 | | 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 |  | | 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 |  | 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...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...kaolinite gangue. Ore minerals are argentite and electrum, together with pyrite, sphalerite, galena, chalcopyrite |  | 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-...early-stage chalcopyrite contains fine-grained electrum (Au68Ag32 - Au81Ag19) and hessite (Ag2Te), and... These features suggest that the fine-grained electrum and hessite are products exsolved in the cooling...metals. KEYWORDS chalcopyrite, Cu-Au correlation, electrum, Esperanza porphyry deposit, microanalyses 1 |  | 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...Patagonia . Argentina Introduction The Cerro Negro district is located at the northwestern margin of the Deseado...2003; EchavarrĂa et al. 2005). The Cerro Negro district comprises a large (âŒ26,500 ha) area that was explored |  | | 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) | | sources of gold mineralization in the Marmato mining district, NW Colombia: A MioceneâPliocene epizonal gold...gold mineralization occurs in the Marmato mining district, within the Calima Terrain of the Setentrional...arsenopyrite, pyrrhotite, argentite and native gold/electrum. Sericitized plagioclase from a porphyry dacite...Elsevier B.V. All rights reserved. Keywords: Marmato district; Colombia; Geochronology; Gold; Andes â Corresponding...505â518 1. Introduction The Marmato gold mining district is located in the Setentrional Andes of Colombia |  | | Journal (article/letter/editorial) | | best known deposits are in the Cerro Vanguardia district where vein systems occur over a 350 km2 area and...for more than 14 km. Geological mapping of the district has resulted in the definition of over 140 km...Laguna Guadalosa ĆœPanza and de Barrio, 1988. and Bajo Pobre ĆœNullo and Panza, 1991. were discovered. Exploration...unconformably overlies andesitic and basaltic rocks of the Bajo Pobre Formation. Significant igneous activity in...southernmost Deseado Massif outcrops Ćœtuffs of the Gran Bajo de San Julian area.. The Middle to Upper Jurassic |  | Ford, A., Hagemann, S.G., Fogliata, A.S., Miller, J.M., Mol, A., Doyle, P.J. (2015) Porphyry, epithermal, and orogenic gold prospectivity of Argentina. Ore Geology Reviews, 71. 655-672 doi:10.1016/j.oregeorev.2015.05.013 | Journal (article/letter/editorial) | | deposits such as those in the El IndioâPascua gold district which hosts the Veladero and Pascua-Lama high...side of the border), and the Deseado Massif gold district which hosts, amongst others, the Cerro Vanguardia...Northwestern Argentina, CulampajĂĄ, FarallĂłn Negro-Bajo de la Alumbrera, El IndioâPascua, Nevados del Famatina...Massif. Below a brief description of the regional district geology and deposit setting is provided. For a...Hagemann (2011a). 2.1. North-western Argentina gold district in Juyuy, Salta and Catamarca provinces (Orogenic) |  | | Book | | been carried out. Epithermal vein-type deposits in Japan have also been well-studied. More than 1,000 papers...on Kuroko and epithermal vein-type deposits in Japan will be summarized in Chapter 1. The descriptions...study epithermal vein-type and Kuroko deposits in Japan. I learned from them an importance of the integration...fluid inclusion studies of vein-type deposits in Japan were especially valid and useful to writing this...On the origin of Kuroko of the Kosaka mine. J. Geol. Soc. Japan, 26, 107-132 (in Japanese). Ohmoto, H |  | | 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 |  | 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) | | Indium-polymetallic deposits comparing different deposits from Japan (Toyoha, IkunoAkenobe, etc.) and Bolivia (Bolivar...studied In-rich polymetallic veins from the Freiberg district, Germany, defining temperatures between 250° and...Indium concentration reported is the Toyoha deposit, Japan, being one of the worldâs largest leadâzincâ copperâindium...concentrations in the polymetallic veins from Freiberg district, Germany show a wide range between 0.1 and 1,560...consists of the Bajo Pobre, Cerro LeĂłn, Chon Aike and La Matilde Formations. The Bajo Pobre Formation |  | | Journal (article/letter/editorial) | | lattice-bladed textures. Ore minerals include electrum, Ag-rich sulfosalts (freibergite), pyrite, galena...approximately 130 km northwest of the Cerro Vanguardia Mine and 150 km northeast of Gobernador Gregores town...signature. This volcanic suite is represented by the Bajo Pobre and Chon Aike Formations, sometimes with interdigitated...al., 2001; Guido, 2004; Ruiz et al., 2008). The Bajo Pobre Formation is composed mostly of lava ïŹows...1. The principal ore minerals are native gold, electrum, native silver and argentite, tetrahedrite, galena |  | | Journal (article/letter/editorial) | | veins cut basement rocks. In the Cañada Honda district, the most important mineral deposits are the Diente...(4) Sierra del Morro. Tres Cerritos-La Carolina district The Tres Cerritos volcanics, formed 8.2 Ma, erupted...setting is similar to that for the epithermal gold district of Wau, Papua New Guinea (Sillitoe et al., 1984)...Comparing the high K2O Cañada Honda-Cerros Largos district Several domes, lava flows, and minor volcaniclastic...radiometric data are lacking for the Canada Honda district, field evidence and scarce geochemical data (Table |  | Liang, Yi, Wang, Guogang, Liu, Shengyou, Sun, Yuzhen, Huang, Yonggang, Hoshino, Kenichi (2015) A Study on the Mineralization of the Woxi Au-Sb-W Deposit, Western Hunan, China. Resource Geology, 65 (1) 27-38 doi:10.1111/rge.12053 | Journal (article/letter/editorial) | | University, Higashi-Hiroshima, Japan and 2Geological Section of the Woxi Mine, Chenzhou Mining Group, Hunan...antimony were about 40,000 tons in 2010 (from the mine data). Scheelite is the second one from which tungstate...Hiroshima University, Higashi-Hiroshima 739-8526, Japan. Email: D122873@hiroshima-u.ac.jp © 2014 The Society...1999a). 2.2 Local geology In the Woxi mining district, lithological units include the Cretaceous formation...2a). A number of minor faults also occur in the district (Fig. 4), commonly cutting ore veins. Many small-scaled |  | | Journal (article/letter/editorial) | | gold, which occurs in patches of very auriferous electrum (Au > 75 wt.%), was transported by chloride complexes...[Au(HS)2Ăż ] and is contained in Ag- and Hg-rich electrum (up to 61.0 and 30.5 wt.% respectively) and/or...and also in determining the Ag content of the electrum. This antithetic behaviour of the gold in the... As  Tl  Hg), en posicioĂn distal o bloqueada bajo los sulfuros masivos. El primer tipo se localiza...sulfuros masivos; el oro, que aparece como manchas de electrum muy aurÔà fero (Au > 75%), fue transportado por |  | Andrada de Palomera, Pablo, van Ruitenbeek, Frank J.A., van der Meer, Freek D., FernĂĄndez, RaĂșl (2012) Geochemical indicators of gold-rich zones in the La Josefina epithermal deposit, Deseado Massif, Argentina. Ore Geology Reviews, 45. 61-80 doi:10.1016/j.oregeorev.2012.01.001 | Journal (article/letter/editorial) | | is always anomalous. Therefore, each deposit or district should be studied separately to know which elements...of the volcanic suite is composed of rocks of the Bajo Pobre and Cerro Leon Formations, which are mainly...a syn-rift stage (Giacosa et al., 2010). In the Bajo Pobre Formation, the predominant rocks are lavas...intrusions, which are likely intrusive equivalents of the Bajo Pobre Formation (de Barrio et al., 1999; Jovic et...are overlain by the Cretaceous Bajo Grande and Baquero Formations. The Bajo Grande Formation, of Barremian |  | Corona-ChĂĄvez, Pedro, Maldonado, Roberto, Ramos-Arroyo, Yann RenĂ©, Robles-Camacho, Jasinto, Lozano-SantaCruz, Rufino, MartĂnez-Medina, MĂłnica (2017) GeoquĂmica y mineralogĂa de los jales del distrito minero Tlalpujahua-El Oro, MĂ©xico, y sus implicaciones de impacto ambiental [Geochemistry and mineralogy of tailings from the Tlalpujahua-El Oro mining district, Mexico, and their environmental impact implications]. Revista Mexicana de Ciencias GeolĂłgicas, 34 (3) 250 doi:10.22201/cgeo.20072902e.2017.3.540 | Journal (article/letter/editorial) | | g/ton) muestran valores mĂĄs altos a los del LMP de bajo riesgo. Sin embargo, Ă©stos valores se observan dispersos... asĂ como en general que los jales mostraron un bajo riesgo en la generaciĂłn de drenaje ĂĄcido de mina...MĂ©xico. ABSTRACT The tailing dumps of the mining district of Tlalpujahua and El Oro (DIMITO) were stacked...that in general the tailings show not risk of acide mine drainage generation. However, we discuss the environment...geochemistry; mineralogy; mine tailings; acid mine drainage; Tlalpujahua-El Oro Mining District; Mexico. INTRODUCCIĂN |  | | 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...The FarallĂłn Negro mining district (also known as Agua de Dionisio district; Peirano 1944; Angelelli 1984)...intensively studied, world-class porphyry deposits: Bajo de la Alumbrera (GonzĂĄlez 1975; Godeas and Segal...vein system is the most productive epithermal AuâAg mine in NW Argentina. It is operated by YMAD, a joint |  | PĂĄez, G.N., Ruiz, R., Guido, D.M., Jovic, S.M., Schalamuk, I.B. (2010) The effects of K-metasomatism in the BahĂa Laura Volcanic Complex, Deseado Massif, Argentina: Petrologic and metallogenic consequences. Chemical Geology, 273 (3) 300-313 doi:10.1016/j.chemgeo.2010.03.007 | Journal (article/letter/editorial) | | distribution of Jurassic volcanics and locations of mine sites and areas of metallogenic interest. analyzing...consists of the Bajo Pobre, Cerro LeĂłn, Chon Aike and La Matilde formations. The Bajo Pobre Formation...the feeder facies and intrusive equivalents of the Bajo Pobre Formation rocks (de Barrio et al., 1999; Jovic...complex. Pankhurst and Rapela (1995) point out that Bajo Pobre and Chon Aike formations have an identical...rhyolites cannot form by crystal fractionation from the Bajo Pobre intermediate rocks. 2.2. The Deseado metallogenic |  | | Journal (article/letter/editorial) | | followingerosionandpreservedin the centralandsouthernpart of the district,the continentalGuanajuatoConglomeratewas overlainby...previouslyknownnorthwest-striking Sierravein systemin the Cubo mine. Theseveinscut the Peregrinarhyolite domelocatedin...severalparallel gold-richveinsin the easternpart of the district parallel or occupynortheast-trending fracturesthat...fracturesandbrecciasin the northwestern part of the district andbeyondthe calderalimits.It ischaracterized...ithinthe volcaniccenterandcentral part of the district,northwestward andperipheralto the economicorebodies |  | Montoya-Lopera, Paula, Levresse, Gilles, Ferrari, Luca, Orozco-Esquivel, Teresa, HernĂĄndez-Quevedo, Gabriela, Abdullin, Fanis, Mata, Luis (2020) New geological, geochronological and geochemical characterization of the San Dimas mineral system: Evidence for a telescoped Eocene-Oligocene Ag/Au deposit in the Sierra Madre Occidental, Mexico. Ore Geology Reviews, 118. 103195 doi:10.1016/j.oregeorev.2019.103195 | Journal (article/letter/editorial) | | unam.mx 15 16 Abstract 17 18 The San Dimas district is a historical world class Ag/Au epithermal deposit...extensional setting. The formation of the San Dimas 44 district with its exceptionally rich Ag-Au mineralization...various mineralization events. 98 The San Dimas district is a historical world class Ag/Au epithermal deposit...observations of a limited portion 104 of the district (Tayoltita Block mainly; Fig. 2) and presents...the Ag/Au 112 mineralization of the San Dimas district. New petrographic and geochronological data 113 |  | Franchini, Marta, Impiccini, Agnes, Lentz, David, RĂos, Francisco Javier, O'Leary, Sol, Pons, Josefina, Schalamuk, Abel Isidoro (2011) Porphyry to epithermal transition in the Agua Rica polymetallic deposit, Catamarca, Argentina: An integrated petrologic analysis of ore and alteration parageneses. Ore Geology Reviews, 41 (1) 49-74 doi:10.1016/j.oregeorev.2011.06.010 | Journal (article/letter/editorial) | | a world-class CuâAuâMo deposit, soon to become a mine. It has an estimated resource total 797 Mt of 0...Feasibility Study Update; www. yamana.com). With the Bajo de la Alumbrera porphyry CuâAu located 40 km west...Tampakan: Rohrlach, 2003) and can be very useful for the mine development. 2. Regional geology Agua Rica is located...that are responsible in forming the porphyry CuâAu Bajo de la Alumbrera (Ulrich et al., 2001; Ulrich and...spaceâtime location along magmatic arcs for Agua Rica, Bajo de la Alumbera, and these porphyry Cu deposits may |  | | Journal (article/letter/editorial) | | at: No. 19, Beitucheng Western Road, Chaoyang District, 100029 Beijing, P.R. China. E-mail address:...States, Canada, Chile, Peru, Papua New Guinea, and Japan. Lindgren (1922, 1933) first defined epithermal...measuring the FeS in sphalerite and Ag contents of electrum (Barton and Toulmin, 1964, 1966; Barton and Skinner...Ciobanu et al., 2002; Grancea et al., 2002), Baguio district of the Philippines and Morobe goldfield of Papua...Papua New Guinea (Sillitoe, 1989), Hokkaido of Japan (Watanabe, 2002), Lachlan orogenic belt of Australia |  | TorrĂł, L., Proenza, J.A., Melgarejo, J.C., Alfonso, P., FarrĂ© de Pablo, J., Colomer, J.M., GarcĂa-Casco, A., Gubern, A., Gallardo, E., Cazañas, X., ChĂĄvez, C., Del Carpio, R., LeĂłn, P., Nelson, C.E., Lewis, J.F. (2016) Mineralogy, geochemistry and sulfur isotope characterization of Cerro de MaimĂłn (Dominican Republic), San Fernando and Antonio (Cuba) lower Cretaceous VMS deposits: Formation during subduction initiation of the proto-Caribbean lithosphere within a fore-arc. Ore Geology Reviews, 72. 794-817 doi:10.1016/j.oregeorev.2015.09.017 | Journal (article/letter/editorial) | | Dominicana, C/ JosĂ© A. Brea Peña #3, Edificio District Tower, Level 3, Ensanche Evaristo Morales, Santo...tetrahedrite, arsenopyrite/löllingite, Ag-sulfosalts and electrum). The chemical composition of sphalerite from...remobilization and re-precipitation as subordinate electrum. Solid-state mechanical transfer was TE apparently...put it into production in November of 2008. The mine is currently owned and operated by Perilya Limited...oz Ag (Trout and Chavez, 2013). Cerro de MaimĂłn mine plant processes 1,300 tpd sulfide ore and 700 tpd |
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