Geology of the Sage and Kemmerer 15-Minute Quadrangles ...

[Pages:9]Geology of the Sage and Kemmerer 15-Minute Quadrangles, Lincoln County, Wyoming

GEOLOGICAL SURVEY PROFESSIONAL PAPER 855

GEOLOGY OF THE SAGE AND KEMMERER 15-MINUTE QUADRANGLES, LINCOLN COUNTY, WYOMING

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FRONTISPIECE.- Absaroka thrust fault on Comm issary Ridge (Absaroka Ridge of older maps) ; view is northward from peak in the SW '/, sec. 32, T. 23 N ., R. 116 W. Rock units depicted by labels are: Hams Fork Conglomerate Member of the Evanston Formation (Keh), the Shurtliff Sandstone Member (Khs), and other units of the Hilliard Shale (Kh), the Frontier Formation (Kf) , unspecified units of the Triassic System (TRu), the Phosphoria Formation (Pp), the Wells Formation (P IPw) , colluvium, and rock debris (Qd) .

Geology of the Sage and Kemmerer 15-Minute Quadrangles, Lincoln County, Wyoming

By WILLIAM W. RUBEY, STEVEN S. ORIEL, and JOSHUA I. TRACEY, JR. GEOLOGICAL SURVEY PROFESSIONAL PAPER 855

Geologic map and structure sections depict the geometry of part of the western Wyoming thrust belt where overlapped by mainly Tertiary strata of northern Fossil basin

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON :1975

UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary

GEOLOGICAL SURVEY V. E. McKelvey, Director

Library of Congress Cataloging in Publication Data

Rubey, William Walden, 1898-

Geology of the Sage and Kemmerer 15-minute quadrangles, Lincoln County, Wyoming.

(Geological Survey Professional Paper 855) Bibliography: p. Supt. of Docs. No.: I 19.16:855 1. Geology-Wyoming-Lincoln Co. I. Oriel, StevenS., joint author. II. Tracey, Joshua Irving, 1915-

III. Title. IV. Series: United States Geological Survey Professional Paper 855. QE75.P9 no. 855 (QE182.L6] 557.3'08s (557.87'82] 74-14808

joint author.

For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402- Price $2.25 (paper cover) Stock Number 024-001-02614-7

CONTENTS

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Abstract ________________________________ _

Introduction ___ -- _______ ------------------ 1 Stratigraphy _____________ --- ____ ---------- 3

Cambrian System ------------------------ 3 Gallatin Limestone --------------------- 3

Ordovician System ------------------------ 3 Bighorn Dolomite ---------------------- 3

Devonian and Mississippian Systems _ _ _ _ _ _ _ _ _ _ _ _ _ 3

Darby Formation ___ ------------------- 3 Mississippian System ---------------?------- 3

Madison Limestone--------------------- 3 Mississippian and Pennsylvanian Systems _ _ _ _ _ _ _ _ _ _ 3

Amsden Formation --------------------- 3 Pennsylvanian and Permian Systems _ _ _ _ _ _ _ _ _ _ _ _ _ 3

Wells Formation----------------------- 3 Permian System ---------------~--------- 4

Phosphoria Formation and Equivalent Strata _ _ _ _ _ _ 4

Triassic System-------------------------- 4 Dinwoody Formation -------------------- 4 Woodside Red Beds--------------------- 4 Thaynes Limestone _______ ---,---- __ ------ 4

Ankareh Red Beds --------------------- 4 Triassic(?) and Jurassic(?) Systems _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4

Nugget Sandstone ________________ :------ 4

Jurassic System ------------------------- 5 Twin Creek Limestone ------------------- 5 Preuss Red Beds and Stump Sandstone _ _ _ _ _ _ _ _ _ 5

Cretaceous System ____ ~ -- ___________ --- _ -- 5

Gannett Group ----------------------- 5 Intertonguing Lower Cretaceous units _ _ _ _ _ _ _ _ _ _ 5

Bear River Formation ------------------- 6 Aspen Shale _ ------------------------ 6 Smiths Formation---------------------- 6 Thomas Fork Formation ------------------ 6

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Stratigraphy- Continued Cretaceous System - Continued Cokeville Formation _______ -- ______ ---- _ 6

Sage Junction Formation ----------------- 7 Frontier Formation --------------------- 7 Hilliard Shale ------------------------ 7 Adaville Formation --------------------- 8 Cretaceous System and Paleocene Series _ _ _ _ _ _ _ _ _ _ _ 8

Evanston Formation -------------------- 8 Eocene Series __________________________ _ 9

Wasatch Formation ____________________ _ 9 Green River Formation------------------- 9 Fowkes Formation---------------------- 10 Upper Cenozoic deposits -------------------- 10 Structure _________________ ---- ______ ----- 11

Crawford fault -------------------------- 11 Stoffer Ridge fault ------------------------ 11 Tunp fault _______________ -- __________ -_ 11

Thrust slices --------------------------- 11 Absaroka fault -------------------------- 12 Lazeart syncline ___________ -- _____ -- __ -- _ 12 Other folds ---------------------------- 12 High-angle faults------------------------- 12 Ages of deformation ---:--------------------- 14 Economic geology ___ ------------------------ 14 Coal __________________ -- ________ ---- 14

Oil and gas ---------------------------- 15 Phosphate ______________ ---- ________ --- 15 Vanadiferous shale _ _ _ _ _ _ __ _ _ __ _ _ __ _ __ __ _ _ _ 16

Oil shale------------------------------ 16 Fossil fish _______________ --- _ ---- _ ----- 16

Copper and associated metals ----------------- 16 Engineering geology ----------------------- 16 References _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 17

ILLUSTRATIONS

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FRONTISPIECE. Photograph of the Absaroka thrust fault exposed along the southern end of Commissary Ridge. PLATE 1. Geologic map of the Sage and Kemmerer quadrangles, Lincoln County, Wyo _____________________ _ In pocket

2. Structure sections of the Sage and Kemmerer quadrangles, Lincoln County, Wyo __________________ _ In pocket FIGUIU~ 1. Index map of central part of thrust belt of western Wyoming, southeastern Idaho, and northeastern Utah _ _ _ _ _ _ _ _ _ _ _ 2

2. Vertical air photographic view of the Lazeart syncline in the northeastern part of the Kemmerer quadrangle _________ 13

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