 | | 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...Stillwater mine (platinum, palladium, gold, rhodium, copper, and nickel), the Mineral Hill mine (gold and...the discovery and development of the Stillwater mine and the discovery of gold-copper-silver deposits |  | | Report (issue) | | DAVID W . BEATY, GARY P . LANDIS, AND TOMMY B. THOMPSON, EDITORS Leadville-type ore Sherman-type ore...minor gale na and quartz. W hite dolomite fills some ,Ā·ugs. Late narrow veinlets of quartz and marmatite...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 |  | | 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...In the Hauraki Goldfield and the western Great Basin, USA, Se-rich minerals are more abundant in provinces...epithermal AuāAg deposit in the Hauraki Goldfield of New Zealand contains a range of AgāAuāSāSe minerals |  | 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) | | and episodes Introduction Quartz vein systems in Proterozoic granite Quartz vein systems in metamorphic...Castle Dome anomaly (7) Geophysical data Review of mining and exploration activity Past production Recent...rhyolite-hosted Sn deposits Domain VII: low sulfide Au-W-quartz veins Deposit types for which no domains were delineated...rhyolite-hosted tin deposits, and low-sulfide gold-tungsten-quartz veins in the Kofa National Wildlife Refuge, southwestern...limonite pseudomorph of pyrite from the Livingston mine. The energy dispersive X-ray pattern shows the identifying |  | | Journal (article/letter/editorial) | | 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...are abundant in intermediate sulfidation quartz-carbonate veins together with zincian tetrahedrite-group...enrichment and the trace element signature involving Au, Ag, Te, Bi, Sn and Mo suggest that ore-forming components...rhyolite Emperor, Fiji Alkali basalt to trachyte Quartz-alunite, Al-phosphate, sulfate, pyrophyllite Massive-vuggy |  | 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) | | silver tellurosulphides were discovered in the Funan quartz vein-type gold deposit, East Shandong, China. One...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...alloy. Microthermometry of fluid inclusions in quartz indicates that the silver tellurosulphides were |  | | 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...sodium compounds BRI brine P phosphates C coal QTZ quartz F fluorite TLC talc GRF graphite VRM vermiculite...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...(Prindle and Katz, 1913, p. 146). Both prospecting and mining have been reported (Mertie, 1934, p. 192). A sample...LG001 Workings/exploration: Both prospecting and mining have been reported (Mertie, 1934, p. 192). Production...Production notes: Both prospecting and mining have been reported, but there is no data on production (Mertie |  | 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...dome-shaped sequence of quartzphyric rhyodacite, quartz-bearing intermediate to felsic tuff, and tuff breccia...Sou 5528000m N 414 Ming Main Mine rte To Baie Ve Rambler Mine Little nd ler Po Ramb Rambler...granodiorite, quartz-feldspar porphyry Burlington Granodiorite (434 - 430 Ma) Granodiorite Ming Main Mine 1807...Englandās Brook Broo Highway and highway number Mine location Mafic epiclastic rocks, black shale Rhyolite |  | | Conference Proceedings (Volume) | | copper mine in the very north of Sweden. Mining operations started in 1968 and the current mining depth...the Bathtub intrusion (Duluth Complex, Minnesota, USA) .. ...............................................Kawishiwi intrusion, Duluth Complex, Minnesota, USA . . ...............................................Xiao-Chun Li & Ting-Guang Lan Mesozoic quartz-vein hosted Au (Ag-Pb-Zn-Cu) mineralisation at Mineral de...evolution of the world class Siguiri orogenic gold district (Guinea, West Africa) ....................... |  | | 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 |  | | 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 (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) | | 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 (article/letter/editorial) | | andTheirImplications forOre Genesis at the Cannington Ag-Pb-ZnDeposit,MountIsaInlier,Queensland, Australia...7001,Australia Abstract TheProterozoic Cannington Ag-Pb-Zn deposit in theMountIsainlierishosted bya polydeformed...sulfideinclusions in Fe-Mn silicates andmagnetite. Quartz-rich, banded hedenbergite typesarecharacterized...2 hedenbergite veinsandassociated hedenbergite-quartz-garnet alteration that overprints compositional...t-carbonatefilledtension gashes. Siliceous Pb-Zn-Ag typeischaracterized byquartzveinsandsulfidic breccias |  | | 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 |  | | Journal (article/letter/editorial) | | STETTIN COMPLEX, WAUSAU SYENITE COMPLEX, MARATHON COUNTY, WISCONSIN. T. W. Buchholz1, A. U. Falster2, and...small crystals in late siderite-quartz-zinnwaldite replacements of an unknown mineral. Zircons are abundant...to yellow crystals are typically associated with quartz; opaque, pale gray to reddish crystals may represent...one small grain of acanthite in bismuth, and an unknown Ag-Bi sulfide. Graphite forms black metallic-appearing...metallic-appearing films and crystals in late quartz pods. Colorless to pale green, pale blue, and purple fluorite |  | | Journal (article/letter/editorial) | | 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...strong mineralogical and geochemical zoning with PbZn-Ag-Au enrichment in the outer and upper parts of the |  | 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...studies within the system Ag 2SSb2S3-As2S3 are discussed. The Koryu mine in Hokkaido, Japan, is an epithermal |  | | 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 |  | 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) | | adjacent Beiya porphyry-skarn gold deposit (related to quartz syenite porphyries) documented abundant Bi- and...regarded to be genetically linked to the Beiya quartz syenite porphyries (ca. ~36.6ā34.7 Ma; Deng et...magmatic rocks are exposed in the area, including (quartz)-syenite porphyry, biotite monzonite porphyry,... comprising the purplish to gray (feldspathic)-quartz sandstone, siltstone and mudstone from the Lower...K-feldspar, plagioclase, biotite and amphibole and minor quartz. Accessory minerals include apatite, monazite, |  | | Journal (article/letter/editorial) | | can be orders of magnitude higher than the Au and Ag concentrations measured in the corresponding fluids...result is a ZnāAu polymetallic assemblage with Au and Ag deposited at the same time together with Pb and sulfosalts...at low ĘO2 (buffered by fayalite, magnetite, and quartz) results in gold deposition at > 250 Ā°C with early...These complex systematics make prediction of Au and Ag grades difficult. However, important new data are...gold can lead to significant increases in the Au and Ag concentrations of the venting fluids and earlier |
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