I

2 WYOMING GEOLOGICAL ASSOCIATION GUIDEBOOK

TABLE OF CONTENTS

Title page 1Table of Contents 2-3Dedication 4-5In Memoriam 6-7-8-9-10-11

Greetings 12WGA Officers and Field Conference Committee 13Previous Conferences and Publications 14-15Stratigraphic Chart 16List of Advertisers 404

REGIONAL SEITINGTectonic Map of the Overthrust Belt, Western Wyoming, Northwestern Utah, and Southeastern Idaho,

Showing Oil and Gas Fields and Exploratory Wells in the Overthrust Belt and Adjacent GreenRiver Basin - Compiled by D.L. Blackstone Jr., and R.H. DeBruin (Published by the Geological Surveyof Wyoming as Map Series 23) in pocket

Pre-Thrusting Regional Stratigraphy and Paleotectonics, Northern Rocky Mountains and AdjacentCordilleran Shelf, U.S. - by James A. Peterson. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 17

Basement Tectonic Controls on Structural Style of the Laramide Thrust Belt Interpreted fromGravity and Magnetic Data - by Richard I. Gibson. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 27

Significance of Backthrusting in the Rocky Mountain Thrust Belt - by Suzanne Webel. . . . . . . . . . . . . . . . . . . . . .. 37

Structural Controls on Syntectonic Diagenesis within the Haystack Peak Region of the AbsarokaThrust Sheet, Idaho-Wyoming-Utah Thrust Belt - by Joyce M. Budai and David V. Wiltschko 55

Stratigraphic Separation Diagrams and Thrust Belt Structural Analysis - by Nicholas B. Woodward. . . . . . . . . . .. 69

Laramide Uplift of the Gros Ventre Range and Implications for the Origin of the Teton Fault,Wyoming - by D.R. Lageson. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 79

Mesozoic and Cenozoic Structures of the Pocatello Region, Southeastern Idaho -by William D. Burgel, David W. Rodgers, and Paul Karl Link 91

Effects on the Calcite Fabric (Madison Formation) of the Impingement of the Darby-Hogsback ThrustSheet and La Barge Platform, Snider Basin Area, Wyoming - by David H. Kraig and David V. Wiltschko .... 101

Timing and Structural Relations Between the Gros Ventre Foreland Uplift, the Prospect ThrustSystem, and the Granite Creek Thrust, Hoback Basin, Wyoming - by R.B. Hunter 109

STRATIGRAPHY AND SEDIMENTATION

Stratigraphy of the Brigham Group (Late Proterozoic-Cambrian), Bannock, Portneuf, and Bear RiverRanges, Southeastern Idaho - by Paul Karl Link, S.T. Jansen, P. Halimdihardja, A. Lande and P. Zahn 133

Lower Triassic Rocks Within the Adjacent to the Thrust Belt of Wyoming, Idaho, and Utah -by Richard A. Paull and Rachel K. Paull 149

The Stratigraphy ofthe Nugget Sandstone - by Nancy M. Doelger 163

Dakota-Bear River Paleoenvironments, Depositional History and Shoreline Trends-Implicationsfor Foreland Basin Paleotectonics, Southwestern Green River Basin and Southern WyomingOverthrust Belt - by Thomas A. Ryer, Jon J. McClurg and Margaret M. Muller 179

Petrology and Environmental Interpretation of the Synorogenic Bacon Ridge Formation, NorthwestWyoming - by William R. Davidson 207

Origin of Late Cretaceous to Early Tertiary Quartzite Conglomerates in Northwestern Wyoming -by James G. Schmitt 217

Sedimentary Evolution of the Miocene-Pliocene Camp David Basin, Northwestern Wyoming -by Timothy J. Olson and James G. Schmitt 225

WYOMING GEOLOGICAL ASSOCIATION GUIDEBOOK 3

OIL AND GASProduction Statistics for the Overthrust Belt and Moxa Arch -

by Alison B. Doyle, Janet L de Vries, and David J. Alban 245Importance of the Overthrust Belt to Wyoming's Petroleum Industry - by Rodney H. DeBruin 253

Review of the Hydrocarbon Potential of the Crawford Thrust Plate Wyoming-Idaho-Utah Thrust Belt -by Gerard L. Valenti 257

Pre-Thrusting Basin Morphology: Influence on Geochemical "Fairways" and Subsequent ThrustDeformations in the Wyoming-Idaho Thrust Belt - by Michael Fahy 267

Structural Development and Hydrocarbon Entrapment at Whitney Canyon and Yellow Creek Fields,Wyoming Overthrust Belt - by Gary D. Couples, Gary M. Weir and William R. Jamison 275

INDUSTRIAL, METALLIC, AND WATER RESOURCESPreliminary Report on Gold Mineralization, Petrology, and Geochemistry of the South Pass

Granite-Greenstone Belt, Wind River Mountains, Wyoming - by W. Dan Hausel 287

The Vanadiferous Zone of the Phosphoria Formation in Western Wyoming and SoutheasternIdaho - by V.E. McKelvey, J.D. Strobell, Jr. and A.L. Slaughter 305

Sedimentary Facies Control on Mineralization at the Lake Alice District in the Wyoming OverthrustBelt - by S.A. Loose and W.W. Boberg 309

Industrial Minerals of Western Wyoming - by R.E. Harris 329

The Strange Hydrodynamics of Periodic Spring, Salt River Range, Wyoming -by Peter W. Huntoon and James C. Coogan 337

Chemistry of Thermal Water and Estimated Reservoir Temperatures in Southeastern Idaho,North-Central Utah, and Southwestern Wyoming - by Charles Avery 347

ABSTRACTSSelect Geologic Hazards in the Wyoming Thrust Belt - by J. C. Case 355

Crustal Wedging and Back Thrusting of Rocky Mountain Uplifts - by E. A. Erslev and J. Rogers 355

Stratigraphy of the Frontier Formation, Teton County, Wyoming - by R. L. Hill 355

Variations in Structural Style Within Thrust Sheets - by D. R. Lageson and B. A. IhIe 356

Source-Rock Evaluation of Lower Cretaceous Rocks, Moxa Arch,Utah and Wyoming -:--by B. E. Law and J. L. Clayton 357

Bearpaw Thrust Faults, an Alternative Interpretation and Key to Gas Exploration - by W. Shepard 357

ROAD GUIDESRoad Log, Geology of the Snake River Range and Adjacent Areas - Compiled by W.R. Miller

from logs by Albee and others (1977). Barnes and Perkins (964), Love and Love (1980), andLove and deLa Montagne (1956) 359

Road Log, North End of Blacktail Butte up Gros Ventre River Valley to Crystal Creek andReturn Along Kelly Road - by J.D. Love and Jane M. Love 385

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