Pennsylvanian and Early Permian Paleogeography of the Uinta-Piceance Basin Region, Northwestern Colorado and Northeastern Utah
Total Page:16
File Type:pdf, Size:1020Kb
Pennsylvanian and Early Permian Paleogeography of the Uinta-Piceance Basin Region, Northwestern Colorado and Northeastern Utah U.S. GEOLOGICAL SURVEY BULLETIN 1 787-CC AVAILABILITY OF BOOKS AND MAPS OF THE U.S. GEOLOGICAL SURVEY Instructions on ordering publications of the U.S. Geological Survey, along with the last offerings, are given in the current-year issues of the monthly catalog "New Publications of the U.S. Geological Survey." Prices of available U.S. Geological Survey publications released prior to the current year are listed in the most recent annual "Price and Availability List." Publications that are listed in various U.S. Geological Survey catalogs (see back inside cover) but not listed in the most recent annual "Price and Availability List" are no longer available. Prices of reports released to the open files are given in the listing "U.S. Geological Survey Open-File Reports," updated monthly, which is for sale in microfiche from the U.S. Geological Survey Books and Open-File Reports Sales, Box 25286, Denver, CO 80225. Order U.S. Geological Survey publications by mail or over the counter from the offices given below. BY MAIL OVER THE COUNTER Books Books Professional Papers, Bulletins, Water-Supply Papers, Tech Books of the U.S. Geological Survey are available over the niques of Water-Resources Investigations, Circulars, publications counter at the following U.S. Geological Survey offices, all of of general interest (such as leaflets, pamphlets, booklets), single which are authorized agents of the Superintendent of Documents. copies of periodicals (Earthquakes & Volcanoes, Preliminary De termination of Epicenters), and some miscellaneous reports, includ ANCHORAGE, Alaska-4230 University Dr., Rm. 101 ing some of the foregoing series that have gone out of print at the ANCHORAGE, Alaska-605 West 4th Ave., Rm G-84 Superintendent of Documents, are obtainable by mail from DENVER, Colorado-Federal Bldg., Rm. 169,1961 Stout St. U.S. Geological Survey, Books and Open-File Report Sales Box 25286 LAKEWOOD, Colorado-Federal Center, Bldg. 810 Denver, CO 80225 MENLO PARK, California-Bldg. 3, Rm. 3128, 345 Middlefield Rd. Subscriptions to periodicals (Earthquakes & Volcanoes and Preliminary Determination of Epicenters) can be obtained ONLY RESTON, Virginia-National Center, Rm. 1C402, 12201 from Sunrise Valley Dr. SALT LAKE CITY, Utah-Federal Bldg., Rm. 8105, 125 Superintendent of Documents South State St. U.S. Government Printing Office Washington, DC 20402 SPOKANE, Washington-U.S. Courthouse, Rm. 678, West 920 Riverside Ave. (Check or money order must be payable to Superintendent of WASHINGTON, D.C.-U.S. Department of the Interior Bldg., Documents.) Rm. 2650, 1849 C St., NW. Maps Maps For maps, address mail order to Maps may be purchased over the counter at the U.S. Geolog ical Survey offices where books are sold (all addresses in above list) U.S. Geological Survey, Map Sales and at the following Geological Survey offices: Box 25286 Denver, CO 80225 ROLLA, Missouri-1400 Independence Rd. Residents of Alaska may order maps from FAIRBANKS, Alaska-New Federal Building, 101 Twelfth Ave. U.S. Geological Survey, Map Sales 101 Twelfth Ave., Box 12 Fairbanks, AK 99701 Chapter CC Pennsylvanian and Early Permian Paleogeography of the Uinta-Piceance Basin Region, Northwestern Colorado and Northeastern Utah By SAMUEL Y. JOHNSON, MARJORIE A. CHAN, and EDITH A. KONOPKA A multidisciplinary approach to research studies of sedimentary rocks and their constituents and the evolution of sedimentary basins, both ancient and modern U.S. GEOLOGICAL SURVEY BULLETIN 1787 EVOLUTION OF SEDIMENTARY BASINS UINTA AND PICEANCE BASINS U.S. DEPARTMENT OF THE INTERIOR MANUEL LUJAN, JR., Secretary U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U. S. Government UNITED STATES GOVERNMENT PRINTING OFFICE: 1992 For sale by Book and Open-File Report Sales U.S. Geological Survey Federal Center, Box 25286 Denver, CO 80225 Library of Congress Cataloging-in-Publication Data Johnson, Samuel Y. Pennsylvanian and Early Permian paleogeography of the Uinta-Piceance Basin re gion, northwestern Colorado and northeastern Utah / by Samuel Y. Johnson, Marjorie A. Chan, and Edith A. Konopka. p. cm. (Evolution of sedimentary basins Uinta and Piceance basins; ch. CO (U.S. Geological Survey bulletin ; 1787-CC) Includes bibliographical references. 1. Paleogeography Uinta Basin (Utah and Colo.) 2. Paleogeography Colo rado Piceance Creek Basin. 3. Geology, Stratigraphic Pennsylvanian. 4. Geology, Stratigraphic Permian. 5. Geology, Structural Uinta Basin (Utah and Colo.) 6. Geology, Structural Colorado Piceance Creek Basin. 7. Uinta Basin Utrah and Colo.) 8. Piceance Creek Basin (Colo.) I. Chan, Marjorie A. II. Konopka, Edith. III. Title. IV. Series. V. Series: U.S. Geological Survey bulle tin ; 1787-CC. QE75.B9 no. 1787-CC [QE501.4.P3] 557.3 s dc20 [551.7'52'09792] 91-43773 CIP CONTENTS Abstract CC1 Introduction CC2 Late Paleozoic tectonism and regional geology CC4 Late Paleozoic climate, eustasy, and cyclicity CC6 Paleogeography of the Uinta-Piceance basin region CCS Sub-Pennsylvanian geology CCS Early to early Middle Pennsylvanian Morrowan and early Atokan CC10 Middle and late Middle Pennsylvanian Late Atokan and Desmoinesian CC14 Late Pennsylvanian Missourian and Virgilian CC19 Early Early Permian early Wolfcampian CC23 Discussion CC27 Conclusions CC30 References cited CC31 Appendix Borehole geophysical logs CC35 FIGURES 1, 2. Maps showing: 1. Uinta-Piceance basin region and outcrops and borehole locations in study CC2 2. Schematic paleogeography of Uinta-Piceance basin region and surround ing areas CC3 3. Chart showing Pennsylvanian and Permian stratigraphy of sedimentary prov inces in Uinta-Piceance basin region CCS 4. Graph showing inferred sea-level curve for the Pennsylvanian and Early Permian CC7 5. Drawings showing schematic Pennsylvanian depositional sequences in Uinta- Piceance basin region CC9 6-9. Maps of Uinta-Piceance basin region showing paleogeography during maxi mum regression and transgression: 6. Morrowan to early Atokan CC12 7. Late Atokan to Desmoinesian CC16 8. Missourian to Virgilian CC20 9. Early Wolfcampian CC24 10, 11. Geohistory diagrams, Uinta-Piceance basin region, for: 10. Oquirrh basin, Wyoming shelf, northern Paradox basin, and Eagle basin CC28 11. Total subsidence and basement subsidence in Oquirrh basin, Wyoming shelf, Paradox basin, and Eagle basin CC29 Contents III EVOLUTION OF SEDIMENTARY BASINS UINTA AND PICEANCE BASINS Pennsylvanian and Early Permian Paleogeography of the Uinta-Piceance Basin Region, Northwestern Colorado and Northeastern Utah By Samuel Y. Johnson 1 , Marjorie A. Chan2, and Edith A. Konopka3 Abstract uplifts and rapid rise of the Uncompahgre uplift. In the central parts of the Eagle and Paradox basins, tectonic activity resulted The Uinta-Piceance basin region of northwestern Colo in restricted circulation and low clastic sediment supply, creat rado and northeastern Utah includes parts of four major sedi ing conditions suitable for evaporite deposition during regres mentary provinces that were active during the late Paleozoic sions. Regressive deposition was also characterized by ancestral Rocky Mountain orogeny: the Eagle basin, the north significant progradation of eolian sands across the Wyoming ern part of the Paradox basin, the southern Wyoming shelf, and shelf en route to the Oquirrh basin. Limestone deposition was the southeastern part of the Oquirrh basin. Depositional pat dominant throughout the region during transgressions. terns in these sedimentary provinces were controlled to vary During the Missourian and Virgilian, progradation of ing degrees by eustatic and climatic fluctuations (forced by clastic sediments into the central parts of the Eagle and north expansion and contraction of late Paleozoic continental ice ern Paradox basins resulted in termination of evaporite deposi sheets), tectonism, and sediment supply. Four sets of paleogeo- tion. During regressions, fluvial and eolian deposition graphic maps illustrate the major changes in paleogeography dominated in the Eagle basin, and sabkha and (or) shallow and depositional patterns associated with repetitive transgres marine deposition dominated in the northern Paradox basin. sions and regressions. In general, clastic deposition (mostly The Wyoming shelf continued to serve as a conveyor belt of sandstone in fluvial, deltaic, and eolian systems) dominated clastic sediment to the Oquirrh basin, which was characterized during regressions, whereas deposition of marine limestone by a transition from shallow- to deep-water deposition. Depo and clastic rocks characterized transgressions. The most arid sition of limestone during transgressions was limited to the climates are correlated with regressions. western part of the Uinta-Piceance basin region and a small Morrowan and lower Atokan strata throughout most of area in the eastern Eagle basin. the Uinta-Piceance basin region consist of fine-grained clastic In the early Wolfcampian, the Emery uplift became fully rocks (regressive deposits) and more abundant limestone or mostly submerged, and the Paradox basin ceased to be a dis (transgressive deposits). Significant Morrowan and early Ato crete geomorphic element. Deep-water clastic deposition in kan tectonic uplifts include the Front Range and Sawatch the Oquirrh basin continued from the latter part of the uplifts.