 | | Report (issue) | | ophyllite; 5. 2 cm tall Cerro Rico, Potosi, B,atillo province, Potosi Andy Seibel col/action Jejf-SC,m/.plwto...wp11�. Yaalte: 12.5 cm wide Siglo XX Mine, ,U� Bustillo province, Potosi Malty Zinn colkdknt (ex Marv...Bunk specimen Jesse La Plante photo Map: Oruro Department ...............................................in Oruro ... 26 BY ROBERT B. COOK The Morococala Mine ..................................................JAROSLAV HYRSL AND ALFREDO PETROV Map: Potosi Department ............................................ |  | | Journal (issue) | | Articles Famous mineral localities: The Bristol copper mine, Connecticut......................................in the U.S.A. notesfrom th r EDITORS OLD YUMA MINE Another great mineral locality has now been closed...longfamous Old Yuma mine near Tucson (see R. L. Jones, “Famous mineral localities: the Old Yuma mine,” in vol....period of activity, access to the mine was cut off in 1984. In 1996 the mine area was absorbed into the Saguaro...and Mining Company for the sum of $558,000. The mine is now owned outright by the Federal Government |  | Cunningham, C.G., Aparicio N., Hugo, Murillo S., Fernando, Jimenez, Nestor C., Lizeca B., J. L., McKee, E.H., Ericksen, G.E., Franz, Tavera V. (1994) The relationship between the Porco, Bolivia, Ag-Zn-Pb-Sn deposit and the Porco caldera. Open-File Report Vol. 1994 (94-238) US Geological Survey doi:10.3133/ofr94238 | Report (issue) | | U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY The relationship between the Porco, Bolivia,...The primary Ag minerals, chiefly pyragyrite, acanthite, and stephanite, are most abundant in the upper...mineralization. Introduction The Porco Ag-Zn-Pb-Sn mine has had a long history of production beginning in...deposit (Fig. 1; Cunningham et al., 1991). The Porco mine (Fig. 2) is about 5 km south of the village SIMPLIFIED...topographic wall of Porco caldera Cerro Apo Porco Porco mine Caldera topographic wall Cerro Huayna Porco I |  | | Journal (article/letter/editorial) | | SUGAKIet al., 1986a; TARKIANand BRESKOVSK A, 1990; FRIAS, 1992). Both polybasite and pearceite are pseudo-hexagonal...four spectrometer Cameca SX-50 microprobe in the Department of Earth and Atmospheric Sciences at Purdue University...75°C as outlined by SKINNER( 1966). Here ac = acanthite, jp = jalpaite, 0 = 0 phase in the Ag2S-Cu$ subsystem...1966) and illustrated in the insert. Here ac = acanthite, jp = jalpaite, @ = @phase in the Ag*S-Cu$ subsystem...for natural polybasite-pearceites are taken from FRIAS( 1992), TARKIAN and BRESKOVSKA(1990), YELENet al |  | Wang, Fengxiang, Bagas, Leon, Jiang, Sihong, Zhang, Fuxiang, Liu, Yifei, Chong, Xiaoxiao (2019) Geochronology and ore genesis of the Shuangjianzishan Ag-polymetallic deposit, Inner Mongolia, China. Ore Geology Reviews, 107. 1020-1045 doi:10.1016/j.oregeorev.2019.03.026 | Journal (article/letter/editorial) | | different levels in the underground Shuangjianzishan mine for mineralogical and geochemical studies. Sixteen...mineralization from different levels of the Shuangjianzishan mine. Sulfur isotope ratios were measured on pyrite,...(Sugaki et al., 1986; Tarkian and Breskovska, 1990; Frias, 1992). The morphology of the hosted crystals is...Economic Geologists Special Publication 10, 285–314. Frias J.M., 1992. The Hiendelaencina mining district (Guadalajara...deposits occurring in the Ulaan-Jiawula metallogenic province, northeast Asia. J. Asian Earth Sci. 97, 424–441 |  | | Journal (issue) | | Cd-bearing phosphate mineral from the Gold Quarry mine, Eureka County, Nevada . . . . . . . . . . . . ...crystal cluster, 7.3 cm, from near Bapu, Guangdong Province, China. Rob Lavinsky specimen, now in the Tom...recovered from the dumps of this small mine. Local collectors reworked the mine dumps many times in search of...about 325 meters southwest of the Bishop manganese mine. The locality was early on referred to as a “copper...spatially distinct from the nearby Bishop manganese mine. The dumps do not contain significant manganese |  | Holley, Elizabeth A., Monecke, Thomas, Bissig, Thomas, Reynolds, T. James (2017) Evolution of High-Level Magmatic-Hydrothermal Systems: New Insights from Ore Paragenesis of the Veladero High-Sulfidation Epithermal Au-Ag Deposit, El Indio-Pascua Belt, Argentina. Economic Geology, 112 (7) 1747-1771 doi:10.5382/econgeo.2017.4528 | Journal (article/letter/editorial) | | Thomas Bissig,3,* and T. James Reynolds4 1 Department 2 Department 3 Mineral of Mining Engineering, Colorado...Golden, Colorado 80401 Deposit Research Unit, Department of Earth and Ocean Sciences, University of British...originally contained in Ag sulfides, such as acanthite/argentite, Ag-bearing pyrite, or galena. Sulfide...identified at several localities (e.g., Martinez-Frias et al., 2004; Lueth et al., 2005). The compositions...Processing Veladero is an open-pit, heap leach Au and Ag mine. The ore undergoes a two-stage crushing process |  | | Conference Proceedings (Volume) | | Cover photograph: View of the Aitik open pit copper mine in the very north of Sweden. Mining operations started...Ahola Occurrence of gold (electrum) in the Lousal mine, Iberian pyrite belt, Portugal ..................Guimarães, João X. Matos, Zélia Pereira, Vasco C. S. Frias, Diogo R. N. Rosa & J. M. Castelo Branco Partial...Mo-Ni-PGE black shales (Zunyi region, Guizhou province, south China) .................................the largest hematite ore body in the Hamersley Province, Australia .................................. |  | | Book | | Eulalia District....... El Potosi Mine............. San Antonio Mine....... Cusihuiriachic District................................. Minerals of Ojuela Mine .... . Velardena District.........................Guanajuato District ..................... El Sanlin Mine......................... San Miguel de Allende ...assistant superintendent, both of Fresnillo’s Naica mine, helped with data and review. Dr. Edwin Roedder...on gypsum inclu sions. Dr. Allen M. Bassett, Department of Geology, San Diego State College, critically |  | | Book | | Berlin Heidelberg GmbH Prof. LLufs FONTBOTE Department de Mineralogie Universite de Geneve 13, rue des...Eidel (1991) and Russell and Skauli (1991). 1 Department 2 de Mineralogie, rue des Maraichers 13, 1211...should mention again the Irish deposits zinclead province, which bear "prototypes" of sedimentary-exhalative...intensive experimental geochemical research 1 Department of Geology, University of Manchester, Manchester...deposits, such as Friedensville, Elmwood and the Young Mine are sphaleriterich deposits, with very little galena |  | | Report (volume) | | PRINTING OFFICE, WASHINGTON : 1972 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary...Mines and Geology Geochem. Rept.- State of Alaska Department of Natural Resources, Division of Mines and Geology...Mines and Geology Geol. Rept.- State of Alaska Department of Natural Resources, Division of Mines and Geology...Geographer. Publication of the Graduate Students, Department of Geography, University of Alberta. Edmonton...Arkansas Acad. Sci. Proc. Ark. Arizona State Land Department Water Arkansas Academy of Science Proceedings |
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