DOCSLIB.ORG

Redacted for Privacy Dr/Keith F.Ole S

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Redacted for Privacy Dr/Keith F.Ole S AN ABSTRACT OF THE THESIS OF DONALD ALBERT HARTMAN for the MASTER OF SCIENCE (Name of student) (Degree) in GEOLOGY presented onMc (Major) (Date) Title: STRATIGRAPHY AND STRUCTURE OF THE SALT WELLS ANTICLINE AREA, SWEETWATER COUNTY, WYOMING Abstract approved: Redacted for Privacy Dr/Keith F.Ole s Approximately 4,210 feet of Late Cretaceous and 1,440 feet of Tertiary sedimentary rocks are exposed in the Salt Wells Anticliné area of southcentral Sweetwater County, Wyoming. Late Cretaceous units include the Blair, Rock Springs, Ericson, and Almond Forma- tions of the Mesaverde Group and the Lewis Shale; Tertiary units in- dude the Paleocene Fort Union and the Eocene Wasatch Formations, and the Oligocene or Miocene Bishop Conglomerate. Alluvium, ter- race gravels, and landslide debris are the most extensiveQuaternary deposits. The Late Cretaceous rocks of the Rock Springs Uplift exhibit intricate intertonguing of marine and nonmarine facies, and they re- cord the eastward regression of the Late Cretaceous sea.Inter- tonguing of environments in the region resulted from 1) deposition in a subsiding basin of detritus episodically shed from Laramide source areas to the west and northwest, and 2) periodic pulses of basin subsidence. Rocks of the Blair and Rock Springs Formations record marine depositional environments. Regressive littoral sandstones are found at the base and top of the Blair Formation and at the top of the Rock Springs Formation. Eastward encroachment of fluviatile deposits is marked by deposition of the Ericson and lower Almond Formations. Northerly coarsening of sandstones and southeasterly current direc- tions in the Ericson indicate that the Wind River Mountains area was one probable source area. A second, more westerly source area is indicated by conglomerate lenses and easterly current directions in the upper Ericson Formation and by the thick sequence of continental deposits in the lower Almond Formation. Return of marine condi- tions is recorded by the transgressive marine deposits of the upper Almond Formation and the offshore marine shales and mudstones of the Lewis Shale.The latest Cretaceous rocks exposed on the Uplift record the final regression of the Cretaceous sea.The Cretaceous period ended with uplift of the Rock Springs area. The continental deposits of the Paleocene Fort Union Forma- tion were deposited unconformably along the flanks of the Uplift; in turn, this formation is conformably overlain by the fluviatile red bed deposits of the Eocene Wasatch Formation. Contemporaneously with the deformation of the Uinta Mountains, the Salt Wells folds were superimposed on the southern part of the Uplift.During Oligocene or Miocene the Uplift was truncated by the Gilbert Peak pediment surface.Quaternary fluvial erosion has deeply dissected the Rock Springs Uplift. Stratigraphy and Structure of the Salt Wells Anticline Area, Sweetwater County, Wyoming by Donald Albert Hartman A THESIS submitted to Oregon State University in partial fulfillment of the requirements for the degree of Master of Science June1968 APPROVED: Redacted for Privacy AssociatProfessor 6f Geology in charge of major Redacted for Privacy Chairman of the Department ofeology Redacted for Privacy Dean of Graduate School Date thesis is presentedM Typed by Donna Olson for Donald Albert Hartman ACKNOWLEDGMENTS The writer wishes to express his appreciation to Dr. K. F. Oles, his major professor, for suggesting the thesis problem and editing the manuscript.Drs. K. F. Oles and P. T. Robinson visited the area, and Drs. H. E. Enlows and L. D. KuIm critically read the manuscript; their helpful suggestions are very much appreciated.Sincere appreciation is extended to the Department of Geology at Oregon State University. The Union Oil Company of California provided financial assist- ance for work on the thesis problem. Specialthanks are due to Messrs. G. H. Feister, L. Brown, and J. P. Gillum of Union Oil Company who visited the thesis area and provided materials from their files.Union Pacific Railroad Company and Mountain Fuel Supply Company provided additional information of the region. The writer is particularly grateful to his wife, Ann, who assisted him in the field and in preparation of the manuscript. TABLE OF CONTENTS Page INTRODUCTION 1 Location and Accessibility 1 Previous Work 1 Purpose, Scope and Methods 3 Topography and Drainage 4 Climate and Vegetation 5 REGIONAL SETTING 8 STRATIGRAPHY 12 Subsurface Stratigraphy 12 Thesis Area Stratigraphy 14 Blair Formation 15 Distribution and Occurrence 17 Lithology and Thickness 18 Middle Shale Member 19 Chimney Rock Sandstone 20 Age and Correlation 22 Depositional Conditions 23 Rock Springs Formation 24 Distribution and Occurrence 25 Lithology and Thickness 26 Black Butte Tongue 28 Brooks Sandstone 30 Coulson Tongue 32 McCourt Sandstone 33 Age and Correlation 36 Depositional Conditions 37 Ericson Formation 38 Distribution and Occurrence 41 Lithology and Thickness 42 "Transition" Zone and "Rusty" Zone 44 Trail and Canyon Creek Members 45 Directional Characteristics of Ericson Cross-bedding 46 Petrography 51 Age and Correlation 57 Depositional Conditions 57 Almond Formation 61 Page Distribution andOccurrence 62 Lithology and Thickness 63 AlluvialMember 64 TransitionalMarine Member 65 Age and Correlation 68 DepositionalConditions 69 Lewis Shale 71 Distribution and Occurrence 72 Lithology andThickness 72 Age and Correlation 74 Depositional Conditions 75 Fort Union Formation 75 Distribution andOccurrence 76 Character and Thickness 77 Age and Correlation 79 DepositionalConditions 80 Wasatch Formation 81 Distribution and Occurrence 81 Character and Thickness 82 Age and Correlation 83 Depositional Conditions 83 Bishop Conglomerate 84 DistributionandOccurrence 84 Character andThickness 85 Age and Correlation 87 Depositional Conditions 88 Quaternary Deposits 89 Terrace Gravels 89 Landslide Debris 90 Alluvium 90 STRUCTURAL GEOLOGY 92 Folding 92 Faulting 93 Jointing 93 Deformational History 95 GEOLOGIC HISTORY 97 Page ECONOMIC GEOLOGY 104 Petroleum 104 Coal 106 Sand and Gravel 106 BIBLIOGRAPHY 109 LIST OF FIGURES Figure Page 1. Breached axial area of the Rock Springs Uplift. 6 2. West-facing cuesta along the east flank of the Rock Springs Uplift. 6 3. View south to Chimney Rock. 19 4. Strike valley of the Black Butte Tongue. 27 5. Brooks and McCourt Sandstones are the basal resistant units of the "White Wall". 27 6. The Brooks Sandstone. 34 7. The McCourt Sandstone. 34 8. View north to the type section of the Eric son Formation. 39 9. The "rusty" zone. 43 10. The dip slope of the Ericson Formation. 43 11. Current directions of the Trail Member. 48 12. Current directions of the Canyon Creek Member. 50 13. Classification of Ericson sandstones. 52 14. The contact between Ericson and Almond Formations. 62 15. Barrier island sandstone in the transitional marine member of the Almond Formation. 70 16. Regolith at the base of the Fort Union Formation. 73 17. The Gilbert Peak pediment surface. 86 18. The contact between Bishop Conglomerate and Ericson Formation. 86 Page 19. Thrust fault along the south flank of Salt Wells Anticline. 94 20. Jointing on the dip slope of the Chimney Rock Sandstone. 94 21. Diagrammatic section of the Late Cretaceous Mesaverde Group in the Salt Wells Anticline area. 98 LIST OF PLATES Plate Page 1. Map of Wyoming showing the location of the Salt Wells Anticline area. 2 2. Major structural features of southwestern Wyoming. 9 3. Geologic map of the Salt Wells Anticline area, Sweetwater County, Wyoming. 108 LIST OF TABLES Table 1. Subsurface section of the Salt Wells Anticline area. 13 2. Stratigraphic section of the Salt Wells Anticline area. 16 3. Modal analyses of a sandstone from the middle of the Chimney Rock Sandstone of the Blair Formation. 22 4. Modal analyses of sandstones of the upper Rock Springs Formation. 32 5. Modal analyses of sandstones of the Trail and Canyon Creek Members. 54 6. Modal analyses of sandstones of the "transition" and "rusty" zones. 56 STRATIGRAPHY AND STRUCTURE OF THE SALT WELLS ANTICLINE AREA, SWEETWATER COUNTY, WYOMING INTRODUCTION Location and Accessibility The Salt Wells Anticline area includes 112 square miles in parts of T. 14, 15 and 16 N. ,R. 102, 103, and 104 W. ,in south- central Sweetwater County, Wyoming (Plate 1).This area lies on the southeastern flank of the Rock Springs Uplift approximately25 miles southeast of Rock Springs, Wyoming. Wyoming State Highway 430 provides access to the area from Rock Springs.In addition there are five county roads in the area including the main road to Clay Basin. Numerous farm roads, jeep trails, seismic lines, and pipe lines are passable by jeep and contri- bute to the accessibility of the area. Previous Work Hayden (1872, 1873), Powell (1876) and King (1878) presented early descriptions of the Cretaceous and Tertiary sequences of the Rock Springs Uplift.Schultz (1907, 1908) in his evaluations of the coal resources of the region, described the structure of the Uplift and established the basic stratigraphic units.Schultz (1920) and Sears (1926) mapped the geology of the southern part of the Uplift and OUTH.KOTA IDAH( BRASKA Plate 1.Map of Wyoming showing location of the SaltWells Anticline area. 3 evaluated the petroleum possibilities and discoveries in and about South Baxter Basin. The first regional study of Cretaceous rocks of the Rock Springs Uplift was made by Hale (1950, 1955) who described the lithologies of the various formations and presented their facies rela- tions.Smith (1961, 1965)in more recent studies,
Load more

Recommended publications
  • Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1973
    Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1973 GEOLOGICAL SURVEY BULLETIN 1395-A NOV1419/5 5 81 Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1973 By GEORGE V. COHEE and WILNA R. WRIGHT CONTRIBUTIONS TO STRATIGRAPHY GEOLOGICAL SURVEY BULLETIN 1395-A UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1975 66 01-141-00 oM UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary GEOLOGICAL SURVEY V. E. McKelvey, Director Library of Congress Cataloging in Publication Data Cohee, George Vincent, 1907 Changes in stratigraphic nomenclatures by the U. S. Geological Survey, 1973. (Contributions to stratigraphy) (Geological Survey bulletin; 1395-A) Supt. of Docs, no.: I 19.3:1395-A 1. Geology, Stratigraphic Nomenclature United States. I. Wright, Wilna B., joint author. II. Title. III. Series. IV. Series: United States. Geological Survey. Bulletin; 1395-A. QE75.B9 no. 1395-A [QE645] 557.3'08s 74-31466 [551.7'001'4] For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, B.C. 20402 Price 95 cents (paper cover) Stock Number 2401-02593 CONTENTS Page Listing of nomenclatural changes ______ _ Al Beulah Limestone and Hardscrabble Limestone (Mississippian) of Colorado abandoned, by Glenn R. Scott _________________ 48 New and revised stratigraphic names in the western Sacramento Valley, Calif., by John D. Sims and Andre M. Sarna-Wojcicki __ 50 Proposal of the name Orangeburg Group for outcropping beds of Eocene age in Orangeburg County and vicinity, South Carolina, by George E. Siple and William K. Pooser _________________ 55 Abandonment of the term Beattyville Shale Member (of the Lee Formation), by Gordon W.
    [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]
  • Triassic-Jurassic 'Red Beds' of the Rocky Mountain Region": a Discussion
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln USGS Staff -- Published Research US Geological Survey 1929 "Triassic-Jurassic 'Red Beds' of the Rocky Mountain Region": A Discussion John B. Reeside Jr. U.S. Geological Survey Follow this and additional works at: https://digitalcommons.unl.edu/usgsstaffpub Part of the Earth Sciences Commons Reeside, John B. Jr., ""Triassic-Jurassic 'Red Beds' of the Rocky Mountain Region": A Discussion" (1929). USGS Staff -- Published Research. 498. https://digitalcommons.unl.edu/usgsstaffpub/498 This Article is brought to you for free and open access by the US Geological Survey at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in USGS Staff -- Published Research by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. The Journal of Geology, Vol. 37, No. 1 (Jan. - Feb., 1929), pp. 47-63 "TRIASSIC-JURASSIC 'RED BEDS' OF THE ROCKY MOUNTAIN REGION": A DISCUSSION' JOHN B. REESIDE, JR. U.S. Geological Survey ABSTRACT The conclusion drawn by Professor E. B. Branson in a recent paper on the "Red Beds" of the Rocky Mountain region that parts of these beds are marine is considered likely. The conclusion that there exists no basis for subdivision of the beds is not accepted, and a division of the Mesozoic part into Lower Triassic, Upper Triassic, and Jurassic units is advocated. The conclusion that no eolian deposits are present likewise is not accepted, and the interpretation of important parts of the Jurassic unit as eolian is advocated. Disagreement is expressed with much of Professor Branson's correlation table, and a substitute is offered.
    [Show full text]
  • Plate U. Relation of Lithostratigraphic Units to Hydrogeologic Units, Hanna and Laramie Basins
    Hydrogeologic units of Lundy (1978), Hydrogeologic role/unit of Richter (1981a; Hydrogeologic division of Lowry et al. (1973) Hydrogeologic role/unit of Statewide Huntoon and Lundy (1979a), Thompson (1979), Figure II-6, Table IV-2, and text) Hydrogeologic unit of Mazor (1990) Lithostratigraphic units of Love et al. (1993) [Laramie, Hanna, and Shirley Basins; Hydrogeologic role/unit of Younus (1992) Hydrogeologic unit of HydroGeo, Inc. (2003) Hydrogeologic unit of Taboga (2006) Framework Water Plan Hydrogeologic unit used in this report for SYSTEM AND SERIES Davis (1984), Western Water Consultants, Inc. [Laramie, Hanna, and Shirley Basins; and Mazor et al. (1993) in the Hanna and Laramie Basins Sierra Madre, Laramie Mountains (west flank) [Laramie area/southern Laramie Basin] [Hanna Basin] [Laramie area] (WWC Engineering et al., 2007, Figure 4-9) Hanna and Laramie Basins (1993, 1995), and WWC Engineering (2006a) Sierra Madre, Laramie Mountains (west flank) [Laramie area] ERATHEM and Saratoga Valley areas] [All of Wyoming] [Laramie area] and Saratoga Valley areas] Holocene QUATERNARY and Alluvium and terrace deposits Unit 8 Local aquifers3 Local aquifers Major aquifer–alluvial Quaternary unconsolidated-deposit aquifers Pleistocene Pliocene1 Miocene Miocene and Oligocene rocks Not discussed or not present Undefined Presumed aquifer(s) in investigator’s study area Conglomerate CENOZOIC TERTIARY Oligocene White River Unit 8 Marginal aquifer White River aquifer and confining unit Formation Lower part Principal aquifer–Tertiary aquifer(s)4 Wagon Bed Formation Marginal aquifer Wagon Bed aquifer and confining unit Eocene Wind River Formation Major aquifer–sandstone Wind River aquifer Hanna Formation Aquifer8 Marginal aquifer Hanna aquifer Paleocene 8 Ferris Formation Aquifers and confining units Aquifer Marginal aquifer Ferris aquifer Medicine Bow Formation (not divided or classified in report).
    [Show full text]
  • Identifying a Mass Extinction in Front Range Open Space: Age
    March 14, 2019 Final Report for two-year OSMP-BCPOS-JCOS proposal: “Identifying a mass extinction in Front Range open space: Age & environments of the Lykins Formation” Investigators: James Hagadorn (PI), Bonita Lahey, Linda Smith, Karen Whiteley, and Michael Yusas, Department of Earth Sciences, Denver Museum of Nature & Science, 2001 Colorado Boulevard, Denver, CO 80205 Project Summary: For this project, we analyzed the paleontology, sedimentology, diagenesis, geochemistry and geochronology of the Lykins Formation in JCOS, OSMP, and BCPOS, integrating results from this work with data from other regional exposures of the Lykins Formation and equivalent units. Key outcomes include: A) identification of the overall age of the Lykins Formation and the interval in which the Permian-Triassic boundary occurs; B) assessment of the environments that produced the Lykins and associated strata; and C) characterization of locations in Open Space parcels that may be suitable for connecting the public to the science and history of these rocks. These accomplishments and opportunities are synthesized below. Figure 1: Major basins (dashed outlines) in which Permian-Triassic sedimentary rocks (blue) are exposed. A) Age of the Lykins Formation and position of the Permian-Triassic transition The studied outcrops represent surface exposures of strata that also occur below the surface in the Denver-Julesberg Basin, and they have correlatives in three other Colorado basins, known as the Eagle Basin, Hugoton Embayment, and North Park Basin (Fig. 1). Although the focus of this scholarship is on the surface exposures in OSMP-BCPOS-JCOS, (J1-J3, B1-B2 in Figs. 1, 3) we augment them with data from core (DH01-640; L1-L2 in Fig 1) and outcrop in Larimer County Open Space (L3-L5 in Figs.
    [Show full text]
  • Index to the Geologic Names of North America
    Index to the Geologic Names of North America GEOLOGICAL SURVEY BULLETIN 1056-B Index to the Geologic Names of North America By DRUID WILSON, GRACE C. KEROHER, and BLANCHE E. HANSEN GEOLOGIC NAMES OF NORTH AMERICA GEOLOGICAL SURVEY BULLETIN 10S6-B Geologic names arranged by age and by area containing type locality. Includes names in Greenland, the West Indies, the Pacific Island possessions of the United States, and the Trust Territory of the Pacific Islands UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1959 UNITED STATES DEPARTMENT OF THE INTERIOR FRED A. SEATON, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington 25, D.G. - Price 60 cents (paper cover) CONTENTS Page Major stratigraphic and time divisions in use by the U.S. Geological Survey._ iv Introduction______________________________________ 407 Acknowledgments. _--__ _______ _________________________________ 410 Bibliography________________________________________________ 410 Symbols___________________________________ 413 Geologic time and time-stratigraphic (time-rock) units________________ 415 Time terms of nongeographic origin_______________________-______ 415 Cenozoic_________________________________________________ 415 Pleistocene (glacial)______________________________________ 415 Cenozoic (marine)_______________________________________ 418 Eastern North America_______________________________ 418 Western North America__-__-_____----------__-----____ 419 Cenozoic (continental)___________________________________
    [Show full text]
  • William A. Braddock James C. Cole Open-File Report 78-532 1978 This
    UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY PRELIMINARY GEOLOGIC MAP OF THE GREELEY 1° x 2° QUADRANGLE, COLORADO AND WYOMING William A. Braddock James C. Cole Open-File Report 78-532 1978 This report is preliminary and has not been edited or reviewed for conformity with U.S. Geological Survey standards. DESCRIPTION OF MAP UNITS SURFICIAL DEPOSITS AND SEDIMENTARY ROCKS Qa ALLUVIUM (HOLOCENE) Piney Creek Alluvium and younger deposits Qg GRAVEL AND ALLUVIUM (PLEISTOCENE) Includes Broadway and Louviers Alluviums of Pinedale and Bull Lake ages Qgo OLDER GRAVEL AND ALLUVIUM (PLEISTOCENE) Includes Slocun, Verdos, and Rocky Flats Alluviums of pre-Bull Lake age Ql LANDSLIDE DEPOSITS (HOLOCENE AND PLEISTOCENE) Locally includes talus and rock glacier deposits Qd GLACIAL DRIFT (PLEISTOCENE) Deposits of Pinedale and Bull Lake ages Qdo OLDER GLACIAL DRIFT (PLEISTOCENE) Deposits of pre-Bull Lake age Qe EOLIAN DEPOSITS (HOLOCENE AND PLEISTOCENE) Holocene silt-sand dunes and Pleistocene loess Tgv HIGH-LEVEL GRAVEL DEPOSITS (PLIOCENE? AND MIOCENE) Probably equivalent to Ogallala and? Arikaree Formations To OGALLALA FORMATION (PLIOCENE? AND MIOCENE) Uncemented to well- ceraented stream-deposited gravel, sand, silt, and minor clay; contains caliche horizons; northern Great Plains area; less than 60 meters thick Ta ARIKAREE FORMATION (MIOCENE) Continental gray-brown, fine- to medium-grained, loosely to moderately well cemented sandstone; northern Great Plains area; less than 25 meters thick Twr WHITE RIVER FORMATION OR GROUP (OLIGOCENE) Variegated
    [Show full text]
  • Appendix 1 Descriptions of the GIS Geologic Units, Greater Green River Basin, Wyoming, Colorado, and Utah – for Plate 2
    Appendix 1 Descriptions of the GIS geologic units, Greater Green River Basin, Wyoming, Colorado, and Utah – for Plate 2 10-1 his appendix describes the 171 Geographic Information System (GIS) geologic units (includ- ing surface water) that compose the Greater Green River Basin of Wyoming, Colorado, and Utah – including the Great Divide and Little Snake River basins (Plate 2). The stratigraphic descrip- Ttions in this appendix are for the units shown on Plate 2. The GIS geologic units are ordered as follows: Wyoming 105 GIS units page 10-2 Colorado 40 GIS units page 10-21 Utah 25 GIS units page 10-29 These geologic units are compiled from those parts of the three 1:500,000-scale digital state maps that cover the GGRB. These maps give a code and rock-type description for each unit within the mapped state: each state has its own set of codes, and neither codes nor unit boundaries necessarily match across state borders. In this appendix, for each state, each GIS code and rock-type citation in italics is followed by a description of the corresponding geologic units and rock-stratigraphic units as defined in that state. Plate 7 summarizes these determinations. The abbreviation Ma denotes mega annum or million years before present. GREATER GREEN RIVER BASIN GEOLogic units – WyOMING There are 105 digital GIS geologic units in the Wyoming Greater Green River Basin, including surface water and ice units (Love and Christiansen, 1985; Stoeser et al., 2005). The stratigraphic descriptions below are taken directly from Love and Christiansen (1985) with minor additions.
    [Show full text]
  • Text of This Report
    This is a digital document from the collections of the Wyoming Water Resources Data System (WRDS) Library. For additional information about this document and the document conversion process, please contact WRDS at [email protected] and include the phrase “Digital Documents” in your subject heading. To view other documents please visit the WRDS Library online at: http://library.wrds.uwyo.edu Mailing Address: Water Resources Data System University of Wyoming, Dept 3943 1000 E University Avenue Laramie, WY 82071 Physical Address: Wyoming Hall, Room 249 University of Wyoming Laramie, WY 82071 Phone: (307) 766-6651 Fax: (307) 766-3785 Funding for WRDS and the creation of this electronic document was provided by the Wyoming Water Development Commission (http://wwdc.state.wy.us) Volume 111-A OCCURRENCE AND CHARACTERISTICS OF GROUND WATER IN THE LARAMIE, SHIRLEY, AND HANNA BASINS, WYOMING Henry R. Richter, Jr. Water Resources Research Institute University of Wyoming Supervised by Peter W. Huntoon Department of, Geology University of Wyoming Proj ect Manager Craig Eisen Water Resources Research Institute University of Wyoming Report to U.S. Environmental Protection Agency Contract Number G-008269-79 Project Officer Paul Osborne March, 1981 TABLE OF CONTENTS Chapter Page I . SUMMARY OF FINDINGS .................. 11 . INTRODUCTION ..................... GENERAL ...................... Purpose ..................... Location .................... Physiographic Setting.............. Surface Drainage ................ Climate ..................... Population
    [Show full text]
  • Paleontological Technical Report: Northern Integrated Supply Project, Proposed U.S
    PALEONTOLOGICAL TECHNICAL REPORT: NORTHERN INTEGRATED SUPPLY PROJECT, PROPOSED U.S. HIGHWAY 287 REALIGNMENT LARIMER COUNTY, COLORADO Prepared for: ERO Resources Corporation 1842 Clarkson Street Denver, CO 80218 Prepared by: Paul C. Murphey, Ph.D. and David Daitch, M.S. Rocky Mountain Paleontology 4614 Lonespur Court Oceanside, CA 92056 303-514-1095; 760-758-4019 www.rockymountainpaleontology.com Prepared under State of Colorado Paleontological Permit 2006-5 Revised October 2014 TABLE OF CONTENTS 1.0 SUMMARY ........................................................................................................................ 1 2.0 INTRODUCTION .............................................................................................................. 3 2.1 Definition and Significance of Paleontological Resources ..................................... 3 3.0 METHODS ......................................................................................................................... 5 4.0 LAWS, ORDINANCES, REGULATIONS, AND STANDARDS .................................... 6 4.1 Federal..................................................................................................................... 6 4.2 State......................................................................................................................... 8 4.3 County ..................................................................................................................... 8 4.4 City .........................................................................................................................
    [Show full text]
  • Notes on the Geology of Green River Valley Between Green River, Wyoming, and Green ;River, Utah
    NOTES ON THE GEOLOGY OF GREEN RIVER VALLEY BETWEEN GREEN RIVER, WYOMING, AND GREEN ;RIVER, UTAH. By JoHN B. REESIDE, Jr. INTRODUCTION. history of American geology, I venture to During July, August, and part of September, to record them for whatever value they may 1922, I had the privilege of accompanying a have to other geologists. party sent out jointly by the Utah Power & GEOLOGIC NOTES. Light Co. and the United States Geological Survey to gather such data as were still needed Green River, Wyo., to the mouth of Henrys to complete a study of the power resources of Fork.-Most of the part of Green River valley Green River between Green River, Wyo., and lying between Green River, Wyo., and Henrys Green River, Utah. The chief deficiency to be Fork is cut in rocks .assigned to the Green supplied was a continuous topographic map River formation (lower Eocene). This for­ of the valley in sufficient detail to permit mation includes a lower division of whitish, calculation of the storage capacity of any gray, and greenish fissile shale, light-colored reservoir site that might be used, the stream limestone, and sandstone and an upper di­ gradient, and similar features. Maps on a vision of massive, irregularly bedded brown satisfactory scale of a number of isolated sandstone with some sandy limestone and stretches of the river had already been made shale-the "Tower sandstone" and "plant by public or private agencies, and it was beds" of Powell.1 Over much of the way the necessary to verify them and connect them "Tower sandstone" caps the bluffs along the on a uniform datum.
    [Show full text]
  • 3D Geologic Modeling and Fracture Interpretation of the Tensleep Sandstone, Alcova Anticline, Wyoming
    3D GEOLOGIC MODELING AND FRACTURE INTERPRETATION OF THE TENSLEEP SANDSTONE, ALCOVA ANTICLINE, WYOMING by Nathaniel J. Gilbertson A thesis submitted to the faculty and Board of Trustees of the Colorado School of Mines in partial fulfillment of the requirements for the degree of Master of Science (Geology) Golden, Colorado Date ___________ Signed: _____________________ Nathaniel J. Gilbertson Approved: ___________________ Dr. Neil F. Hurley Thesis Advisor Golden, Colorado Date ___________ _______________________ Dr. Murray W. Hitzman Professor and Head, Department of Geology and Geological Engineering ii ABSTRACT Alcova anticline is a Laramide-age structure on the southeast margin of the Wind River basin, central Wyoming. The Tensleep Sandstone is exposed at the core of the anticline. The North Platte River cuts across the axis of the anticline, resulting in two near-vertical walls of Tensleep Sandstone, approximately 500 m (1640 ft) wide, 100 m (330 ft) tall, separated by approximately 140 m (460 ft). The purpose of this study is to: 1) determine the changes in fracture orientation and intensity across the Alcova anticline, 2) use the emerging technology of LiDAR to aid in the quantification of fracture orientation and intensity in an outcrop setting, 3) characterize fractures at Alcova anticline in a way that will allow the data to be used in a fractured reservoir flow model of analogous structures and, 4) complete a revised geologic map of the Alcova anticline and vicinity. LiDAR is a laser-scanning technique that provides high-resolution (1-2 cm, 0.4- 0.8 in) topography of outcrop surfaces. The LiDAR survey at Alcova anticline contains sufficient data points to resolve fracture planes ≥1 m2 (11 ft2) in area.
    [Show full text]