 | | Journal (article/letter/editorial) | | THE SUNNYSIDE MINE EUREKA MINING DISTRICT SAN JUAN COUNTY, COLORADO TOM ROSEMEYER Box 586 Ouray, Colorado...the late 1800s and early 1900s, at the height of mining activity, the sprawling Sunnyside mine complex...in the camp without going outside. In the 1960s, mining was carried out on the Washington vein above the...mineral specimens, the most famous being fluorite-rhodochrosite crystal groups. 366 ROCKS & MINERALS There...labeled as follows: Sunnyside mine, Eureka min ing district, San Juan County, Colorado. In 1973, diamond drilling |  | | Journal (issue) | | Rosenzweig Tampa, Florida Richard W. Thomssen Reno, Nevada photography Nelly Bariand Paris, France Wemer Lieber...quartz, 10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by...significant mineral localities in C o l o r a d o ,by county. In addition, there is a complete listing o f all...LOCALITY INDEX BOULDER COUNTY Caribou Mine Caribou (near Nederland), Caribou District (Silver, Uraninite... Copper Rock Ward District (Azurite, Malachite, Cerussite, Galena) Gold Hill Gold Hill District (Nagyagite, |  | | Journal (article/letter/editorial) | | Abstract The Sunnysidemine, in the Eureka mining district, San Juan County, Colorado, produces700 tons/day...veinsfilling faultsandfracturesalongthe northernsideof the Eureka graben,whichformedduring resurgent doming of the...rail for calciteand --6.3 to --7.9 per mil for rhodochrosite, indicatinga limestonesourcefor carbonin calcitewhile...a meteoric or magmatic sourcefor carbon in rhodochrosite. Sulfur isotopevaluesare --6.0 to +2.7 per...northerlyflow until they encountered the structuresof the Eureka graben. Here the primary mechanismof precipitationwas |  | | Journal (article/letter/editorial) | | neverthealess re orted from localities worldwide. Rhodochrosite crystallizes in the trigonal class of the hexagonal...and occurs in a number of diverse forms. Fine rhodochrosite specimens in various habits have been found...stalactites and botryoids at San Luis, Argentina. Rhodochrosite has also been found in many localities in Colorado...crystals (Wenrich 1998). Rhodochrosite occurs in significant amounts in many mining districts of the Colorado...southwestem comer of Colorado. Most of the metal mining in Colorado has been within this belt since the |  | | Journal (article/letter/editorial) | | GEOLOGISTS 1980 MultistageVein Ores of the Lake City District, Western San Juan Mountains,Colorado John,• F...Abstract Polymetallic vein ores of the Lake City district, in the western San Juan Mountains, Colorado,have...the Ute-Ulay mine, the largest producerof the district, titis assemblagehas been divided into four stages(from...massiverhodochrosite'and Id, late quartz-carbonate-fluorite.On a district-wide scale,the quartz-basemetal assemblage showsa...diagnosticbarite,quartz (commonlyas bandedjasperoid),minor rhodochrosite, and rare sericiteand clays. Major parageneticdivisionsare' |  | | Report (issue) | | Replacement Deposits Part I Bald Mountain Gold Mining Region, Northern Black Hills, South Dakota By JAMES...City Mining District, Utah By CALVIN S. B ROM FIELD Gold in the Eureka Mining District, Nevada By DANIEL...and THOMAS B. NOLAN Gold in the Central City Mining District, Colorado By ALAN R. WALLACE U.S. GEOLOGICAL...bibliographies. Contents: pt. 1. Bald Mountain gold mining region, northern Black Hills, South Dakota / by...City mining district, Utah / by Calvin S. Bromfield. Gold in the Eureka mining district, Nevada / by |  | | Journal (article/letter/editorial) | | both common and rare species such as calcite, rhodochrosite, spessartine, magnetite, willemite, franklinite...occurs in compact masses with kutnohorite, rhodochrosite, quartz, and minor sulfides (Dunn 1976). Rhodonite...Franklin County; at Coventry and Irasburgh, Orleans County; and at Cavendish, Windsor County, Vermont... at Keene, and southeast of Hinsdale, Cheshire County, and elsewhere in New Hampshire and is reported...from Haddam, Middletown, and Portland, Middlesex County, Connecticut. In Rhode Island, rhodonite has been |  | Heald-Wetlaufer, Pamela, Hayba, Daniel O., Foley, Nora K., Goss, J.A. (1983) Comparative anatomy of epithermal precious- and base-metal districts hosted by volcanic rocks: A talk presented at the GAC/MSC/GGU Joint Annual Meeting, May 11-13, 1983, Victoria, British Columbia. Open-File Report Vol. 1983 (83-710) US Geological Survey doi:10.3133/ofr83710 | Report (issue) | | precious and base metals 9 Ore from the Creede district, Col. 10 Typical alteration zoning for the highly...deposition. 16 6 180-6D diagram for the Creede district, Col. (modified from Bethke and Rye, 1979). 1...ranges from fluid inclusion studies for the Colqui district, Peru (from Kamilli and Ohmoto, 1977). 19 Temperature...inclusion studies for the Sunnyside mine, Eureka district, Col. (modified from Casadevall and Ohmoto...gold ore on silicified wall rock from Goldfield, Nevada. My coauthors and I have compared and contrasted |  | Siron, Chris R., Thompson, John F.H., Baker, Tim, Darling, Robert, Dipple, Gregory (2019) Origin of Au-Rich Carbonate-Hosted Replacement Deposits of the Kassandra Mining District, Northern Greece: Evidence for Late Oligocene, Structurally Controlled, and Zoned Hydrothermal Systems. Economic Geology, 114 (7) 1389-1414 doi:10.5382/econgeo.4664 | Journal (article/letter/editorial) | | Carbonate-Hosted Replacement Deposits of the Kassandra Mining District, Northern Greece: Evidence for Late Oligocene...Sciences, Cornell University, Ithaca, New York 14853, USA 2 Eldorado 3 Geology 4 Mineral Gold Corporation...University of New York, Cortland, New York 13045, USA Deposit Research Unit, University of British Columbia...massive sulfide orebodies of the Kassandra mining district belong to the intrusionrelated carbonate-hosted...boulangerite-bearing, quartz-rich sulfide and late quartz-rhodochrosite vein breccias. The latter style of mineralization |  | | Report (issue) | | zinc, tungsten, and copper. In 1896 world-renowned mining engineer Thomas ''T.A." Rickard called the San...San Juans one of Colorado's four great mining regions along with Leadville, Cripple Creek, and Central City...Above: August sunrise on middle Blue Lake, Ouray County Photo Jack Brauer/WideRange Photo LLC, 2010 Facing...(now the location of Silverton, Howardsville, and Eureka). Unfortunately, the rush failed because of the...1874, small mining camps had begun to appear. The towns of Silverton, Howardsville, and Eureka took hold |  | | Journal (article/letter/editorial) | | 1007/s00126-006-0103-5 ARTICLE The Sweet Home rhodochrosite specimen mine, Alma District, Central Colorado: the porphyry...sphalerite–tetrahedrite–rhodochrosite–fluorite in the Sweet Home Mine, Alma District, Colorado were originally...however, the mine has produced world-class rhodochrosite specimens. Some of these specimens are considered...of Mines, 1516 Illinois Street, Golden, CO 80401, USA e-mail: pbartos@mines.edu D. Misantoni Colorado Calumet...Calumet Company Inc., P.O. Box 1169, Golden, CO 80402, USA molybdenite; and (5) the presence of similar-appearing | | | Journal (article/letter/editorial) | | 1007/s00126-006-0103-5 ARTICLE The Sweet Home rhodochrosite specimen mine, Alma District, Central Colorado: the porphyry...sphalerite–tetrahedrite–rhodochrosite–fluorite in the Sweet Home Mine, Alma District, Colorado were originally...however, the mine has produced world-class rhodochrosite specimens. Some of these specimens are considered...of Mines, 1516 Illinois Street, Golden, CO 80401, USA e-mail: pbartos@mines.edu D. Misantoni Colorado Calumet...Calumet Company Inc., P.O. Box 1169, Golden, CO 80402, USA molybdenite; and (5) the presence of similar-appearing |  | | Journal (article/letter/editorial) | | Recent Collecting Activity in SAN JUAN COUNTY, COLORADO B A R B A R A and J O H N M U N T Y A N 6978...material has been obtained from a number of San Juan County mines and prospects during the last decade, in...vicinity of Silverton, the principal town in the county. The American Tunnel, located just north of town...specimens in the county. Most museums and many pri vate collections have a rhodochrosite or fluorite specimen...also a number of lesser-known mines in San Juan County from which fine mineral speci mens have been obtained |  | | Journal (article/letter/editorial) | | calcite, Minerva No. 1 Mine, Cave in Rock district, Har din County, Illinois. Harvard Mineralogical Museum...Quartz and chalcopyrite, Bandora mine, San Juan County, Col orado. Barbara and John Muntyan specimen...November-December: Gold, Jamestown, Tuolumne County, California. California State Mining and Mineral Exhibit specimen;...Tourmaline from Little Cahuilla Mountain, Riverside County, California, K. Gochenour, 440 Borates, 488 Bornite...Metamict Samarskites from the South Platte Pegmatite District, Colorado, 458 British Columbia, quartz, 459 Brunet |  | | Report (issue) | | Replacement Deposits Part II Gold in the Tintic Mining District, Utah By HALT. MORRIS Gold Deposits in the...Bird Mining Districts, San Juan Mountains, Colorado By FREDERICKS. FISHER Gold in the Alma Mining District...R. SHAWE Precious Metals in the Leadville Mining District, Colorado By TOMMY B. THOMPSON Part I is Chapter...bibliographies. Contents: pt. 1. Bald Mountain gold mining region, northern Black Hills, South Dakota / by...Tintic Mining District, Utah / by Hal T. Morris. Gold in the Sneffels-Telluride and Camp Bird mining districts |  | | Journal (article/letter/editorial) | | the 1997 Denver Show c Part 2: The Discovery, Mining History, Geology, and Specimen Mineralogy of Selected...in Colorado and the mining history and geology/mineralogy of the Front Range mining districts. In part...Gulch. THE CENTRAL COLORADO MINERAL BELT LAKE COUNTY 3,396,000 ounces, 1860-1 990 (Davis and Streufert...cm (8.5 ounces), Ground Hog mine, Gilman, Eagle County. Harvard Mineralogical Museum specimen M8458, A...boom-and-bust cycle common to almost all these early placer mining camps, but it managed to hold on (barely) because |  | Lüders, Volker, Romer, Rolf L., Gilg, H. Albert, Bodnar, Robert J., Pettke, Thomas, Misantoni, Dean (2009) A geochemical study of the Sweet Home Mine, Colorado Mineral Belt, USA: hydrothermal fluid evolution above a hypothesized granite cupola. Mineralium Deposita, 44 (4) 415-434 doi:10.1007/s00126-008-0221-3 | Journal (article/letter/editorial) | | study of the Sweet Home Mine, Colorado Mineral Belt, USA: hydrothermal fluid evolution above a hypothesized...subsequent hübnerite and sulfide– fluorite–rhodochrosite mineralization at the Sweet Home Mine occurred...Geosciences, Virginia Tech, Blacksburg, VA 24061, USA T. Pettke Institute of Geological Sciences, University...Calumet Company Inc., P.O. Box 1169, Golden, CO 80402, USA al assemblage was deposited from magmatic fluids...Climax-type porphyry systems, with fluorite and rhodochrosite as gangue minerals was deposited under a hydrostatic |  | | Journal (article/letter/editorial) | | O. R¾• Abstract The TungstenQueenmine, Vance County,North Carolina, is a large quartz-huebnerite vein...TungstenQueen deposit,a singlevein in the Hamme district,Vance County,North Carolina,has a geologicsettingand...suggested thatthe veinsof the Hamme understanding district were depositedby hydrothermalfluids which had...the tungstenveins Hamme tungstendistrict,Vance County, North 523 524 T. CASADEVALL AND R. O. RYE...Biotite gneiss g 360 30' i'j•i ii:.•:• I Vance County pluton :':"*:".. .f• Metafelsite --• Greenstone |  | | Report (issue) | | MINERALS OF NEVADA MINERALS OF NEVADA Peer Hen By CASTOR oan eGORY.C.oFER DOCK NEVADA AND BUREAU... UNIVERSITY Reno & Las Vegas OF NEVADA PRESS GEOLOGY Nevada Bureau of Mines and Geology Special...University of Nevada Press, Reno, Nevada 89557 USA Copyright © 2004 by University of Nevada Press Photographs...otherwise noted Map of Mining Districts and significant mineral occurrences of Nevada by Nevada Bureau of Mines...Cataloging-in-Publication Data Castor, Stephen B, Minerals of Nevada / Stephen B. Castor and Gregory C. Ferdock.— Ist |  | | Report (issue) | | ore deposits within the Galena and Mineral Point mining districts south of the American Flats Wilderness...ft) of the concurrently erupting ashflow sheet (Eureka Member of the Sapinero Mesa Tuff) ponded within...northeast-trending zone of tensional faults known as the Eureka graben (fig. 2), which developed along the crest...American Flats area, between Engineer Pass and the Eureka graben, a zone of northeast trending discontinuous...an<* hydrothermal activity along faults of the Eureka graben (figs. 2 and 3) that were reactivated during |  | | Book | | and the Central Mining District, Grant County Burro Mountains Apache No, 2 District Lake Valley Caballo...Mountains Chloride District Hansonburg District Socorro Area New Placers District Grants Area Nacimiento...Uplift Harding Pegmatite Ojo Caliente Pegmatite District 4. COLORADO MINES nm — On 29 DEPOSITS MEXICO...Luis Valley and the San Juan Mountains Bonanza District 33 33 36 37 46 54 bP) 57 59 60 64 68 74 78 80...Sneffels-Telluride District Red Mountain District Cement Creek Tungsten Area Ouray (Uncompahgre) District Poughkeepsie |  | Yun, Seong-Taek, So, Chil-Sup, Choi, Sang-Hoon, Shelton, KevinL., Koo, Ja-Hak (1993) Genetic environment of germanium-bearing gold-silver vein ores from the Wolyu mine, Republic of Korea. Mineralium Deposita, 28 (2) doi:10.1007/bf00196335 | Journal (article/letter/editorial) | | of Missouri-Columbia, Columbia, Missouri 65203, USA 3 Center for Mineral Resources Research, Korea University...gold-silver-bearing epithermal systems in the Youngdong district and is the first gold-silver deposit in Korea...gold-silverbearing epithermal systems in the Youngdong district (Choi et al. 1988) and has remained in almost...1932. It is currently the only active mine in the district and has been one of the largest and most productive...important precious metal producer in the Youngdong district, no detailed studies of it were undertaken previously |  | | Report (volume) | | and Handles Peak Wilderness Study Areas, Hinsdale County, Colorado U.S. GEOLOGICAL SURVEY BULLETIN 1715-B...and Handles Peak Wilderness Study Areas, Hinsdale County, Colorado By RICHARD F. SANFORD, RICHARD I. CRAUCH...and Handles Peak Wilderness Study Areas, Hinsdale County, Colorado. (Mineral resources of wilderness study...Peak (CO-030-241) Wilderness Study Areas, Hinsdale County, Colorado. CONTENTS Summary 1 Abstract 1 Character...identified resources 9 Methods of evaluation 9 Mining history 9 Appraisal of sites examined 10 Redcloud |  | | Report (issue) | | and Butler, G. M.-Arizona lode gold mines and mining: Univ. Ariz., Ariz. Bur. Mines Bull. 137, 1934...Ariz., Ariz. Bur. Mines Bull. 148, 1941. Apache County 2: 17 Gregory, H. E.-Geology Prof. Paper 93, 1917...the Navajo country. U.S. Geol. Survey Cochise County 3:04 Ransome, F. L.-The geology and ore deposits...Tombstone district, Arizona: Univ. Ariz., Ariz. Bur. Mines Bull. 143, 1938. Gila County 4:03 Ransome...Ransome, F. L.-Geology of the Globe copper district, Arizona: U.S. Geol. Survey Prof. Paper 12, 1903. 4:19 |  | | Book | | f. MIMING DISTRICTS and MINERAL RESOURCES of NEVADA by FRANCIS CHURCH LINCOLN i r r i i ; %■... ; 'jxt . 1 — \ MINING DISTRICTS and MINERAL RESOURCES of NEVADA by FRANCIS CHURCH LINCOLN...LINCOLN 0 ll ; RENO NEVADA NEWSLETTER PUBLISHING COMPANY 1923 PREFACE Earlier Works. The object of...infor mation concerning the mining districts and mineral resources of Nevada. No comprehensive work of...peared for a number of years. In the early days of Nevada min ing, from 1866 to 1878, the field was covered |
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