 | | Report (issue) | | Gochetopa and Marshall Pass Districts, Saguache and Gunnison Counties, Colorado U.S. GEOLOGICAL SURVEY PRO FESS...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...Cochetopa and Marshall Pass Districts, Saguache and Gunnison Counties, Colorado By JERRY C. OLSON U.S. GEOLOGICAL...Cochetopa and Marshall Pass districts, Saguache and Gunnison Counties, Colorado. (U.S. Geological Survey professional |  | | Report (issue) | | COLORADO STATE GEOLOGICAL SURVEY BOULDER R. D. GEORGE, State Geologist BULLETIN 9 GEOLOGY AND ORE DEPOSITS...BONANZA DISTRICT SAGUACHE COUNTY COLORADO By HORACE B. PATTON 1915 DENVER,COLORADO EAMES BROTHERS, STATE...DOI: https://doi.org/10.58783/cgs.b09.vtso7767 Colorado State Geological Survey. Bulletin No. 9, Plate...rnor of Colorado LIVINGSTON FARRAND ______________________ President University of Colorado HowARD C...TRANS:\IITTAL ST.I.TE GEOLOGICAL SuRVEY, UNIVERSITY OF CoLORADO, December 2, 1916. Governor George A. Carlson |  | | Journal (article/letter/editorial) | | PECULIAR HYDROTHERMAL VEINS OF THE COLORADO RICHARD COPPER-BEARING NORTHEASTERN PLATEAU.* P. FISCHER........................................... Cashin mine ...................................................... Cliffdweller mine ............................................. Sunrise mine .................................................... Copper Rivet mine ............................................ Mineralization...Valley, Utah ............................. Hoosier mine ............................................ Origin |  | | 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) | | THE GRAND GULCH MINING REGION, MOHAVE COUNTY, ARIZONA. By JAMES M. HILL. INTRODUCTION. Early iff November... R. Callaway, superintendent of the Grand Gulch mine, supplied many details that have been incorporated...district is in that part of Hohave County, Ariz., which lies north of Colorado River and embraces the extreme...extreme western part of the Colorado Plateau. It forms a part of the region sometimes colloquially called...this paper is based only the Grand Gulch mine and the Bronze L mine, on the terrace above and immediately |  | | Book | | .3 COLORADO. of COLORADO. J. S. l GEORGETOWN, COLO. GEORGETOWN COURIER PRINT. 1887. 3 Bancroft...From a mineralogical point of view the wealth of Colorado exceeds that of In the metallic minerals almost...to in the following pages Proceedings of the Colorado Scientific Society. Proceedings of the Academy...the U. S. Geological Survey. J. GEORGETOWN, COLORADO, January, 1887. S. RANDALL. : MINERALS...gravel of streams and in veins. The veins of Gilpin County are especially noteworthy for the amount of gold |  | | Journal (article/letter/editorial) | | hydrothermal vein-type U-deposit from Marshall Pass, Colorado, USA Artur P. Deditius, Satoshi Utsunomiya, Rodney...Michigan, 1100 N. University, Ann Arbor, MI 48109-1005, USA Received 22 January 2007; accepted in revised form...hydrothermal vein-type U-deposit in Marshall Pass, Colorado, has been examined by electron microprobe analysis...of As in uraninite from the widely cited Nopal I mine (Janeczek et al., 1996; Finch and Murakami, 1999)...nuclear fuel. Uranium deposits in Marshall Pass, Colorado, were chosen for the present study because the |  | | Report (issue) | | of copper may occur as bornite, enargite, and chalcocite. By-product minerals frequently include molybdenite...assemblage is pyrite + enargite + marcasite + chalcocite (Milu and others, 2004). In supergene enriched...enriched ores, a typical assemblage might be chalcocite + covellite ± bornite (Schwartz, 1966). In oxide ores...and chalcocite wherein digenite occurs as exsolution lamellae 8 in the bornite and chalcocite rims...replaced some early-stage bornite + digenite ± chalcocite. Cubanite has been reported from some porphyry |  | | Report (issue) | | . . . . . . . . . . . . . . . . . . . . . . 1 County Listings. . . . . . . . . . . . . . . . . . . .... . . . . . . . 4 Mineral Localities Listed by County . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . 7 Beaver County . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . 7 Box Elder County . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . 10 Cache County . . . . . . . . . . . . . . . . . . . . . . . |  | | Catalog/List | | on limonite ....... . Utah Toelle County, Gold Hill, Gold Hill mine --=.rransparent micro crystals on...Copper aluminum silicate' Arizona Pima County, Ajo, New Cornelia mine Sky blue micro xls and coatings on...silicate CLEAVELANDITE Virginia Amelia, Rutherford mine #2 Lustrous white twin xl groups, minor muscovite...quartz . ALTAITE Lead telluride • Colorado Saguache County, Klondike mine Brilliant metallic tin white cleavable...magnesium silicate Canada Heath Lake, Smallwood mine ~e, light brown prismatic crystalline aggregate |  | | Report (issue) | | AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO BY W. S. BURBANK WITH A SECTION ON HISTORY AND...W. HENDERSON Prepared in cooperation with the COLORADO METAL MINING FUND UNITED STATES GOVERNMENT PRINTING...Gulch____.._____-----Sosthenes Gulch and Antoro mine __..-.-_ Vicinity of Round Mountain ____________...and prospects.__________-_____-_--_-__-___-Rawley mine-----___-_-.-_-------------------Production____________...mme_________________-_____--_-__Underground workings and mine buildings._._ Geologic features._________________________ |  | | Journal (article/letter/editorial) | | ............ Chrysoeollagroup ......... Copper pitch .............. Cu Cu20 CuO Cu2(OH)2COa or CuCOa...copperdeposits.It commonly occursjust abovethe chalcocite zone. In a majorityof specimens the cupriteis...massivetype at Ely, Nevada, to a direct origin from chalcocite. A rather characteristic feature of massive...• .•. . • ß "'' 59 -. "-'• "•' FXG.•. Chalcocite brecciated andreplaced by cuprite. Polished surface...coppersulphidesis shown by chalcocite,which is commonlyreplacedby veinletsof malachite. The chalcocite may be massi |  | | Catalog/List | | an shale, some with Arsenopyrite (Bedford Consols Mine, Devon England) The size varies from lxl to lx2...C315 single 1/2 ins NATIVE ARSENIC rich (Kusa Mine, near ,Bau, lx2 f.5 •2x2 EIO crystal, across. ...masses filling·small (Lockout Pass,Tooele County, Utah, USA) lem C319 BUSTAMITE excellent rich near...Au Te/2 bright metallic (Cripple Creek, Colcrado, USA) lem C321 CATAPLEITcE Na Zr Silicate. Yukspor,...of Chalcopyrite. (16 level, Sim.ms Lade, Geevor Mine ,Cornwall) size reflects the area of botryoidal |  | | Journal (article/letter/editorial) | | 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... p. 586, x92o. 4 Henderson, C. W.: Mining in Colorado. U.S. P. 47, x926. Geol. Surv. Prof. Paper x38...copperdeposit,are found in Oklahoma,Texas,New Mexico,Colorado,Arizona, andUtah. They occurtypicallyin sandstones |  | Braxton, D. P., Cooke, D. R., Ignacio, A. M., Rye, R. O., Waters, P. J. (2009) Ultra-Deep Oxidation and Exotic Copper Formation at the Late Pliocene Boyongan and Bayugo Porphyry Copper-Gold Deposits, Surigao, Philippines: Geology, Mineralogy, Paleoaltimetry, and their Implications for Geologic, Physiographic, and Tectonic Controls. Economic Geology, 104 (3) 333-349 doi:10.2113/gsecongeo.104.3.333 | Journal (article/letter/editorial) | | Survey, P.O. Box 25046, MS 963, Denver, Colorado 80225, USA American Exploration (Philippines) Inc....cuprite) to deeper sulfide-stable assemblages (chalcocite ± hypogene sulfides). This transition provides...Chuquicamata (Cl) Inspiration (Az) Toquepala (Pe) Cerro Colorado (Cl) Ok Tedi (PNG) El Abra (Cl) Mocoa (Co) Boyongan...abbreviations: Az = Arizona (USA), Cl = Chile, Co = Colombia, NM = New Mexico (USA), Pe = Peru, Ph = Philippines... Oxide zone broch, pitch mal, chry (mal, az, Cu) mal, az, chry, cup, Cu, pitch mal, az, chry, cup, |  | | Journal (article/letter/editorial) | | meteoricin origin) in Mesozoicsedimentsof the Colorado Plateau area were reducedby anerobic bacteria...depositsin the Monticello mining district, San Juan County, Utah. The Sa2/Sa4 ratios of these sampleswere...however,the other sulfidesanalyzed,such as galena,chalcocite,and chalcopyrite,were not acid treated. The superpannerwas... pyrite North Formation Montrose County, Colorado Star mine: mineralized sandstone --23.0 Gypsum...Gypsum Valley District, San Miguel County, pyrite Colorado Pitchfork mine: sulfide from sheared zone --41 |  | Nelson, M., Kyser, K., Clark, A., Oates, C. (2007) Carbon Isotope Evidence for Microbial Involvement in Exotic Copper Silicate Mineralization, Huinquintipa and Mina Sur, Northern Chile. Economic Geology, 102 (7) 1311-1320 doi:10.2113/gsecongeo.102.7.1311 | Journal (article/letter/editorial) | | anthropogenic environments, including those of acid mine drainage (Johnson and Hallberg, 2003). Sillitoe... 1999) interpreted microscopic bodies in the chalcocite blankets of the Chuquicamata and El Salvador...microbial forms were concentrated near replacive chalcocite-chalcopyrite interfaces and microbial fixation...was inferred to have played a kinetic role in chalcocite formation. At Morenci, Arizona, Enders et al...Cu(-Mn-Fe) oxides and oxyhydrates (copper wad and pitch) that precipitated in the matrix of pediment gravels |  | | Report (volume) | | A. F. Rogers, Stanford University, Palo Alto. Colorado.........Prof. R. D. George, Boulder. Connecticut...See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson...Jefferson County, at Elyton; Lee County, at Chewacla lime works; St. Clair County, at Gfeensport; Shelby |  | | Book | | MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Sine —_—< ¢ te om At _SHT 40...MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Richard Walker Holmes and Marrianna...Mines and minerals of the Great American Rift (Colorado-New Mexico). Bibliography: p. Includes index...index. 1. Mines and mineral resources—Colorado. 2. Mines and mineral resources—New Mexico. I. Kennedy, Marrianna...enter must be obtained to prevent trespass. Old mine workings are dangerous and entering underground |  | | Journal (article/letter/editorial) | | DEPOSITS OF THE SUNLIGHT MINING ,REGION, PARK COUNTY, WYOMING. WILLARD H. PARSONS. ABSTRACT. The...Mountains in the Shoshone National Forest, Pa.rk County,Wyoming. Its ore depositsoccurin the cirquebasins...geologyand ore deposits of the Sunlightarea, Park County,Wyoming. Typewrittencopyof Doctor'sthesisdeposited...MAP of the SUNLIGHT 837 MININ• RœGION, PARK COUNTY, WYOMIN• -- Legend rl-K-1Gleolers end Moreines...intergrowngraphicallywith chalcociteas shownin Fig. 4. The chalcocite occurs in coarse bluecrystalline areaswith orthorhombic |  | | Report (issue) | | in the south-central part of Arizona, in Final County. About it centers the present activity of the Pioneer...also into diabase, just north of the Silver King mine. A prominent structural feature near Superior is...village and passes a few feet west of the Queen mine. The fault plane dips west, apparently at about...alluvial deposits south of the Queen mine. ' MINES. ' . The most noted mine in the vicinity of Superior is...form commonly called by miners a " chimney." The mine ceased to be regularly productive about 1888 and |  | | Journal (article/letter/editorial) | | SOCIETY OF GEOLOGISTS SEPTEMBER--OCTOBER, 1955 CHALCOCITE-ORE LAWSON DEPOSITS P. ENTWISTLE AND NO....BOLIVIA O. GOUIN ABSTRACT Native copper and chalcocite are the principal minerals in the ore depositsat...Ramos and in the oxidized zone of the Vetas. As most mine openings in the native copper areas are now ina...somesuggestionof bleachingin the Ramos. The occurrence of chalcocite was studied in detail throughout the Vetas. The...to processesof sedimentation. The orthorhombic chalcocite is found in depressionsin the original sediments |  | | Journal (issue) | | Julius Weber Mamaroneck, New York COLORADO ISSUE #2 Articles Colorado locality index.............................. 323 by B. L. Muntyan What’s new in Colorado minerals? ...................................... Famous mineral localities: the Home Sweet Home mine ..................................................339 by M. I. Jacobson The San Juan Mountains of Colorado ..................................349 by J. A...10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by John |  | | Report (volume) | | 4=78 GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO BY JOHN DUER IRVING AND HOWLAND BANCROFT WASHINGTON...proustite.............................. Secondary chalcocite.................................. Covellite....... Ute and Ulay mine.......................'................. Hidden Treasure mine....................94 Hidden Treasure mine..................................... - 94 Ute and Ulay mine.....................workings of Black Crook mine................. FIGURE 1. Index map of a portion of Colorado, showing the location |  | | Report (issue) | | COUNTIES, COIO. By WALDEMAR LINDGREN. INTRODUCTION. Colorado is not an important copper-producing State. The...Juan County slightly exceeded 1,500,000 pounds. The copper ores, properly so called, of Colorado comprised...from San Juan County. It may be said that Colorado does not contain a single copper mine of prominence...Nearly all the gold- and silver-bearing deposits of Colorado, and the copper deposits as well, occur in close...New Mexico, Texas, and Arizona; also in western Colorado. These deposits are generally of low grade, but |
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