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| Vanadium-Uranium Deposits of the Rifle Creek Area, Garfield County, Colorado By RICHARD P. FISCHER With a...1910Vanadium-uranium deposits of the Rifle Creek area, Garfield County, Colorado, by Richard P. Fischer. With...ores-Colorado-Garfield Co. I. Botinelly, Theodore, 1916II. Title: Rifle Creek area, Garfield County, Colorado...the Rifle Creek area, Garfield County, Colo. 2. Fracture-pattern map of the .Rifle and Garfield mines...mines showing structure contours in the Rifle mine. 3. Map showing the trends of ore rolls and the approximate |
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| abnormalamountsof selenium. The selenium content of the pyrite, marcasite, and chalcociteis much greater than...of the Colorado Plateau uranium depositsthe maximum amount of Se substituting for S in the pyrite structurewas...associated withthe unoxidized orebodiesfrom the Colorado Plateau and was chosen as the best mineral to...equalto or lessthan 10,000the deposit containing pyrite and/ormarcasite maybe of hydrothermal origin. Applyingthisconcept...centrifuged in bromoformto removethe lighter gangue. For pyrite and marcasitefurther purificationof the concentratewas |
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| '^December ' * GEOLOGY *OF TEE MILE CHEEK VAH^DIIM AREA, GARHELD GOIMT, COLOEAiX) i .- U£ - - - «-....the -Eifle,. and Garfield mines, about. 13 miles northeast of Rifle, Garfifeid County,. Colo* - -She"deposit...-She"deposit at the Rifle mine has-been the most proiictiv^e JQ£ iihe/vanadium^bearing sandstone, type of...fonnation in the area «hown on the icap^nd 4ia...the : adjoining: area to .the .east. - 2he total production...: deposits Ti.s .abput '500,0.00 tons. | * The area;ito";exami5i^.and: :mapp"e |
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| associated with the vanadium-uranium deposits of the Colorado Plateau has revealed that a complete natural solid...50 ppm to 1.5per cent Sein galenafrom the Boliden mine, Sweden,but the unit cell was not determinedon these...167 Within the collection of sulfides from the Colorado Plateau uraniumvanadium deposits analyzed for...are well developedin the Rifle and Garfieid mines, Garfield County, Colorado, where the majority of the...in the Bear Creek mine, San Miguel County, and Good Hope mine, La Plata County, Colorado (Table 1). The |
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| Oxidized Zinc Deposits of the United States Part 3. Colorado By ALLEN V. HEYL GEOLOGICAL SURVEY BULLETIN...deposits and the resources of oxidized zin.c ores in Colorado UNITED STATES· GOVERNMENT PRINTING OFFICE, WASHINGTON...19180xidized zinc deposits of the United States. Part 3. Colorado. Washington, U.S. Govt. Print. Off., 1964. vi...Bibliography : p. 88-91. 1. Zinc ores-Colorado. 2. Zinc mines and mining-Colorado. I. Title. (Series) For sale...district________________________________________ Garfield County_______________________________________________ |
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| formation ........................ The southwest Colorado region ............................ Silver Reef...StatesVanadiumCorporation,Mr. Frank Wilson of Naturita, Colorado,and Mr. S. G. Lasky of the United States GeologicalSurvey...time existedin the Morrison rocks" = in western Colorado and eastern Utah. Recordsplaceproductionat Silver...sandstone Placerville, Colo. (i9o9-I923) ........... Rifle, Colo. (I925-i932) ............... Estimate. 3... p. 586, x92o. 4 Henderson, C. W.: Mining in Colorado. U.S. P. 47, x926. Geol. Surv. Prof. Paper x38 |
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| . 234 " y { " ,-t .. .~,:",. I " , COLORADO "or.! _ +, (~ STATE OF .~ :'(' COL~ADO /... BULLETIN 40 RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BlaLlllGRAPHY by James L. Nelson-Moore,...Energy COLORADO GEOLOGICAL SURVEY DEPARTMENT OF NATURAL RESUURCES STATE OF COLORADO DENVER, COLORADO 1978...ete 11 st r ng of rad i aaet 1ve occurrences 1n Colorado, with a comprehensive blbi iography and bibliographic...association of radium, uranium. and vanadIum on the Colorado Plateau sparked several periods of exploratIon |
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| Utah 5 Lance Creek, Wyoming 5 Lone Tree deposit, San Rafael Swell, Utah 5 Maybell, Colorado 5 Palangana...Limestone Member of the Wanakah Formation of the Grants area, New Mexico 6 Geology of uranium occurrences that...petroliferous materials 7 Carlsbad, New Mexico 7 Chalone Creek, California 7 Edna, California 7 Ellis, Missouri...Morrison Formation of the Grants area, New Mexico 9 Rifle Creek, Colorado 9 Shirley Basin, Wyoming 10 White...associations with petroliferous materials 10 Anderson mine, Date Creek Basin, Arizona 10 Cameron, Arizona 10 Edgemont |
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| ................................ 241 Rifle deposit,Colorado ................................................................. Uravan mineral belt, Colorado ...................................... 242 242...thesisseemto be basedon depositson the Colorado Plateau in Colorado and Utah, and a few statements refer...is light greenishgray and contains virtually no pyrite; unalteredsandstoneis light gray and containsabout...origin is not related to Recent events. Rifle Deposit,Colorado.--Orerolls describedby Fischer (6) in thick |
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| Geochemistry and Mineralogy of the Colorado Plateau Uranium Ores Compiled by ROBERT M. GARRELS and ESPER...provided an unequaled opportunity to investigate the Colorado Plateau uranium ores. This volume summarizes the...uranium deposits than those represented on the Colorado Plateau. The general patterns of the oxidation...Introduction. 1 Part 1. Geologic setting of the Colorado Plateau ores, by Alice D. Weeks and R. M. Garrels________...of the uranium deposit at the Happy Jack mine, San Juan County, Utah, by Albert F. Trites, Jr., Randall |
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| CIRCULAR 215 URANIUM IN THE METAUMINING DISTRICTS OF COLORADO UNITED STATES DEPARTMENT OF THE INTERIOR Douglas...215 URANIUM IN THE METAL-MINING DISTRICTS OF COLORADO By R. U. King, B. F. Leonard, F. B. Moore, and...C. URANIUM IN THE METAL-MINING DISTRICTS OF COLORADO By R. U. King, B. F. Leonard, F. B. Moore, and...showing the distribution of uranium deposits in Colorado. Relation of pitchblende deposits to bostonite...bostonite dikes in the Front Range mineral belt, Colorado .......................... Relation of pitchblende |
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| meteoricin origin) in Mesozoicsedimentsof the Colorado Plateau area were reducedby anerobic bacteria to hydrogen...N Du•xNG the summerof 1955, a few specimens of pyrite and marcasitewere collectedfrom uranium depositsin...depositsin the Monticello mining district, San Juan County, Utah. The Sa2/Sa4 ratios of these sampleswere subsequentlynot...centrifugedin bromoformto removethe lighter gangue. For pyrite and marcasite,further purificationof the concentratewas...Morrison Uravan District, pyrite North Formation Montrose County, Colorado Star mine: mineralized sandstone |
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| SURVEY Papers presented April 27-28, 1977, at the Colorado School of Mines, Golden CIRCULAR 753 United...Conference was held April 27 and 28, 1977, at the Colorado School of Mines, Golden. This was the second conference...writing to Box 25046, Denver Federal Center, Denver, Colorado 80225. Authors stationed in Reston, Virginia,...pyroxenite dikes in nepheline syenite of the Ekiek Creek pluton, western Alaska, by Alan R. Wallace and John...John W. Cady A theory for the origin of the Rifle-Garfield vanadium-uranium deposit, by C. S. Spirakis |
 | Wallace, A.R., Ludington, Steve, Lovering, T.G., Campbell, D.L., Case, J.E., Grauch, V.J.S., Knepper, D.H. (1988) Leadville 1 degree x 2 degrees Quadrangle, Colorado; a pre-assessment. Open-File Report Vol. 1988 (88-74) US Geological Survey doi:10.3133/ofr8874 | Report (issue) |
| GEOLOGICAL SURVEY Leadville I°x2° quadrangle, Colorado: a pre-assessment by Alan R. Wallace , Steve...standards and stratigraphic nomenclature. Denver, Colorado -Menlo Park, California CONTENTS Page Preface...the Leadville I°x2° quadrangle in west-central Colorado under the Conterminous United States Mineral Resource...in west-central Colorado in the heart of the southern Rocky Mountains (fig. 1). The area combines a complex...understanding of mineral deposits. The proposed study area is underlain by a lithologically and structurally |
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| 1990). Estimatesof the ageof ore formation on the Colorado Plateau indicate that the solution interfac.... Uraniumdepositshostedby Jurassicrockson the Colorado Plateauhavebeen dated usingU-Pb isotopesystematics...Wash Member of the JurassicMorrisonFormationin Colorado and Utah formed during the Early Cretaceous(110...is uncertain becausethe Entrada is Miguel County, Colorado,was chosenfor this investiga- coveredor missing...red to light pink Entrada Sandstone.The Leopard Creek placedduringthe Laramideorogeny(Bushet al., 1959 |
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| of the Piceance Creek Basin Between the Colorado and White Rivers Northwestern Colorado By JOHN R. DONNELL...__--_---_--_-__-_-----_-----___-_-------_-__.____--Location of area..._-_-_-_--__-------_-_-___-_-_-_-___-________ Purpose...series_--___-_-_-_-_-_-_-_-_-_______.________ Ohio Creek conglomerate.______________________________ Paleocene...............................iL.. 847 Douglas Creek member______________________!____ Garden Gulch ...member. _____________________________ Parachute Creek member_________i_________________ Lower and middle |
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| Ranger District of the Arapaho National Forest, Colorado U.S. GEOLOGICAL SURVEY BULLETIN 2035 Mineral...Ranger District of the Arapaho National Forest, Colorado By MARGO I. TOTH, ANNA B. WILSON, THERESA M. COOKRO...Ranger District of the Arapaho National Forest, Colorado / by Margo I. Toth ... [et al.]; with a section...mineral resources Colorado White River National Forest. 2. Mines and mineral resources Colorado Arapaho National...National Forest. 3. Geology Colorado White River National Forest. 4. Geology Colorado Arapaho National Forest |
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| Bibliography and Index of Colorado Geology 1983 by Atnerican Geological Institute Colorado Geological Survey...Resources Denver, Colorado I 1987 Information Series 21 BIBLIOGRAPHY AND INDEX OF COLORADO GEOLOGY 1983...Geological Institute Colorado Geological Survey Department of Natural Resources Denver, Colorado 1987 The Colorado...opportunity employer. ii BIBLIOGRAPHY AND INDEX OF COLORADO GEOLOGY SERIALS LIST AAPG Bullett n. [Tulsa...Institute of Arctic & Alpine Research, University of Colorado, 1969-. ASTM Special Technical Publication= American |
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| diagenesis of a tabular uranium deposit, La Sal mine, San Juan County, Utah By Robert A. Brooks and John A. Campbell...Results Vanadium and uranium Selenium Molybdenum Pyrite Carbon Chromium Other elements Summary of Results...La Sal mine area, San Juan County, Utah -- 3 2.--Generalized structural map of the La Sal mine and La...La Sal Creek Mineral Belt 4 3.--Uranium and vanadium content of samples 6 4.--Heavy mineral content...--Iron content of samples - 22 10.--Late-stage pyrite formation 23 11.--Carbon content of samples |
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| Series 30 Bibliography and Index of Colorado Geology, 1984-1989 Colorado Geological Survey Department of...Resources Denver, Colorado 1990 Information Series 30 Bibliography and Index of Colorado Geology, 1984-1989...Institute under contract to the Colorado Geological Survey Colorado Geological Survey Department of...of Natural Resources Denver, Colorado 1990 ii FOREWORD In recognition of the need to more effectively...published literature on the state's geology, the Colorado Geological Survey is pleased to release Information |
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| Survey, Box 25046, Denver Federal Center, Denver, Colorado 80225 U.S.A. CONTENTS MINERALOGY/PETROLOGY ...a Fault-Controlled Cave in Precambrian Gneiss, Colorado Front Range by Peter J. Mbdreski, Earl R. Verbeek...Monodisperse Colloids from a Stream Contaminated by Acid Mine Drainage by Kathleen S. Smith, James F. Ranville...Relationships, K-Ar Ages, and Isotopic Data from the Willow Creek Gold Mining District, Southern Alaska by Dawn J.............................. Reconnaissance of Colorado Front Range Bogs for Uranium and Other Elements |
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| Germany)............. German Democratic Republic (East Germany).......... Greece.........................(Malagasy or Malagasa)........................... Near East............................................... India.............................................. Far East...................................................Lake-Blind River area, Canada (average grade 0.12 percent U30s), and at the Witwatersrand basin area in the Republic...mining; and in medium-grained sandstones in the Colorado Plateau, U.S.A. (average grade 0.2 percent U30g) |
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| from sandstone-type deposits such as those on the Colorado Plateau. In other parts of the world most uranium...Witwatersrand of South Africa and the Blind River area of Ontario, Canada, and from vein-type deposits...been from sandstone-type uranium deposits on the Colorado Plateau where the bulk of uranium ore has been...of deposits and occurrences of uranium on the Colorado Plateau. The U. S. Geological Survey Bulletin...basis of permanent value or interest. Because the Colorado Plateau is the center of the uranium mining industry |
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| the Green River Formation in the Piceance Creek Basin, Colorado By Roy-L. Griggs Open-file report 1968...Historical summary Purpose of this investigation Area studied 1 2 2 3 - 3 Methods of investigation...Formation The altered ash-fall beds of the Parachute Creek Member General characteristics Key beds and groups...Outline of the part of the Piceance Creek Basin between the Colorado and White Rivers. Columnar sections...map of Colorado showing location of Piceance Creek Basin Diagrammatic sketch from west to east across |
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| DIRECTOR BULLETIN 415 COAL FIELDS OF NORTHWESTERN COLORADO AND NORTHEASTERN UTAH BY HOYT S. GALE WASHINGTON................................................ Colorado Plateau.........................................section .................................. 56 Coal Creek section.................................... 56 Cretaceous..................................... 104 Douglas Creek uplift.............................................:..... 107 CHAPTER III. Grand Hogback field, Colorado................................. 109 Outline and |
