DOCSLIB.ORG

Late Cretaceous (Santonian-Campanian) Stratigraphy of the Northern Sacramento Valley, California

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Late Cretaceous (Santonian-Campanian) Stratigraphy of the Northern Sacramento Valley, California Late Cretaceous (Santonian-Campanian) stratigraphy of the northern Sacramento Valley, California DcT^rf {Department of Geology, University of California at Davis, Davis, California 95616 rElbK L). WAKL) J ABSTRACT INTRODUCTION METHODS The Upper Cretaceous (Coniacian-lower Thick accumulations of Upper Cretaceous Strata of the Chico Formation dip gently to Campanian) Chico Formation of the north- sedimentary deposits are found on the western, the southwest. Sections were mejisured using eastern Sacramento Valley, California, includes northern, and eastern margins of the Great Val- either tape and compass or Jacob's staff. In some three newly defined members at the type local- ley of California (Fig. 1). The search for oil and areas, outcrop data were plotted on U.S. Geo- ity: (1) cobble conglomerate of the basal Pon- gas in northern California, as well as interest in logical Survey topographic quadrangles and derosa Way Member, (2) coarse-grained con- the processes of sedimentation in fore-arc re- stratigraphie columns were determined trigo- glomeratic sandstone of the overlying Musty gimes, has made the Great Valley seque nce, ex- nometrically. Paleontologic collections of mac- Buck Member, and (3) fine-grained silty sand- posed along the west side of the Sacramento rofossils were made during the measuring of stone of the uppermost Ten Mile Member. Valley, probably the best-studied fore-arc de- sections. Minor offset of bedding was observed Other outcrops of the Chico Formation exhibit posit in the world (Ojakangas, 1968; Dickinson, on more southerly exposures of the Chico For- the same three members plus an additional unit, 1971; Ingersoll, 1978, 1979). These workers in- mation, and such structural modification be- the Kingsley Cave Member, composed of mud- terpreted strata of the Great Valley sequence to comes more prominent farther north. These stone. The Chico Formation resulted from a be deep-marine slope and basin-plain deposits. disruptions are easily recognized and the offset transgression onto the Sierra Nevada basement Many of these rocks contain an abundant micro- can be compensated for, except on Antelope in the Late Cretaceous. The Kingsley Cave fauna that has been utilized for correlation of Creek, where severe folding has occurred at Member was deposited locally in quiet-water diverse lithologic types (Goudkoff, 1945; some localities. Such areas were treated as iso- conditions below wave base in an intrashelf Douglas, 1969). basin and may represent a marine connection In contrast, Upper Cretaceous strata on the with regions farther northeast. eastern side of the Great Valley, including lateral Macrofossils allow correlation of the Chico equivalents of the gas-producing strata of the Formation with marine deposits of the Great Sacramento Valley, have received only minimal Valley sequence exposed along the western attention. This is due, in part, to the relative Sacramento Valley. Strata of the Guinda and paucity of a microfauna, as well as to the re- Forbes Formations represent submarine fan- moteness of most exposures. Little is known, channel to outer-fan deposits of a shallowing consequently, of the depositional environments Late Cretaceous fore-arc basin. The Santonian of these proximal facies, and biostratigraphic re- Guinda Formation, a massive sand unit depos- lations have not been defined in most sections. ited in fan-channel to distal-fan turbidite envi- In this paper, we describe new sections with ronments, is correlative with the Musty Buck paleontologic collections from the Chic» For- and Kingsley Cave Members of the Chico For- mation in Tehama and Butte Counties. Meg- mation. The Dobbins Shale Member of the afossils now allow correlation between both Forbes Formation, a widespread mudstone unit margins of the Great Valley, thus uniting out- of hemipelagic outer-fan to basin-plain deposits, crops of this depositional system into a compre- is correlative with the Kingsley Cave Member of hensive littoral to bathyal sedimentologic the Chico Formation and reflects a Santonian framework. transgressive event in the northern fore-arc basin. Mudstones and turbidites of the middle of the Forbes Formation are equivalent to the shallow-marine strata of the Ten Mile Member Figure 1. Distribution of Map Area of the Chico Formation. Correlatives of younger Upper Cretaceous outcrop Forbes Formation strata have not been posi- along the margins of the tively identified from the Chico Creek region Sacramento Valley. Stippled but may be represented by unfossiliferous, cross- area represents outcrop of bedded, coarse-grained sandstones found above the Chico Formation. sections of the Chico Formation. Geological Society of America Bulletin, v. 95, p. 618-627, 11 figs., May 1984. 618 Downloaded from http://pubs.geoscienceworld.org/gsa/gsabulletin/article-pdf/95/5/618/3445089/i0016-7606-95-5-618.pdf by guest on 26 September 2021 CRETACEOUS STRATIGRAPHY, SACRAMENTO VALLEY, CALIFORNIA 619 of Chico "should be abandoned as a group or which traverses the higher elevations of the field series name, but that it might usefully be re- region. The member unconformably overlies tained as a formational name for the rocks at pre-Cretaceous metamorphic rocks, this contact and near the type locality on Chico Creek." Re- being obscured in most areas by a cover of ero- cent workers have, as a rule, followed this sional debris. In the extreme northeast corner of suggestion. sec. 1, T. 23 N., R. 2 E., exposures on Big Chico The overlying and extensive Tuscan Forma- Creek in the vicinity of the Ponderosa Way tion of Pliocene age, and locally the Eocene Bridge are thus arbitrarily defined as the lower- Lovejoy Basalt, limit exposures of the Chico boundary stratotype for the Ponderosa Way Formation to narrow outcrops along only the Member. The member is approximately 200 m most deeply incised drainages of the Lassen thick on Big Chico Creek, with the upper- foothills region (Fig. 2). The first investigations boundary stratotype located in the center of sec. of Chico strata were those of Trask (1856), who 1, T. 23 N., R. 2 E. The member is well exposed described ammonites from the Cretaceous de- along Butte Creek, 8 km to the southeast, both posits exposed along Big Chico Creek. Diller above and below the Helltown Bridge crossing; (1889, 1895) mapped additional Chico Forma- here the stratigraphic thickness is somewhat less tion outcrops on Deer, Mill, and Antelope than on Big Chico Creek, —180 m. Creeks and noted that Cretaceous fossils had The lower part of the member consists of been found in those areas. However, due to their cobble conglomerate with local sand lenses remoteness, these outcrops have never been stra- (Fig. 4). Cobbles are poorly sorted and moder- tigraphically measured or collected. ately well rounded, and they range in size from 6 North of the Chico region, Cretaceous stratig- to 20 cm in diameter, with some as much as 70 raphy and molluscan occurrences in the vicin- cm. Clasts are primarily matrix-supported and ity of Redding, California, were summarized by consist of chert, metavolcanics, quartzite, schist, Popenoe (1943), who recognized six lithologic and slate, suggesting that they were derived from members. On the basis of macrofossils, he the underlying metamorphics. Granitic clasts equated the youngest of these deposits with the from nearby Mesozoic Sierran intrusives are ab- Figure 2. Outcrops of the Upper Creta- base of the section exposed along Big Chico sent. Clasts are embedded in a medium- to ceous Chico Formation, Tehama and Butte Creek. Matsumoto (1959-1960, p. 4) proposed coarse-grained arkosic sandstone matrix. Rare Counties, California. the name Redding Formation for these strata, trough cross-stratification occurs within the whereas Jones and others (1978) suggested that sandstone lenses, and there are indistinct, normal lated sections. Additionally, infilling of topo- at least some of Popenoe's (1943) Members grading and cobble imbrication in some graphic lows in the Cretaceous surface by I-VI were of formational rank. sections. younger volcanics results in isolation of some of The type locality for the Chico Formation, The upper portions of the member become the outcrops from the rest of the section. These Big Chico Creek, was established by Taff and increasingly sandy through interbedding of exposures were placed into a composite section others (1940) and has been the principal field sandstone lenses within the massive cobble con- based on the structural attitudes of the sediments area for biostratigraphic and sedimentologic glomerate. On Big Chico and Butte Creeks, the bracketing them. By necessity, then, some seg- studies. Saul (1959,1961) outlined the sedimen- transition to the overlying Musty Buck Member ments of the stratigraphie sections are incom- tologic units and the molluscan succession ob- is gradational at the localities noted above. Ma- plete, resulting in local truncation of lithologie served at the type locality. She recognized three rine fossils (ammonites and other mollusks) and faunal ranges. distinctive lithologies and informally designated have been reported from only the uppermost them the Ponderosa Way Member, the Musty exposures of the Ponderosa Way Member on STRATIGRAPHY Buck Member, and the Ten Mile Member. This Big Chico Creek (Matsumoto, 1959-1960). paper follows her usage in formal presentation. Exposures of the member along Butte Creek East Side: Lithostratigraphy Further examination of Chico Formation out- lack a normal marine macrofauna. crop along Deer, Mill, and Antelope Creeks has In the 125 years since the introduction of the shown the presence of these same three mem- Musty Buck Member name Chico for Upper Cretaceous sedimentary bers, plus an additional unit, herein designated deposits of the Pacific Coast of North America, the Kingsley Cave Member. Stratigraphic rela- The Musty Buck Member rests conformably the term has been employed in a variety of litho- tions of Chico Formation outcrops are summar- on the underlying Ponderosa Way Member on logie contexts. Cretaceous strata from California, ized in Figure 3. Big Chico and Butte Creeks.
Load more

Recommended publications
  • Asteroid Impact, Not Volcanism, Caused the End-Cretaceous Dinosaur Extinction
    Asteroid impact, not volcanism, caused the end-Cretaceous dinosaur extinction Alfio Alessandro Chiarenzaa,b,1,2, Alexander Farnsworthc,1, Philip D. Mannionb, Daniel J. Luntc, Paul J. Valdesc, Joanna V. Morgana, and Peter A. Allisona aDepartment of Earth Science and Engineering, Imperial College London, South Kensington, SW7 2AZ London, United Kingdom; bDepartment of Earth Sciences, University College London, WC1E 6BT London, United Kingdom; and cSchool of Geographical Sciences, University of Bristol, BS8 1TH Bristol, United Kingdom Edited by Nils Chr. Stenseth, University of Oslo, Oslo, Norway, and approved May 21, 2020 (received for review April 1, 2020) The Cretaceous/Paleogene mass extinction, 66 Ma, included the (17). However, the timing and size of each eruptive event are demise of non-avian dinosaurs. Intense debate has focused on the highly contentious in relation to the mass extinction event (8–10). relative roles of Deccan volcanism and the Chicxulub asteroid im- An asteroid, ∼10 km in diameter, impacted at Chicxulub, in pact as kill mechanisms for this event. Here, we combine fossil- the present-day Gulf of Mexico, 66 Ma (4, 18, 19), leaving a crater occurrence data with paleoclimate and habitat suitability models ∼180 to 200 km in diameter (Fig. 1A). This impactor struck car- to evaluate dinosaur habitability in the wake of various asteroid bonate and sulfate-rich sediments, leading to the ejection and impact and Deccan volcanism scenarios. Asteroid impact models global dispersal of large quantities of dust, ash, sulfur, and other generate a prolonged cold winter that suppresses potential global aerosols into the atmosphere (4, 18–20). These atmospheric dinosaur habitats.
    [Show full text]
  • New Late Cretaceous Gastropods from the Pacific Slope of North America
    Watural History Museum y p- CfljlWoh'cN^ Of Los Angeles County iRvartebrate Paleontology J. Paleont., 75(1), 2001, pp. 46-65 | Copyright © 2001, The Paleontological Society 0022-3360/01/0075-46$03.00 NEW LATE CRETACEOUS GASTROPODS FROM THE PACIFIC SLOPE OF NORTH AMERICA RICHARD L. SQUIRES AND LOUELLA R. SAUL Department of Geological Sciences, California State University, Northridge 91330-8266, <[email protected]>, and Invertebrate Paleontology Section, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, California 90007, < lousaul @ earthlink.net > ABSTRACT—Two new genera and ten new species of shallow-marine, warm-water gastropods are reported from several Upper Creta- ceous formations found between British Columbia and southern California. The buccinid Zaglenum new genus is represented by two new species and the turbinellid Fimbrivasum new genus is represented by three new species. The nododelphinulid Trochacanthus pacificus new species is the first record of this genus in the Western Hemisphere, and the procerthiid Nudivagusl califus new species could be the first record of this genus on the Pacific slope of North America. The xenophorid Xenophora (Endoptygma) hermax new species is only the second known Cretaceous species of this genus on the Pacific slope of North America, and this species establishes that Endoptygma Gabb, 1877, is a valid taxon. The neritid Otostoma sharonae new species is only the fourth known Cretaceous species of this genus on the Pacific slope of North America. The ringiculid Ringicula? (Ringiculopsis?) hesperiae new species is the first Campanian record of this genus on the Pacific slope of North America and the first recognition of this subgenus in this area.
    [Show full text]
  • Cretaceous Acila (Truncacila) (Bivalvia: Nuculidae) from the Pacific Slope of North America
    THE VELIGER ᭧ CMS, Inc., 2006 The Veliger 48(2):83–104 (June 30, 2006) Cretaceous Acila (Truncacila) (Bivalvia: Nuculidae) from the Pacific Slope of North America RICHARD L. SQUIRES Department of Geological Sciences, California State University, Northridge, California 91330-8266, USA AND LOUELLA R. SAUL Invertebrate Paleontology Section, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, California 90007, USA Abstract. The Cretaceous record of the nuculid bivalve Acila (Truncacila) Grant & Gale, 1931, is established for the first time in the region extending from the Queen Charlotte Islands, British Columbia, southward to Baja California, Mexico. Its record is represented by three previously named species, three new species, and one possible new species. The previously named species are reviewed and refined. The cumulative geologic range of all these species is Early Cretaceous (late Aptian) to Late Cretaceous (early late Maastrichtian), with the highest diversity (four species) occurring in the latest Campanian to early Maastrichtian. Acila (T.) allisoni, sp. nov., known only from upper Aptian strata of northern Baja California, Mexico, is one of the earliest confirmed records of this subgenus. ‘‘Aptian’’ reports of Trun- cacila in Tunisia, Morocco, and possibly eastern Venzeula need confirmation. Specimens of the study area Acila are most abundant in sandy, shallow-marine deposits that accumulated under warm- water conditions. Possible deeper water occurrences need critical evaluation. INTRODUCTION and Indo-Pacific regions and is a shallow-burrowing de- posit feeder. Like other nuculids, it lacks siphons but has This is the first detailed study of the Cretaceous record an anterior-to-posterior water current (Coan et al., 2000).
    [Show full text]
  • 30. Turonian–Santonian Benthic
    Mascle, J., Lohmann, G.P., and Moullade, M. (Eds.), 1998 Proceedings of the Ocean Drilling Program, Scientific Results, Vol. 159 30. TURONIAN–SANTONIAN BENTHIC FORAMINIFER ASSEMBLAGES FROM SITE 959D (CÔTE D’IVOIRE-GHANA TRANSFORM MARGIN, EQUATORIAL ATLANTIC): INDICATION OF A LATE CRETACEOUS OXYGEN MINIMUM ZONE1 Ann E.L. Holbourn2,3 and Wolfgang Kuhnt2 ABSTRACT Turonian–Santonian organic-rich fissile black claystones with laminated intervals from Hole 959D on the Côte d’Ivoire- Ghana Transform Margin, drilled during Ocean Drilling Program Leg 159, contain benthic foraminifer assemblages dominated by buliminid associations. The lower Turonian assemblage from Core 159-959D-68R is strongly dominated by Bolivina anam- bra, Praebulimina sp. 1, Praebulimina sp. 2, Praebulimina sp. 3, and Gavelinella spp. The upper Turonian to lower Coniacian assemblage from Core 159-959D-67R displays low abundance and low diversity and consists mostly of organically cemented agglutinated taxa and/or some corroded tests of Lenticulina, Bolivina, Gyroidinoides ex gr. nitidus. The middle Coniacian to lower Santonian assemblage from Core 159-959D-66R and from the base of Core 159-959D-65R contains high numbers of Praebulimina robusta, Praebulimina fang, Neobulimina subregularis, and Buliminella cf. gabonica, but shows marked fluctua- tions in abundance and diversity, which appear to be related to changes in total organic carbon. The distinct composition of the two buliminid associations in Core 159-959D-68R and Core 159-959D-66R suggests that endemism was stronger during the early Turonian, when circulation was probably more restricted and connections between equatorial Atlantic basins were lim- ited. We interpret the late Coniacian–early Santonian depositional environment to be an oxygen minimum zone in a more open marine outer shelf or upper slope setting.
    [Show full text]
  • Cenomanian Turonian Coniacian Santonian Campanian
    walteri aff. aff. spp. spp. imperfectus spp. (prisms) Chronostratigraphy Offshore Norway sp. 1 Geologic Time Scale 2012 Zonation (Gradstein et al., 1999, and this study) Allomorphina halli / pyriformis Sigmoilina antiqua Textularia Gavelinella intermeda gracillima Valvulineria Bulbobaculites problematicus Caudammina ovuloides Nuttallinella florealis Stensioeina granulata polonica Inoceramus Rzehakina minima Rzehakina epigona Fenestrella bellii Gaudryina filiformis Trochamminoides Haplophragmoides Gavelinella usakensis Caudammina ovula Coarse agglutinated spp. LCO dubia Tritaxia Plectorecurvoides alternans Reussella szajnochae Recurvoides Hippocrepina depressa Psammosphaera sphaerical radiolarians Ma Age/Stage Lingulogavelinella jarzevae elegans Lt NCF19 Maastrichtian volutus LCO 70 NCF18 E szajnochae dubia Lt 75 LCO of NCF17 Campanian Deep Water M Agglutinated 80 Foraminifera E bellii NCF16 Lt Inoceramus LCO NCF15 85 Santonian M E polonica NCF14 Lt Coniacian M E Marginotruncana NCF13 90 Lt Turonian M E Dicarinella NCF12 95 Lt brittonensis M NCF11 Cenomanian delrioensis LCO NCF10 E antiqua NCF9 100 Figure 2.8c. Stratigraphic ranges of Upper Cretaceous benthic foraminifera, and miscellaneous index taxa, oshore mid-Norway, with the foraminiferal zonation established in this study. s.l. Chronostratigraphy Offshore Norway Geologic Time Scale 2012 Zonation (Gradstein et al., 1999, and this study) Abathomphalus mayaroensis Pseudotextularia elegans Hedbergella planispira Hedbergella hoelzi Praeglobotruncana delrioensis Praeglobotruncana stephani
    [Show full text]
  • Upper Cenomanian •fi Lower Turonian (Cretaceous) Calcareous
    Studia Universitatis Babeş-Bolyai, Geologia, 2010, 55 (1), 29 – 36 Upper Cenomanian – Lower Turonian (Cretaceous) calcareous algae from the Eastern Desert of Egypt: taxonomy and significance Ioan I. BUCUR1, Emad NAGM2 & Markus WILMSEN3 1Department of Geology, “Babeş-Bolyai” University, Kogălniceanu 1, 400084 Cluj Napoca, Romania 2Geology Department, Faculty of Science, Al-Azhar University, Egypt 3Senckenberg Naturhistorische Sammlungen Dresden, Museum für Mineralogie und Geologie, Sektion Paläozoologie, Königsbrücker Landstr. 159, D-01109 Dresden, Germany Received March 2010; accepted April 2010 Available online 27 April 2010 DOI: 10.5038/1937-8602.55.1.4 Abstract. An assemblage of calcareous algae (dasycladaleans and halimedaceans) is described from the Upper Cenomanian to Lower Turonian of the Galala and Maghra el Hadida formations (Wadi Araba, northern Eastern Desert, Egypt). The following taxa have been identified: Dissocladella sp., Neomeris mokragorensis RADOIČIĆ & SCHLAGINTWEIT, 2007, Salpingoporella milovanovici RADOIČIĆ, 1978, Trinocladus divnae RADOIČIĆ, 2006, Trinocladus cf. radoicicae ELLIOTT, 1968, and Halimeda cf. elliotti CONARD & RIOULT, 1977. Most of the species are recorded for the first time from Egypt. Three of the identified algae (T. divnae, S. milovanovici and H. elliotti) also occur in Cenomanian limestones of the Mirdita zone, Serbia, suggesting a trans-Tethyan distribution of these taxa during the early Late Cretaceous. The abundance and preservation of the algae suggest an autochthonous occurrence which can be used to characterize the depositional environment. The recorded calcareous algae as well as the sedimentologic and palaeontologic context of the Galala Formation support an open-lagoonal (non-restricted), warm-water setting. The Maghra el Hadida Formation was mainly deposited in a somewhat deeper, open shelf setting.
    [Show full text]
  • DEPARTMENT of the INTERIOR U.S. GEOLOGICAL SURVEY Review of the Great Valley Sequence, Eastern Diablo Range and Northern San
    DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY Review of the Great Valley sequence, eastern Diablo Range and northern San Joaquin Valley, central California by J. Alan Bartow1 and TorH.Nilsen2 Open-File Report 90-226 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 1990 , Menlo Park, California 2Applied Earth Technologies, Inc, Redwood City, California ABSTRACT The Great Valley sequence of the eastern Diablo Range and northern San Joaquin Valley consists of a thick accumulation of marine and nonmarine clastic rocks of Jurassic to early Paleocene age deposited in a forearc basin that was situated between the Sierran magmatic arc to the east and the Franciscan subduction complex to the west. In the western part of the basin, the sequence rests conformably on the Jurassic Coast Range Ophiolite or is faulted against the structurally underlying Franciscan Complex. Beneath the eastern San Joaquin Valley, the sequence unconformably onlaps igneous and metamorphic rocks of the Sierran magmatic arc. The sequence generally thickens westward to as much as 8-9 km in the Diablo Range, where it is unconformably overlain by late Paleocene and younger strata. The stratigraphy of the Great Valley sequence has been the subject of much work, but problems, particularly nomenclatural, remain. Lithostratigraphic subdivisions of the sequence have not gained widespread acceptance because of the lenticularity of most sandstone bodies, abrupt fades changes in subsurface and outcrops, and the lack of detailed subsurface information from closely spaced or deep wells.
    [Show full text]
  • Reconstructions of the Continents Around the North Atlantic at About the 60Th Parallel
    CORE Metadata, citation and similar papers at core.ac.uk Provided by RERO DOC Digital Library 1 Published in Earth and Planetary Science Letters 187: 55-69, 2001 Reconstructions of the continents around the North Atlantic at about the 60th parallel Trond H. Torsvik a;d, Rob Van der Voo b;*, Joseph G. Meert a;e, Jon Mosar a, Harald J. Walderhaug c a VISTA, c/o Geological Survey of Norway, Leiv Eiriksonsvei 39, N-7491 Trondheim, Norway b Department of Geological Sciences, University of Michigan, Ann Arbor, MI 48109-1063, USA c University of Bergen, Institute of Solid Earth Physics, Allegt. 41, N-5007Bergen, Norway d Institute for Petroleum Technology and Applied Geophysics, S.P. Andersens v. 15a, N-7491 Trondheim, NTNU, Norway e Department of Geography and Geology, Indiana State University, Terre Haute, IN 47809, USA Received 12 September 2000; received in revised form 16 February 2001; accepted 21 February 2001 Abstract Late Carboniferous^Early Tertiary apparent polar wander (APW) paths (300^40 Ma) for North America and Europe have been tested in various reconstructions. These paths demonstrate that the 500 fathom Bullard et al. fit is excellent from Late Carboniferous to Late Triassic times, but the continental configuration in northern Pangea changed systematically between the Late Triassic (ca. 214 Ma) and the Mid-Jurassic (ca. 170 Ma) due to pre-drift extension. Best fit North Atlantic reconstructions minimize differences in the Late Carboniferous^Early Jurassic and Late Cretaceous^ Tertiary segments of the APW paths, but an enigmatic difference exists in the paths for most of the Jurassic, whereas for the Early Cretaceous the data from Europe are nearly non-existent.
    [Show full text]
  • Cretaceous Research 69 (2017) 49E55
    Cretaceous Research 69 (2017) 49e55 Contents lists available at ScienceDirect Cretaceous Research journal homepage: www.elsevier.com/locate/CretRes High-resolution calcareous nannofossil biostratigraphy of the Santonian/Campanian Stage boundary, Western Interior Basin, USA * Zachary A. Kita a, , David K. Watkins a, Bradley B. Sageman b a Department of Earth and Atmospheric Sciences, University of Nebraska, Lincoln, NE 68588, USA b Department of Earth and Planetary Sciences, Northwestern University, Evanston, IL 60208, USA article info abstract Article history: The base of the Campanian Stage does not have a ratified Global Stratotype Section and Point (GSSP); Received 26 June 2016 however, several potential boundary markers have been proposed including the base of the Scaphites leei Received in revised form III ammonite Zone and the base of the paleomagnetic Chron C33r. Calcareous nannofossil assemblages 25 August 2016 from the Smoky Hill Member of the Niobrara Formation in the central Western Interior Seaway, USA Accepted in revised form 28 August 2016 were analyzed from two localities to determine relevant biohorizons and their relationships to these Available online 30 August 2016 potential boundary markers. In a previous study, the Aristocrat Angus 12-8 core (Colorado) was astro- chronologically dated and constrained using macrofossil zonations and radiometric ages. The Smoky Hill Keywords: Calcareous nannofossils Member type area (Kansas) provides an expanded interval with good to excellent nannofossil Biostratigraphy preservation.
    [Show full text]
  • Campanian and Austinian-Tayloran Stage Boundaries in Mississippi and Alabama Using Calcareous Microfossils
    Documentation of the Santonian­ Campanian and Austinian-Tayloran Stage Boundaries in Mississippi and Alabama Using Calcareous Microfossils U.S. GEOLOGICAL SURVEY BULLETIN 1884 AVAILABILITY OF BOOKS AND MAPS OF THE U.S. GEOLOGICAL SURVEY Instructions on ordering publications of the U.S. Geological Survey, along with prices of the last offerings, are given in the cur­ rent-year issues of the monthly catalog "New Publications of the U.S. Geological Survey." Prices of available U.S. Geological Sur­ vey publications released prior to the current year are listed in the most recent annual "Price and Availability List" Publications that are listed in various U.S. Geological Survey catalogs (see back inside cover) but not listed in the most recent annual "Price and Availability List" are no longer available. Prices of reports released to the open files are given in the listing "U.S. Geological Survey Open-File Reports," updated month­ ly, which is for sale in microfiche from the U.S. Geological Survey, Books and Open-File Reports Section, Federal Center, Box 25425, Denver, CO 80225. Reports released through the NTIS may be obtained by writing to the National Technical Information Service, U.S. Department of Commerce, Springfield, VA 22161; please include NTIS report number with inquiry. Order U.S. Geological Survey publications by mail or over the counter from the offices given below. BY MAIL OVER THE COUNTER Books Books Professional Papers, Bulletins, Water-Supply Papers, Techniques of Water-Resources Investigations, Circulars, publications of
    [Show full text]
  • Uppermost Campanian–Maestrichtian Strontium Isotopic, Biostratigraphic, and Sequence Stratigraphic Framework of the New Jersey Coastal Plain
    Uppermost Campanian–Maestrichtian strontium isotopic, biostratigraphic, and sequence stratigraphic framework of the New Jersey Coastal Plain Peter J. Sugarman New Jersey Geological Survey, CN 427, Trenton, New Jersey 08625, and Department of Geological Sciences, Rutgers University, New Brunswick, New Jersey 08903 Kenneth G. Miller Department of Geological Sciences, Rutgers University, New Brunswick, New Jersey 08903, and Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York 10964 David Bukry U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025 Mark D. Feigenson Department of Geological Sciences, Rutgers University, New Brunswick, New Jersey 08903 ABSTRACT boundaries elsewhere in the Atlantic Recent stratigraphic studies have concen- Coastal Plain (Owens and Gohn, 1985) and trated on the relationships between these se- Firm stratigraphic correlations are the inferred global sea-level record of Haq quences, their bounding surfaces (unconfor- needed to evaluate the global significance of et al. (1987); they support eustatic changes mities), and related sea-level changes. The unconformity bounded units (sequences). as the mechanism controlling depositional shoaling-upward sequences described by We correlate the well-developed uppermost history of this sequence. However, the latest Owens and Sohl (1969) have been related to Campanian and Maestrichtian sequences Maestrichtian record in New Jersey does recent sequence stratigraphic terminology of the New Jersey Coastal Plain to the geo- not agree with Haq et al. (1987); we at- (e.g., Van Wagoner et al., 1988) by Olsson magnetic polarity time scale (GPTS) by in- tribute this to correlation and time-scale (1991) and Sugarman et al. (1993). Glauco- tegrating Sr-isotopic stratigraphy and bio- differences near the Cretaceous/Paleogene nite beds are equivalent to the condensed stratigraphy.
    [Show full text]
  • Jason P. Schein
    Curriculum Vitae JASON P. SCHEIN EXECUTIVE DIRECTOR BIGHORN BASIN PALEONTOLOGICAL INSTITUTE 3959 Welsh Road, Ste. 208 Willow Grove, Pennsylvania 19090 Office: (406) 998-1390 Cell: (610) 996-1055 ​ ​ [email protected] EDUCATION Ph.D. Student Drexel University, Department of Biology, Earth and Environmental Science, 2005-2013 M.Sc., Auburn University, Department of Geology and Geography, 2004 B.Sc., Auburn University, Department of Geology and Geography, 2000 RESEARCH AND PROFESSIONAL INTERESTS Mesozoic vertebrate marine and terrestrial faunas, paleoecology, paleobiogeography, faunistics, taphonomy, biostratigraphy, functional morphology, sedimentology, general natural history, education and outreach, paleontological resource assessment, and entrepreneurial academic paleontology. ACADEMIC, PROFESSIONAL, & BOARD POSITIONS 2019-Present Member of the Board, Yellowstone-Bighorn Research Association ​ 2017-Present Founding Executive Director, Bighorn Basin Paleontological Institute ​ 2017-Present Member of the Board, Delaware Valley Paleontological Society ​ 2016-Present Scientific and Educational Consultant, Field Station: Dinosaurs ​ 2015-Present Graduate Research Associate, Academy of Natural Sciences of Drexel University ​ 2007-2017 Assistant Curator of Natural History Collections and Exhibits, New Jersey State Museum ​ 2015-2017 Co-founder, Co-leader, Bighorn Basin Dinosaur Project ​ 2010-2015 International Research Associate, Palaeontology Research Team, University of Manchester ​ 2010-2014 Co-leader, New Jersey State Museum’s Paleontology Field Camp ​ 2007-2009 Interim Assistant Curator of Natural History, New Jersey State Museum ​ 2006-2007 Manager, Dinosaur Hall Fossil Preparation Laboratory ​ 2004-2005 Staff Environmental Geologist, Cobb Environmental and Technical Services, Inc. ​ 1 FIELD EXPERIENCE 2010-2019 Beartooth Butte, Morrison, Lance, and Fort Union formations, Bighorn Basin, Wyoming and Montana, U.S.A. (Devonian, Jurassic, Late Cretaceous, and earliest Paleocene, respectively) 2010 Hell Creek Formation, South Dakota, U.S.A.
    [Show full text]