 | | Journal (article/letter/editorial) | | Sulfur Isotope Study on Hg and Sb Deposits in Japan Akira IMAI, Naotatsu SHIKAZONO1, Masaaki SHIMIZU*...Hakozaki, Higashi-ku, Fukuoka 812-8581, Fukuoka, Japan [e-mail: imai@mine.kyushu-u.ac.jp] * University...University, Gofuku 3190, Toyama 9308555, Toyama, Japan 1 Present address: Department of Applied Chemistry... Kanagawa, Japan 2 Present address: Tokiwadaira-Nishikubo, Matsudo 270-2266, Chiba, Japan Received on...jamesonite and berthierite from Sb deposits in Japan are examined in order to understand metallogeneses |  | | Report (issue) | | mineral col lector, was born in Kanazawa, Ishikawa Prefecture, on August 30, 1874. Soon after his graduation...at the Arakawa Mine, Akita Prefecture. In 1909, he was promoted to Director of the Mine and held. the...then that of the Director of the Yoshioka Mine, Okayama Prefecture, for about seven years altogether. He...technology in the first half of this century in Japan. He retired from the Advisory Board of the Mitsu...such volumes as " BeitrĂ€ge zur Mineralogie von. Japan ", Neue Folge I and II (T. Ito, 1937), " Japanese |  | | Journal (article/letter/editorial) | | symmetry. Found coating miargyrite at the San Genaro mine, Huancavelica Department, Peru. Effenberger, H....pegmatites, Malkhan gem tourmaline deposit, Chikoy District, Chita region, Russia. Zagorsky, V.Y. et al. (2003):... Sierra de Cacho (Sierra de Umango) district, southwest to Bajo JagĂŒe, La Rioja, Argentina. Paar, W.H...Found in a dolomite carbonatite vein, Zhelezny iron mine, Kovdor carbonatite complex, Kola Peninsula, Russia...minerals. Found in the Geschiever vein of the Svornost mine, JĂĄchymov, southern slope of the KrusÌnĂ© hory Mountains |  | | Journal (article/letter/editorial) | | epithermal gold metallogenic provinces in Kyushu, Japan Received: 1 November 2004 / Accepted: 15 August...Abstract Kyushu Island, Japan, is located at the junction of the Southwest Japan arc and the Ryukyu arc...the Philippine Sea plate beneath the Southwest Japan arc caused development of the Hohi graben and arc-related...surrounding the Hohi graben, as is represented by the Bajo and Taio deposits. The subduction of the relatively...orthogonal convergence rate between the Southwest Japan arc and the Philippine Sea plate, resulting in a |  | | Journal (article/letter/editorial) | | Implication for the Absence of Porphyry Cu Deposits in Japan Yasushi WATANABE, Ryuya SATO* and Adi SULAKSONO...University, Akita, Japan Abstract The role of potassic alteration and associated quartz veins for porphyry...the potential of porphyry Cu mineralization in Japan. The reactions between the aqueous magmaticâhydrothermal...CretaceousâPaleogene Southwestern Japan arc and late Miocene Northeast Japan arc, potassic alteration represented...association with phyllic alteration, represented by quartz, sericite and pyrite, or chalcopyrite in chloriteâ |  | Dietrich, Andreas, Gutierrez, Ronald, Nelson, Eric P., Layer, Paul W. (2012) Geology of the epithermal AgâAu Huevos Verdes vein system and San JosĂ© district, Deseado massif, Patagonia, Argentina. Mineralium Deposita, 47 (3) 233-249 doi:10.1007/s00126-010-0327-2 | Journal (article/letter/editorial) | | epithermal AgâAu Huevos Verdes vein system and San JosĂ© district, Deseado massif, Patagonia, Argentina Andreas...# Springer-Verlag 2011 Abstract The San JosĂ© district is located in the northwest part of the Deseado...Deseado massif and hosts a number of epithermal AgâAu quartz veins of intermediate sulfidation style, including...system. Veins are hosted by andesitic rocks of the Bajo Pobre Formation and locally by rhyodacitic pyroclastic...Cajamarquilla SA, 170 Paz Soldan, Of. 501, Lima 27, Peru Bajo Pobre Formation and of 147.6±1.1 Ma for the Chon |  | | Journal (article/letter/editorial) | | Geology, v. 101, pp. 71â94 Volcanic Setting of the Bajo de la Alumbrera Porphyry Cu-Au Deposit, FarallĂłn...rhyodacitic volcano-sedimentary rocks, host the Bajo de la Alumbrera porphyry copper-gold deposit in...Argentina. Early studies of the geology of the district have underpinned the general model for porphyry...earliest group of mineralized porphyritic intrusions at Bajo de la Alumbrera. Our analysis of the volcanic stratigraphy...lesser lava units scattered widely throughout the district, and interbedded with thick and extensive successions |  | | Journal (article/letter/editorial) | | Geologists, Inc. Economic Geology, v. 100, pp. 863â886 Bajo de la Alumbrera Copper-Gold Deposit: Stable Isotope...Australia Abstract Alteration zones at the gold-rich Bajo de la Alumbrera porphyry copper deposit in northwestern...gold-mineralized potassic (biotite-K-feldspar ± quartz) core outward to propylitic (chlorite-illite-epidote-calcite)...compositions of fluids responsible for the alteration at Bajo de la Alumbrera, and the data are used to infer...intermediate argillic alteration assemblages at Bajo de la Alumbrera. Calculated ÎŽ18O and ÎŽD values of |  | | Journal (article/letter/editorial) | | also hosts the 7.1-Ma porphyryâ CuâAu deposit of Bajo de la Alumbrera. The epithermal vein system is characterised...activity ended prior to porphyryâCuâAu emplacement at Bajo de la Alumbrera, which is in turn cut by minor epithermal...predominantly of variably Mn-rich carbonates and quartz, with a few percent of pyrite, sphalerite, galena...containing clasts of quartz feldspar porphyry as well as basement rocks. Fluid inclusions in quartz related to...are practically absent in the epithermal vein. Quartz fragments in the polymictic breccia contain inclusions |  | Allen, Charlotte M., Bryan, Scott E., Campbell, Ian H., Holcombe, Rodney J., Harris, Anthony C., Palin, J. Michael (2004) ELA-ICP-MS U?Pb zircon geochronology of regional volcanism hosting the Bajo de la Alumbrera Cu?Au deposit: implications for porphyry-related mineralization. Mineralium Deposita, 39 (1) 46-67 doi:10.1007/s00126-003-0381-0 | Journal (article/letter/editorial) | | geochronology of regional volcanism hosting the Bajo de la Alumbrera CuâAu deposit: implications for...intrusion of the earliest mineralized porphyries at Bajo de la Alumbrera (8.02±0.14 and 7.98±0.14 Ma). Regional...Ma, shortly before renewed magmatism occurred at Bajo de la Alumbrera (7.10±0.07 Ma). The latest porphyry...synchronously with the mineralized porphyries at Bajo de la Alumbrera. However, their emplacement continued...06 to 6.93±0.07 Ma) after the ïŹnal intrusion at Bajo de al Alumbrera. Regional volcanism had ceased by |  | | Journal (article/letter/editorial) | | structural stock control Fish Lake Canada Bingham USA Bajo de La Alumbrera Argentina Refugio Chile Cadia Hill...volcanics OreAbundant related magnetite alteration Quartz stockwork Litho- Associated cap mineralisation... monzodiorite; Mon, monzonite; Qdi, quartz diorite; Qmon, quartz monzonite; CA, calc-alkaline; KCA, high-K...million tonnes 1 2 3 6 7 8 9 Fish Lake Bingham Bajo de la Alumbrera Refugio Cadia Hill Panguna Ok Tedi...stocks (Table 1). Several of the deposits (e.g. Bajo de La Alumbrera, Batu Hijau) display molybdenumenriched |  | | Book (volume) | | Field Trip Guide Book Vol. 6 MINERAL DEPOSITS OF JAPAN AND THE PHILIPPINES r QE 304 . A14 1992 v.6 The...Field Trip Guide Book Vol. 6 MINERAL DEPOSITS OF JAPAN AND THE PHILIPPINES The Society of Resource Geology...Tokyo 107, Japan 1992 29th IGC FIELD TRIP GUIDEBOOK Volume 6 : Mineral Deposits of Japan and the Philippines...building 9-6-41 Akasaka, Minato-ku, Tokyo 107, Japan Technical Editors Technical Reviewer: Editorial...Harufumi Noro Geological Survey of Japan 1-1-3 Higashi, Tsukuba 305, Japan Copyright Holder: The Society |  | Kojima, Shoji, San MartĂn, MarĂa Constanza, Nagase, Toshiro, Nakashima, Daisuke, Bisso, Claudio, Menzies, Andrew (2021) Distribution of gold and silver and its relation with hypogene ore minerals in the Esperanza porphyry deposit, Antofagasta Region, Chile. Resource Geology, 71 (1). 80-90 doi:10.1111/rge.12250 | Journal (article/letter/editorial) | | Museum, Sendai, Japan 3 Department of Earth Science, Tohoku University, Sendai, Japan 4 Minera Los...Email: skojima@ucn.cl Funding information Esperanza mine geologists Abstract Modes of occurrence of Au-...Los Pelambres (PerellĂł et al., 2012; Roman, 2013), Bajo de la Alumbrera (Sillitoe, 1979; Ulrich et al.,...Mpodozis et al., 1993; Marinovic and GarcĂa, 1999) and quartz-feldspar-rich Tertiary granodioritic porphyry intrusions...brownish green-colored granoblastic rocks with quartz, feldspar, amphibole, and biotite (Bisso et al |  | | Journal (article/letter/editorial) | | current ideason the genesis sentedby veinlets of quartz and K-feldspar with of porphyryore deposits. contact...'Fissurepervasivesericiticalterationand in- across,composed of quartz,K-feldspar,biotite,and cludedpatchesof silicification...copper-bearing L6pez, 1939) (Figs. 3 and 4). Abundantpyrite quartz-tourmalineveins and veinlets and a small accompanied...south. granite (sensustricto), which is madeup of quartz, Miocene alluvial gravels immediatelysouth of the...givesway outwardto freshgranite. The potassium by quartz-K-feldargonthan that of coarsemagmaticbiotite,a |  | | Journal (article/letter/editorial) | | writer's recent studies of the Saindak, Pakistan, and Bajo de La Alumbrera, Argentina, porphyry copper deposits...molybdenum around copper-gold cores at both Saindak and Bajo de La Alumbrera precludes the rigorous application...fact, of the deposits considered, only Saindak and Bajo de La Alumbrera, with molybdenum present in peripheral...CHARACTERISTICS PORPHYRY COPPER BaJo de. La Alumbrera, OF GOLD-RICH DEPOSITS Arg.entina At Bajo de La Alumbrera in...in the Faral16n Negro district, Catamarca province, northwest Argentina, an oval dacite porphyry stock |  | Vidal, Conrado Permuy, Guido, Diego M., Jovic, SebastiĂĄn M., Bodnar, Robert J., Moncada, Daniel, Melgarejo, Joan Carles, Hames, Willis (2016) The Marianas-San Marcos vein system: characteristics of a shallow low sulfidation epithermal AuâAg deposit in the Cerro Negro district, Deseado Massif, Patagonia, Argentina. Mineralium Deposita, 51 (6) 725-748 doi:10.1007/s00126-015-0633-9 | Journal (article/letter/editorial) | | sulfidation epithermal AuâAg deposit in the Cerro Negro district, Deseado Massif, Patagonia, Argentina Conrado...Berlin Heidelberg 2016 Abstract The Cerro Negro district, within the Argentinian Deseado Massif province...contains about 70 % of the AuâAg resources in the district. Mineralization consists of Upper Jurassic (155... rich initial episode (E1), an extended banded quartz episode with minor mineralization (E2), a barren...sulfide-rich bands showing crustiform-colloform quartz, adularia, and chlorite-smectite banding. During |  | Jovic, SebastiĂĄn M., Guido, Diego M., Schalamuk, Isidoro B., RĂos, Francisco J., Tassinari, Colombo C. G., Recio, Clemente (2011) PingĂŒino In-bearing polymetallic vein deposit, Deseado Massif, Patagonia, Argentina: characteristics of mineralization and ore-forming fluids. Mineralium Deposita, 46 (3) 257-271 doi:10.1007/s00126-010-0324-5 | Journal (article/letter/editorial) | | by complex sulfide mineralogy, and a late AgâAu quartz-rich vein type that crosscut and overprints the...early polymetallic sulfide-rich veins and late quartz-rich veins. The sulfiderich veins contain In Zn...mineralogy (Jovic et al. 2005; Crespi et al. 2006). The quartz-rich veins have high Ag, Au values and Ag/Au ratios...mineralization styles in the same fault system. The quartz-rich veins have similar characteristics to the...Indium-polymetallic deposits comparing different deposits from Japan (Toyoha, IkunoAkenobe, etc.) and Bolivia (Bolivar |  | | Journal (article/letter/editorial) | | Alteration Geochemistry of the Porphyry Cu-Au Deposit at Bajo de la Alumbrera, Argentina THOMAS ULRICH,â ,* ETH...geochemistry, as well as the ore mineralization history of Bajo de la Alumbrera, a world-class porphyry copper-gold...weakly mineralized or barren porphyries. Intense quartz-magnetite (±K feldspar) alteration pervades the...feldspar-destructive alteration. The intensely quartz-magnetite veined sample of quartz-magnetite alteration indicates...and have a closely overlapping distribution on the mine scale. A well-developed ore shell coincides with |  | | Journal (article/letter/editorial) | | Alteration Geochemistry of the Porphyry Cu-Au Deposit at Bajo de la Alumbrera, Argentina THOMAS ULRICH,â ,* ETH...geochemistry, as well as the ore mineralization history of Bajo de la Alumbrera, a world-class porphyry copper-gold...weakly mineralized or barren porphyries. Intense quartz-magnetite (±K feldspar) alteration pervades the...feldspar-destructive alteration. The intensely quartz-magnetite veined sample of quartz-magnetite alteration indicates...and have a closely overlapping distribution on the mine scale. A well-developed ore shell coincides with |  | | Journal (article/letter/editorial) | | Potential for Base and Precious To Metal Deposits in Japan 2020) Antonio ARRIBAS and Toshio MIZUTA Faculty...University, Akita, Japan Abstract There are no known porphyry copper deposits in Japan. Attempts were made...latter option. In this article, we focus on Akita Prefecture and the surrounding areas and consider the potential...northern Honshu and that it serves as a proxy for Japan in general. Akita is rich in mineralization styles...the late 1800s. Osarizawa, the last active vein mine, closed in 1978. Kuroko deposits, the main source |  | | Journal (article/letter/editorial) | | calcite, heulandite, and quartz in gold-bearing veins of the Olinghouse mine, Washoe County, Nevada (Castor...as small radial fibrous aggregates at the Engels mine, Plumas County, and at Crestmore, Riverside County...with sulfides. It occurs at Pozos and Pedernal, Bajo Chacones, Costa Rica, and as 2-cm needles with mesolite...prehnite and apophyllite; the Seikoshi mine, Shizuoka Prefecture on Honshu Island, and an occurrence near...near Koriyama, Fukushima Prefecture, Japan; an occurrence with quartz, pyrite, and aragonite in basalt |  | | Journal (article/letter/editorial) | | Geology Vol. 98, 2003, pp. 1535â1574 Geology of the Bajo de la Alumbrera Porphyry Copper-Gold Deposit, Argentina...772066, Eagle River, Alaska 99577 Abstract The Bajo de la Alumbrera porphyry Cu-Au deposit, Argentina...plagioclase, hornblende, biotite, and quartz, in a matrix of fine-grained quartz, K-feldspar, and minor plagioclase...Highest Cu-Au grades are associated with abundant quartz veins, secondary K-feldspar, ±magnetite, ±biotite...second phase of ore-related intrusions (Early P3 and Quartz-eye porphyry), which contain similar but generally |  | | Journal (article/letter/editorial) | | Austria The shoshonite porphyry Cu-Au association at Bajo de la Alumbrera, Catamarca Province, Argentina D...December 15, 1997; accepted September 2, 1998 Summary Bajo de la Alumbrera forms an example of a series of...deposits that are hosted by potassic igneous rocks. The Bajo de la Alumbrera porphyry coppergold deposit is situated...derived from within-plate settings. The rocks from Bajo de la Alumbrera contain average ratios of Fe203/(FeO+Fe203)...Cu-Au Assoziation yon Bajo de ia Alumbrera, Catamarca Provinz, Argentinien Bajo de la Alumbrera ist ein |  | | Journal (article/letter/editorial) | | saline water. Analcimes formed in the absence of quartz or other silica minerals- are less siliceous than...nHzO and may represent a closer approach to the quartz-analcime equilibrium over an appreciable range...from veins in mudstones at Kasukabe, Saitama Prefecture, Japan (Fig. 1, analcime 9), by Crook (Appendix to...mudstone 2700 m below surface, Kasukabe, Saitama Prefecture; aa recalculated from published 29 values (Hashimoto...example, all sedimentary analcimes that occur in quartz-free assemblages are seen to have relatively small |  | | Journal (article/letter/editorial) | | Clark, 1998), together with the Cu-Au porphyry of Bajo de la Alumbrera (Guilbert, 1995; Wall, 1997; Profett...a Cerro Atajo Bajo de la Alumbrera FarallĂłn Negro Capillitas S r ie e âČ âČ Bajo el Durazno Catamarca... 27° 20' r Bajo el Estanque Bajo de San Lucas Agua Rica 27° 30' Huasi CĂłndor Bajo las Juntas La...centers. Two Cu-Au-(Mo) porphyries, the Bajo de la Alumbrera mine (Guilbert, 1995; Wall, 1997; Ulrich et...Hug, 1999), and the FarallĂłn Negro silver and gold mine (Malvinci and LlambĂas, 1963; LlambĂas, 1970) are |
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