DOCSLIB.ORG

Pamphlet PDF File

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Pamphlet PDF File Geologic Map of Precambrian Rocks, Rawhide Buttes West Quadrangle and Part of Rawhide Buttes East Quadrangle, Hartville Uplift, Goshen and Niobrara Counties, Wyoming By W.C. Day, P.K. Sims, G.L. Snyder, A.B. Wilson, and T.L. Klein, with a section on Geochronology by Zell E. Peterman, Kiyoto Futa, and R.E. Zartman Pamphlet to accompany map Geologic Investigations Series I–2635 1999 U.S. Department of the Interior U.S. Geological Survey CONTENTS Introduction 1 Stratigraphy 2 Granitic rocks 3 Structure 3 Deformations D1 and D2 4 Deformations D3 and D4 4 Terranes Delineated in map area 5 Rawhide Buttes terrane 6 Flattop Butte terrane 6 Rawhide Creek terrane 7 Muskrat Canyon terrane 8 Wildcat Hills terrane 8 Acknowledgments 8 Geochronology 10 Flattop Butte Granite 10 Rawhide Buttes Granite 12 References cited 14 FIGURES 1. Index map of Hartville uplift showing outline of Rawhide Buttes West and Rawhide Buttes East quadrangles 1 2. Precambrian basement map of north-central United States and adjacent Canada 1 3. K-Q-P diagram showing compositions (volume percent) of 2.65-Ga Flattop Butte Granite and 2.66-Ga Rawhide Buttes Granite 3 4. Index to tectonostratigraphic terranes in Rawhide Buttes West and Rawhide Buttes East quadrangles 5 5. Equal-area projections (lower hemisphere) of structures in Rawhide Buttes Granite in Rawhide Buttes terrane 6 6. Equal-area projections (lower hemisphere) of structures in Bald Butte domain of Rawhide Buttes terrane 7 7. Equal-area projection (lower hemisphere) of structures in southern part of Flattop Butte terrane 7 8. Equal-area projections (lower hemisphere) of D2 structures in Flattop Butte Granite 8 9. Map showing localities of geochronology samples 9 10. Rubidium-strontium isochron diagram for whole-rock samples of the Flattop Butte Granite 11 11. Uranium-lead concordia diagram for the zircons from the gneiss at Cassa anticline and the Flattop Butte Granite 12 12. Rubidium-strontium isochron diagram for Rawhide Buttes Granite 12 TABLES 1. Tectonic evolution of Hartville Uplift during the Precambrian 2 2. Approximate modes of Rawhide Buttes Granite (percent by volume) 4 3. Approximate modes of Flattop Butte Granite (percent by volume) 4 4. Rubidium and strontium data for whole-rock samples and minerals from the Flattop Butte Granite and Rawhide Buttes Granite 10 5. Samarium-neodymium data for whole-rock samples from the Hartville Uplift 11 6. Uranium, thorium, and lead data for zircons from the Flattop Butte Granite and gneiss at Cassa anticline 12 ii INTRODUCTION 112° 108° 104° 100° 96° YXs XAm Detailed geologic mapping (scale 1:24,000) of Precam- 56° brian rocks in the Hartville Uplift, southeastern Wyoming OROGEN (Day and others, 1994; fig. 1) following earlier regional CREE LAKE ZONE/HEARNE Thompson geologic mapping (scale 1:48,000) by Snyder (1980) has PROVINCE belt shown that the Late Archean granite and supracrustal rocks (Whalen Group) of the Wyoming province (fig. 2) were ONTARIO deformed during three convergent (tectonic) events in the Early Proterozoic, extending from between ~2.1 Ga to 52° ALBERTA pre-1.7 Ga (table 1). These events are recorded in the SASKATCHEWAN XAi Guernsey quadrangle (Sims and others, 1997) (fig. 1) and RAE AND HEARNE TRANS-HUDSON are expressed in part in this map area. From oldest to PROVINCES XAm ° 104 45´ 104°30´ 42° 45´ EXPLANATION MANITOBA NORTH DAKOTA Haystack Range Granite, GFTZ 1.73 Ga 48° Twin Hills Diorite, 1.74 Ga SUPERIOR WYOMING PROVINCE MINNESOTA Flattop Butte Granite, PROVINCE 2.65 Ga Rawhide Buttes Granite, Boundary of Rawhide 2.66 Ga Buttes quadrangles SOUTH Whalen Group GLTZ DAKOTA MONTANA Contact WYOMING Thrust fault BH 44° Transcurrent YXs movement HU on fault LM Xp FAULT NEBRASKA MB CB Xcp 42° 30´ 0100 200 300 MILES Map area 0 200 400 KILOMETERS EXPLANATION HARTVILLE Tectonic features CB Cheyenne belt Middle and Early Proterozoic GFTZ Great Falls tectonic zone GLTZ YXs Athabasca Sandstone Great Lakes tectonic zone Laramide uplifts and Sioux Quartzite Early Proterozoic (2.5–1.6 BH Black Hills Uplift HU Ga) Hartville Uplift Xcp Central Plains orogen LM Laramie Mountains (1.78–1.64 Ga) MB Medicine Bow Mountains Xp Penokean orogen (2.2–1.84 Ga) Thrust fault—Sawteeth on Early Proterozoic and upper plate; dashed Archean Trans-Hudson where approximately orogen located Hartville XAi Juvenile terranes Fault—Dashed where Study (Reindeer zone) approximately located area XAm Area of Miogeoclinal belt Boundary between exposed I–2567 geologic domains Archean (2.5 Ga and older) Boundary between domains WYOMING Rae and Hearne in the subsurface 26 42° Guernsey provinces Edge of exposed Precam- 15´ Wyoming province brian rocks—Hachures 0 5 10 MILES point toward exposed Superior province area 0 5 10 KILOMETERS Figure 2.MMPrecambrian basement map of north-central United States and adjacent Canada. The Hartville Uplift Figure 1.MMIndex map of Hartville Uplift showing out- (HU) is at the intersection of the Trans-Hudson and line of Rawhide Buttes West and Rawhide Buttes East Central Plains orogens, and rocks in the uplift were quadrangles. Outline of published map I–2567 (Sims deformed by both Early Proterozoic orogenies, as well as and others, 1997) also shown. by an earlier unnamed deformation (D2). 1 Table 1. Tectonic evolution of Hartville Uplift during the doming caused by emplacement of bodies equivalent to the Precambrian. 1.72-Ga Haystack Range Granite. The Precambrian episodes of deformation expressed in Age (Ga) Event the Rawhide Buttes area are similar to those in the Guernsey 1.32 Cryptic event indicated by biotite ages. area. Two regional deformations (D2 and D3) are recognized in the Rawhide Buttes East and Rawhide Buttes West ca. 1.4 Emplacement of mafic dikes; undeformed. 1:24,000 quadrangles. They compose a fold-and-thrust belt ca. 1.6 Cryptic thermal event, indicated by sphene, apatite, (D3) on the western, continental margin of the Trans-Hudson and monazite. orogen. A generally prominent ductile S-surface (S3) con- 1.72 Emplacement of Haystack Range Granite as domes, taining a stretching lineation (L3) is present locally. The with deformed and metamorphosed margins— stretching lineation (X direction of the strain ellipsoid) Deformation D4. plunges moderately southeast, indicating a northwest direc- tion of tectonic transport (see map) during deformation D . 1.74 Emplacement of Twin Hills Diorite as a predecessor 3 Deformation D affected the entire uplift. It was a compres- to Haystack Range Granite. 2 sional deformation characterized by south-vergent folds. D4 Deformation D3—West-vergent fold-and-thrust belt resulted in the formation of mullion structures and strong on western continental margin of Trans- Hudson gneissic foliation in the margin of ~1.7-Ga plutons as well as orogen; extends length of uplift. a doming of the supracrustal rocks adjacent to the plutons. 2.1–1.98 Deformation D2—Intense folding on east-west Since publication of map I–2567 (Sims and others, axes and accompanying metamorphism; south- 1997), the Precambrian geology of the Guernsey and Case- vergent. Dated by Rb-Sr whole-rock and sphene bier Hills quadrangles, in the southern part of the Hartville methods on Flattop Butte Granite. Uplift, we have determined that the layered supracrustal ca. 2.0 Emplacement of mafic dike swarm in rift fractures. rocks throughout the Hartville Uplift, assigned to the Whalen Group, are Late Archean. On the earlier published 2.65 Crystallization of Rawhide Buttes and Flattop Butte map, we classified these rocks as being either Early Protero- Granite plutons. zoic or Late Archean. The Flattop Butte Granite, previously Deformation D1—Nappe Formation thought to date from 1.98 Ga but now known to be Late Archean (2.65 Ga), cuts and intrudes the layered rocks. Deposition of Whalen Group. Also, on the earlier map, we erroneously considered the ca 3.0 Crystalline basement, indicated by Sm-Nd ages. Rawhide Buttes Granite as basement to the Whalen Group. Instead, the basement is an unidentified crystalline sequence youngest, the deformation events are (1) inversion of (>2.8 Ga), as indicated by Sm-Nd isotopic data (see table 5). supracrustal succession (deformation D1), at least in parts of In this report, we use informal lithologic names to the uplift; (2) south-vergent folding of rocks on east-west describe the supracrustal rocks of the Whalen Group axes (D2) with concomitant prograde metamorphism; and (Smith, 1903). We propose the formal name "Rawhide (3) west-vergent folding on north-trending axes and accom- Buttes Granite" for the bodies of granitic rocks exposed at panying thick-skinned thrusting with concomitant prograde Rawhide Buttes (type area) and Rawhide Creek, west of the metamorphism (D3). A subsequent deformation event (D4) Hartville fault. This rock unit was previously called "Gran- was associated with post-tectonic intrusion of granites that ite of Rawhide Buttes" by Snyder (1980). We also propose resulted in doming of the supracrustal rocks. For the Guern- that the Granite of Flattop Butte of Snyder (1980) be for- sey quadrangle D2 is attributed to an older, Early Protero- mally named "Flattop Butte Granite." zoic unnamed orogeny (~1.98 Ga), that produced fold The term "terrane" is used herein in the same way as in nappe(s). Sims and others (1997) assigned the D3 deforma- the North American cordillera (Jones and others, 1977). It tion to the Trans-Hudson orogeny (THO; fig. 2) (post-1.8 comprises a distinctive crustal segment characterized by a Ga; Lewry and others, 1996). However, the absolute age of unique stratigraphy and structural style and is fault the D3 event is poorly constrained. To date, the effects of bounded. the 1.76-Ga Cheyenne Belt deformation, as recorded in the Laramie Range to the west and the Medicine Bow Moun- tains to the southwest (Resor and others, 1996) on the rocks STRATIGRAPHY of the Hartville Uplift are unknown.
Load more

Recommended publications
  • Geologic Resources Inventory Report, Fort
    National Park Service U.S. Department of the Interior Natural Resource Program Center Fort Laramie National Historic Site Geologic Resources Inventory Report Natural Resource Report NPS/NRPC/GRD/NRR—2009/161 ON THE COVER: THIS PAGE: View of Fort Laramie National Historic Site, The Laramie River was a part of life at Fort Lara- looking north across the Laramie River from its mie. Here officers’ children ride along the river, confluence with Deer Creek. Note how the c.1888. View is to the north. fort is situated on a river terrace. NPS image, Louis Brechemin Collection. Courtesy NPS image courtesy Baird Todd (NPS FOLA). Baird Todd (NPS FOLA). Fort Laramie National Historic Site Geologic Resources Inventory Report Natural Resource Report NPS/NRPC/GRD/NRR—2009/161 Geologic Resources Division Natural Resource Program Center P.O. Box 25287 Denver, Colorado 80225 December 2009 U.S. Department of the Interior National Park Service Natural Resource Program Center Denver, Colorado The National Park Service, Natural Resource Program Center publishes a range of reports that address natural resource topics of interest and applicability to a broad audience in the National Park Service and others in natural resource management, including scientists, conservation and environmental constituencies, and the public. The Natural Resource Report Series is used to disseminate high-priority, current natural resource management information with managerial application. The series targets a general, diverse audience, and may contain NPS policy considerations or address sensitive issues of management applicability. All manuscripts in the series receive the appropriate level of peer review to ensure that the information is scientifically credible, technically accurate, appropriately written for the intended audience, and designed and published in a professional manner.
    [Show full text]
  • SOLD! FIDDLEBACK RANCH Converse& Weston County, Wyoming
    2014 a proven track record by providing the highest level of assistance available. The following is a partial list of properties that sold in 2014 with Clark & Associates Land Brokers, LLC representing either the buyer or the seller. SOLD! FIDDLEBACK RANCH Converse& Weston County, Wyoming The Fiddleback Ranch is located in the Thunder Basin Grassland approximately 60 miles northeast of Douglas, Wyoming, and 54 miles southwest of Newcastle, Wyoming. There is approximately 18 miles of live water throughout the ranch from the Cheyenne River and Antelope Creek along with five tributary creeks. Improvements include two homes, a large heated shop, storage buildings, a barn, several additional sheds, and two sets of working corrals with two certified scales. List Price: $5,000,000 SOLD! CATO CLEAR CREEK RANCH Buffalo, Johnson County, Wyoming The Cato Clear Creek Ranch in north central Wyoming encompasses over 17,000 sprawling, productive acres near the beautiful Big Horn Mountains. The ranch consists of approximately 17,849 acres, with 12,023± deeded acres, 396± BLM lease acres, and 5,430± State of Wyoming lease acres. This fully improved, low overhead grass ranch, with its headquarters, working corrals, and scales easily accessible off U.S. Highway 16, is located 14 miles northeast of Buffalo, Wyoming. Over the last decade, management has significantly improved the water supply, fencing, and cross fencing which have contributed to the consistent weight gains and impressive breed back percentages, as the cattle seldom have to travel over one mile to access water. List Price: $7,190,000 SOLD! SMITH RANCH Springbrook, Williams County, North Dakota Comprised of approximately 1,115 deeded acres and 600 State lease acres, this productive cattle ranch lies in the heart of the Bakken Oilfield approximately 12 miles northeast of Williston.
    [Show full text]
  • Download PDF Here
    Chapter 4 Geologic overview Andrea M. Loveland 4-39 he Northeast River Basins (NERB) study area covers tuations until the final retreat of the seaway in the Late Tapproximately 14.86 million acres in northeast- Cretaceous. ern Wyoming, southeastern Montana, western South Dakota, and western Nebraska. The geologic setting of The Laramide orogeny commenced in the Late the NERB includes Precambrian-cored uplifts formed Cretaceous and continued through the Early Eocene. during the Laramide orogeny and adjacent basins filled Crustal shortening was accommodated by displacement with Phanerozoic clastic and carbonate rocks. The fol- of Precambrian crystalline basement rocks and the over- lowing information regarding the NERB study area is lying sedimentary cover rocks (Brown, 1993). Basement- provided in this chapter: cored Laramide structures border the NERB on three sides: 1) the Bighorn Mountains to the west, 2) the • An overview of the geologic history Black Hills to the east, and 3) the Rattlesnake Hills and Hartville Uplift to the south (fig. 4-1). • A summary of the structural geology • An outline of significant mineral and energy The geologic setting of the NERB study area is illustrated resources on the bedrock geologic map in plate 1. This map also displays surface water, highways, political boundaries, • Geologic cross sections and state and county data. Inset maps on plate 1 show the distribution of lineaments and a structure-contour map of the top of the Precambrian basement. Nine cross sec- 4.1 GENERAL GEOLOGIC HISTORY tions show subsurface structure in the NERB (figs. 4-2 through 4-11). Descriptions of the Precambrian- through During the Paleozoic Era, the area that is now the Tertiary-aged stratigraphic units exposed in the study NERB was located on the western margin of the North area are included in appendix A, and are not addressed American craton in a shelfal environment.
    [Show full text]
  • The Wyoming Greater Sage-Grouse Draft Land Use Plan Amendment
    Draft EIS Appendix G APPENDIX G—GRAZING ALLOTMENT DATA G.1 INTRODUCTION The following tables display the livestock grazing allotments for the Bureau of Land Management (BLM) and U.S. Forest Service (Forest Service) and the conditions of each allotment. For BLM, the allotments were evaluated using Land Health Standards in Manual 4180; for Forest Service, the allotments were evaluated using vegetation trends. G.2 BUREAU OF LAND MANAGEMENT GRAZING ALLOTMENTS Table G-1. Casper Field Office Allotments Date of Land Date Land Health Allotment Determination Causal Factors for Allotment Name Health Standards Number of Causal Standards Not Met Evaluation Met: Factor(s) Report Yes/No Riparian condition due to current livestock grazing 3 Buttes 10024 6/2006 6/2006 No Upland vegetation condition due to invasive, nonnative plant species Riparian condition due to current livestock grazing 6/2008 and 33 Mile SDW 01000 6/2008 and 2006 No 2006 Upland vegetation condition current livestock grazing 33 Mile SDW 01000 None None - None Upland vegetation condition due to 3T 10057 6/2006 6/2006 No invasive, nonnative plant species 55 Ranch 10114 None None - None 7X 00702 1/2011 1/2011 Yes All standards are met Adobe Hills 14121 None None - None Alcova 10043 None None - None Alcova Lake 10157 10/5/2001 10/5/2001 Yes All standards are met Allemand 10071 2/2008 2/2008 Yes All standards are met Antelope Creek 00459 None None - None Antelope Creek 2 31006 2/2008 2/2008 Yes All standards are met Antelope Gap 10306 None None - None Antelope Gap 2 10303 None None - None
    [Show full text]
  • File # 01Acc (Large Individual, Composite figure, Based Epicyon Haydeni «N
    AMNH BULLETIN Monday Oct 04 02:19 PM 1999 amnb 99111 Mp 2 Allen Press • DTPro System File # 01acc (large individual, composite figure, based Epicyon haydeni ´n. (small individual, based on AMNH 8305) and Epicyon saevus Reconstruction of on specimens from JackNorth Swayze America. Quarry). Illustration These by two Mauricio species Anto co-occur extensively during the late Clarendonian and early Hemphillian of western 2 1999 WANG ET AL.: SYSTEMATICS OF BOROPHAGINAE 3 CONTENTS Abstract ..................................................................... 9 Introduction .................................................................. 10 Institutional Abbreviations ................................................... 11 Acknowledgments .......................................................... 12 History of Study .............................................................. 13 Materials and Methods ........................................................ 18 Scope ...................................................................... 18 Species Determination ........................................................ 18 Taxonomic Nomenclature ..................................................... 19 Format ..................................................................... 19 Chronological Framework .................................................... 20 Definitions .................................................................. 21 Systematic Paleontology ....................................................... 21 Subfamily Borophaginae Simpson,
    [Show full text]
  • Fort Laramie National Historic Site Geologic Resources Inventory Report
    National Park Service U.S. Department of the Interior Natural Resource Program Center Fort Laramie National Historic Site Geologic Resources Inventory Report Natural Resource Report NPS/NRPC/GRD/NRR—2009/161 ON THE COVER: THIS PAGE: View of Fort Laramie National Historic Site, The Laramie River was a part of life at Fort Lara- looking north across the Laramie River from its mie. Here officers’ children ride along the river, confluence with Deer Creek. Note how the c.1888. View is to the north. fort is situated on a river terrace. NPS image, Louis Brechemin Collection. Courtesy NPS image courtesy Baird Todd (NPS FOLA). Baird Todd (NPS FOLA). Fort Laramie National Historic Site Geologic Resources Inventory Report Natural Resource Report NPS/NRPC/GRD/NRR—2009/161 Geologic Resources Division Natural Resource Program Center P.O. Box 25287 Denver, Colorado 80225 December 2009 U.S. Department of the Interior National Park Service Natural Resource Program Center Denver, Colorado The National Park Service, Natural Resource Program Center publishes a range of reports that address natural resource topics of interest and applicability to a broad audience in the National Park Service and others in natural resource management, including scientists, conservation and environmental constituencies, and the public. The Natural Resource Report Series is used to disseminate high-priority, current natural resource management information with managerial application. The series targets a general, diverse audience, and may contain NPS policy considerations or address sensitive issues of management applicability. All manuscripts in the series receive the appropriate level of peer review to ensure that the information is scientifically credible, technically accurate, appropriately written for the intended audience, and designed and published in a professional manner.
    [Show full text]
  • Appear in the Issues Included. Researchers in Wyoming History Will Find This to Be a Useful Source
    STAR VALLEY HISTORICAL SOCIETY HISTORICAL BOOKS INVENTORY DETAILS 1. Overview Title: Annals ofWyoming Index III Author: Katherine A. Halverson Subject: Wyoming Publisher: Wyoming State Archives and Historical Department Publishing Date: 1976 Number of Pages: 91 ID#: 622 Location: Website 2. Evaluation Evaluator's Name(s): Kent and Polly Erickson Date of Evaluation: March 2015 Key Words: Included Names: 3. Svnopsis This index covers Volumes 32 through 46 for the years 1960 - 1974. It has an alphabetical list of names, events and locations, with page and volume numbers, that appear in the issues included. Researchers in Wyoming history will find this to be a useful source. 4. Other Me^c Volume III of Wyoming VOLUMES 32 Through 46 1960 - 1974 WYOMING STATE ARCHIVES AND HISTORICAL DEPARTMENT CHEYENNE, WYOMING 19 7 6 hdcfc Volume III Mudls of Wyommg VOLUMES 32 THROUGH 46 1960 - 1974 Published By WYOMING STATE ARCHIVES AND HISTORICAL DEPARTMENT Compiled andEdited Under Supervisioh of KATHERINE A. HALVERSON Director, Historical Research andPublications Division KEY TO INDEX AND ABBREVIATIONS Adj., Adjutant Gen., General Pres., President Agii., Agriculture Gov., Governor Pvt., Private Assn., Association Govt., Government R. R., Raflroad biog., biography Hon., Honorable re, regarding, relative to Brig., Brigadier Hist., History Reg., Regiment Bros., Brothers la., Iowa Rev., Reverend Bvt, Brevet Ida., Idaho Sec., Secretary Capt., Captain lU., Illinois Sen., Senator Cav., Cavalry illus., illustration Sess., Session Co., Company Jr., Junior Sgt., Sergeant Col., Colonel Kan., Kans., Kansas S. D., So. Dak., South Dakota Colo., Colorado Lieut., Lt., Lieutenant Sr., Senior Comm., Commission Maj., Major St., Saint Cong., Congressional Mo., Missouri Supt., Superintendent Cpl., Corporal Mont., Montana T., Ten., Territory Dept., Department Mt.
    [Show full text]
  • Marshall, Mrs
    This book can be found in the High Density Rolling Shelves - SEE ' CHAFFIN' @ THE Wyoming Room – Sheridan County Fulmer Public Library – 335 West Alger – Sheridan WY 82801 (307-674-8585 x 7) Sons of the West SONS OF THE WEST Lorah B. Chaffin Caxton Printers 1941 Indexed July 2002 -- A -- Bartlett, Mrs. I. S. 267 Battle of Bear Town 103 Aber, Doff 225 Battle of the Little Big Horn 117, 223 Abert, Colonel 44 Battle of the Rosebud 88 Afro-American Club 261 Baxter, George W. 235 Albany County 117 Beadle, J. H. 94 Alcova, Wyoming 281 Bear River City 103 Alder Gulch, Montana 134, 174 Bear River Valley 103 Almy, Wyoming 101 Beard, Mrs. Cyrus 102-104 American Cattle Producer 132 Becker, Charles 168 American Fur Company 38, 40 Beckwourth, Jim 36 American Legion 228 Beers, Robert M. 111 American Security Company 128 Bennett, Hugh 225 Ames Monument 101 Benson’s Landing 175 Annals of Wyoming 102, 151 Bentley & Zullig Real Estate 208, 214 Apache Indians 86-87 Bentley, J. J. 214-215 Ardmore, South Dakota 140 Benton, George W. 218 Arnold, Captain 74 Jessie 44 Arp & Hammond 262 Thomas 44 Arthur, Chester A. 232 Virginia Belle 218 Ashley, William Henry 36-37 Benton, Wyoming 101, 102, 125 Askins, Bob 225 Big Goose Creek 88, 170, 179, 181, 183 Associated Press 160 Big Goose Ditch Company 196 Astorians 30, 280 Big Horn Basin 26-27, 68 Atlantic City, Wyoming 102 Big Horn River 27, 30, 34 Augur, Major 95 Big Horn Sentinel 168 Big Horn, Wyoming 168, 177-178, 180, -- B -- 193p, 195-196, 212-213, 204, 207, Baker, James 40-42 216, 219, 224p, 225 Nathan A.
    [Show full text]
  • The Precambrian of the Rocky Mountain Region
    BUReAU Of MINIS - UBRARY LIBRARY IIOKANE, WASH U. 5. BUREAU OF MINES · UAN 71~87 I Weste:rn Field Operat•on Center . ··\ · D IUA5E ~ET UR~'­ E~~t 3CO 3rd Ave. \· IQ UBlAR't Spokan~, Wa;.hington 99202 The Precambrian of the Rocky Mountain Region U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1241-D'-' The Precambrian of the Rocky Mountain Region By CARL E. HEDGE, ROBERTS. HOUSTON, OGDEN L. TWETO, ZELLE. PETERMAN, JACK E. HARRISON, and ROLLAND R. REID CORRELATION OF PRECAMBRIAN ROCKS OF THE UNITED STATES AND MEXICO Edited by JACK E. HARRISON and ZELLE. PETERMAN U.S. GEOLOGICAL SURVEY PROFESS I ON AL PAPER 1241-D Lithology, distribution, correlation, and isotope ages of exposed Precambrian rocks in the Rocky Mountain region UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1986 DEPARTMENT OF THE INTERIOR DONALD PAUL HODEL, Secretary U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director Library of Congress Cataloging in Publication Data The Precambrian of the Rocky Mountain region. (Correlation of Precambrian rocks of the United States and Mexico) (U.S. Geological Survey professional paper ; 1241-D) Bibliography: p. 1. Geology, Stratigraphic-Pre-Cambrian. 2. Geology-Rocky Mountain Region. I. Hedge, Carl E. II. Se~es. III. Series: Geological Survey professional paper; 1241-D QE653.P734 1986 551.7'1'0978 86-600168 For sale by the Branch of Distribution Books and Open-File Reports Section U.S. Geological Survey Federal Center Box 25425 Denver, CO 80225 CONTENTS Page Abstract . 1 Introduction . 1 Archean rocks of Wyoming and southern Montana 3 Early Proterozoic metasedimentary rocks of southeastern Wyoming and the Black Hills, South Dakota .
    [Show full text]
  • Section 6 Southeast Area Including Cheyenne, Laramie, Torrington, Wheatland, Lusk and Glenrock
    SECTION 6 SOUTHEAST AREA INCLUDING CHEYENNE, LARAMIE, TORRINGTON, WHEATLAND, LUSK AND GLENROCK resulting Indian troubles had been settled in the white man’s favor, the fort became a stage stop on the Cheyenne to Deadwood Stage Route and then S became known as Hat Creek Station. The general T OUTHEAST store/roadhouse built in the 1880s, after the origi- ORRINGTON nal building burned, still stands, and the entire station is in the process of being restored. The site is located about 15 miles northeast of Lusk off US Highway 18-85. A , W REA H Fort Hat Creek HEATLAND About 14 mi N of Lusk on U.S. Hwy 18/85 I NCLUDING In 1875 soldiers went from Fort Laramie to estab- lish an outpost on Hat Creek in Nebraska. Confused, they bilt a fort of logs on Sage Creek in Wyoming. The gold rush to the Black , L C USK AND Hills started the Cheyenne-Deadwood Stage HEYENNE Route in 1876. Bullwhackers freighting salt pork and whiskey to Deadwood, armored coaches hauling gold G bricks and passengers to Cheyenne, Indians, and , L LENROCK road agents brought adventure to Hat Creek Stage ARAMIE station. A two story log structure was built near the fort for a telegraph station, post office, black- smith shop, hotel and store. This building, still standing and used as a , ranch home, is two miles east and one mile south. Source: Wyoming Recreation Commission. Food, Lodging State Capitol Building 4 Lusk Creek. The fort also known as Camp Hat Creek, Pop. 1,447, Elev. 5,015 1 No services was built by the Army in 1875, under the leader- As the county seat of the least populous county in Redbird ship of Captain James Egin on the banks of Sage Wyoming, Lusk contains over half of the people Creek.
    [Show full text]
  • Land Resource Use Plan and Policies
    22001155--22002200 NNiioobbrraarraa CCoonnsseerrvvaattiioonn DDiissttrriicctt LLaanndd && RReessoouurrccee UUssee PPllaann aanndd PPoolliiccyy Board of Supervisors: Kevin Gaukel Matt Dockery Mark Groh Terrance Browder Dale Jordan Niobrara Conservation District PO Box 659 Lusk, WY 82225 307-334-9957 2 | P a g e TABLE OF CONTENTS INTRODUCTION......................................................................................................................... ……..5 OVERVIEW ....................................................................................................................................... 5 AUTHORITY ...................................................................................................................................... 6 LEGISLATIVE DECLARATIONS ............................................................................................................ 6 PRIMARY COORDINATION GUIDELINES ............................................................................................6 DISTRICT DESCRIPTION ........................................................................................................ ………….9 NIOBRARA COUNTY ........................................................................................................................ 10 History ........................................................................................................................................ ....10 Location .......................................................................................................................................
    [Show full text]
  • Wyoming Road Trip by the Mile Marker
    Available at Amazon.com BROOK BESSER WYOMING ROAD TRIP BY THE MILE MARKER Travel guide to Yellowstone/Grand Teton National Park, Devils Tower, Oregon/Mormon Trail, badlands, petroglyphs, waterfalls, camping, hiking, tourism and more... Brook Besser NightBlaze Books Golden, Colorado Copyright © 2010 by Brook Besser All rights reserved. No part of this book may be reproduced or transmitted in any form by any means, electronic or mechanical, including photocopying and scanning, or stored in any information storage and retrieval system, without the express consent of the author. ISBN 978-0-9844093-0-3 Library of Congress Control Number: 2010923145 Manufactured in the United States of America WARNING! NightBlaze Books and the author assume no responsibility or liability for any damages, losses, accidents, or injuries incurred by readers who visit the attractions or engage in the activities described in this book. It is the reader’s responsibility to be aware of all risks and take the necessary precautions to handle those risks. The! suggestions and "Cool Ratings" in this book are strictly the author's opinion, and expressed to help you make a decision on whether to visit an attraction. You are responsible for making your own judgment on the worthiness of an attraction. Special thanks to the following people: My wife Mianne who accompanied me for 5 weeks in Wyoming and supported my endless hours working on this book; my brother Brant and my daughter Brianna who each spent a week out on the road with me; my brother Brett who helped with my book summaries; my sister-in-law Sue who proofed many pages of the book; and the rest of my family for their support.
    [Show full text]