 | | Journal (article/letter/editorial) | | MINOR CHEMICAL ELEMENTS IN FLUORITES FROM JAMESTOWN, COLORADO Josnrn M. Bnev, LafayetteCollege,Eoston,Pennsylaania'...Drsrnrcr The Jamestown district is located in Boulder County, Colorado, 10 miles northwest of Boulder, 35 miles...po@tltr Frc. 1. Geological sketch map of the Jamestown area, showing locations of samples. The writer...chemical elements in the igneousrocks of the Jamestown district. Tnr Fr,uonrrn DBposrrs Goddard (op. cit...barren breccia zones. other mineral deposits in the district (all younger than the fluorite deposits) are lead-silver |  | | Report (issue) | | Babe RIAREAN Shae YE ULUe ULUNIVOIIT oni BOULDER, COLO, NO sections PRICEL tLe y eg Digitized...org/details/fluorspardeposito00Oharr COLORADO GEOLOGICAL SURVEY BOULDER R. D. GEORGE, State Geologist ... BULLETIN 18 FLUORSPAR DEPOSITS COLORADO By HARRY KAMES A. AURAND BROTHERS, STATE 1920 PRINTERS...-...- Governor of Colorado GEORGE UNORLING nee ee President University of Colorado VicCTOR Ct A LDERGONG...TRANSMITTAL. State Geological Survey, University of Colorado, April 29, 1920. Governor Oliver H. Shoup, Chairman |  | | Report (issue) | | Mineral Belt Gilpin and Clear Creek Counties. Colorado GEOLOGICAL SURVEY PROFESSIONAL Prepared on...Mineral Belt Gilpin and Clear Creek Counties, Colorado By E. W. TOOKER GEOLOGICAL SURVEY PROFESSIONAL...mineral belt, Gilpin and Clear Creek Counties, Colorado. Washington, U.S. Govt. Print. Off., 1963. v,...Counties, Colorado. 1963. (Card 2) 1. Geology Colorado Front Range. 2. Petrology Colorado Front Range...Range. 3. Ore deposits Colorado. 4. Mineralogy Colorado Front Range. 5. Metamorphism. I. Title. (Series) |  | | Report (issue) | | Geology and Ore Deposits of the Front Range Colorado By T. S. LO\'ERING and E. N. GODDARD GEOLOGICAL...cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund ~ oopr is...__________________________________________ _ 1 Summary of mining districts---.---------------------Introduction..._ Quartz diorite and associated hornblendite_ Boulder Creek granite _________________ _ Pikes Peak granite...Pre-Cambrian deposits _________________________ _ Mine descriptions __________________________ _ 39 39 |  | | Journal (issue) | | Flatirons Facets Flatirons Mineral Club of Boulder County, Colorado Volume 66, Number 4 July-August, 2023...members learn about Colorado’s mining history during a tour of the Phoenix Mine outside of Idaho Springs....report: CU Boulder Map Library, page 6 Field trip report: Phoenix Gold Mine and the Argo Mill & Tunnel...Tunnel, page 7 Double header mine report, page 10 Field trip report: A weekend in South Park, page 13...area of Colorado, Utah, New Mexico, and Arizona. In March I attended a lecture at the Colorado School |  | | Journal (article/letter/editorial) | | with its representation of mining tools clearly proclaim Montana’s mining origins. Montana’s production...published describing the occurrence, collecting, mining, and cutting of the two state gemstones. Figure...2. Granville Stuart established Montana’s first mining camp at Gold Creek in 1860. Geologic Provinces...MICHAEL J. GOBLA 19055 East Bethany Place Aurora, Colorado 80013 gobla@copper.net Unless otherwise noted...view showing the Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded |  | Alford, Lee, Gysi, Alexander P., Hurtig, Nicole C., Monecke, Thomas, Pfaff, Katharina (2020) Porphyry-related polymetallic Au-Ag vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace element chemistry. Ore Geology Reviews, 119. 103295 doi:10.1016/j.oregeorev.2019.103295 | Journal (article/letter/editorial) | | polymetallic Au-Ag vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace element...polymetallic AuAg vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace element...polymetallic Au-Ag vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace element...Department of Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden...submitted to Ore Geology Reviews 1 ABSTRACT The Colorado Mineral Belt is a ~500 km long segment of calc-alkaline |  | | Report (issue) | | Deposits of the Chicago Creek Area Clear Creek County Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 319 This...Deposits of the Chicago Creek Area Clear Creek County Colorado By J. E. HARRISON and J. D. WELLS GEOLOGICAL...deposits of the Chicago Creek area, Clear Creek County, Colorado, by J. E. Harrison and J. D. Wells. Washington...Geology Colorado Clear Creek Co. 2. Ore deposits Colorado Clear Creek Co. 3. Petrology Colorado Clear Creek..._---_-__-_--__________-____________--. History of the district-______________________________ General geology |  | | Report (issue) | | Geology of Precambrian Rocks Central City District Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 474-C... Geology of Precambrian Rocks Central City District Colorado By P. K. SIMS and D. J. GABLE SHORTER CONTRIBUTIONS...1918Geology of Precambrian rocks, Central City district, Colorado, by P. K. Sims and D. J. Gable. Washington...City district, Colorado. 1964. (Card2) 1. Geology, Stratigraphic Pre-Cambrian. 2. Geology Colorado Gilpin...diorite and horn blendite. ______-_.-__ Biotite- muscovite granite. _________----_____ Origin of intrusive |  | | Report (volume) | | Geology of Uranium Deposits in the Front Range, Colorado By P. K. SIMS and D. M. SHERIDAN With sections...______________ Boulder CountY----------------------------------~-----------Jamestown district_______...Generalfeatures--------------------------------------Blue Jay mine, by R. U. King__________________________ Fair Day...mine________________________________________ Nations Treasure mine, by R. U. King___________________ Victory group...IV Description of principal mines-Continued Boulder County-Continued Other areas __________________________ |  | | Report (issue) | | Economic Geology of the ·central City District .Gilpin County, Colorado By PAUL K. SIMS, A. A. DRAKE, ]R....Economic geology of the Central City district, Gilpin County, Colorado, by Paul K. Sims, A.A. Drake,. Jr...Central City district, Gilpin County, Colorado. 1963. (Card 2) 1. Geology, Economic-Colorado-Central City...City district. 2. Ore-deposits-Colorado-Central City district. 3. Mines and mineral re. sources-Colorado-Central...sources-Colorado-Central City district. I. Drake, Avery Ala, 1927joint author. II. Tooker, Edwin Wilson, 1923- joint |  | | Journal (article/letter/editorial) | | Murfreesboro, Pike Co., Ark. This is in the cinnabar district of Howard, Pike, and Clark Counties, Ark. This...Modesto, Calif. Both specimens come from an old Gold mine at Placerville, El Dorado Co., Calif. The following...when cut into cabachon, ashtrays and bookends." COLORADO — A most interesting specimen of small canary-yellow...yellow under long wave light, small colorless muscovite xls; tiny slender green gemmy tourmaline xls,...by Seymour F. Dozier, Red Oak, Route 1, Fulton County, Georgia. Large lumps of this material can be picked |  | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | | Report (issue) | | AND MINING WASTES NOTES FROM A WORKSHOP PRESENTED AT THE INTERNATIONAL LAND RECLAMATION AND MINE DRAINAGE... Predicting Water Contamination from Metal Mines and Mining Wastes O^ggg^C. Kathleen S. Smith, Ph.D. Geoffrey...80225 Workshop 2 International Land Reclamation and Mine Drainage Conference and the Third International... Predicting Water Contamination from Metal Mines and Mining Wastes FOREWORD This report contains copies of...presented at the International Land Reclamation and Mine Drainage Conference and the Third International |  | | Report (issue) | | oresofo0000kell Telluride Ores of Boulder County, Colorado The Memoir Series of The Geological...America, Inc. Memoir 109 Telluride Ores of Boulder County, Colorado WILLIAM C. KELLY EpwINn N. GODDARD Department...SOCIETY OF AMERICA, INC. Colorado Building, P.O. Box 1719 Boulder, Colorado 80302 Printed in the United...assembling a representative collection of the Boulder ores. Dr. T. S. Lovering of the U.S. Geological...and numerous ore samples were donated by local mining men, particularly Fred Dopp, H. M. Williamson, |  | | Book (volume) | | vacation stops at a roadside “dig your own” gem mine. Junior finds a sapphire the size of a peach and...) Many an unsuspecting tourist has stopped at a mine to try his or her luck and become a rockhound for...States VOLUME 2 Alaska Idaho Arizona California Colorado lowa Minnesota Montana Hawaii Kansas Nebraska...VOLUME 4 Northeast States Connecticut Delaware District of Columbia Illinois Indiana Louisiana Maine...U.S.A. 4TH EDITION Where & How to Dig, Pan, and Mine Your Own Gems & Minerals VOLUME 2: SOUTHWEST STATES |  | | Report (issue) | | deposit. Table 4, part B, gives an alphabetic list of mine and properties followed by the deposit name. CHARACTERISTICS...deposits used in Table 1 may represent a major mine, district name, or local town name or other prominent... Pyrrhotite appears to be been reported in just a single mine in the East Belt of the Sierra Nevada foothills...(Malcolm, 1912), galena was widely considered by mine operators to be correlated with better gold grades...was described in a carbonate quartz veinlet in one mine in the Mother Lode system (Knopf, 1929). Method |  | | Report (issue) | | GEORGETOWN QlJADRANGLE (TOGETHER 'VITH THE EMPIRE DISTRICT) COLORADo· BY JOSIAH E. SPURR AND GEORGE H. GARREY..................._.......... . Distribution in Colorado ................................................_,_........................ 102 Extension from Boulder beyond Leadville .. , ...... _._._........................................... . 102 Ores in Boulder County.............. . . . . . . . . . . . .........103 Ores in Gilpin County ............................ . 103 Orcs in Clear Creek County ............... |  | | Book (edition) | | MILEAGE L OGS. REVISED EDITION Revised Edition, COLORADO GEM TRAILS AND MINERAL GUIDE HICllAHD :--1. PEARL...an extensive ¥em and mineral collecting tour 01 Colorado, revealing the interesting places where Nature...Swallow, Publisher) 2679 South York Street Denver, Colorado 80210 - , =· - ·, BOOKS BY RICHARD M. PEARL...PEARL Exploring Rocks, Minerals, Fossils in Colorado America's Mountain: Pikes Peak and the Pikes Peak...Atlas of Colorado American Gem Trails Nature As Sculptor: A Geologic Interpretation of Colorado . Scenery |  | | Book (edition) | | — _ ; COLORADO GEM TRAILS AND MINERAL GUIDE ! ■ : ' BOOKS BY RICHARD M. PEARL Colorado Gem Trails...Trails and Mineral Guide Colorado Rocks, Minerals, Fossils America’s Mountain: Pikes Peak and the Pikes...Nature As Sculptor: A Geologic Interpretation of Colorado Scenery Guide to Geologic Literature Popular Gemology...Gemology Mineral Collectors Handbook Colorado Gem Trails The Art of Gem Cutting (With Dr. H. C. Dake)...Dake) * RICHARD M. PEARL ★ COLORADO GEM TRAILS AND MINERAL GUIDE ★ SKETCH MAPS BY MIGNON WARDELL PEARL |  | | Report (issue) | | predecessor organization, the Manhattan Engineer District ; and, to a lesser extent, by staff members of...United States. The pre-1940 history of uranium mining and geology is concerned largely with veins in...areas as the Front Range mineral belt of Colorado; the Boulder batholith area, Montana ; the Sierra Ancha...Marysvale district, Utah. All the Western States, including Arizona, California, Colorado~ Idaho, Montana...comments on the history of uranium geology and mining. The other chapters deal principally with pertinent |  | Van Alstine, R. E., Worl, R.G., Heyl, A.V., Trace, R.D., Parker, R.L., Griffitts, W.R., Sainsbury, C.L., Cathcart, J.B. (1976) Geology and resources of fluorine in the United States. Professional Paper 933. US Geological Survey doi:10.3133/pp933 | Report (issue) | | 1. 2. 3. 4. 5. A sbestos ore Lead ore, Balmat mine, N . Y. Chromite-chromium ore, Washington Zinc ore...Peninsula, Mich. 10. Porphyry molybdenum ore, Colorado 11 . Zinc ore, Edwards , N . Y. 12. Manganese...Survey in accordance with the provisions of the Mining and Minerals Policy Act of 1970 (Public Law 91-631...discovered or not currently profitable to mine. The mining of mineral deposits, once they are discovered...important types of fluorine occurrences-Continued Colorado-New Mexico-western Texas-southeastern Arizona |  | | Journal (article/letter/editorial) | | history, 40 Ar-39Ar analyses for hydrothermal muscovite from several nearby gold-copper deposits indicate...below ~ 300°C was not prolonged. Flat, uniform muscovite age spectra were obtained from gold deposits east...around 1700 Ma, and is confirmed by the 40Ar-39Ar muscovite ages for the 'Warrego' granite (1677 ± 4 Ma) and...ore deposits, of two varieties of hydrothermal muscovite that are paragenetically related to different...Wundirgi Formation - gneiss 7 8 9 10 11 Juno deposit Argo deposit Peko deposit Nobles Nob deposit White Devil |  | | Report (issue) | | Deposits Central Part of the Front Range Mineral Belt Colorado By P. K. SIMS and others GEOLOGICAL SURVEY PROFESSIONAL...______________________________ _ History of uranium mining and production ____________ _ Geologic setting...__________ - ___ - ________ -----------Central City district _____________________ ------Quartz Hill-upper...____________________________ _ West Flack mine __________________ _ ~ercer County mine ______________ -German and Belcher...Iron mine, by A. A. Drake, Jr ___________ _ Jefferson-Calhoun vein _________________ _ Kirk mine ____ |  | | Report (issue) | | Arrington Mine Carolina Slate 'Belt 25 27 2 Gold Hill Mine 28 Placer ~lXlsits 2 Howie Mine 29 !me...me Del"'sits 2 Reed Mine 31 S<>urces and Prtxluction 5 Silver Hill Mine 31 World Sources and...Production 5 Phoenix Mine 33 United States Sources and Production 5 Hoover Hill Mine 33 Mineralogy and...Gardner Hill Mine 33 Uses 7 Fentress Mine 34 Prices 8 Mining Methc:xis 9 Rudisil Mine 34 OJ:>en-Pit...OJ:>en-Pit Mining 9 St. Catherine Mine 35 Underground Mining 9 Capps Mine 35 9 Kings Mountain Belt |
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