DOCSLIB.ORG

Geology of the Fort Hill Quadrangle Lincoln County Wyoming

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Geology of the Fort Hill Quadrangle Lincoln County Wyoming Geology of the Fort Hill Quadrangle Lincoln County Wyoming I GEOLOGICAL SURVEY PROFESSIONAL PAPER 594-M - Geology of the Fort Hill Quadrangle Lincoln County Wyoming By STEVEN S. ORIEL SHORTER CONTRIBUTIONS TO GENERAL GEOLOGY GEOLOGICAL SURVEY PROFESSIONAL PAPER 594-M Surface and subsurface data of an area along the eastern margin of the Idaho-JI7joming thrust belt establish the geometry and times of movement of two ma;"or frontal thrust faults UNITED STATES GOVERNMENT PRINTING OFFICE. WASHINGTON 1969 UNITED STATES DEPARTMENT OF THE INTERIOR WALTER J. HICKEL, Secretary GEOLOGICAL SURVEY William T. Pecora, Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 CONTENTS Page Stratigraphy-Continued Page Abstract __________________________________________ _ M1 Cretaceous System_____________________________ - M10 Introduction ______________________________________ _ 1 Gannett Group ____________________________ _ 10 Purpose of report ______________________________ _ 2 Bear River Formation ______________________ _ 11 Previous work _________________________________ _ 2 Aspen Formation __________________________ _ 11 Present work and methods ______________________ _ 2 Frontier Formation ________________________ _ 11 Acknowledgments ______________________________ _ 3 Cretaceous rocks below the Hogsback fault ________ _ 12 Geography________________________________________ _ Gannett Group ____________________________ _ 3 12 Location ______________________________________ _ 3 Bear River and Aspen Formations or lDakota Landforms ____________________________________ _ 3 Sandstone and Mowry Shale ______________ _ 12 lDrainage _____________________________________ _ Frontier Formation ________________________ _ 5 13 Hilliard Shale _____________________________ _ Climate and vegetation _________________________ _ 5 13 Adaville(?) Formation ______________________ _ Settlement and accessibility _____________________ _ 5 14 Tertiary System _________________________ ------- Geographic names _____________________________ _ 6 14 Hoback(?) Formation ______________________ _ Stratigraphy ______________________________________ _ 6 14 Wasatch Formation ________________________ _ Cambrian System______________________________ _ 6 15 Green River Formation ____________________ _ Gros Ventre Formation _____________________ _ 6 19 Bridger Formation _________________________ _ Gallatin Limestone ________________________ _ 7 22 Ordovician System-Bighorn lDolomite ___________ _ Quaternary System-unconsolidated deposits_ . ____ _ 22 7 Structure _________________________________________ _ lDevonian and Mississippian Systems-lDarby For- 23 Hogsback thrust fault __________________________ _ mation _____________________________________ _ 7 23 Fort Hill thrust fault ___________________________ _ Mississippian System-Madison Limestone _______ _ 7 26 Meridian thrust fault __________________________ _ Mississippian and Pennsylvanian Systems-Amsden 28 Pine Ridge thrust fault_ ________________________ _ Formation __________________________________ _ 8 28 La Barge thrust fault __________________________ _ 28 Pennsylvanian and Permian Systems-Wells Forma- tion ________________________________________ _ Wyoming anticline_____________________________ _ 29 8 Meridian and other anticlines ___________________ _ 29 Permian System-Phosphoria Formation and equiv- Folds in Tertiary strata _____________________ - __ - 29 alent strata _________________________________ _ 8 Normal faults ____________________________ ------ 29 Triassic System ________________________________ _ 8 Reverse faults ________________________ -_-_------ 31 lDinwoody Formation _______________________ _ 8 Structure beneath La Barge fault_ _______________ _ 31 Woodside Formation _______________________ _ 9 Some tectonic implications ______________________ _ 31 Economic geology __________________________________ _ Thaynes Limestone ________________________ _ 9 32 Natural gas and oiL ___________________________ _ 32 Ankareh Formation _______________________ _ 9 Helium _______________________________________ _ 33 Triassic(?) and Jurassic(?) Systems-Nugget Sand- Oil shale _____________________________________ - _ 34 9 stone__ ~------------------------------------- Coal------------------------~----------------- 34 Jurassic System _______________________________ _ 10 Phosphate ____________________________________ _ 35 .Twin Creek Limestone _____________________ _ 10 Other resources ______________________________ --- 35 Preuss Redbeds ___________________________ _ 10 References cited ______________________________ ------ 35 Stump Sandstone __________________________ _ 10 Index ____________________________________________ _ 39 ILLUSTRATIONS Page PLATE 1. Geologic map of the Fort Hill quadrangle__________________________________________________________ _ In pocket 2. Geologic structure sections across the Fort Hill quadrangle ____________________________________ ------- In pocket FIGURE 1. Index map of southwestern Wyoming showing the location of the Fort Hill quadrangle __________________ _ M3 2. Map showing central part of thrust belt of western Wyoming, southeastern Idaho, and northeastern Utah __ 4 3. Idealized section of Wasatch and Green River Formations in the Fort Hill quadrangle __________________ _ 16 III IV CONTENTS FIGURES 4-19. Photographs: Page 4. Pisolites in limestone of the Chappo Member on La Barge Ridge_______________________________ M16 5. Angular unconformity in the Wasatch Formation between the La Barge Member and the underlying Chappo Member, south fork of Chappo Gulch___________________________________________ 16 6. Wasatch and Green River Formations on the east side of Green River at La Barge______________ 17 7. Pedestal formed by resistant conglomerate layers above less resistant red muddy siltstone of the La Barge Member of the Wasatch Formation____________________________________________ 18 8. A common type of expos·ure of the New Fork Tongue of the Wasatch Formation_________________ 18 9. Sandstone in theNew Fork Tongue of the Wasatch Formation containing loglike concretionary zones_ 18 10. Sequence of Wasatch and Green River stratigraphic units_____________________________________ 19 11. Cross bedded partly conglomeratic sandstone in the upper tongue of the Wasatch Formation_______ 20 12. Very poorly sorted conglomerate in the conglomerate member of the Wasatch Formation near Graphite Hollow ______________________ ---- ____ -______________________________________ 20 13. Type locality of Fontenelle Tongue of the Green River Formation_____________________________ 20 14. Steeply dipping thinly laminated light-gray muddy limestone in the Fontenelle Tongue of the Green River Formation_____________________________________________________________________ 21 15. Oil shale and volcanic ash in the lower part of the middle tongue of the Green River Formation____ 21 16. Pink,_ tan, gray, and white laminae of madstone, siltstone, sandstone, and limestone in the upper part of the middle tongue of the Green River Formation along Fontenelle Creek_____________ 22 17. Overlap of the La Barge Member of the Wasatch Formation by the Fontenelle Tongue of the Green River Formation_____________________________________________________________________ 22 18. Algal limestone mound in the upper tongue of the Green River Formation______________________ 23 19. Hogsback thrust fault unconformably overlain by the Chappo Member of the Wasatch Formation__ 24 20. Part of the gamma ray-sonic log for the Phillips Fort Hill 1A showing the repetition of the Darby Formation in the Fort Hill thrust plate_________________________________________________________ 27 21. Photographs showing steeply dipping normal faults in the quadrangle___________________________________ 30 22. Photograph showing site of Salli coal mine along Chappo Gulch________________________________________ 34 TABLE TABLE 1. Wells drilled for oil and gas in the Fort Hill quadrangle through mid-1966_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ M25 SHORTER CONTRIBUTIONS TO GENERAL GEOLOGY GEOLOGY OF THE FORT HILL QUADRANGLE, LINCOLN COUNTY, WYOMING By STEVEN s. ORIEL ABSTRACT have been especially productive. Many more such stratigraphic The Fort Hill quadrangle lies along the b<>undary between traps are likely to be found in Cretaceous, Tertiary, and possibly the Idaho-Wyoming thrust belt and the Green River Basin. A also in Paleozoic rock units within the region. sequence of Paleozoic and Mesozoic sedimentary rocks about Other natural resources of the area include helium, oil shale, 21:l,OOO feet thick has been intensely deformed along the front coal, and phosphate. of the thrust-belt mountain system. Only Cambrian to Ordo­ vician and Triassic to Cretaceous rock units are exposed now INTRODUCTION within the quadrangle. Middle and upper Paleozoic rocks are covered by partly deformed, but well exposed, Tertiary strata Exposed rocks along the western margin of the Green that help date some of the tectonic events. River Basin have received comparatively little atten­ Drilling within the quadrangle has provided data which help tion from geologists since the extensive reconnaissance outline the third dimension of structures map~. Westerly studies by the U.S. Geological Survey very early in this dipping lower Paleozoic to Mesozoic units overrode gently folded century. Yet study of these rocks and of data from qretaceous rocks eastward along the Hogsback fault in ~aleocene time; all movement
Load more

Recommended publications
  • From the Western of the United
    from the Western of the United GEOLOGICAL SURVEY P R® BES&lON AL PAPER 1057 Early Triassic Terebratulid Brachiopods from the Western Interior of the United States By PETER R. HOOVER GEOLOGICAL SURVEY PROFESSIONAL PAPER 1057 Description and illustration offive species of terebratulid brachiopods, and discussion of their distribution and developmental and evolutionary history UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1979 UNITED STATES DEPARTMENT OF THE INTERIOR CECIL D. ANDRUS, Secretary GEOLOGICAL SURVEY H. William Menard, Director Library of Congress Cataloging in Publication Data Hoover, Peter R. Early Triassic Terebratulid Brachiopods from the Western Interior of the United States (Geological Survey Professional Paper 1057) Bibliography: p. 19 Includes index Supt. of Docs. No.: I 19:16:1057 1. Terebratulida, Fossil. 2. Paleontology Triassic. 3. Paleontology The West. I. Title. II. Series: United States Geological Survey Professional Paper 1057 QE797.T29H66 564'.8 77-608314 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 Stock Number 024-001-03182-5 CONTENTS Page Page Systematic paleontology Continued Abstract ....................... 1 Family Dielasmatidae Continued Introduction .................... 1 Subfamily Dielasmatinae. Previous work................ 1 Rhaetina Waagen ..... Present study ................ 3 Family Terebratulidae ......... 9 Acknowledgments ............ 3 Subfamily Plectoconchiinae. 9 Fossil localities cited in this report. .... 3 Vex, n. gen. ......... 9 Stratigraphic setting of the brachiopods 4 Family Cryptonellidae ......... 11 Faunal relationships. .............. 6 Subfamily Cryptacanthiinae . 11 Biostratigraphic implications........ 6 Obnixia, n. gen. ...... 11 Systematic paleontology............ 7 Family Zeilleriidae ............ 17 Family Dielasmatidae.......... 7 Periallus, n. gen. ......... 17 Subfamily Zugmayeriinae . 7 References cited. ................. 19 Portneufia, n. gen. .... 7 Index ......................... 21 ILLUSTRATIONS [Plates follow index] PLATE 1.
    [Show full text]
  • A Revised Taxonomy of the Iguanodont Dinosaur Genera and Species
    ARTICLE IN PRESS + MODEL Cretaceous Research xx (2007) 1e25 www.elsevier.com/locate/CretRes A revised taxonomy of the iguanodont dinosaur genera and species Gregory S. Paul 3109 North Calvert Station, Side Apartment, Baltimore, MD 21218-3807, USA Received 20 April 2006; accepted in revised form 27 April 2007 Abstract Criteria for designating dinosaur genera are inconsistent; some very similar species are highly split at the generic level, other anatomically disparate species are united at the same rank. Since the mid-1800s the classic genus Iguanodon has become a taxonomic grab-bag containing species spanning most of the Early Cretaceous of the northern hemisphere. Recently the genus was radically redesignated when the type was shifted from nondiagnostic English Valanginian teeth to a complete skull and skeleton of the heavily built, semi-quadrupedal I. bernissartensis from much younger Belgian sediments, even though the latter is very different in form from the gracile skeletal remains described by Mantell. Currently, iguanodont remains from Europe are usually assigned to either robust I. bernissartensis or gracile I. atherfieldensis, regardless of lo- cation or stage. A stratigraphic analysis is combined with a character census that shows the European iguanodonts are markedly more morpho- logically divergent than other dinosaur genera, and some appear phylogenetically more derived than others. Two new genera and a new species have been or are named for the gracile iguanodonts of the Wealden Supergroup; strongly bipedal Mantellisaurus atherfieldensis Paul (2006. Turning the old into the new: a separate genus for the gracile iguanodont from the Wealden of England. In: Carpenter, K. (Ed.), Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs.
    [Show full text]
  • The Geologic History of Fossil Butte National Monument and Fossil Basin
    The Geologic History of Fossil Butte National Monument and Fossil Basin FOSSIL BUTTE The Geologic History of Fossil Butte National Monument and Fossil Basin NPS Occasional Paper No. 3 THE GEOLOGIC HISTORY OF FOSSIL BUTTE NATIONAL MONUMENT AND FOSSIL BASIN Paul O. McGrew Michael Casilliano Department of Geology, University of Wyoming National Park Service Occasional Paper Number Three 1975 TABLE OF CONTENTS index.htm Last Updated: 01-Mar-2005 http://www.nps.gov/history/history/online_books/fobu/index.htm[6/17/2013 12:42:49 PM] The Geologic History of Fossil Butte National Monument and Fossil Basin (Tables of Contents) FOSSIL BUTTE The Geologic History of Fossil Butte National Monument and Fossil Basin NPS Occasional Paper No. 3 CONTENTS COVER INTRODUCTION LOCATION HISTORICAL BACKGROUND OF RESEARCH STRATIGRAPHY Thaynes Limestone Evanston Formation Wasatch Formation Basal Conglomerate Member Lower Member Main Body Sandstone Tongue Mudstone Tongue Bullpen Member Tunp Member Age of the Wasatch Formation Depositional Environment Green River Formation Fossil Butte Member Angelo Member Age of the Green River Formation Depositional Environment Fowkes Formation Sillem Member Bulldog Hollow Member Gooseberry Member Age of the Fowkes Formation Depositional Environment QUATERNARY THE GEOLOGIC STRUCTURE OF FOSSIL BASIN PALEONTOLOGY Flora Invertebrates http://www.nps.gov/history/history/online_books/fobu/contents.htm[6/17/2013 12:42:58 PM] The Geologic History of Fossil Butte National Monument and Fossil Basin (Tables of Contents) Vertebrates Fish Amphibians Reptiles Birds Mammals PALEOECOLOGY AND TAPHONOMY ACKNOWLEDGMENTS GLOSSARY REFERENCES BIBLIOGRAPHY Library of Congress Cataloging in Publication Data McGrew, Paul Orman, 1909- The geological history of Fossil Butte National Monument and Fossil Basin.
    [Show full text]
  • Phylogeny and Biogeography of Iguanodontian Dinosaurs, with Implications from Ontogeny and an Examination of the Function of the Fused Carpal-Digit I Complex
    Phylogeny and Biogeography of Iguanodontian Dinosaurs, with Implications from Ontogeny and an Examination of the Function of the Fused Carpal-Digit I Complex By Karen E. Poole B.A. in Geology, May 2004, University of Pennsylvania M.A. in Earth and Planetary Sciences, August 2008, Washington University in St. Louis A Dissertation submitted to The Faculty of The Columbian College of Arts and Sciences of The George Washington University in partial fulfillment of the requirements for the degree of Doctor of Philosophy August 31, 2015 Dissertation Directed by Catherine Forster Professor of Biology The Columbian College of Arts and Sciences of The George Washington University certifies that Karen Poole has passed the Final Examination for the degree of Doctor of Philosophy as of August 10th, 2015. This is the final and approved form of the dissertation. Phylogeny and Biogeography of Iguanodontian Dinosaurs, with Implications from Ontogeny and an Examination of the Function of the Fused Carpal-Digit I Complex Karen E. Poole Dissertation Research Committee: Catherine A. Forster, Professor of Biology, Dissertation Director James M. Clark, Ronald Weintraub Professor of Biology, Committee Member R. Alexander Pyron, Robert F. Griggs Assistant Professor of Biology, Committee Member ii © Copyright 2015 by Karen Poole All rights reserved iii Dedication To Joseph Theis, for his unending support, and for always reminding me what matters most in life. To my parents, who have always encouraged me to pursue my dreams, even those they didn’t understand. iv Acknowledgements First, a heartfelt thank you is due to my advisor, Cathy Forster, for giving me free reign in this dissertation, but always providing valuable commentary on any piece of writing I sent her, no matter how messy.
    [Show full text]
  • Stratigraphy of Inyan Kara Group and Localization of Uranium Deposits
    Stratigraphy of the Inyan Kara Group and Localization of Uranium Deposits, Southern Black Hills, South Dakota and Wyoming GEOLOGICAL SURVEY PROFESSIONAL PAPER 763 Prepared on behalf of the U.S. Atomic Energy Commission Stratigraphy of the Inyan Kara Group and Localization of Uranium Deposits, Southern Black Hills, South Dakota and Wyoming By GARLAND B. GOTT, DON E. WOLCOTT, and C. GILBERT BOWLES GEOLOGICAL SURVEY PROFESSIONAL PAPER 763 Prepared on behalf of the U.S. Atomic Energy Commission UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1974 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary GEOLOGICAL SURVEY V. E. McKelvey, Director Library of Congress catalog-card No. 73-600275 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 Price $5.10 (paper cover) Stock No. 2401-02500 CONTENTS Page Page Abstract..................................................................................... 1 Structure Continued Introduction.............................................................................. 2 Structural interpretation................................................ 29 Stratigraphy of the Inyan Kara Group............................... 3 Precambrian structure............................................ 29 Lakota Formation............................................................ 3 Recurrent deformation............................................ 30 Chilson Member........................................................ 5 Deformational forces...............
    [Show full text]
  • A New Species of Baenid Turtle from the Early Cretaceous Lakota Formation of South Dakota
    Foss. Rec., 23, 1–13, 2020 https://doi.org/10.5194/fr-23-1-2020 © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License. A new species of baenid turtle from the Early Cretaceous Lakota Formation of South Dakota Walter G. Joyce1, Yann Rollot1, and Richard L. Cifelli2 1Department of Geosciences, University of Fribourg, 1700 Fribourg, Switzerland 2Oklahoma Museum of Natural History, Norman, OK 73072, USA Correspondence: Walter G. Joyce ([email protected]) Received: 27 September 2019 – Revised: 6 January 2020 – Accepted: 22 January 2020 – Published: 12 February 2020 Abstract. Baenidae is a clade of paracryptodiran turtles (e.g., Lyson et al., 2011, 2019). Only little is known, by con- known from the late Early Cretaceous to Eocene of North trast, about the early evolution of the group, mostly due to America. The proposed sister-group relationship of Baenidae a lack of fossils. At present, only three unambiguous baenid to Pleurosternidae, a group of turtles known from sediments fossils are known from the Early Cretaceous, in particular dated as early as the Late Jurassic, suggests a ghost lin- the holotype specimens of Arundelemys dardeni Lipka et eage that crosses the early Early Cretaceous. We here doc- al., 2006, Trinitichelys hiatti Gaffney, 1972, and Protobaena ument a new species of paracryptodiran turtle, Lakotemys wyomingensis (Gilmore, 1919) from the Aptian–Albian of australodakotensis gen. and sp. nov., from the Early Creta- Maryland, Texas, and Wyoming, respectively. A broad set of ceous (Berriasian to Valanginian) Lakota Formation of South mostly unfigured fragmentary remains from the Early Creta- Dakota based on a poorly preserved skull and two partial ceous of Nevada (Bonde et al., 2008), Montana (Oreska et al., shells.
    [Show full text]
  • The Professional Geologist Jan.Feb.Mar 2016
    Volume 53, Number 1 THE PROFESSIONAL GEOLOGIST Jan.Feb.Mar 2016 TPG Volume 53 Number 1 Jan.Feb.Mar 2016 INSIDE THIS STUDENT ISSUE DEPARTMENTS FEATURES 6 Students in Action INTRAW Project Michael Lawless, CPG-09224 3 25/26 Student Chapters Field Camp in Ireland-International Studies 27 Editor’s Corner Jessica Davey, SA-4424 4 28 Test Your Knowledge The Best Geologist is the One Who Has Seen the Most Rocks Allison Richards, SA-5323 5 29 President’s Message Sailing the Seven C’s of Loss Prevention 30 Test Your Knowledge Answers Lawrence C. Weber, CPG-7120 8 31 Professional Ethics and Practices Undergraduate Education Beyond the Classes: The Importance of Research Experience 34 In Memory Brittany Kime, SA-3259 9 Your Senior Year Starts When You Enter College 35 Hydrothink Diane Burns, MEM-2471 10 35 Membership Totals Do You Have a Mentor? William J. Elliott, CPG-04194 12 36 Educator’s Page The Silver Market in 2014 40 Letter to the Editor Jim Burnell, CPG-11609 12 41 Student’s Voice The Success of Your Project Determines Your Future Oludamilola Alalade 13 42 Student’s Voice Two-and Three-Dimensional Finite Element Groundwater 43 Letter to the Editor Flow Models with Isothermal Freezing and Thawing H.D. McInvale, T.V. Hromadka II, M. Phillips, and B. Landry 14 44 Professional Services Directory Predicting Thaw Degradation in Algid Climates along Highway 46 Online Courses Embankments using a Boundary Element Method A.N. Johnson, T.V. Hromadka II, M. Phillips, and J. Williams 16 Development of a Multifunction Best Fit Computer Program to Model Sediment Transport Data in Rivers Bisti/De-Na-Zin Wilderness located in San Juan T.V.
    [Show full text]
  • Insight on the Anatomy, Systematic Relationships, and Age of the Early Cretaceous Ankylopollexian Dinosaur Dakotadon Lakotaensis Clint A
    Insight on the anatomy, systematic relationships, and age of the Early Cretaceous ankylopollexian dinosaur Dakotadon lakotaensis Clint A. Boyd1 and Darrin C. Pagnac2 1 North Dakota Geological Survey, Bismarck, North Dakota, USA 2 Department of Geology and Geological Engineering, South Dakota School of Mines and Technology, Rapid City, South Dakota, USA ABSTRACT Knowledge regarding the early evolution within the dinosaurian clade Ankylopollexia drastically increased over the past two decades, in part because of an increase in described taxa from the Early Cretaceous of North America. These advances motivated the recent completion of extensive preparation and conservation work on the holotype and only known specimen of Dakotadon lakotaensis, a basal ankylopollexian from the Lakota Formation of South Dakota. That specimen (SDSM 8656) preserves a partial skull, lower jaws, a single dorsal vertebra, and two caudal vertebrae. That new preparation work exposed several bones not included in the original description and revealed that other bones were previously misidentified. The presence of extensive deformation in areas of the skull is also noted that influenced inaccuracies in prior descriptions and reconstructions of this taxon. In addition to providing an extensive re-description of D. lakotaensis, this study reviews previously proposed diagnoses for this taxon, identifies two autapomorphies, and provides an extensive diVerential diagnosis. Dakotadon lakotaensis is distinct from the only other ankylopollexian taxon known from the Lakota Formation, Osmakasaurus depressus, in the presence of two prominent, anteroposteriorly oriented ridges on the ventral surfaces of the caudal vertebrae, the only overlapping material preserved Submitted 28 May 2015 Accepted 3 September 2015 between these taxa. The systematic relationships of D.
    [Show full text]
  • Synoptic Taxonomy of Major Fossil Groups
    APPENDIX Synoptic Taxonomy of Major Fossil Groups Important fossil taxa are listed down to the lowest practical taxonomic level; in most cases, this will be the ordinal or subordinallevel. Abbreviated stratigraphic units in parentheses (e.g., UCamb-Ree) indicate maximum range known for the group; units followed by question marks are isolated occurrences followed generally by an interval with no known representatives. Taxa with ranges to "Ree" are extant. Data are extracted principally from Harland et al. (1967), Moore et al. (1956 et seq.), Sepkoski (1982), Romer (1966), Colbert (1980), Moy-Thomas and Miles (1971), Taylor (1981), and Brasier (1980). KINGDOM MONERA Class Ciliata (cont.) Order Spirotrichia (Tintinnida) (UOrd-Rec) DIVISION CYANOPHYTA ?Class [mertae sedis Order Chitinozoa (Proterozoic?, LOrd-UDev) Class Cyanophyceae Class Actinopoda Order Chroococcales (Archean-Rec) Subclass Radiolaria Order Nostocales (Archean-Ree) Order Polycystina Order Spongiostromales (Archean-Ree) Suborder Spumellaria (MCamb-Rec) Order Stigonematales (LDev-Rec) Suborder Nasselaria (Dev-Ree) Three minor orders KINGDOM ANIMALIA KINGDOM PROTISTA PHYLUM PORIFERA PHYLUM PROTOZOA Class Hexactinellida Order Amphidiscophora (Miss-Ree) Class Rhizopodea Order Hexactinosida (MTrias-Rec) Order Foraminiferida* Order Lyssacinosida (LCamb-Rec) Suborder Allogromiina (UCamb-Ree) Order Lychniscosida (UTrias-Rec) Suborder Textulariina (LCamb-Ree) Class Demospongia Suborder Fusulinina (Ord-Perm) Order Monaxonida (MCamb-Ree) Suborder Miliolina (Sil-Ree) Order Lithistida
    [Show full text]
  • Chapter 2 Study Area
    Chapter 2 Study area Keith Clarey Melissa Thompson 2-1 he Greater Green River Basin (GGRB) forest and alpine tundra on the higher mountains. includes the Green River Basin, the Great At lower elevations in the basin, the vegetation in- Divide Basin, and the Little Snake River cludes abundant sagebrush, saltbush, greasewood, TBasin (Figure 1-1). The project boundary is deter- and desert shrub. Forested areas contain lodgepole mined by the distal river drainage basin divides. pine, spruce, fir, and aspen. The drainage basin boundaries overlap several geo- logic features within the GGRB. The continental GEOLOGIC SETTING: STRUCTURE divide marks the northern and eastern boundaries The GGRB is bounded by the Overthrust Belt to of the GGRB; it bifurcates and reconverges around the west, the Hoback Basin to the northwest, the the Great Divide Basin (Figure 1-1). Figure 2-1 Wind River Range and Granite Mountains to the shows the townships and ranges in the GGRB. north, the Rawlins Uplift to the east, the Sierra Madre to the east-southeast, the southern Sand The Wyoming portion of the GGRB, as delineated Wash Basin in Colorado to the south-southeast, using GIS databases, has an area of 20,792 square and the Uinta Mountains in Utah to the south. miles (13,306,700 acres). The Wyoming GGRB Within the GGRB, the Rock Springs Uplift and covers 21.3 percent of the area of the state. The Bridger Basin are located in the Green River Basin adjacent 3,821 square miles (2,445,900 acres) of proper; the Wamsutter Arch separates the Great the Colorado and Utah GGRB added to the Wyo- Divide Basin from the Washakie Basin; and Chero- ming GGRB area gives a total basin area of 24,613 kee Ridge separates the Washakie Basin from the square miles (15,752,500 acres) (Figures 1-1 and Sand Wash Basin (Figure 2-2).
    [Show full text]
  • 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.
    [Show full text]
  • THE LOWER CRETACEOUS in EAST-CENTRAL UTAH—THE CEDAR MOUNTAIN FORMATION and ITS BOUNDING STRATA James I
    GEOLOGY OF THE INTERMOUNTAIN WEST an open-access journal of the Utah Geological Association Volume 3 2016 THE LOWER CRETACEOUS IN EAST-CENTRAL UTAH—THE CEDAR MOUNTAIN FORMATION AND ITS BOUNDING STRATA James I. Kirkland, Marina Suarez, Celina Suarez, and ReBecca Hunt-Foster A Field Guide Prepared For SOCIETY OF VERTEBRATE PALEONTOLOGY Annual Meeting, October 26 – 29, 2016 Grand America Hotel Salt Lake City, Utah, USA Pre-Meeting Field Trip October 23–25, 2016 © 2016 Utah Geological Association. All rights reserved. For permission to copy and distribute, see the following page or visit the UGA website at www.utahgeology.org for information. Email inquiries to [email protected]. GEOLOGY OF THE INTERMOUNTAIN WEST an open-access journal of the Utah Geological Association Volume 3 2016 Editors UGA Board Douglas A. Sprinkel Thomas C. Chidsey, Jr. 2016 President Bill Loughlin [email protected] 435.649.4005 Utah Geological Survey Utah Geological Survey 2016 President-Elect Paul Inkenbrandt [email protected] 801.537.3361 801.391.1977 801.537.3364 2016 Program Chair Andrew Rupke [email protected] 801.537.3366 [email protected] [email protected] 2016 Treasurer Robert Ressetar [email protected] 801.949.3312 2016 Secretary Tom Nicolaysen [email protected] 801.538.5360 Bart J. Kowallis Steven Schamel 2016 Past-President Jason Blake [email protected] 435.658.3423 Brigham Young University GeoX Consulting, Inc. 801.422.2467 801.583-1146 UGA Committees [email protected] [email protected] Education/Scholarship Loren Morton
    [Show full text]