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| Ore Deposits of the Freeland-Lamartine District, Clear Creek County, Colorado GEOLOGICAL SURVEY BULLETIN...Ore Deposits of the Freeland-Lamartine District, Clear Creek County, Colorado By J. E. HARRISON and J. D...GEOLOGY AND ORE DEPOSITS OF CLEAR CREEK, GILPIN, AND LARIMER COUNTIES, COLORADO GEOLOGICAL SURVEY BULLETIN...____________________ 73 Production from the district.___________________________________ Classification...mine___________________________________________________ Brighton mine.____________________________________________ Crazy |
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| FRACTURE ZONING LAMARTINE IN THE DISTRICT, PATTERN AND FREELAND- COLORADO • JACK E. HARRISON...Tertiary age in the Freeland-Lamartinedistrict, Clear Creek County,Colo.,fill long, cymoid-shaped fissuresthat...INTRODUCTION TUE Freeland-Lamartinedistrict, Clear Creek County, Colo., is part of the Front Range Mineral...resultsof part of that study. The bedrockof the district is composedpredominantlyof tightly folded biotite-richand...Indexmapshowingthe locationof the Freeland-Lamartine district,Colo. Ball (8, pl. 2) as the IdahoSpringsformation |
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| of COLORADO ED RAINES Geology Museum Colorado School of Mines 1310 Maple Street Golden, Colorado 80401...noted Figure 1. Camp Bird mine, level 2, Sneffels district, Ouray County. Raines-Pettem collection,...photographer unknown. B etween 1868 and 1922, Colorado produced almost 260 million pounds of copper....from the Leadville district, with another 50 million pounds mined in San Juan County (Henderson 1926).... During the twentieth century, the Gilman district surpassed Leadville in total copper production with |
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| International University] at 22:16 23 December 2014 Gold mining is not romantic, it is dirty, and it is very hard...played out on a daily basis in opening the Colorado mining frontier, however, are very much the stuff...generation had seen an Colorado showing the Colorado mineral belt and the location of the mining districts discussed...1940; Elliot West 1997, verbal com.). scope of this mining economy. There simply was no other ecoThe initial...of 1858 were nomic force to compare with that of mining during the first all made along streams on the |
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| 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 ____ |
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| and Ore Deposits of the Chicago Creek Area Clear Creek County Colorado GEOLOGICAL SURVEY PROFESSIONAL...and Ore Deposits of the Chicago Creek Area Clear Creek County Colorado By J. E. HARRISON and J. D. WELLS...and ore deposits of the Chicago Creek area, Clear Creek County, Colorado, by J. E. Harrison and J. D. Wells...Geology Colorado Clear Creek Co. 2. Ore deposits Colorado Clear Creek Co. 3. Petrology Colorado Clear Creek..._---_-__-_--__________-____________--. History of the district-______________________________ General geology |
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| between footwall and hanging wall seams, Carroll mine.______--_-_____________________________________...Cross section through Crooks Gap area, Fremont County, Wyo__ __________-______-___--_--__------------_...roll, Rex No. 1 mine- ______ 50. Fault in back of stoped-out ore roll, Rex No. 1 mine- ___---___-_---...of Eocene age in uplifted fault block at RanRex mine.- _____________________________________________...of part of the Ridenour mine showing uraniferous copper vein and outline of mine workings. ________ 54 |
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| Deposits Of the Lawson-DumontFall River District Clear Creek County Colorado By C. C. HAWLEY and FRANK BAKER...of the general geology and ore deposits of the district which forms the northwestern part of the important...~arcasite________________________________________ Sphalerite _____ -------____________________________ Ch...veins___________________________________________ Galena-sphalerite veins_____________________________________ Hypogene...section of the Lawson-Dumont-Fall River district, Clear County, Colo. 2. ~ap showing major faults (veins) |
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| Front Range Mineral Belt Gilpin and Clear Creek Counties. Colorado GEOLOGICAL SURVEY PROFESSIONAL Prepared...Front Range Mineral Belt Gilpin and Clear Creek Counties, Colorado By E. W. TOOKER GEOLOGICAL SURVEY...Front Kange mineral belt, Gilpin and Clear Creek Counties, Colorado. Washington, U.S. Govt. Print. Off...belt, Gilpin and Clear Creek Counties, Colorado. 1963. (Card 2) 1. Geology Colorado Front Range. 2. Petrology...Petrology Colorado Front Range. 3. Ore deposits Colorado. 4. Mineralogy Colorado Front Range. 5. Metamorphism |
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| GEORGETOWN QlJADRANGLE (TOGETHER 'VITH THE EMPIRE DISTRICT) COLORADo· BY JOSIAH E. SPURR AND GEORGE H. GARREY..................._.......... . Distribution in Colorado ................................................Boulder County.............. . . . . . . . . . . . ......... . ....... . 103 Ores in Gilpin County ............................... . 103 Orcs in Clear Creek County ............................ . 103 Ores from...Argentine to the Tenmile district .. : ............... . 104 Ores of the Tenmile 'district ................. |
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| COLORADO e Gold Hill 0 DENVER Wulfenite Occurrences in Colorado Leadville 0 1 Tincup 03 . 4 Lake...2015 TOM ROSEMEYER 1632 Camp Bird Mine Road P.O.Box 586 Ouray, Colorado 81427 CONNOISSEURS OF WULFENITE...WULFENITE probably do not think of Colorado as a noteworthy state that has produced fine specimens of wulfenite...deposits throughout the state. A good portion of the Colorado wulfenite localities do not compare with those...last twenty-five years either as a result of new mining operations or as new discoveries in abandoned mines |
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| at 00:11 06 November 2014 Eagle Mine, Cilman, Eagle County, Colorado W orld production of zinc is enormous...a single zinc mineral, sphalerite. Fortunately for the collector, sphalerite tends to form well-crystallized...Although Colorado boasts an unusually large number of good sphalerite occurrences, the Eagle mine at Gilman...the source of a correspondingly large number of sphalerite specimens. Inasmuch as the minerals of the now-closed...issue’s Connoisseur’s Choice (figs. 1 and 2 ) . Sphalerite is notable for its dodecahedral cleavage, the |
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| at 13:31 09 June 2016 Colorado boasts numerous localities where fine sphalerite specimens have been found...reported from numerous localities worldwide. Fine sphalerite specimens, for example, have been found at Elmwood...Elmwood, Tennessee; the mines of the Tri-State district of Missouri-OklaDownloaded by [University of Nebraska...We1I-crystaIIized examples of sphalerite also occur at many localities in Colorado, in shades of amber, emerald-...marmatite), pink, or dark red (Eckel et al. 1997). Sphalerite crystallizes in the hextetrahedrat class of the |
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| National University] at 06:43 31 December 2014 mine in Colorado, and they found virtually the entire series...associated with, among others, chalcopyrite, galena, sphalerite, pyrite, acanthite, bornite, calcite, dolomite... cuprite, covellite, pyrite, bournonite, and sphalerite after tetrahedrite (Palache, Berman, Figure 2...tetrahedrite and pyrite specimen from the Anchor mine, Park City, Utah. The specimen was in the stock...present time are from the Sweet Home mine, near Alma, Park County, Colorado, where it occurs with rhodochrosite |
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| Geology of Uranium Deposits in the Front Range, Colorado By P. K. SIMS and D. M. SHERIDAN With sections...mines_______________________________________ Boulder CountY----------------------------------~-----------Jamestown...Generalfeatures--------------------------------------Blue Jay mine, by R. U. King__________________________ Fair Day...mine________________________________________ Nations Treasure mine, by R. U. King___________________ Victory group...Description of principal mines-Continued Boulder County-Continued Other areas __________________________ |
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| 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...hornblende gneiss ____________ _ Quartzite at Coal Creek ________________ _ Igneous rocks _____________________________...Quartz diorite and associated hornblendite_ Boulder Creek granite _________________ _ Pikes Peak granite |
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| Geology of the Idaho Springs District Clear Creek and Gilpin Counties, Colorado GEOLOGICAL (=) I o 00...of the Idaho Springs District Clear Creek and -i ;i ?i Gilpin Counties, Colorado By ROBERT H. MOENCH and...____ Mines and prospects in the Idaho Springs district ________________ Previous studies.___________..._________ __________________________________ Sphalerite. _________.__ -_______---_-_-____________'___-_--Galena...pocket] PLATE 1. Map of the Idaho Springs district, Colorado, showing location of mines and distribution |
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| MINING JOURNAL Blending Coal Entities for Maximum Coke Strength is now practical on a Commercial Production...« ST. PAUL 1, MINN, MINING CONGRESS JOURNAL VOL. EDITORS Conventional Mining George W. Lockin N....Sere cprrst te te ree, cones nee of the American Mining Congress. resent those PUBLISHER J. Allen Overton...Holes in Overburden Blasting W. G. Piper Financing Mining Ventures—A Canadian View V. C. Wansbrough Economies...Manufacturers Forum Copyright 1963 by THE AMERICAN MINING CONGRESS Ring Bidg., Washington, D. C., 20036 President |
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| RECONNAISSANCE OF PART OF NORTH-CENTRAL CLEAR CREEK COUNTY COLORADO This report concerns work done on behalf...RECONNAISSANCE OF PART OF NORTH-CENTRAL CLEAR CREEK COUNTY, COLORADO By John D. Wells and Jack E. Harrison...GOLDEN O 1 lDAHO SPRINGS GEORGETOWN J CLEAR EFFERSON CREEK J i ARK ) 20 Miles _l 10 0 i ............ i Figure 1. Index map of central Colorado showing area covered by reconnaissance. ii RADIOACTIVITY...RECONNAISSANCE OF PART OF NORTH-CENTRAL CLEAR CREEITCOUNTY, COLORADO By John D. Wells and Jack E. Harrison |
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| Bldg., 2600 corridor, 18th and CSts.,NW. DENVER, Colorado-Federal Bldg., Rm. 169,1961 Stout St. LOS ANGELES...ROLLA, Missouri-1400 Independence Rd. DENVER, Colorado-Map Distribution, Bldg. 810, Federal Center FAIRBANKS...Replacement Deposits Part I Bald Mountain Gold Mining Region, Northern Black Hills, South Dakota By JAMES...Park City Mining District, Utah By CALVIN S. B ROM FIELD Gold in the Eureka Mining District, Nevada By...THOMAS B. NOLAN Gold in the Central City Mining District, Colorado By ALAN R. WALLACE U.S. GEOLOGICAL SURVEY |
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| organization is carrying on for the direct advancement of mining interests throughout the country than can readily........ 932 Hague, A.; Weed, National Park; no mining W. H.; . Iddings, permitted. J.P. Lindgren, W.... No. 38. Economic geology of the Bingharn mining district, Utah, by J. M. Boutwell, Arthur Keith, and...Tonopah mining district, Nevada, by J. E. Spurr. No. 43. Copper deposits of Clifton-Morenei district, Arizona...Ulrich. * Folios: No. 120. Silverton quadrangle, Colorado, by Whitman Cross, Ernest Howe, and F. L. Ransome |
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| the Eureka Gulch Area Central City District Gilpin County Colorado GEOLOGICAL SURVEY BULLETIN This...the Eureka Gulch Area Central City District Gilpin County Colorado By P. K. SIMS, F. W. OSTERWALD, and...GEOLOGY AND ORE DEPOSITS OF CLEAR CREEK, GILPIN, AND LARIMER COUNTIES, COLORADO GEOLOGICAL SURVEY BULLETIN..._ ________________ _ _ _ _ _ ___ _ _ ___ Bullion mine«,_____________ _ _ _ ______ _ __ _ __ __ Carroll...mine_________________ _ _ _ ________ _ ___ ___ Rara Avis mine... _____________ _ ______________ _____ _ R. H. |
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| 1629-1644 Metal Ratiosof the Quiruvilca Mining District, Northern Peru PAULJ. BARTOS ASARCOInc., R...distalendsdominantlycontain parageneticallylater sphalerite-galena mineralization;this is an evolutionseenin...evolutionseenin other vein districts such as Freeland-Lamartine, Colorado. The configurations of individualmetalratiosare...generate too muchnoiseto discernsignificantpatterns. District-scale metalratiosof basemetallodedepositsshowconsiderable...Thisstudydealswiththe southern partof theQuiruvilcabasemetallode district(Coco-LuzAngelica area),whichis locatedapproximately |
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| Geology of Precambrian rocks, Idaho Springs district, Colorado, by Robert H. Moench. (B) Geology and coal... Geology of Precambrian Rocks, Idaho Springs District, Colorado By ROBERT H. MOENCH CONTRIBUTIONS TO ECONOMIC...pocket 2. Geologic sections of the Idaho Springs district _________ In pocket PLATE Page FIGURE 1. Map...present and previous workers in the Idaho Springs district ____________________ ----- ________ ----2-9. Modes...IDAHO SPRINGS DISTRICT, COLORADO By RoBERT H. MoENCH ABSTRACT The Idaho Springs district, an area of Tertiary |
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| important were those in the Central City district, Colorado, from which about 300 tons of high-grade...Silver Cliff mine, Wyoming; the Jesse D No. 1 and No. 2 claims, Utah; and the Merry Widow mine, New Mexico...Utah; the Schwartzwalder (Ralston Creek) and Los Ochos mines, Colorado; the Early Day and Buckhorn claims...mines, Washington; the W. Wilson mine, Montana; the White King mine, Oregon; the deposits in the Pryor...deposits in the Dripping Spring quartzite, Gila County, Ariz. According to Nininger (1954, p. 43), as |
