 | | Report (issue) | | study area, Custer and Gallatin National Forests, Montana Edited by JANE M. HAMMARSTROM1, MICHAEL L. ZIENTEK2...Study Area, Custer and Gallatin National Forests, Montana U.S. Geological Survey Open-File Report 93-207...700 km2) of National Forest land in southwestern Montana adjacent to the northern part of Yellowstone National...chromium resources in the U.S., as well as significant gold, silver, copper, lead, and zinc resources. Mines...operated in the area since the 1860's and have produced gold, silver, arsenic, tungsten, copper, lead, zinc, |  | | Report (issue) | | DAVID W . BEATY, GARY P . LANDIS, AND TOMMY B. THOMPSON, EDITORS Leadville-type ore Sherman-type ore...paralle l to host-rock bedding. Black Cloud mine, Leadville district. Sherman-type ore (bottom) in paleokarst...veined with ferroan dolomite. rv1oose mine, North Alma district. Photographs b)' \Villiarn Sacco, Peabody...Carbonate-hosted sulfide deposits of the central Colorado mine ral belt: Introduction, general discussion, and...David W. Beaty, Gary P. Landis, and Tom,ny B. Thompson Regional geologic studies: 1 Regional geologic |  | | Journal (article/letter/editorial) | | 10.1007/s00126-012-0410-y ARTICLE The origin of AgāAuāSāSe minerals in adularia-sericite epithermal...Abstract The 7.1 Ma Broken Hills adularia-sericite AuāAg deposit is currently the only producing rhyolite-hosted... an unnamed silver chloride (Ag2Cl), and unnamed AgĀ±Au minerals. Uytenbogaardtite and petrovskaite occur...Mauk@auckland.ac.nz S. D. C. Rabone Broken Hills Gold Co, PO Box 99 732, Newmarket, Auckland, New Zealand...In the Hauraki Goldfield and the western Great Basin, USA, Se-rich minerals are more abundant in provinces |  | Voudouris, P., Melfos, V., Spry, P. G., Bonsall, T. A., Tarkian, M., Solomos, Ch. (2008) Carbonate-replacement PbāZnāAgāĀ±āAu mineralization in the Kamariza area, Lavrion, Greece: Mineralogy and thermochemical conditions of formation. Mineralogy and Petrology, 94 (1) 85-106 doi:10.1007/s00710-008-0007-4 | Journal (article/letter/editorial) | | 1007/s00710-008-0007-4 ORIGINAL PAPER Carbonate-replacement PbāZnāAgĀ±Au mineralization in the Kamariza area, Lavrion,...Carbonate-replacement PbāZnāAgĀ±Au deposits in the Kamariza area, Lavrion district, Attica, Greece, are genetically...within a rapidly extending continental back-arc basin, which formed during exhumation of the Attic-Cycladic...Atmospheric Sciences, Iowa State University, Ames, IA, USA M. Tarkian Mineralogisch-Petrographisches Institut...phases (petrukite), sulfosalts and sulfbismuthites of Ag, Bi, Cu, Pb, As, Sb (tetrahedrite-group minerals |  | Bagby, W.C., Haxel, G.B., Smith, D.B., Koch, R.D., Grubensky, M.J., Sherrod, D.R., Pickthorn, L.G. (1987) Mineral resource assessment of the Kofa National Wildlife Refuge, Arizona. Open-File Report Vol. 1987 (87-609) US Geological Survey doi:10.3133/ofr87609 | Report (issue) | | Gneiss- or schist-hosted, detachment fault related(?) gold systems High temperature hot-spring systems Sed...Sedimentary-rock-hosted, disseminated precious-metal systems Gold and galena placer-depositing processes Rhyolite-Sn...Castle Dome anomaly (7) Geophysical data Review of mining and exploration activity Past production Recent...copper and associated skarn deposits Domain V: placer gold deposits Domain VI: rhyolite-hosted Sn deposits...placer gold and platinum-group-element deposits, rhyolite-hosted tin deposits, and low-sulfide gold-tungsten-quartz |  | | Journal (article/letter/editorial) | | enriched in tellurides which, in addition to native gold and electrum, represent major carriers of precious...relations and by the presence of key minerals (Pb- and Ag-rich tellurides, Bi-sulfosalts and Bitellurides=tellurosulfides)...sylvanite, petzite, coloradoite, altaite, unnamed Ag-sulfotelluride, native tellurium and electrum are...galena. The presence of hessite, goldfieldite, native gold and enargite or famatinite suggests deposition at...enrichment and the trace element signature involving Au, Ag, Te, Bi, Sn and Mo suggest that ore-forming components |  | Stouraiti, Christina, Soukis, Konstantinos, Voudouris, Panagiotis, Mavrogonatos, Constantinos, Lozios, Stylianos, Lekkas, Spyridon, Beard, Andrew, Strauss, Harald, Palles, Dimitrios, Baziotis, Ioannis, Soulamidis, Georgios (2019) Silver-rich sulfide mineralization in the northwestern termination of the Western Cycladic Detachment System, at Agios Ioannis Kynigos, Hymittos Mt. (Attica, Greece): A mineralogical, geochemical and stable isotope study. Ore Geology Reviews, 111. 102992 doi:10.1016/j.oregeorev.2019.102992 | Journal (article/letter/editorial) | | northern Hymittos Mt (central Attica, Greece) district has made this region important due to its structural...world-class Lavrion mining district (25 km SE of Hymittos Mt.). At Agios Ioannis Kynigos mine veins of oxidized...oxidized Fe-Pb-Zn-Ag ore are hosted in mylonitic marbles that were predominantly affected by brittle-ductile...Galena contains abundant inclusions of Pb-As-Sb-Cu-Ag sulfosalts (tetrahedrite group minerals, bournonite...192 to 1500 ppm Ag, is recorded from the present study, with Ag hosted mainly in Ag-tetrahedrite, acanthite |  | Gu, Xiang-Ping, Watanabe, Makoto, Hoshino, Kenichi, Shibata, Yasuhiro (2003) New find of silver tellurosulphides from the Funan gold deposit, East Shandong, China. European Journal of Mineralogy, 15 (1) 147-155 doi:10.1127/0935-1221/2003/0015-0147 | Journal (article/letter/editorial) | | New find of silver tellurosulphides from the Funan gold deposit, East Shandong, China XIANG-PING GU1, 2...tellurosulphides were discovered in the Funan quartz vein-type gold deposit, East Shandong, China. One is optically...electron-microprobe analyses of the compounds in the (Ag, Cu)6TeS2 ā (Ag, Cu)4TeS series, with the generalized formula...y 3, reveal a wide range of substitution between Ag and Cu as well as Te and S both in cervelleite-like...possiblyseparate phase Ag6TeS2. An unnamed secondary Ag-Au-Cu sulphide, with the composition Ag6.10Au1.06Cu1 |  | | Report (issue) | | Gavilanes Tungsten District El Antimonio District Magdalena District Cananea District Preliminary Deposit-Type...or to a group of closely-spaced deposits. Two district records have been included (MX00018 and MX02161)...or names of individual orebodies. DISTRICT/AREA Informal district name used in the literature. Names...commodities are listed by their chemical symbol (AU = gold, Pb = lead, etc.). Non-metallic commodities are...economic interest. MINOR: Coproducts or byproducts of mining. POTEN: Commodities that have not been exploited |  | | Report (issue) | | LG001 Site name(s): Troublesome Creek Site type: Mine ARDFno.: LG001 Latitude: 65.506 Quadrangle: LGC-6...accuracy: Cobb (1972, MF-413), loc. 62. This placer mine is along Troublesome Creek, just below the mouth...cinnabar, galena, gold Gangue minerals: Geologic description: By 1912, placer gold was found in Troublesome...(Prindle and Katz, 1913, p. 146). Both prospecting and mining have been reported (Mertie, 1934, p. 192). A sample...magnetite, ilmenite, picotite, pyrite, cinnabar, gold, garnet, galena, zircon and cassiterite (Waters |  | | Conference Proceedings (Volume) | | copper mine in the very north of Sweden. Mining operations started in 1968 and the current mining depth...copper, 51 700 tonnes of silver and 1,9 tonnes of gold. Photo: Olof Martinsson, LuleĆ„ University of Technology...the Bathtub intrusion (Duluth Complex, Minnesota, USA) .. ...............................................Kawishiwi intrusion, Duluth Complex, Minnesota, USA . . ...............................................Norman Pearson, Jan Kramers & Dmitry Kuzmin Orogenic gold deposits .. ................................... |  | Pilote, Jean-Luc, Piercey, Stephen J., Brueckner, Stefanie M., Grant, David (2016) Resolving the Relative Timing of Au Enrichment in Volcanogenic Massive Sulfide Deposits Using Scanning Electron Microscopy-Mineral Liberation Analyzer: Empirical Evidence from the Ming Deposit, Newfoundland, Canada. Economic Geology, 111 (6) 1495-1508 doi:10.2113/econgeo.111.6.1495 | Journal (article/letter/editorial) | | DubĆ© et al., 2007b; Mercier-Langevin et al., 2007, Mount Read Volcanics: McPhie and Gemmell, 1992). The nature...Sou 5528000m N 414 Ming Main Mine rte To Baie Ve Rambler Mine Little nd ler Po Ramb Rambler...Granodiorite (434 - 430 Ma) Granodiorite Ming Main Mine 1807 zone k Snooks Arm Group (Ordovician) Intrusions...Englandās Brook Broo Highway and highway number Mine location Mafic epiclastic rocks, black shale Rhyolite...horizon with significant Cu, Ag, and Au contents (11.7 wt % Cu, 17.6 g/t Ag, and 2.7 g/t Au over 0.45 m) |  | | Journal (article/letter/editorial) | | minerals Article Ag-Pb-Sb Sulfosalts and Se-rich Mineralization of Anthony of Padua Mine near PolicĢanyāModel...of Silver Lodes in the Historic KutnĆ” Hora Ag-Pb Ore District, Czech Republic Richard Pažout 1, *, JirĢĆ...associated with selenides and previously unknown Ag-Pb-Sb, Ag-Sb and Pb-Sb sulfosalts has been discovered...veins in the Anthony of Padua mine near PolicĢany, KutnĆ” Hora ore district, central Bohemia, Czech Republic...clausthalite. The previously unknown sulfosalts from KutnĆ” Hora are identified: Ag-excess fizĆ©lyite, fizĆ©lyite |  | | Journal (article/letter/editorial) | | Mineralization in the PrĢĆbram Uranium and Base-Metal District (Czech Republic) Pavel Å kĆ”cha 1,2, *, JirĢĆ Sejkora...Sejkora 2 and Jakub PlĆ”Å”il 3 1 2 3 * Mining Museum PrĢĆbram, Hynka KlicĢky Place 293, PrĢĆbram VI, 261...mineralization in the PrĢĆbram uranium and base-metal district (Central Bohemia, Czech Republic) bound to uraninite...selenide mineralization in the PrĢĆbram uranium district is bound to the border of the carbonate-uraninite...association of selenides from the uranium ore district Niederschlema-Alberoda in the Saxonian part of |  | | Journal (issue) | | Update on the mineralogy of the Majuba Hill mine, Pershing County, Nevada ..................................Interest and collecting activity at the Majuba Hill mine have increased since the publication o f the initial...(Jensen, 1985). Information on new discoveries at the mine, as well as on certain aspects that were left vague...presented here. As o f October, 1991, access to the mine is tenuously unrestricted. INTRODUCTION Several...have held the Majuba Hill property in Pershing County, Nevada, since Gulf Chemical relinquished it, hoping |  | | Journal (article/letter/editorial) | | the Hackett River Main Zone, Nunavut, Canada: An Ag- and Pb-enriched Archean Volcanogenic Massive Sulfide...compared to other such deposits of similar age, with Ag grades up to 3,000 g/t. The deposits are hosted by...sphalerite contain negligible Ag and in type 2, Bi-Ag-(Pb) sulfides, Ag-Bi-Seāenriched galena and chalcopyrite...dominant Ag hosts. Within type 3, Ag-rich tetrahedrite (freibergite) and galena are the main Ag hosts.... In type 4, Ag is hosted in disseminated electrum and freibergite, and within type 5 mineralization, |  | | Book | | under Professor Shigeru Nishio in the Department of Mining. In 1944 r became an associate professor, and in...advisor to the Central Research Laboratory of Mitsui Mining and Smelting Company Ltd. During these 40 years...essential. The geology of ore deposits, especially mining geology, begins outside in the field and must finally...future development of economic geology as well as mining geology from both academic and practical viewpoints...many of my former students in the Departments of Mining and of Mineral Development Engineer- ing, University |  | | Report (issue) | | with the wo rk b e ing done . The C oll e g e of Mine s i s out standing fo r its in s truc tion, exp...imentation, and r e s ea r c h in g eology and mine ralogy and in mining and metallurg ic al engin e e r ing ....with the Arizona B u r eau of Mine s and the United State s B u r eau of Mine s , both of which have offic...c ontribution s to the mine ral s c i enc e s , the C olo r ado School of Mine s , in 1 9 2 8 , c on Ā...hi s va s t knowl e dg e and expe r ienc e to the mine r al s indu stry in hi s c apac ity as g eolo g |  | | Journal (article/letter/editorial) | | economic copper enrichment and of bismuth minerals. Gold is undoubtedly in part, if not totally, related...92% Cu, 0.77% Pb, 2.30% Zn, 0.58 g/t Au and 29 g/t Ag (Leca and Leistel 1993; Leistel et al. 1994). They...Aznalc611ar (83 Mt), Tharsis (110 Mt) and Sotiel (75 Mt). Mining over the last hundred years has produced about...46% S, 0.7% Cu, 4% Pb + Zn, 0.8 g/t Au, and 30 g/t Ag (Strauss and Madel 1974; Carvalho et al. 1976). Alloy...are fairly low, although when compared with the Mount Read Belt of Tasmania (Australia) with 148 Mt in |  | Kitakaze, A., Itoh, H., Komatsu, R., Higuchi, Y. (2012) Baumstarkite from the Koryu Mine, Hokkaido, Japan. The Canadian Mineralogist, 50 (1) 101-109 doi:10.3749/canmin.50.1.101 | Journal (article/letter/editorial) | | 3749/canmin.50.1.101 BAUMSTARKITE FROM THE KORYU MINE, HOKKAIDO, JAPAN Arashi KITAKAZE Yamaguchi University...as aggregates of euhedral crystals in the Koryu mine, Hokkaido, Japan. The optical properties, chemical...al. (2002) based on samples from the San Genaro mine (Huancavelica department, Peru). A crystal structure...(Sugaki et al. 1984a,b) an unknown Ag-Sb-As sulfosalt mineral from the Koryu mine in Hokkaido Japan was described...system Ag 2SSb2S3-As2S3 are discussed. The Koryu mine in Hokkaido, Japan, is an epithermal gold-silver |  | | Journal (article/letter/editorial) | | 1007/s00126-019-00895-3 INVITED PAPER Divining gold in seafloor polymetallic massive sulfide systems...The concentrations and distribution, especially of gold and silver, in associated seafloor massive sulfide...deposits around the world show a large range of gold and silver grades, in part reflecting strong buffering...undersaturated with gold and silver, and solubilities can be orders of magnitude higher than the Au and Ag concentrations...measured in the corresponding fluids. Precipitation of gold during conductive cooling of mid-ocean ridge black |  | Zhou, Haoyang, Sun, Xiaoming, Wu, Zhongwei, Yang, Tianjian, Li, Dongsheng, Ren, Yingzhi, Liu, Qiaofen, Zhu, Kunjie, Yu, Haijun (2018) Mineralogy of Bi-sulfosalts and tellurides from the Yaoan gold deposit, southwest China: Metallogenic implications. Ore Geology Reviews, 98. 126-140 doi:10.1016/j.oregeorev.2018.05.004 | Journal (article/letter/editorial) | | Mineralogy of Bi-sulfosalts and tellurides from the Yaoan gold deposit, southwest China and its metallogenic implications...Mineralogy of Bi-sulfosalts and tellurides from the Yaoan gold deposit, southwest China and its metallogenic implications... Mineralogy of Bi-sulfosalts and tellurides from the Yaoan gold deposit, southwest China and its metallogenic implications...tellurides are commonly present in many hydrothermal gold mineral systems, and can provide important physicochemical...auriferous specular hematite veins in the Yaoan gold deposit (southwest China) of the Jinshajiang-Red |  | | Journal (article/letter/editorial) | | galena), deformed and metamorphosed while the PbāAg-rich sulfosalt-bearing veins and pods that are irregularly...relations of Cu-free meneghinite and semseyite in the PbāAg-rich ores constrain temperatures at >550Ā°C and <300Ā°C...hydrothermal alteration, and (4) high contents of Zn, Ag (and Sb) in galena, indicate partial melting in the...leading to concentration of exotic rare metals such as Ag, Au, As, Sb, Bi, Hg, Te, and Tl, that are characteristically...grade of 13.6% Zn, 1.9% Pb, 9.58% Fe, and 45 ppm Ag (Staff HZL 1992). Ranawat et al. (1988) furnished |  | Cao, Mingjian, Qin, Kezhang, Li, Guangming, Jin, Luying, Evans, Noreen J., Yang, Xiangrong (2014) Baogutu: An example of reduced porphyry Cu deposit in western Junggar. Ore Geology Reviews, 56. 159-180 doi:10.1016/j.oregeorev.2013.08.014 | Journal (article/letter/editorial) | | (Stern et al., 2007), Santa Rita in New Mexico (USA) (AudĆ©tat et al., 2004) and Yulong ā Corresponding...the Kazakhstan plate to the west and the Junggar basin to the east (Fig. 1a). Three major Paleozoic NEāSW-trending...(Chen et al., 2010; Fig. 1b). Moreover, numerous gold deposits and/or occurrences (N300) have been discovered...ppm, 1.8 Ć 104 t Mo averaging 0.011 wt.% and 390 t Ag averaging 1.8 ppm (Zhang et al., unpublished data)...and TeāBiāAg-bearing minerals (including hessite, pilsenite, tetradymite and unkown TeāBiāAg-bearing minerals) |  | | Journal (article/letter/editorial) | | slta 9 Springer-Verlag 1993 Gold mineralisation at the Lady Bountiful Mine, Western Australia: an example...example of a granitoid-hosted Archaean lode gold deposit K.F. Cassidy* and J.M. Bennett Key Centre for...Abstract. The Lady Bountiful granitoid-hosted lode gold deposit, located in the mid-greenschist facies...predominantly by the late-tectonic Liberty Granodiorite. Gold mineralisation is localised along quartz-veined...goldrelated vein-development event, with high-grade gold mineralisation restricted to the second stage. Ore |
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