdoctoral experience The Department of Geology at Southern Illinois Resources Program. is desirable. The successful candidate will be expected University Carbondale invites applications for a tenure- For further information, please visit our comprehen- to provide instruction at the introductory level for non- track position in Geophysics at the rank of assistant sive website www.science.siu.edu/geology. SIUC is majors as well as for the undergraduate and graduate professor with a start date of 16 Aug. 2008. Preference an affirmative action/equal opportunity employer that programs in geology and environmental science. will be given to candidates with post-doctoral expe- strives to enhance its ability to develop a diverse faculty Our department is a rapidly growing, multidisci- rience. The applicant should demonstrate the exis- and staff and to increase its potential to serve a diverse plinary, research-oriented academic unit with 23 ten- tence of, or potential for developing, an internationally student population. All applications are welcomed and ured/tenure-track full-time faculty. The primary research recognized, externally funded research program. The encouraged and will receive consideration. focus envisioned for the candidate is on physical inter- candidate’s research interest is open, but we pre- actions at the land-lake-air interfaces, with application fer a Geophysicist who will complement our existing to the Lake Erie Basin. Applicants should have expertise strengths. The successful applicant is expected to USTAR POSTDOCTORAL FELLOWS in the application and utilization of remote sensing and teach courses in introductory geology and undergradu- UNIVERSITY OF UTAH computerized geospatial analysis in their research. ate and graduate courses in their area of expertise. The University of Utah invites applications for two post- Research opportunities are particularly promising in Normal teaching load is one to two courses per semes- doctoral fellowships jointly appointed between the the western Lake Erie basin, where the confluence of an ter. Applicants must hold a Ph.D. in geology or a related Energy & Geoscience Institute (EGI) and the Department intensively used agro-urban watershed and an economi- field or show that they will complete all degree require- of Civil and Environmental Engineering. We seek highly cally and ecologically critical water body produce an ments by the time of appointment. qualified individuals with research experience and inter- ideal natural laboratory for environmental research. This Review of applications will begin 1 October 2007 and est in the science and engineering of CO2 sequestration person will be expected to develop an externally funded continue until the position is filled. Applicants should related to climate change mitigation. The appointments research program as well as collaborate with colleagues submit a curriculum vitae, a statement of teaching are jointly funded by the Utah Science, Technology and in ongoing large scale, multidisciplinary research proj- and research interests, and the names and addresses Research initiative (http://ustar.utah.gov) and the Energy ects including watershed investigations, remediation of at least three referees to: Dr. John Sexton, Search & Geoscience Institute (http://egi.utah.edu). The Utah and wetlands restoration. Committee Chair, Department of Geology, Mail Code Science, Technology and Research (USTAR) Economic It is anticipated that this position will begin in mid- 4324, Southern Illinois University Carbondale, 1259 Development Initiative is a prestigious program initiated August 2008. Review of applications will begin 5 October Lincoln Drive, Carbondale, IL 62901; fax: +1-618-453- by the state of Utah and designed to spur job growth 2007 and continue until the position is filled. Salary, fringe 7393; e-mail: [email protected]. and economic development. These USTAR Postdoctoral benefits and start-up funds are competitive. Applicants Southern Illinois University Carbondale is a large, Fellows will help design, deploy and lead the science and should submit curriculum vitae, descriptions of teaching research-oriented institution situated in a pleasant engineering of six major field projects of underground

In Situ–Produced Cosmogenic Nuclides and Special Paper 415 Quantifi cation of Geological Processes In Situ–Produced Cosmogenic y ed b e, Edit Siam l L. lès, Lione our L. B wn Edited by Lionel L. Siame, Didier L. Bourlès, Nuclides and Quantifi cationidier of Bro s D . ik T d Er Geological Processe an and Erik T. Brown

In situ–produced cosmogenic nuclides can provide chronologies of environmental change over the past few thousand to several millions of years and may be used to quantify a wide range of weathering and sediment transport processes. These nuclides are thus now used across a broad spectrum of earth science disciplines, including pa- leoclimatology, geomorphology, and active tectonics. This book is organized around sections that focus on specifi c aspects of the utilization of cosmogenic nuclides in earth sciences: (1) development of new methods for application of in situ–produced cosmo- genic nuclides (burial dating methods, extending their utilization to carbonate-rich and mafi c environments); (2) glacial geology (Laurentide Ice Sheet, northern Alps); (3) active tectonics, focusing on applications to constrain slip rates of active faults in Asia (Tibet and Mongolian Gobi-Altay); and (4) landscape development (quantifying sediment pro- duction or erosion rates and processes and application of exposure dating to landslides in Hong Kong).

SPE415, 158 p., ISBN-10 0-8137-2415-5; ISBN-13 978-0-8137-2415-7

CLASSIFIED ADVERTISING $60.00, member price $42.00

GSA SALES AND SERVICE • P.O. Box 9140, Boulder, CO 80301-9140, USA www.geosociety.org +1.303.357.1000, option 3 • toll-free +1.888.443.4472 • fax +1.303.357.1071

42 JULY 2007, GSA TODAY View classified and GeoMart ads online at www.geosociety.org/advertising.htm geological CO2 injection and storage, with sites in Utah, in Quaternary geology/surficial processes through Wyoming, Colorado, New Mexico and Texas. Within this field-based investigations, including geologic mapping. aggressive carbon sequestration field program, the mini- Focusing on the Quaternary deposits of Wisconsin, con- mum size deployment is injection of 75,000 tons/yr, with ducting research in glacial geology, sedimentology, geo- others approaching 1,000,000 tons/yr. chemistry, geochronology, geomorphology, or engineer- A Ph.D. at the time of appointment in civil and envi- ing geology. Work in cooperation with other WGNHS ronmental engineering, hydrology, earth and environ- Staff, University personnel and collaborate with local, mental science, or a closely related field is required, as state, and federal agencies that have interests in geol- well as a significant record of research productivity. We ogy, geophysics, hydrogeology, and mineral resources. seek individuals who complement existing strengths Applications will be reviewed beginning 8/15/2007. For a at EGI, the Department of Civil and Environmental complete position description and how to apply, please Engineering, and who can work collaboratively in the visit www.uwex.edu/ces/hr. CLASSIFIED ADVERTISING Carbon Engineering group (http://egi.utah.edu/CO2) at AA/EEO employer the university. We especially seek candidates with expe- rience in numerical modeling, including coupled mul- tiphase simulation modeling and/or reactive transport modeling and/or coupled hydrogeomechanical model- NEW HIRES IN ing at multiple spatial scales. We also seek individuals GEOSCIENCE EDUCATION with significant experience in laboratory experimental Classified Rates—2007 work related to high pressure, high temperature mul- Ads (or cancellations) must reach the GSA Advertising The Jackson School of Geosciences seeks tiphase flow. Field-experience is a plus. Our research office no later than the first of the month, one month program offers competitive salaries and opportunities prior to issue. Contact Advertising Department: individuals attracted to the challenge of for career advancement. To apply, please send a CV, [email protected]; +1.800.472.1988 x1053; geoscience education at the university relevant publications and the contact information of +1.303.357.1053. Complete contact information, includ- three references to Energy & Geoscience Institute Attn: ing mailing and email address, must be included with all level. As leaders in geoscience pedagogy, USTAR at 423 Wakara Way #300, Salt Lake City, UT correspondence. 84108. Applications will be accepted until the posi- candidates should excel as teachers and tions are filled. No e-mail applications accepted. For Per line each developers of courses set in field, laboratory, detailed inquiries, contact Prof. Brian J. McPherson, Per Line for addt’l month [email protected]. Classification 1st month (same ad) and lecture environments. The new hires Positions Open $7.75 $7.50 may also contribute to the Jackson School's Opportunities for Students QUATERNARY GEOLOGIST/SURFICIAL First 25 lines $0.00 $4.00 commitment to educate the wider PROCESSES ASSITANT PROFESSOR, WISCONSIN additional lines $4.00 $4.00 community of the public and K-12 GEOLOGICAL AND NATURAL HISTORY SURVEY, Situations Wanted $3.50 $3.25 (WGNHS) MADISON, WISCONSIN pre-college students. The Department of Environmental Sciences, UW- To estimate cost, count 54 characters per line, including Extension is looking for a full-time, tenure-track fac- all punctuation and blank spaces. Actual cost may differ We encourage applications from those with ulty position available 1 January 2008. Responsibilities if you use capitals, centered copy, or special characters. include conducting fundamental and applied research proven records of teaching and related experience at the college level. Candidates are expected to hold a PhD degree in the geosciences or a closely related field. Additional credentials may include experience in securing external funding, and a record of publications related to geoscience education. Opportunities exist Visit our online journals at: www.gsajournals.org for appointments as Lecturer, Senior Lecturer, Adjunct Faculty, or tenure-track ISSN 0016-7606 VOL. 119 NO. 7/8 JULY/AUGUST 2007 JULY/AUGUST GSA BULLETIN Faculty, depending upon credentials and interests. Appointments will be primarily Sculpting of Hawaiian ampitheaters within the Department of Geological Mammals turn over for climate change Sciences, but may include affiliations with Sandstone beds, sheets, and blankets the Jackson School’s main research units, SU S IS E • the Bureau of Economic Geology or the I I H ting N T e sculp • Th aiian T N f Haw o eaters H I amphith

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I I appointment is negotiable. I I H H N N T T Pleistocene slip at fault Send inquiries and applications (cover letter, Gas well encounters CV, publications) to: Office of the Chairman / Acidic mine drainage starts TIF Department of Geological Sciences / GSA’s online-only journal. Jackson School of Geosciences, The University of Texas at Austin / 1 University JULY GEOLOGY Station C1100 / Austin, TX 78712-0254 Everything You Always Wanted to Know about or [email protected]. Seafl oor Spreading but… For more information on the school and Read my LIPs: Comparable Ages of Pacifi c Plateaus its hiring program visit us online at Intercontinental Correlation: Casting the www.jsg.utexas.edu/hiring. Pennsylvanian Net widely THE UNIVERSITY OF TEXAS AT AUSTIN IS AN AFFIRMATIVE ACTION / EQUAL OPPORTUNITY EMPLOYER Cretaceous Ice? No Dice!

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CHANGING THE WORLD OF GEOSCIENCES

GSA TODAY, JULY 2007 43 AL SOCIET IC Y G O O F L A O M E E G R

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The coupling between devaluation of writing in scientifi c authorship and infl ation of citation indices

Terry Engelder, Department of Geosciences, The Pennsylvania shared between graduate student and mentor. Sometime later, State University, University Park, Pennsylvania 16827, USA in the 1990s, the average number of authors per paper in Geol- ogy exceeded three. During the latter half of 2006, the aver- age number of authors per paper broke above four, a level of Traditionally, scientific authorship was earned by those who authorship where the source of intellectual input through writ- contributed to the intellectual enterprise of a paper through ing becomes unclear. In the 2006 sample, only 3% of all Geol- writing and rewriting. Like the effect of grade inflation on ogy papers were written by a single author, and the percentage the value of A-grades awarded at the top research universi- of first authors also dropped to an all-time low. ties, the act of writing as a prerequisite for authorship in the Aside from a devaluation of writing as a prerequisite for geosciences literature has rapidly evolved over the past three authorship in Geology papers, what does all this mean? decades. An analysis of authorship of Geology papers illustrates The trend in authorship for Geology papers seems to corre- this evolution. With its inaugural issues in late 1973, the stan- late with the tilt of earth science toward multidisciplinary col- dard for authorship was set at 1.9 authors per paper with 46% laboration. Indeed, the National Science Foundation developed of all Geology papers written by single authors the mode that the capability for principal investigators to submit collaborative first year (Fig. 1). Less than 10% of these 1973 papers claimed proposals in response to the scientific community’s desire to more than three authors. The source of intellectual input into submit such proposals (D. Fountain, 2007, personal commun.). the communication of scientific discovery was clear during the Big science does require the integration of outputs from a num- early history of Geology. ber of laboratories, and these should be recognized. The trend After 1973, the average number of authors per paper contin- in authorship also correlates with the proliferation of cross- ued to rise steadily. By the mid-1980s, the mode for authorship border projects, particularly those focused on the Himalayans, in Geology shifted to two, a number that remains the mode the Andes, and other areas. Multi-government funding of large to this day. As much as anything, this mode reflects writing programs in the oceans and in space also contributed to this

Figure 1. Data on authorship in samples of papers published in Geology since its inception in 1973. With the exception of the 1973 sample, all other samples are from six-month or twelve-month periods depending on which sample yielded between 100 and 150 papers, thereby normalizing the number of papers from year to year. The six-month samples were arbitrarily selected within the publication year. Large-project papers were binned according to the number of authors listed in the contents of each issue. (A) Average number of authors per Geology paper from a sample of between 100 and 150 papers. (B) Percentage of first authors in the total author pool. (C) Percentage of single-author papers. (D) Percentage of authors who were not listed as one of the first three authors in the total author pool.

doi: 10.1130/GSAT01707GW.1

44 JULY 2007, GSA TODAY trend. By scientific etiquette, the results of each of these types of projects require broad recognition. The question is whether this recognition should come through citations or through the addition of names to the authorship lists that in Geology have reached as high as 14 as of late. The trend in authorship in Geology reflects the vitality of the earth sciences as political borders and project size are no longer the obstacles they once were. It is equally vital for the science to take advantage of many data sets, some of which require very expensive machines to gather. However, there is Science Editor Changes an issue about whether the intellect of the individual is being squeezed out by “big” science as we move into the twenty-first century. One interpretation of the authorship data from papers published in Geology is that there is far less individual initiative, at least in terms of writing, than there was 30 years or more ago. This trend (i.e., the devaluation of writing as a prerequisite for authorship) is of concern, in part because the trend signals the diminution of the solitary thinker and writer. After all, writ- ing is a major component of intellectual enterprise leading to Gerry Ross David Fastovsky Stephen T. Johnston good science, and writing is less effective when the committee Gerry Ross has completed his term and then some of writers and rewriters grows beyond a very low number. as GSA Today science co-editor. Ross will keep his hat A corollary to the devaluation of writing in scientific dis- in the geoscience arena by following an earth systems covery is the inflation of citation indices. Under the present approach to the application of the principles of soil sci- system, for a 14-author Geology paper cited once, each author ence, aqueous geochemistry, and geomicrobiology to will claim that citation in his or her personal citation index. organic agriculture on his farm in Maui. GSA Pubs will That paper increments 14 citation indices once and thus has miss working with you, Gerry! the same effect as 14 citations of a single-author Geology paper where the single author has his index incremented 14 times. David Fastovsky, a GSA Fellow familiar to many, The hardest part of scientific discovery is the communication steps in as GSA Today’s new science co-editor. Fastovsky aspect, yet in a 14-author Geology paper, communication, usu- received the GSA Distinguished Service Award last year ally the first author’s responsibility, is given no greater reward after several years as Geology editor (1999–2005), service that that received by the fourteenth author. It seems that the on numerous GSA committees, and work as associate next best mechanism for padding citation indices beyond self- editor on GSA Bulletin (1996–2000). citation is to join a number of multi-author papers. Science co-editor Stephen T. Johnston, who began his To correct the dual predicament of devaluation of writing term last year, continues his quest “to bring forward high- in scientific authorship and inflation of citation indices, I draw quality articles that appeal to as broad an audience as pos- a distinction between the present citation index, where each sible and that spark debate within our community regard- author claims a citation independently of the number of ing the major societal and scientific questions facing the authors and citation credit (value of a particular paper nor- earth sciences.” malized by the number of authors) plus citation credit index GSA Today science editors are charged with obtain- (citation credit multiplied by the number of citations). To the ing first-class, focused articles that collectively reflect and best of my knowledge, the terms citation credit and citation summarize current topics and discoveries in the earth sci- credit index are new to the literature. I suggest that each ences. Science editors also solicit “Groundwork” articles, paper be awarded a maximum of two citation credits per GSA Today’s newest article series, meant to further the paper with the first author always earning one credit per cita- influence of earth science on education, policy, planning, tion. A second credit would be divided evenly among the and funding. All submissions, whether solicited or volun- secondary authors. Thus, in the typical 14-author Geology teered, are reviewed. To submit a science or Groundwork paper, each of the secondary authors earns a 0.08 credit per article to GSA Today, send your manuscript and figures via citation for the paper, and this would be the number claimed e-mail directly to Stephen Johnston, [email protected], and David by secondary authors on their annual promotion and tenure Fastovsky, [email protected]. or salary review dossiers and other documents of self-con- gratulation. In a two-author Geology paper, each author would earn one credit per citation, thereby allowing a thesis advisor to earn his or her just due for preparing a thesis for publica- Editor’s Note: The following guideline applies to all Geology tion when the graduate student disappears into some job that submissions: “For multi-author papers, Geology editors expect does not reward publication. With this citation credit algo- that all the authors have been involved with the work, have rithm, communication of scientific discovery would be approved the manuscript, and agree to its submission. A state- restored to its proper position in the reward hierarchy of the ment on the respective roles of each author when more than five geoscience community. authors are listed is required.” ■

GSA TODAY, JULY 2007 45 MULTIPLE HIRES IN CLIMATE SYSTEMS SCIENCE The Jackson School is building a premier education and research program in Climate System Science. We seek scientists at the forefront of their disciplines attracted to challenging areas of scholarship that require collaboration across disciplines and programs. We seek the expertise required to address fundamental questions associated with a changing Earth system, including: • What processes control the rates of change and variability of the climate system, including the atmosphere, ocean, cryosphere, land surface, and biosphere? • Can we improve our ability to anticipate these changes and determine the potential impacts on society? Over the next three years, we will hire six or more faculty and scientists who complement our growing strengths. We will hire individuals who will enable us to build a comprehensive climate program and who will make fundamental advances in our understanding of the climate system. These areas include, but are not limited to: • Improved modeling of the Earth system, specifically including ice sheets, the global carbon cycle, and interaction between the components of the Earth system. • Enhanced observation of the Earth system, including remote sensing of Earth-surface processes and components. • Greater capability to utilize geologic archives to understand climate change, including paleoclimatology, paleoceanography, and paleobiology. • Improved ability to link climate and hydrology, particularly at the basin-to-continent scale. • Increased strengths in atmospheric dynamics and physical oceanography. • Increased ability to understand variability and quantify uncertainties, including statistical climatology. • Greater capability to address societal impacts and vulnerability, including adaptation and mitigation. We encourage applications from innovative scientists in other areas that are related to climate system science.

MULTIPLE HIRES IN ENERGY—SCIENCE, ENVIRONMENT, AND POLICY RESEARCH The Jackson School is building a premier education and research program in Energy—Science, Environment and Policy Research. We seek scientists at the forefront of their disciplines attracted to challenging areas of scholarship that require collaboration across disciplines and programs. We seek to address compelling questions within the broad theme of determining how we can create an energy future that is sustainable and environmentally and economically robust. These questions include, but are not limited to: • How can we integrate classically separated disciplines (geomechanics, geochemistry, tectonics, stratigraphy, petrophysics, geophysical imaging, regional/basin scale studies) to advance interrelationships at the forefront of energy and environmental science? • How do fluid-rock interactions and the interplay between mechanical and chemical processes influence fluid flow and storage in the subsurface? • How can we improve identification and recovery of energy resources by comprehensive integration of information at all scales, integrated numerical modeling, and innovative automated and continuous monitoring? • Can we solve the compelling environmental issues associated with the extraction and use of fossil fuel energy sources, including water and land use, and carbon sequestration? • Can we develop energy policies founded on solid scientific and engineering information and innovative approaches that will simultaneously promote environmental stewardship and energy security? Over the next three years we will hire six or more faculty and scientists who complement our existing strengths. We are interested in a wide variety of research areas ranging from rock/fluid systems, subsurface sensing, tectono-stratigraphy, carbon management, energy economics and policy, basin-scale analysis and modeling, and resource and reserve geoinformatics. We also encourage applications from innovative scientists in other areas related to energy—science, environment and policy.

Opportunities exist at any level, can include cluster hires, and can be within or in combination with any Jackson School Unit—the Department of Geological Sciences, the Bureau of Economic Geology, or the Institute for Geophysics. The schedule of appointment is also negotiable. For more information on the school and its hiring program visit us online at www.jsg.utexas.edu/hiring. Ph.D. is minimum requirement for application. Send inquiries and applications (cover letter, CV, list of publications, list of references, statements of teaching and/or research interests) to: Randal Okumura, Office of the Dean / Jackson School of Geosciences, The University of Texas at Austin / PO Box B, University Station / Austin, TX 78713 or [email protected].

T HE U NIVERSITY OF T EXAS AT A USTIN IS AN A FFIRMATIVE A CTION / EQUAL O PPORTUNITY E MPLOYER

CHANGING THE WORLD OF GEOSCIENCES MULTIPLE HIRES IN CRUST, MANTLE, AND CORE DYNAMICS The Jackson School is building a premier education and research program in Crust, Mantle, and Core Dynamics. We seek scientists at the forefront of their disciplines attracted to challenging areas of scholarship that require collaboration across disciplines and programs. We particularly seek individuals eager to address the questions encompassing the broad theme of determining how the core, mantle, crust, and surface interact to shape the physical, chemical, and biological evolution of the Earth across a wide range of spatial and temporal scales. These questions include, but are not limited to: • What controls the style, vigor and time dependence of mantle and core convection? • How are chemical and physical processes acting in the Earth's interior manifested at the surface and how do surface processes affect Earth’s interior? • What controlling influence do fluids have on geological processes in the Earth’s crust and mantle? • How can knowledge of active tectonic processes and present-day plate motions be utilized to better decipher Earth’s history?

Over the next three years, we will hire six or more faculty and scientists who complement our existing strengths. We are interested in a wide variety of research areas ranging from geodynamics, seismology, mineral physics, GPS/remote sensing of active and surface deformation, fluid dynamics, geochronology, geochemistry, rock physics, and computational geosciences focusing on modeling and simulation. We also encourage innovative scientists in other areas related to crust/mantle/core dynamics to apply. Successful applicants will join a strong and diverse group of 125 Ph.D. faculty and scientists, with the facilities and partnerships that will help ensure their success.

MULTIPLE HIRES IN EARTH SURFACE AND HYDROLOGIC PROCESSES The Jackson School is building a premier education and research program in Earth Surface and Hydrologic Processes. We seek outstanding scientists at the forefront of their disciplines who are attracted to challenging areas of scholarship that require collaboration across disciplines and programs. We seek to address compelling questions in surface and hydrologic processes within the broad theme of determining how surface and hydrologic processes are influenced by their dynamic setting at the interface of the lithosphere, atmosphere, hydrosphere, and biosphere. These questions include: • How do climate, ice sheets, and tectonics interact to define the distribution and character of sea level change? • How do coastal zone geology, biology, biogeochemistry, and hydrology respond to surficial processes, particularly to sea level change? • What are the impacts of climate variability/change and land use change on water, nutrient, and sediment cycles? • What is the integrated result of the interplay between tectonic deformation, climate change, and biota on the Earth’s surface and on the supply, distribution, and storage of sediments? • What are the physical, chemical, ecological processes and social forces that will determine the sustainability of our water resources? Over the next three years, we will hire six or more faculty and scientists who complement our existing strengths. We are interested in a range of research areas from quantitative geomorphology to hydrologic-biologic interactions to societal impacts and resource sustainability, and capabilities ranging from modeling landscape dynamics to remote sensing, shallow environmental geophysics, aerogeophysics, and monitoring groundwater and coastal systems. We also encourage innovative scientists in other areas related to surface and hydrologic processes to apply.

Opportunities exist at any level, can include cluster hires, and can be within or in combination with any Jackson School Unit—the Department of Geological Sciences, the Bureau of Economic Geology, or the Institute for Geophysics. The schedule of appointment is also negotiable. For more information on the school and its hiring program visit us online at www.jsg.utexas.edu/hiring. Ph.D. is minimum requirement for application. Send inquiries and applications (cover letter, CV, list of publications, list of references, statements of teaching and/or research interests) to: Randal Okumura, Office of the Dean / Jackson School of Geosciences, The University of Texas at Austin / PO Box B, University Station / Austin, TX 78713 or [email protected]. T HE U NIVERSITY OF T EXAS AT A USTIN IS AN A FFIRMATIVE A CTION / EQUAL O PPORTUNITY E MPLOYER

CHANGING THE WORLD OF GEOSCIENCES GOLDSMITH 2007 Conference Cologne Germany, 19 - 31 September 2007 Booth 206

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selFrag_GSA 2_07.indd 1 25.5.2007 11:55:30 Uhr