| 1990 - Wyoming Sedimentation & Tectonics |
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Wyoming Geological Association Forty-First Field Conference Guidebook 1990 WYOMING CENTENNIAL FIELD TRIP featuring WYOMING SEDIMENTATION AND TECTONICS Editor RALPH W. SPECHT Casper, Wyoming: August 17-23, 1990
EDITOR: Ralph Specht Guidebook: 187 pages, 10 papers, 4 abstracts, plates in pocket Road Log volume: 145 pages covering the six-day Wyoming Centennial Field Trip In recognition of the 1990 Wyoming Centennial, the Wyoming Geological Association hosted a six day geological tour of the state with an emphasis on sedimentation and tectonics. The guidebook includes papers on the Bighorn Mountains, the Bighorn Basin, the Clarks Fork Basin, the Pryor Mountains, the Absaroka Basin, the Wyoming Thrust Belt, the Owl Creek Mountains, the Wind River Basin and the Washakie Range. TABLE OF CONTENTS
Structural Geology of the Walker Mountain-Northern Piney Creek Area, Bighorn Mountains, Wyoming - Richard B. Furner...19 Late Paleozoic Uplift And Sedimentation, Northeast Bighorn Basin, Wyoming - Scott P. Simmons and Peter A. Scholle...39 Persistent Myth About the Lower Triassic Little Medicine Member of the Goose Egg Formation and the Lower Triassic Dinwoody Formation, Central Wyoming - Richard A. Paull and Rachel K. Paull...57 Tectonic Significance Of Paleocene Alluvial Sequence, Clarks Fork Basin, Wyoming-Montana - Scott J. Johnson and Larry T. Middleton...69 Thin-Skinned Shortening Geometries of the South Fork Fault: Bighorn Basin, Park County, Wyoming - Timothy L. Clarey...89 Transpressional Structures Along the Southern Terminus of the Dryhead Fault, East Pryor Mountain, Montana & Wyoming - Andrew Orrell...99 Sedimentation And Tectonics of the Absaroka Basin of Northwestern Wyoming - Kent A. Sundell...105 Ore Mineralogy, Paragenesis, Source of Metals, and Timing of Mineralization of the Lake Alice Cu-Ag-Pb-Zn District in the Wyoming Thrust Belt - Steven A.Loose...123 Rocky Mountain Foreland Structure Exemplified by the Owl Creek Mountains, Bridger Range and Casper Arch, Central Wyoming - D.L. Blackstone, Jr...151 Summary of Laramide Depositional and Tectonic Events East Fork Area, Northwestern Wind River Basin and Adjacent Washakie Range, Wyoming - Gustav F. Winterfeld...167 ABSTRACT: "Origin of the Powder River Basin Coals: A Controversy Revisited" - James McClurg...180 ABSTRACT: "Early Cretaceous Muddy Sandstone of Western Wind River Basin, Wyoming" - William H. Curry III...182 ABSTRACT: "The Case for a Continuous Heart Mountain Allochthon" - Thomas A.Hauge...183 ABSTRACT: "Influence of Basin Subsidence on Facies in the Upper Cretaceous Lance Formation, Eastern Wind River Basin, Wyoming" - Janice M. Gillespie...186 List of Advertisers...188 Wyoming Geological Association 41st Field Conference Wyoming Centennial Field Trip Featuring Wyoming Sedimentation and Tectonics FIELD TRIP ROAD LOGS Co-Editors Janet L. de Vries and Fred Crockett August 17-23, 1990 TripMap...Inside Front Cover Greetings...2 Acknowledgements...3 1990 WGA Officers...4 1990 Field Conference Committee...4 Day 1-Casper to Sheridan...5 Day 2-Sheridan to Cody...17 Day 3-Cody to Jackson...49
Day 4-Jackson to Hoback Canyon and Snake River Canyon...90 Day 5-Jackson to Riverton...98
Day 6-Riverton to Casper...128
References...139 Stratigraphic Chart...Inside Back Cover |
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