DOCSLIB.ORG

Surface Geology Wind/Bighorn River Basin Wyoming and Montana

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Surface Geology Wind/Bighorn River Basin Wyoming and Montana WYOMING STATE GEOLOGICAL SURVEY Plate I Thomas A. Drean, State Geologist Wind/Bighorn Basin Plan II - Available Groundwater Determination Technical Memorandum Surface Geology - Wind/Bighorn River Basin SWEET GRASS R25E R5E R15E R30E R10E R20E MONTANA Mm PM Jsg T7S KJ !c Pp Jsg KJ water Qt Surface Geology Ti ! Red Lodge PM DO PM PM Ts Ts p^r PM N ^r DO KJ DO !c Wind/Bighorn River Basin Tts Mm water Mm Ti Ti ^r DO Kmt Ti LOCATION MAP p^r ^r ^r Qt WYOMING Wyoming and Montana Kf Qt Ti p^r !c p^r PM 0 100 250 Miles Tts ^r PM DO Ti Jsg MD Ts Ti MzPz Kmv !Pg Qt compiled DO DO Tts Ts Taw DO DO DO water Qt Kc PM ^r Twl Qt Ob O^ by ^r Mm DO !c MD MONTANA Thr Ti Kc Qr Klc p^r Kmv Kc : # Ts ^r : O^ Nikolaus Gribb, Brett Worman, # Ts # water : PM Taw # Kf : PM !cd : Ket Qb Taw Qu Twp Thr # Ki Twl 345 P$Ma : Thr O^ Qa KJg Tfu : Jsg ^r Qu : :: # Kl (! KJk : Qr Qls Tomas Gracias, and Scott Quillinan Qb : Thr Ts Taw # Tfu 37 PM Kft: : # :: T10S Qls # Thr : # ^r Kc (! Kft Kmt # :::::: p^r :: : Qu KJk Kc MD Taw DO Qu # p^r Qg :: Km KJ WYOMING Taw Ti : Kl 2012 Thr : Qb # # # Qg : water DO Qls ::: !c !Pg !cd MDO water water Kc Qa :::::: :: Kmt ::: : Twl 90 : Ti Ts Qu Qa Qg Kmv !Pcg Mm KJk : Qg : 212 : Qu Qg £¤ Kmv KJ ¨¦§ Tts Taw p^r ^r # Kl : Kf Kf 338 Ob !cd Qu Qu Ttp # (! : : : p^r ::: !Pg O^ MD P$Ma Thr : Qa # DO Km Qls 343 ^r Qls Taw : Qb Qg Qls Qa Km Jsg water (! : Qb # !cd ^r Kc BighornLake : MD # Taw Qa Qls Qt MD A′ MD MD Qg Twl !Pg Qu Qb Tii # Twp ^r water MzPz Qg Tfu Kl ::: Taw Taw Twp Qls : Qt Kmv Qa Ob P$Ma : Thr Qa # Tcr ^r water Qa Kft # Qt O^ Qb 294 : Thr p^r Ttl # # 296 !( Qu O^ Qb Qa # Qa Tii # : MD MD # MDO !( Qt Qa !c O^ : ::: # Kc : Qr : Kc 0 5 10 20 30 Miles p^r Qu Tts # # ^r Km 310 Kf Qg : Ts : Qg Qg Twl £ Qa # Qr : ¤ : : : Qr Qr N : Ttl Qa # Qa # Thr ^r : DO Tfu :: Kmv PM MD Taw Qr Ts Qg Ti # KJ Taw : # Qg : p^r : Qa : 14 P$Ma Thr Qu Taw Qb # # # ! £¤ O^ : : Lovell Scale 1:380,000 : Ti : : # Kc : Kc O^# # : : Twl : Tcr : 294 :: ^r # : Kl ::: Kf Qls p^r Mm Twp : : : # !( : Qt Kf # # : Qg : Taw # MDO Kmv ::: Kc Qt Kmt Sheridan ! 1 inch equals approximately 6 miles water MD : : Tts Kmt : Ttl : # ^r DO # Qa # # # # Qt # : : # Taw Ti Qg : : ^r : : : : Taw : Qt Kmt : Qg # Twp Qg : ALT Qu Ttl # Twl # :: Kmv : Kmt 14 Qls # Ts : Ttp £ : ¤ : : : : Qr : 89 Qb : # : : : # Qb ¤£ Qr : : # MDO ^r : :: Kmv : Km Taw : Qr # # # # : : Ttp # # Mm ::: !Pg KJg : MzPz : : : water Qg Qg Powell : : p^r : # Qls : Kc Kmt KJ : : # # Qls ! : O^ Kft Tfu : PM T55N : # : Ttl # PM Tfu Kf MD Qu # # # # # MD Qr : Qa Ttp : : # Kl : : : : Qb Taw # : Qt Qa Kmt : Ttl Twp # Jsg 295 !c : Taw Qu Qb Twp Thr # ALT !( Kf !c MONTANA Qu Qr : MDO Jsg Twp # : Qa Qa Ttl 14 Qt Ob : Qls # Taw # : : # # ¤£ Explanation Thr # Jsg : # # # ::: Thr : # Kmt # KJ Qr : KJ : # : : : Qls : Kl Qa MDO !cd # : Tcr # !Pg : # # Tcr Kf : # : Tfu # Ob KJ Kmt 335 : : Qu DO MzPz : Kc : water Qu DO Jsg !( Qu Qa # # MDO Kmt KJ KJ MD : : water Ttp Qg : Qls ^r PM Qt ::: 90 Interstate highway 14 US highway 343 State highway Wind River/Bighorn River Basin hydrologic divide 20 : Qt Kmv !c Kmt ¤£ ( : : Qa Mm Ob KJ PM ¤£ :: Kl !c ¨¦§ Ttl Ttl Qb Qa Mm !cd # Kf Qa : # O^ Qu Ti : Taw Kmt ^r : : : !cd Jsg Qa Km MD ! Twp Taw Qa Ob Line of section (Plate VI.) City or town # Qu Ttp : Qls !Pcg:: Qls Kl ::: : Ob A A′ !c # Tfu Kmv Kc MD : !c Qu : MzPz Taw Jsg # Kmt Qls : Qr Qg Kf Km # Qt Kf Normal fault - location certain State boundary : Ttp : : Qa : PM Taw : Qls 120 Kmv Qls barbell on downthrown side : Qu water !( ## : : Ttl : Qr : Qa : Twp Kmt !cd Jsg Twl Qt Qa Mm KJ O^ Normal fault - location concealed } Qg MzPz 32 789 # Kc County boundary : : : Kf Jsg : Twp KJ ^r # Mm (! (! # : Qu Ttl KJ p^r Jsg ## : 310 Thrust fault - location certain Ttp: Qt Qg Mm £¤ 14 Qls Qr Qu : water : Ttp KJg# !cd Kmt # Qt PM Kmt £¤ PM sawteeth on upper plate Township and Range boundaries water : Kmt Qg # Qt MD Thrust fault - location concealed } : DO !Pcg : : Qls Twl O^ Qr : # Kc Kmt Qa Qt # : B′ Qt Qt # Jsg PM Wind River Indian Reservation boundary : KJ Ttp # Twp Mm Qt # Gravity slide masses related to Heart Mountain, South Fork, Qa Qa # # Ttp : # : : ! Kmt : : Ttl Kf : : Ttl Qg : # Cody Kf Qg and eastern/southeastern Absaroka detachments : : : Kl Qt KJ MDO ^r Kmt KJ PM Yellowstone National Park boundary : Qls # 20 Kf Qr Qls # Kc Kmt 14 16 water : : Twl # MzPz Kmv Tfu# £¤ £¤ £¤ : Jsg QTg Qr : Kl Jsg : : : Kc Buffalo Bill Res. Kf : ! p^r KJs : : Qu : MD : !cd Qt Kc Qu Qa# Tfu Qt ## : Qu # : Greybull Yellowstone Ti Kc # : # Jsg KJ !Pcg Twp Qa # KJ Ttp £20 # Km QTg Qg Lake ¤ : 16 # water Kf !cd # Kl 14 ¤£ MDO : : Qls # Kft # Kmt Kf Ttp ¤£ : # Qg Kf H′ !Pg Qr Ttp Qa Qa KJ Kf Qt Twl Qa : Ttl Kc Qa Kl #Kmv Qu : Qa : Qr Ttl : Qt H : !Pcg Kmv # Kc MD Ttp : Qa Qt Kft PM water : Qa water Kc Kmv 30 Surface Geology Ti Kf (! # Qls Qg # : Kc Twr : Ttp Twl # Kc Kf Qu Qg Qls Twp Qa Qt : O^ (Units in boldface are described in Chapter 7.) : # # KJg Qg water Ti 120 # Qt ! Qa Twp : # Qa (! Kc : KJ Kmt Basin # Qa Ttp # Kl # Kc : : Ti Qr # Jsg Ttl Qg Kc # Kft Kf : Ttl Kf :: Km Twr Wyoming Geologic Units Montana Geologic Units, as named Twi Ti # :: : Twl # # : Qa p^r : water Twi Kft # Qg :: Qt :: :: # : Ttl ## # Qls Ttl # Kmv for their Wyoming equivalents Qg # # : : : :: # # Ttp : # Km : Jsg CENOZOIC Qg Qg # Kf Qt Tfu Km PM T50N # # Kmv # :: Kc Kf Twl Kf KJ Cretaceous continued # CENOZOIC water Twi Twi Ti # Kl Qt Kl Quaternary : Qg KJ # KJ Kf Km Tta Qt Kb Qu Twi Ttp Twl Qls Qls I′ Qa KJ Quaternary : Kft Kmt Qls J′ Alluvium & colluvium Cloverly & Morrison Formations : MD Qg KJ Km Ttl Twp Qa # Qa : Ttl Qls 31 O^ KJs Alluvium & colluvium # (! Qu : KJg Undivided surficial deposits Cloverly, Morrison, & Sundance Formations Kha # Qt Kmt Qg Ttl Tfu 16 Twp # Ttp Qa Qt KJ £¤ Qu : KJ Undivided surficial deposits Ttp Twl Ql KJg Cloverly, Morrison, Sundance, & Gypsum Spring Formations Twi Qt Kc Kc Playa lake and other lacustrine deposits : Twi : : : # Ttl : Twr Qls Kc Kmt : Qg Glacial deposits # Qt Kft Kl Qt KJ Kf Qg KJk Ellis Group Qt Twi Ts Km # Qls Landslide deposits Twi Qt 20 PM water Qls Qt ¤£ KJ : Qt Gravel, pediment, and fan deposits Qa # K! Cloverly, Morrison, Sundance, & Gypsum Spring Formations & : Qg Twp Qls 789 Qs Dune sand and loess deposits £¤89 Ttl Ti !( Tml Nugget Sandstone Qg # : Kf : Twi Meeteetse Qt Twl Kft Kmv Qg # ! KJ Glacial deposits Qb Qu # Kc # Kc Qa p^r Twi Twi Km Jurassic Ttl Kf Upper Tertiary Twl Qls Qt Qg Ts Qt !Pcg Qu Gravel, pediment, and fan deposits Js Sundance Formation water Kmv 16 Tml Thr Ttl Qa 290 Tt Kmv £¤ Qls Huckleberry Ridge Tuff of Yellowstone Group Ttl Kft (! Kl MD Qt Jsg QTg Terrace gravel deposits Jsg Sundance & Gypsum Spring Formations : PM Twi Ti Twl Qa Qt Jsg Twi Qg Twi Twl Kc Kl # Tta Kmt KJ Ti Intrusive igneous rocks Twl Twl# Qt Km Qt Tfu Qb Basalt flows, tuff, and intrusive igneous rocks J! Qls Qa KJ Sundance & Gypsum Spring Formations & Nugget Sandstone Ttl Ti Twl I Qa MD Tts Thorofare Creek Group Ttl : Qg Kmv Kl Kc : : Qls Qt J Kf KJ Qr Qg : Qa : !Pg O^ Rhyolite flows, tuff, and intrusive igneous rocks J!gn Gypsum Spring Formation & Nugget Sandstone Twi : Kf Qa # Qt 433 : Twp Qa Ttl Ti : Qa Wapiti Formation Twi Qa # Kc (! ! : Qa # Km Qg Qls Kmt Kc Yellowstone J!n Nugget Sandstone Kf Twl Ten Sleep Ts : Twl Qt ! Upper Tertiary Group Crescent Hill Basalt : : Ta : # Qls Kc Kmv 431 Twl KJ J!gc Gypsum Spring & Chugwater Formations & Nugget Sandstone Qa Ta Twl Kf Qa Klm (! Ti : Worland Qg Ti: Qa Qls Kc Twr Thr Huckleberry Ridge Tuff of Yellowstone Group Taw Washburn Group Ti : : : PM : Twl Ti Qg : Twl Kc : : Tii Intrusive and extrusive igneous rocks Twl Ta : Willwood Formation Qls : # Qa Kmt Triassic Twi # Qt Qt Qg Qg Ti # Klm Ti Qg Twl !Pcg Tcv Qa Kft Qt Caldwell Canyon Volcanics !c Chugwater Formation Tfu Fort Union Formation Ta : Tfu Qg 432 434 Mm Ti : # Kc (! Twl !( : Tmu Ti # Kc : Tfu Klm Jsg Upper Miocene rocks !cd Chugwater & Dinwoody Formations Qls Tt Tfu Qa Ta Twl Ti Ta : Qls 171 : # (! Kmt Qa PM Tm Miocene rocks MESOZOIC : # Kmv !Pcg Chugwater & Goose Egg Formations Ti # Klm Twl Tfu Klm O^ Qa : Ti # Tt : Tfu Kmt : : Twl Twl 20 Tml Lower Miocene rocks; includes Split Rock Formation Cretaceous IDAHO PM : : : ¤£ !Pg Goose Egg Formation Qls Klm Twl MD O^ Tt Twl T45N Kl Tcv # Qa Qa Lance Formation Ti Kc Tt Kmv KJ Qt Tfu Kmv MzPz Mesozoic & Paleozoic rocks WYOMING Ti Tt Kc Klm Tfu PM Lower Tertiary Km Meeteetse Formation O^ # # Twl : Tt: Ti Tt Tt Kc Mm Tcv p^r Twr Kmv : White River Formation Mesaverde Formation : Qa Ti Tt Qt : Twi PM Ti Tt : Kmv Kl !Pcg PALEOZOIC Qls : : Qt : MD Ti # Tt Kc Ti Klm : Pp Twi Tt Intrusive igneous rocks Kc Cody Shale Twi Qa Tt Ta Tt Kc Pzr : Twi # Kft # Km Paleozoic rocks Tt : # !cd : Mm # # Tt Kmv : Ta O^ # # Tt 120 Kmv Klm Tts Thorofare Creek & Sunlight Groups Kf Tt # ! Frontier Formation PM PM : ( Ta : Kmv Kft 789 MD Qls# Qg water PM : Ti # Qt (! # # Qa Qa Tt : : Ta Kmv Qt !Pg Twi Ta Ta MD MD Tt Wiggins Formation Kft Frontier Formation, Mowry & Thermopolis Shales # Tt # Pp Qls # Kc Qa PM Permian p^r : : Qa MD KJg # Qa 26 : Kf Qt Pp ¤£ ¤£26 Tim Qg Qa Qls Kmt Jsg Ttl Two Ocean & Langford Formations Pp Phosphoria Formation/Park City Formation Kmt PM Tt Twl Qt KJg !Pg Mowry Shale, Muddy Sandstone, & Thermopolis Shale Qls # Qa # Qt A # Qls Qls Qa Qls Qa Qt Kc 89 Ta Tt O^ Ta # 170 ¤£ Twdr KJg Kc (! KJg Kmt Kf Tt Tepee Trail Formation P$Ma KJ # !cd Qls Twdr MD Tt Kf Phosphoria & Amsden Formations & Quadrant Sandstone Cloverly & Morrison Formations # Qt Kc Ta Kf # Kf Ta Ta Qa Ta Kmt Kmt Qls Absaroka 191 Qg Qa Twdr Qa Twi # Qt Pp Pp Qt !cd !Pg # Kmt ¤£ Twdr Tt PM C′ Pp KJg KJ !Pcg Ta Aycross
Load more

Recommended publications
  • Download File
    Chronology and Faunal Evolution of the Middle Eocene Bridgerian North American Land Mammal “Age”: Achieving High Precision Geochronology Kaori Tsukui Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Graduate School of Arts and Sciences COLUMBIA UNIVERSITY 2016 © 2015 Kaori Tsukui All rights reserved ABSTRACT Chronology and Faunal Evolution of the Middle Eocene Bridgerian North American Land Mammal “Age”: Achieving High Precision Geochronology Kaori Tsukui The age of the Bridgerian/Uintan boundary has been regarded as one of the most important outstanding problems in North American Land Mammal “Age” (NALMA) biochronology. The Bridger Basin in southwestern Wyoming preserves one of the best stratigraphic records of the faunal boundary as well as the preceding Bridgerian NALMA. In this dissertation, I first developed a chronological framework for the Eocene Bridger Formation including the age of the boundary, based on a combination of magnetostratigraphy and U-Pb ID-TIMS geochronology. Within the temporal framework, I attempted at making a regional correlation of the boundary-bearing strata within the western U.S., and also assessed the body size evolution of three representative taxa from the Bridger Basin within the context of Early Eocene Climatic Optimum. Integrating radioisotopic, magnetostratigraphic and astronomical data from the early to middle Eocene, I reviewed various calibration models for the Geological Time Scale and intercalibration of 40Ar/39Ar data among laboratories and against U-Pb data, toward the community goal of achieving a high precision and well integrated Geological Time Scale. In Chapter 2, I present a magnetostratigraphy and U-Pb zircon geochronology of the Bridger Formation from the Bridger Basin in southwestern Wyoming.
    [Show full text]
  • Paleontological Resources at Grand Teton National Park, Northwestern Wyoming Vincent L
    University of Wyoming National Park Service Research Center Annual Report Volume 22 22nd Annual Report, 1998 Article 7 1-1-1998 Paleontological Resources at Grand Teton National Park, Northwestern Wyoming Vincent L. Santucci National Park Service William P. Wall Georgia College and State University Follow this and additional works at: http://repository.uwyo.edu/uwnpsrc_reports Recommended Citation Santucci, Vincent L. and Wall, William P. (1998) "Paleontological Resources at Grand Teton National Park, Northwestern Wyoming," University of Wyoming National Park Service Research Center Annual Report: Vol. 22 , Article 7. Available at: http://repository.uwyo.edu/uwnpsrc_reports/vol22/iss1/7 This Grand Teton National Park Report is brought to you for free and open access by Wyoming Scholars Repository. It has been accepted for inclusion in University of Wyoming National Park Service Research Center Annual Report by an authorized editor of Wyoming Scholars Repository. For more information, please contact [email protected]. Santucci and Wall: Paleontological Resources at Grand Teton National Park, Northwest PALEONTOLOGICAL RESOURCES AT GRAND TETON NATIONAL PARK, NORTHWESTERN WYOMING + VINCENT L. SANTUCCI+ NATIONAL PARK SERVICE KEMMERER + WY WILLIAM P. WALL+ DEPARTMENT OF BIOLOGY GEORGIA COLLEGE AND STATE UNIVERSITY MILLEDGEVILLE + GA + ABSTRACT landscape, and though the last great ice masses melted 15 ,000 years ago, some re-established small Paleontological resources occur throughout glaciers still exist. the formations exposed in Grand Teton National Park. A comprehensive paleontological survey has This report provides a preliminary not been attempted previously at Grand Teton assessment of paleontological resources identified at National Park. Preliminary paleontologic resource Grand Teton National Park. data is given in this report in order to establish baseline data.
    [Show full text]
  • Dinotracks.Indb 358 1/22/16 11:23 AM Dinosaur Tracks in Eolian Strata: New Insights Into Track Formation, Walking Kinetics and Trackmaker Behavior 18
    358 DinoTracks.indb 358 1/22/16 11:23 AM Dinosaur Tracks in Eolian Strata: New Insights into Track Formation, Walking Kinetics and Trackmaker Behavior 18 David B. Loope and Jesper Milàn Dinosaur tracks are abundant in wind-blown hooves of the bison deformed soft, laminated sediment – the Mesozoic deposits, but the nature of loose eolian sand perfect medium to preserve recognizable tracks. The next makes it difficult to determine how they are preserved. This windstorm buried the tracks. Today, the thick cover of grasses also raises the questions: Why would dinosaurs be walking protects the land surface so well that there are no soft, lami- around in dune fields in the first place? And, if they did go nated sediments for cattle to step on. And, if any tracks were, there, why would their tracks not be erased by the next wind somehow, to get formed, no moving sediment would be avail- storm? able to bury them. Mesozoic eolian sediments around the world, which have been the focus of a number of case studies Introduction in recent years, preserve the tracks of dinosaurs that walked on actively migrating sand dunes. This chapter summarizes Most dunes today form only in deserts and along shore- the known occurrences of dinosaur tracks in Mesozoic eo- lines – the only sandy land surfaces that are nearly devoid of lian strata and discusses their unique modes of preservation plants. Normally plants slow the wind at the ground surface and the anatomical and behavioral information about the enough that sand will not move even when the plant cover trackmakers that can be deduced from them.
    [Show full text]
  • Mammal and Plant Localities of the Fort Union, Willwood, and Iktman Formations, Southern Bighorn Basin* Wyoming
    Distribution and Stratigraphip Correlation of Upper:UB_ • Ju Paleocene and Lower Eocene Fossil Mammal and Plant Localities of the Fort Union, Willwood, and Iktman Formations, Southern Bighorn Basin* Wyoming U,S. GEOLOGICAL SURVEY PROFESS IONAL PAPER 1540 Cover. A member of the American Museum of Natural History 1896 expedition enter­ ing the badlands of the Willwood Formation on Dorsey Creek, Wyoming, near what is now U.S. Geological Survey fossil vertebrate locality D1691 (Wardel Reservoir quadran­ gle). View to the southwest. Photograph by Walter Granger, courtesy of the Department of Library Services, American Museum of Natural History, New York, negative no. 35957. DISTRIBUTION AND STRATIGRAPHIC CORRELATION OF UPPER PALEOCENE AND LOWER EOCENE FOSSIL MAMMAL AND PLANT LOCALITIES OF THE FORT UNION, WILLWOOD, AND TATMAN FORMATIONS, SOUTHERN BIGHORN BASIN, WYOMING Upper part of the Will wood Formation on East Ridge, Middle Fork of Fifteenmile Creek, southern Bighorn Basin, Wyoming. The Kirwin intrusive complex of the Absaroka Range is in the background. View to the west. Distribution and Stratigraphic Correlation of Upper Paleocene and Lower Eocene Fossil Mammal and Plant Localities of the Fort Union, Willwood, and Tatman Formations, Southern Bighorn Basin, Wyoming By Thomas M. Down, Kenneth D. Rose, Elwyn L. Simons, and Scott L. Wing U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1540 UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1994 U.S. DEPARTMENT OF THE INTERIOR BRUCE BABBITT, Secretary U.S. GEOLOGICAL SURVEY Robert M. Hirsch, Acting Director For sale by U.S. Geological Survey, Map Distribution Box 25286, MS 306, Federal Center Denver, CO 80225 Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S.
    [Show full text]
  • Eocene Green River Formation, Western United States
    Synoptic reconstruction of a major ancient lake system: Eocene Green River Formation, western United States M. Elliot Smith* Alan R. Carroll Brad S. Singer Department of Geology and Geophysics, University of Wisconsin, 1215 West Dayton Street, Madison, Wisconsin 53706, USA ABSTRACT Members. Sediment accumulation patterns than being confi ned to a single episode of arid thus refl ect basin-center–focused accumula- climate. Evaporative terminal sinks were Numerous 40Ar/39Ar experiments on sani- tion rates when the basin was underfi lled, initially located in the Greater Green River dine and biotite from 22 ash beds and 3 and supply-limited accumulation when the and Piceance Creek Basins (51.3–48.9 Ma), volcaniclastic sand beds from the Greater basin was balanced fi lled to overfi lled. Sedi- then gradually migrated southward to the Green River, Piceance Creek, and Uinta ment accumulation in the Uinta Basin, at Uinta Basin (47.1–45.2 Ma). This history is Basins of Wyoming, Colorado, and Utah Indian Canyon, Utah, was relatively con- likely related to progressive southward con- constrain ~8 m.y. of the Eocene Epoch. Mul- stant at ~150 mm/k.y. during deposition of struction of the Absaroka Volcanic Prov- tiple analyses were conducted per sample over 5 m.y. of both evaporative and fl uctuat- ince, which constituted a major topographic using laser fusion and incremental heating ing profundal facies, which likely refl ects the and thermal anomaly that contributed to a techniques to differentiate inheritance, 40Ar basin-margin position of the measured sec- regional north to south hydrologic gradient. loss, and 39Ar recoil.
    [Show full text]
  • Sedimentologic, Stable Isotopic, and Paleomagnetic Analysis of Laramide Synorogenic Strata: Unroofing of the Beartooth Range, Montana and Wyoming
    Western Washington University Western CEDAR WWU Graduate School Collection WWU Graduate and Undergraduate Scholarship 2012 Sedimentologic, stable isotopic, and paleomagnetic analysis of Laramide synorogenic strata: unroofing of the Beartooth Range, Montana and Wyoming Austin S. Hart Western Washington University Follow this and additional works at: https://cedar.wwu.edu/wwuet Part of the Geology Commons Recommended Citation Hart, Austin S., "Sedimentologic, stable isotopic, and paleomagnetic analysis of Laramide synorogenic strata: unroofing of the Beartooth Range, Montana and Wyoming" (2012). WWU Graduate School Collection. 203. https://cedar.wwu.edu/wwuet/203 This Masters Thesis is brought to you for free and open access by the WWU Graduate and Undergraduate Scholarship at Western CEDAR. It has been accepted for inclusion in WWU Graduate School Collection by an authorized administrator of Western CEDAR. For more information, please contact [email protected]. Sedimentologic, stable isotopic, and paleomagnetic analysis of Laramide synorogenic strata: unroofing of the Beartooth Range, Montana and Wyoming By Austin S. Hart Accepted in Partial Completion of the Requirements for Degree Master of Science Kathleen L. Kitto, Dean of the Graduate School ADVISORY COMMITTEE: Chair, Dr. Christopher A. Suczek Dr. Elizabeth R. Schermer Dr. Russell F. Burmester Master’s Thesis In presenting this thesis in partial fulfillment of the requirements for a master’s degree at Western Washington University, I grant to Western Washington University the non‐exclusive royalty‐free right to archive, reproduce, distribute, and display the thesis in any and all forms, including electronic format, via any digital library mechanisms maintained by WWU. I represent and warrant this is my original work, and does not infringe or violate any rights of others.
    [Show full text]
  • Appendix 1 – Environmental Predictor Data
    APPENDIX 1 – ENVIRONMENTAL PREDICTOR DATA CONTENTS Overview ..................................................................................................................................................................................... 2 Climate ......................................................................................................................................................................................... 2 Hydrology ................................................................................................................................................................................... 3 Land Use and Land Cover ..................................................................................................................................................... 3 Soils and Substrate .................................................................................................................................................................. 5 Topography .............................................................................................................................................................................. 10 References ................................................................................................................................................................................ 12 1 OVERVIEW A set of 94 potential predictor layers compiled to use in distribution modeling for the target taxa. Many of these layers derive from previous modeling work by WYNDD1, 2, but a
    [Show full text]
  • Sequence Stratigraphic Expression of Flexural Subsidence: Middle
    SEQUENCE STRATIGRAPHIC EXPRESSION OF FLEXURAL SUBSIDENCE: MIDDLE JURASSIC TWIN CREEK LIMESTONE, WYOMING, U.S.A. by BOLTON HOWES (Under the Direction of Steve Holland) ABSTRACT In southwestern Wyoming, the Bajocian to Callovian Twin Creek Limestone records the incipient deposition on a foreland basin in the Sundance Seaway. The sequence stratigraphy of the Twin Creek Limestone is described in the Wyoming Range of southwestern Wyoming, and the geometry of the foreland basin is described mathematically based on estimates flexural rigidity of the underlying crust and the subsidence caused by a thrust load in central Idaho. Four depositional sequences are described. These sequences are correlated to the Bighorn Basin based on existing biostratigraphic correlations and descriptions of the sequence stratigraphic architecture of Middle Jurassic strata in the Bighorn Basin. Modeling of the flexural subsidence of the foreland basin indicates that to account for the geometry of the foreland basin some form of long-wavelength subsidence must be superimposed on the flexural subsidence associated with the thrust load in central Idaho. INDEX WORDS: carbonate rocks; Jurassic; foreland basin; sequence stratigraphy SEQUENCE STRATIGRAPHIC EXPRESSION OF FLEXURAL SUBSIDENCE: MIDDLE JURASSIC TWIN CREEK LIMESTONE, WYOMING, U.S.A. By BOLTON HOWES B.A., Macalester College, 2015 A Thesis Submitted to the Graduate Faculty of The University of Georgia in Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE ATHENS, GEORGIA 2017 © 2017 Bolton Howes All Rights Reserved SEQUENCE STRATIGRAPHIC EXPRESSION OF FLEXURAL SUBSIDENCE: MIDDLE JURASSIC TWIN CREEK LIMESTONE, WYOMING, U.S.A. by BOLTON HOWES Major Professor: Steven M. Holland Committee: L. Bruce Railsback David S.
    [Show full text]
  • Earliest Jurassic U-Pb Ages from Carbonate Deposits in the Navajo Sandstone, Southeastern Utah, USA Judith Totman Parrish1*, E
    https://doi.org/10.1130/G46338.1 Manuscript received 3 April 2019 Revised manuscript received 10 July 2019 Manuscript accepted 11 August 2019 © 2019 The Authors. Gold Open Access: This paper is published under the terms of the CC-BY license. Published online 4 September 2019 Earliest Jurassic U-Pb ages from carbonate deposits in the Navajo Sandstone, southeastern Utah, USA Judith Totman Parrish1*, E. Troy Rasbury2, Marjorie A. Chan3 and Stephen T. Hasiotis4 1 Department of Geological Sciences, University of Idaho, P.O. Box 443022, Moscow, Idaho 83844, USA 2 Department of Geosciences, Stony Brook University, Stony Brook, New York 11794, USA 3 Department of Geology and Geophysics, University of Utah, 115 S 1460 E, Room 383, Salt Lake City, Utah 84112-0102, USA 4 Department of Geology, University of Kansas, 115 Lindley Hall, 1475 Jayhawk Boulevard, Lawrence, Kansas 66045-7594, USA ABSTRACT with the lower part of the Navajo Sandstone New uranium-lead (U-Pb) analyses of carbonate deposits in the Navajo Sandstone in across a broad region from southwestern Utah southeastern Utah (USA) yielded dates of 200.5 ± 1.5 Ma (earliest Jurassic, Hettangian Age) to northeastern Arizona (Blakey, 1989; Hassan and 195.0 ± 7.7 Ma (Early Jurassic, Sinemurian Age). These radioisotopic ages—the first re- et al., 2018). The Glen Canyon Group is under- ported from the Navajo erg and the oldest ages reported for this formation—are critical for lain by the Upper Triassic Chinle Formation, understanding Colorado Plateau stratigraphy because they demonstrate that initial Navajo which includes the Black Ledge sandstone (e.g., Sandstone deposition began just after the Triassic and that the base of the unit is strongly Blakey, 2008; Fig.
    [Show full text]
  • A Forgotten Collection of Vertebrate and Invertebrate Ichnofossils from the Nugget Sandstone (?Late Triassic-?Early Jurassic), Near Heber, Wasatch County, Utah
    181 Lockley, M.G. & Lucas, S.G., eds., 2014, Fossil footprints of western North America: NMMNHS Bulletin 62 A FORGOTTEN COLLECTION OF VERTEBRATE AND INVERTEBRATE ICHNOFOSSILS FROM THE NUGGET SANDSTONE (?LATE TRIASSIC-?EARLY JURASSIC), NEAR HEBER, WASATCH COUNTY, UTAH DANIEL J. CHURE1, THOMAS ROGER GOOD2 AND GEORGE F. ENGELMANN3 1Dinosaur National Monument, Box 128, Jensen UT 84035 U.S.A. [email protected]; 2Department of Geology and Geophysics, Frederick Albert Sutton Build- ing, University of Utah, 115 S 1460 East, Salt Lake City, UT 84112 U.S.A. [email protected]; 3Department of Geography and Geology, University of Nebraska, Omaha, NE 68182 U.S.A. [email protected]; Abstract—In the University of Utah Ichnology Collection we have located a small collection of ichnofossils from the Nugget Sandstone that was part of an unpublished Master’s thesis by Sheryl Albers. This historically significant collection, which was made from an active stone quarry, includes invertebrate and vertebrate traces, both as latex molds of specimens and actual fossils. These specimens allow a description of all the ichnofossils from the Heber quarry, based on both museum specimens and field photos of uncollected fossils. The ichnofauna is typical of late Paleozoic and Mesozoic eolian dune slipface paleoenvironrnents. Most of the vertebrate traces are referable to Brasilichnium, with the exception of three rare lacertoid trackways, one of which preserves excellent detail. Invertebrate trackways are referable to both Paleohelcura and Octopodichnus. A few Entradichnus burrows are present. The abundance of trace fossils and closely spaced invertebrate and vertebrate traces with parallel orientation and the same direction of travel on the same bedding surface is unusual in the Nugget Sandstone and suggests that further examination of the Nugget exposures in the Heber area might prove fruitful.
    [Show full text]
  • Fossil Sites and Paleopedology Abstract
    AN OVERVIEW OF THE TERRESTRIAL EARLY TERTIARY OF SOUTHERN NORTH AMERICA- FOSSIL SITES AND PALEOPEDOLOGY JUDITH A. SCHIEBOUT DEPARTMENT OF GEOLOGY LOUISIANA STATE UNIVERSITY ABSTRACT would have suggested. Evidently, neither Increasingly detailed stratigraphic work the slow-to-open North Atlantic nor the in intermontane basins from Montana to long distances were insurmountable bar­ Texas has revealed significant differences riers to many mammals before the end of between northern and southern early Ter­ the early Eocene. The Cretaceous interior tiary terrestrial faunas of western North seaway split North America and served as America. Paleontological data from south­ a barrier to migration between west and ern California, Mexico, New Mexico, and east Texas. The effects of this separation west Texas allows analysis of the effects of may have lingered throughout the Pale­ topography and climate on southern faunal ocene. distribution. Endemism in the Paleocene and Eocene of southern California and the INTRODUCTION Paleocene of west Texas can be attributed in part to geographic isolation. Observed Several recent developments make this differences between northern and south­ a good time to look both backwards and ern faunas are tied to climatic differences, forwards at the terrestrial Paleocene and which are traceable from locality to locali­ Eocene of southern North America. Are­ ty using paleopedology. For example, Pa­ vision of terrestrial Cenozoic chronology edited by M.O. Woodburne is in prepara­ leocene fluvial mudstones in west Texas and New Mexico show prominent red and tion and should be published within 1979 or 1980 (Woodburne, 1978, pers. comm.). black banding. Red layers are rich in soil­ Although many aspects of this summing up formed calcite nodules.
    [Show full text]
  • Status of Mineral Resource Information for the Wind River Indian Reservation, Wyoming
    STATUS OF MINERAL RESOURCE INFORMATION FOR THE WIND RIVER INDIAN RESERVATION, WYOMING David A. Seeland Earl F. Brauch S. Geological Survey U. S. Bureau of Mines Administrative report BIA-8 1975 CONTENTS SUMMARY AND CONCLUSIONS ................................................. 1 INTRODUCTION ................................................................ 2 ACKNOWLEDGMENTS .......................................................... 2 LAND STATUS ................................................................. 2 GEOLOGY ..................................................................... 2 Setting ................................................................... 2 Rock Units ................................................................ 3 Precambrian ......................................................... 3 Cambrian ........................................................... 4 Flathead Sandstone ............................................. 4 Gros Ventre Formation .......................................... 4 Gallatin Limestone.............................................. 4 Ordovician .......................................................... 4 Bighorn Dolomite .............................................. 4 Devonian ........................................................... 5 Darby Formation ............................................... 5 Mississippian ........................................................ 5 Madison Limestone ............................................. 5 Pennsylvanian ......................................................
    [Show full text]