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Mass-Independent Isotopic Signatures of Volcanic Sulfate from Three Supereruption Ash Deposits in Lake Tecopa, California
Earth and Planetary Science Letters 282 (2009) 102–114 Contents lists available at ScienceDirect Earth and Planetary Science Letters journal homepage: www.elsevier.com/locate/epsl Mass-independent isotopic signatures of volcanic sulfate from three supereruption ash deposits in Lake Tecopa, California Erwan Martin ⁎, Ilya Bindeman Department of Geological Sciences, 1272 University of Oregon, Eugene OR 97403, USA article info abstract Article history: Hundreds to thousands of megatons of sulfur dioxide released by supereruptions can change chemical and Received 10 October 2008 physical properties of the atmosphere and thus induce climate perturbations. We present oxygen and sulfur Received in revised form 24 February 2009 isotope analyses of sulfate in 48 volcanic ash samples, and 26 sediment samples from dry lake beds in the Accepted 2 March 2009 Tecopa basin, California, USA. These ash layers represent three supereruptions, including the 0.64 Ma Lava Available online 10 April 2009 Creek Tuff, 2.04 Ma Huckleberry Ridge Tuff and 0.76 Ma Bishop Tuff. 17 Editor: R.W. Carlson Mass-independent oxygen signatures (Δ O up to 2.26‰) that are present in these ash units, and not in associated sediments, indicate oxidation of volcanic SO2 by mass-independent ozone and its products. In this Keywords: study, we consider the formation, deposition, preservation and dilution of mass-independent volcanic sulfate oxygen and sulfur isotopes (MIVS). Using the isotopic compositions of the sulfates, we construct a mixing model that demonstrates that isotopic mass-independence the main source of sulfate in Lake Tecopa is mass-dependent sediment-derived sulfate (MDSDS, >77%). sulfate However, ash beds still preserve up to 23% of MIVS that initially had undiluted Δ17O value around 8‰, and aerosols Δ33S as low as −0.35‰, and Δ36S up to 1.08‰. -
Middle Eocene CO and Climate Reconstructed from the Sediment Fill
Middle Eocene CO2 and climate reconstructed from the sediment fill of a subarctic kimberlite maar Alexander P. Wolfe1, Alberto V. Reyes2*, Dana L. Royer3, David R. Greenwood4, Gabriela Doria3,5, Mary H. Gagen6, Peter A. Siver7, and John A. Westgate8 1Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada 2Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta T6G 2E3, Canada 3Department of Earth and Environmental Sciences, Wesleyan University, Middletown, Connecticut 06459, USA 4Department of Biology, Brandon University, Brandon, Manitoba R7A 6A9, Canada 5Department of Plant Sciences, University of Cambridge, Cambridge CB2 3EA, UK 6Department of Geography, Swansea University, Singleton Park, Swansea SA2 8PP, UK 7Department of Botany, Connecticut College, New London, Connecticut 06320, USA 8Department of Earth Sciences, University of Toronto, Toronto, Ontario M5S 3B1, Canada ABSTRACT mismatch and frustrates efforts to understand the sensitivity of past equi- Eocene paleoclimate reconstructions are rarely accompanied librium climate response to greenhouse gas forcing. by parallel estimates of CO2 from the same locality, complicating Our objective is to assess climate and greenhouse-gas forcing for assessment of the equilibrium climate response to elevated CO2. We Northern Hemisphere subarctic latitudes during the latest middle Eocene reconstruct temperature, precipitation, and CO2 from latest middle by exploiting a remarkable terrestrial sedimentary archive. The Giraffe Eocene (ca. 38 Ma) terrestrial sediments in the posteruptive sediment kimberlite locality (paleolatitude ~63°N) comprises the posteruptive sedi- fill of the Giraffe kimberlite in subarctic Canada. Mutual climatic mentary fill of a maar formed when kimberlite intruded Precambrian cra- range and oxygen isotope analyses of botanical fossils reveal a humid- tonic rocks of the Slave Province at 47.8 ± 1.4 Ma (Creaser et al., 2004). -
Geology and Petrology of the Devils Tower, Missouri Buttes, and Barlow Canyon Area, Crook County, Wyoming Don L
University of North Dakota UND Scholarly Commons Theses and Dissertations Theses, Dissertations, and Senior Projects 1980 Geology and petrology of the Devils Tower, Missouri Buttes, and Barlow Canyon area, Crook County, Wyoming Don L. Halvorson University of North Dakota Follow this and additional works at: https://commons.und.edu/theses Part of the Geology Commons Recommended Citation Halvorson, Don L., "Geology and petrology of the Devils Tower, Missouri Buttes, and Barlow Canyon area, Crook County, Wyoming" (1980). Theses and Dissertations. 119. https://commons.und.edu/theses/119 This Dissertation is brought to you for free and open access by the Theses, Dissertations, and Senior Projects at UND Scholarly Commons. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of UND Scholarly Commons. For more information, please contact [email protected]. GEOLOGY AND PETROLOGY OF THE DEVILS TOWER, MISSOURI BUTTES, AND BARLOW CANYON AREA, CROOK c.OUNTY, WYOMING by Don L. Halvorson Bachelor of Science, University of Colorado, 1965 Master of Science Teaching, University of North Dakota, 1971 A Dissertation Submitted to the Graduate Faculty of the University of North Dakota in partial fulfillment of the requirements for the degree of Doctor of Philosophy Grand Forks, North Dakota May 1980 Th:ls clisserratio.1 submitted by Don L. Halvol'.'son in partial ful fillment of the requirements fo1· the Degree of Doctor of Philosophy from the University of North Dakota is hereby approved by the Faculty Advisory Committee under whora the work has been done. This dissertation meets the standards for appearance aud con forms to the style and format requirements of the Graduate School of the University of North Dakota, and is hereby approved. -
Water Development Office 6920 YELLOWTAIL ROAD TELEPHONE: (307) 777-7626 CHEYENNE, WY 82002 FAX: (307) 777-6819 TECHNICAL MEMORANDUM
THE STATE OF WYOMING Water Development Office 6920 YELLOWTAIL ROAD TELEPHONE: (307) 777-7626 CHEYENNE, WY 82002 FAX: (307) 777-6819 TECHNICAL MEMORANDUM TO: Water Development Commission DATE: December 13, 2013 FROM: Keith E. Clarey, P.G. REFERENCE: Snake/Salt River Basin Plan Update, 2012 SUBJECT: Available Groundwater Determination – Tab XI (2012) Contents 1.0 Introduction .............................................................................................................................. 1 2.0 Hydrogeology .......................................................................................................................... 4 3.0 Groundwater Development .................................................................................................... 15 4.0 Groundwater Quality ............................................................................................................. 21 5.0 Geothermal Resources ........................................................................................................... 22 6.0 Groundwater Availability ...................................................................................................... 22 References ..................................................................................................................................... 23 Appendix A: Figures and Table ....................................................................................................... i 1.0 Introduction This 2013 Technical Memorandum is an update of the September 10, 2003, -
A Preliminary Assessment of Paleontological Resources at Bighorn Canyon National Recreation Area, Montana and Wyoming
A PRELIMINARY ASSESSMENT OF PALEONTOLOGICAL RESOURCES AT BIGHORN CANYON NATIONAL RECREATION AREA, MONTANA AND WYOMING Vincent L. Santucci1, David Hays2, James Staebler2 And Michael Milstein3 1National Park Service, P.O. Box 592, Kemmerer, WY 83101 2Bighorn Canyon National Recreation Area, P.O. Box 7458, Fort Smith, MT 59035 3P.O. Box 821, Cody, WY 82414 ____________________ ABSTRACT - Paleontological resources occur throughout the Paleozoic and Mesozoic formations exposed in Bighorn Canyon National Recreation Area. Isolated research on specific geologic units within Bighorn Canyon has yielded data on a wide diversity of fossil forms. A comprehensive paleonotological survey has not been previously undertaken at Bighorn Canyon. Preliminary paleontologic resource data is presented in this report as an effort to establish baseline data. ____________________ INTRODUCTION ighorn Canyon National Recreation Area (BICA) consists of approximately 120,000 acres within the Bighorn Mountains of north-central Wyoming and south-central Montana B (Figure 1). The northwestern trending Bighorn Mountains consist of over 9,000 feet of sedimentary rock. The predominantly marine and near shore sedimentary units range from the Cambrian through the Lower Cretaceous. Many of these formations are extremely fossiliferous. The Bighorn Mountains were uplifted during the Laramide Orogeny beginning approximately 70 million years ago. Large volumes of sediments, rich in early Tertiary paleontological resources, were deposited in the adjoining basins. This report provides a preliminary assessment of paleontological resources identified at Bighorn Canyon National Recreation Area. STRATIGRAPHY The stratigraphic record at Bighorn Canyon National Recreation Area extends from the Cambrian through the Cretaceous (Figure 2). The only time period during this interval that is not represented is the Silurian. -
Water Resources of Teton County, Wyoming, Exclusive of Yellowstone National Park
WATER RESOURCES OF TETON COUNTY, WYOMING, EXCLUSIVE OF YELLOWSTONE NATIONAL PARK 105° 104° U.S. GEOLOGICAL SURVEY Water-Resources Investigations Report 95-4204 Prepared in cooperation with the WYOMING STATE ENGINEER WATER RESOURCES OF TETON COUNTY, WYOMING, EXCLUSIVE OF YELLOWSTONE NATIONAL PARK by Bernard T. Nolan and Kirk A. Miller U.S. GEOLOGICAL SURVEY Water-Resources Investigations Report 95-4204 Prepared in cooperation with the WYOMING STATE ENGINEER Cheyenne, Wyoming 1995 U.S. DEPARTMENT OF THE INTERIOR BRUCE BABBITT, Secretary U.S. GEOLOGICAL SURVEY GORDON P. EATON, Director The use of trade, product, industry, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. For additional information Copies of this report can be write to: purchased from: District Chief U.S. Geological Survey U.S. Geological Survey Earth Science Information Center Water Resources Division Open-File Reports Section 2617 E. Lincolnway, Suite B Box 25286, Denver Federal Center Cheyenne, Wyoming 82001 -5662 Denver, Colorado 80225 CONTENTS Page Abstract................................................................................................................................................................................. 1 Introduction........................................................................................................................................................................... 2 Purpose and scope...................................................................................................................................................... -
Montana Bureau of Mines and Geology
Montana Bureau of Mines and Geology GEOLOGIC MAP OF THE GARDINER 30' x 60' QUADRANGLE, SOUTH-CENTRAL MONTANA By Richard B. Berg, Jeffrey D. Lonn, and William W. Locke* Montana Bureau of Mines and Geology Open File Report MBMG 387 1999 REVISIONS Map: 9/01 11/08 Map and text: 12/02 9/03 4/07 This report has been reviewed for conformity with Montana Bureau of Mines and Geology’s technical and editorial standards. Partial support has been provided by the STATEMAP component of the National Cooperative Geologic Mapping Program of the U.S. Geological Survey under Contract Number 98- HQ-AG 2080. (*) Department of Earth Sciences, Montana State University, Bozeman, MT 59701 Correlation Chart of Cenozoic and Mesozoic Map Units Gardiner 30’ x 60’ Quadrangle Holocene Qls Qal Quaternary Quaternary Qao Qta Pleistocene Qg Qgt Qgl Qtr Qba Qlc Miocene Pliocene/ Unconformity Cenozoic Ts Thr Tb a Tg Tr Tl Tfpy Tmz Tdaf Tdap Td Tdip Ta Tanf Tavv d a e TpCi Ti Tav Tms Unconformity Eocene Tertiary Tgcb Tgcf Tgcs Tse Tslc 1 Tsec Unconformity Cretaceous ? Kdi Ks Klf Upper Lower ? Kclf Kmfr Kk Triassic Triassic Jurassic/ Mesozoic Mesozoic JTRs Correlation of Paleozoic and Precambrian Map Units Gardiner 30’ x 60’ Quadrangle PMpa Psh Permian PMs IPMqa Pennsylvanian Mm Mississippian Pzs Paleozoic DOs Devonian and Ordovician Єsrp Єs Cambrian Єpf Unconformity ? TpCi pЄim pЄmy Proterozoic Unconformity Precambrian Asw1 Asw2 Asw3 Asw4 Asw5 Asw6 Asw7 Archean Aamh Aga Agn Agr Anc Aqa As Ash 2 Description of Map Units Qls Landslide deposit (Holocene) - Landslides are typically developed at the unconformity between Tertiary volcanic units and the Precambrian basement, possibly in bentonite beds situated at the base of the Tertiary volcaniclastic sequence. -
Paleontological Resources Technical Report Riley Ridge to Natrona Project DECEMBER 2018
U.S. Department of the Interior Bureau of Land Management Paleontological Resources Technical Report Riley Ridge to Natrona Project DECEMBER 2018 Table of Contents 1.0 Introduction ......................................................................................................................................... 1 2.0 Regional Setting .................................................................................................................................. 1 3.0 Inventory Methodology ....................................................................................................................... 1 4.0 Potential Fossil-Bearing Geologic Formations ................................................................................... 4 4.1 Browns Park Formation (PFYC 3) ............................................................................................ 4 4.2 White River Formation or Group (PFYC 5) .............................................................................. 5 4.3 Wind River Formation (PFYC 5) .............................................................................................. 5 4.4 Green River Formation (PFYC 5) ............................................................................................. 5 4.5 Wasatch Formation (PFYC 5) ................................................................................................... 5 4.6 Battle Spring Formation (PFYC 3)............................................................................................ 6 4.7 Bridger Formation -
![Italic Page Numbers Indicate Major References]](https://docslib.b-cdn.net/cover/6112/italic-page-numbers-indicate-major-references-2466112.webp)
Italic Page Numbers Indicate Major References]
Index [Italic page numbers indicate major references] Abbott Formation, 411 379 Bear River Formation, 163 Abo Formation, 281, 282, 286, 302 seismicity, 22 Bear Springs Formation, 315 Absaroka Mountains, 111 Appalachian Orogen, 5, 9, 13, 28 Bearpaw cyclothem, 80 Absaroka sequence, 37, 44, 50, 186, Appalachian Plateau, 9, 427 Bearpaw Mountains, 111 191,233,251, 275, 377, 378, Appalachian Province, 28 Beartooth Mountains, 201, 203 383, 409 Appalachian Ridge, 427 Beartooth shelf, 92, 94 Absaroka thrust fault, 158, 159 Appalachian Shelf, 32 Beartooth uplift, 92, 110, 114 Acadian orogen, 403, 452 Appalachian Trough, 460 Beaver Creek thrust fault, 157 Adaville Formation, 164 Appalachian Valley, 427 Beaver Island, 366 Adirondack Mountains, 6, 433 Araby Formation, 435 Beaverhead Group, 101, 104 Admire Group, 325 Arapahoe Formation, 189 Bedford Shale, 376 Agate Creek fault, 123, 182 Arapien Shale, 71, 73, 74 Beekmantown Group, 440, 445 Alabama, 36, 427,471 Arbuckle anticline, 327, 329, 331 Belden Shale, 57, 123, 127 Alacran Mountain Formation, 283 Arbuckle Group, 186, 269 Bell Canyon Formation, 287 Alamosa Formation, 169, 170 Arbuckle Mountains, 309, 310, 312, Bell Creek oil field, Montana, 81 Alaska Bench Limestone, 93 328 Bell Ranch Formation, 72, 73 Alberta shelf, 92, 94 Arbuckle Uplift, 11, 37, 318, 324 Bell Shale, 375 Albion-Scioio oil field, Michigan, Archean rocks, 5, 49, 225 Belle Fourche River, 207 373 Archeolithoporella, 283 Belt Island complex, 97, 98 Albuquerque Basin, 111, 165, 167, Ardmore Basin, 11, 37, 307, 308, Belt Supergroup, 28, 53 168, 169 309, 317, 318, 326, 347 Bend Arch, 262, 275, 277, 290, 346, Algonquin Arch, 361 Arikaree Formation, 165, 190 347 Alibates Bed, 326 Arizona, 19, 43, 44, S3, 67. -
Late Tertiary and Quaternary Geology of the Tecopa Basin, Southeastern California
DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY LATE TERTIARY AND QUATERNARY GEOLOGY OF THE TECOPA BASIN, SOUTHEASTERN CALIFORNIA By John W. Hillhouse MISCELLANEOUS INVESTIGATIONS SERIES Published by the U.S. Geological Survey, 1987 G DEPARTMENT OF THE INTERIOR TO ACCOMPANY MAP 1-1728 U. S. GEOLOGICAL SURVEY LATE TERTIARY AND QUATERNARY GEOLOGY OF THE TECOPA BASIN, SOUTHEASTERN CALIFORNIA By John W. Hillhouse ABSTRACT INTRODUCTION Stratigraphic units in the Tecopa basin, located in SCOPE OF THE INVESTIGATION southeastern California, provide a framework for The objectives of this study were to establish the interpreting Quaternary climatic change and tectonism distribution, age, and structure of Quaternary deposits in along the present Amargosa River. During the late Pliocene the Tecopa basin. This information provides a basis for and early Pleistocene, a climate that was appreciably interpreting past episodes of faulting and climatic change in wetter than today' s sustained a moderately deep lake in the Amargosa River drainage system. The Tecopa basin is the Tecopa basin. Deposits associated with Lake Tecopa ideal for studies of Quaternary history because erosion has consist of lacustrine mudstone, conglomerate, volcanic ash, clearly exposed the stratigraphy, and the deposits of and shoreline accumulations of tufa. Age control within the Pleistocene Lake Tecopa have proven to be datable. lake deposits is provided by air-fall tephra that are Volcanic ash beds within the lake deposits have been correlated with two ash falls from the Yellowstone caldera, chemically correlated with · isotopically dated volcanic the Lava Creek (0.62 Ma) and Huckleberry Ridge (2.02 sources in the Yellowstone (Wyoming) and Long Valley Ma) Tuffs, and one from the Long Valley caldera, the (California) calderas (lzett, 1981; Sarna-Wojc:cki and Bishop Tuff (0. -
Neogene-Quaternary Tectonics and Volcanism of Southern Jackson Hole, Wyoming and Southeastern Idaho
Lageson and others -- Neogene-Quaternary Tectonics and Volcanism 115 Neogene-Quaternary Tectonics and Volcanism of Southern Jackson Hole, Wyoming and Southeastern Idaho David R. Lageson Department of Earth Sciences, Montana State University, Bozeman, MT 59717 David C. Adams Department of Earth Sciences, Montana State University, Bozeman, MT 59717 Lisa Morgan U.S. Geological Survey, Box 25046, MS-966, Federal Center, Denver, CO 80225 Kenneth L. Pierce U.S. Geological Survey, Box 25046, MS-980, Federal Center, Denver, CO 80225 Robert B. Smith Department of Geology and Geophysics, 717 W.C. Browning Building, University of Utah, Salt Lake City, UT 84112 INTRODUCTION This field trip guide focuses on the region south of the Snake volcanic rocks of the Snake River Plain Yellowstone region River Plain between Pocatello, Idaho and Jackson, Wyoming (Fig. (Adams, 1997). The second aspect involves a reinterpretation of 1). Our intent is not to rewrite the excellent geologic field guides large slide blocks found primarily within the Grand-Swan Valley that have already been published (e.g., Love and Reed, 1971; of southeast Idaho. We (Morgan and Lageson) suggest an alter- Love and Love, 1983; Love and Love, 1988; Love, 1989; Smith native hypothesis to the slow creep model of emplacement and Downs, 1989; Smith et al., 1990; Pierce and Good, 1992; (Boyer and Hossack, 1992), namely that some slide blocks may Good and Pierce, 1996), but rather to synthesize regional tec- have been emplaced catastrophically during large magnitude earth- tonic relations and present new information relative to the mag- quakes associated with large-volume silicic eruptions in the Heise matic and structural history of the region. -
Stratigraphy, Paleotectonics and Paleoenvironments of the Morrison Formation in the Bighorn Basin of Wyoming and Montana Dibakar Goswami Iowa State University
Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1993 Stratigraphy, paleotectonics and paleoenvironments of the Morrison Formation in the Bighorn Basin of Wyoming and Montana Dibakar Goswami Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Geology Commons Recommended Citation Goswami, Dibakar, "Stratigraphy, paleotectonics and paleoenvironments of the Morrison Formation in the Bighorn Basin of Wyoming and Montana " (1993). Retrospective Theses and Dissertations. 10434. https://lib.dr.iastate.edu/rtd/10434 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely afiect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand corner and continuing from left to right in equal sections with small overlaps.