 | | Journal (article/letter/editorial) | | Sources and genesis of the Chinkuashih AuâCu deposits in northern Taiwan: constraints from Os and Sr...Sciences, Academia Sinica, P.O. Box 1-55, Nankang, Taipei, Taiwan, ROC b Department of Earth Sciences, National...National Cheng-Kung University, Tainan, Taiwan, ROC Received 2 June 2003; received in revised form 5 January...19 February 2004 Abstract The Chinkuashih district at northern Taiwan hosts one of the largest Au deposits...1/Os correlation, the hybrid fluids forming the Chinkuashih sulfides contained less than 30% magmatic fluid |  | | Journal (article/letter/editorial) | | Adularia-Sericite Type Hideki IMAI* Abstract: Two types of ores are recognized in the Huanzala mine, Peru...adularia-sericite type, is accompanied by pyrite body and skarn. Orthoclase (adularia), sericite and calcite...by tin, silver and tellurium minerals. Although sericite and calcite are found only at the earlier stage...acid-sulfate type separated from the adularia-sericite type by boiling in the early stage of mineralization...fo2-fs2-pH-temperature diagrams. The adularia-sericite type might correspond to the hot-water system |  | | Journal (article/letter/editorial) | | inclusion studies of the Chinkuashih high-sulfidation goldâcopper deposits in Taiwan Yunshuen Wang a,c,)...c Central Geological SurĂey, P.O. Box 968, Taipei, Taiwan, ROC b Geological SurĂey of Japan, Tsukuba...Japan Department of Geology, National Taiwan UniĂersity, Taipei, Taiwan, ROC Abstract Epithermal high-sulfidation...high-sulfidation AuâCu deposits at Chinkuashih in northeastern Taiwan are found both within Pleistocene calc-alkaline...probable magmatic derivation circulated in the Chinkuashih system. Halite-bearing inclusions which were |  | | Journal (article/letter/editorial) | | MINERALOGY OF DICKITE AND NACRITE FROM NORTHERN TAIWAN PEI YUAN CHEN 1, MING KUANG WANG2 , AND DENG 1...Science, National Taiwan Normal University, National Taiwan University, Taipei, Taiwan 2 Department of...Agricultural Chemistry, National Taiwan University, Taipei, Taiwan Abstract-Nacrite and dickite are...are found in two localities in northern Taiwan. One, containing nacrite and dickite, is associated with...a vug-filling clay in the Chinkushih (CKS) mine district near the northern coast. The other is the occurrence |  | | Journal (article/letter/editorial) | | High-sulïŹdation copperâgold lode deposits such as Chinkuashih, Taiwan, Lepanto, Philippines, and GoldïŹeld, Nevada...generated new, highly permeable fractures localized by the embrittled, altered rock. The new fractures...metal species due to vapor decompression through the new fracture array. The switch from sulfate to sulïŹde...used to distinguish them from so-called adulariaâsericite type precious and base deposits that, with a frequent...studies provided in the later discussion â Chinkuashih, Taiwan, Lepanto, Philippines, and GoldïŹeld, Nevada |  | | Journal (article/letter/editorial) | | STRUCTURES THE OF Vol.47, THE CHINKUASHIH May,1962 GOLDâCOPPER MINE, TAIWAN C.K.HUANG Department of Geology...replacement of textures the National and Chinkuashih Taiwan University structures indicative goldâcopper...that has occurred after INTRODUCTION The Chinkuashih goldâcopper deposits emplacing in Miocene sediments...1955;1960a). The active explorationcarriedout at the Chinkuashih mine since 1955 has obtained some successin findingnew...ores(Huang,1960c). 232 GoldâCopper Ores of Chinkuashih Mine,Taiwan This paper deals characteristic would |  | | Journal (article/letter/editorial) | | Red Mountain, CO6, Underground sample, Longfellow Mine, Red Mountain, Silverton, Colorado). Images: a)...geologic data. Neither can these models accommodate the new high temperature data for the SulïŹde Stage so that...geochemistry of high-sulïŹdation deposits. We then provide a new hypothesis for the origin of these important gold...magmatic ïŹuid and groundwater in high-level adulariaâsericite (so-called âlow sulïŹdationâ goldâsilver) and analogous...Stoffregen, 1987; Vennemann et al., 1993). At Chinkuashih, Wang et al. (1999) noted an abundance of vapor-rich |  | | Book | | Press (a division of Pinter Publishers) London and New York © University College, London 1991 First...and eastern Taiwan P.B. Yuan 4 The structural landforms of the Coastal Range of eastern Taiwan Jiun-Chuan...active arcâcontinent collision zone of eastern Taiwan Ping-Mei Liew, Moon-Lung Hsieh and Cheng-Kuo Lai...Extensional and compressional tectonics in central Taiwan Chia-Yu Lu, Jian-Cheng Lee and Jin-Fa Lee 7 Neotectonic...W.T. Wu Failure and stability of dip slopes in Taiwan Jiu Jiang Hung and Tzong Te Lee Large loess landslides |  | Mitchell, Andrew H. G., Myint, Win, Lynn, Kyi, Htay, Myint Thein, Oo, Maw, Zaw, Thein (2011) Geology of the High Sulfidation Copper Deposits, Monywa Mine, Myanmar. Resource Geology, 61 (1) 1-29 doi:10.1111/j.1751-3928.2010.00145.x | Journal (article/letter/editorial) | | Geology of the High SulïŹdation Copper Deposits, Monywa Mine, Myanmar Andrew H. G. Mitchell,1 Win Myint,2 Kyi...Company Limited, Mine Site, Monywa, Myanmar Abstract The 50 km2 Monywa copper district lies near the Chindwin...diatreme facies which the porphyries intrude. District-wide rhyolite dykes and domes with marginal breccias...breccias probably post-date andesite porphyries in the mine area and lack ore-grade copper. Host rocks to mineralization...possibility of porphyry-type mineralization within the district is at best highly speculative. Keywords: heap |  | Hedenquist, Jeffrey W., Matsuhisa, Yukihiro, Izawa, Eiji, White, Noel C., Giggenbach, Werner F., Aoki, Masahiro (1994) Geology, geochemistry, and origin of high sulfidation Cu-Au mineralization in the Nansatsu District, Japan. Economic Geology, 89 (1) 1-30 doi:10.2113/gsecongeo.89.1.1 | Journal (article/letter/editorial) | | , Goldfield,Nevada; Lepanto,Philippines;Chinkuashih, Taiwan;E1Indio, Chile;PuebloViejo, DominicanRepublic)...related to the Summitville Au 1987), or "adularia-sericite" (Heald et al., 1987). depositin the SanJuanMountains...Geologicmapof the Makurazaki(western)areaof the Nansatsu district(modifiedfrom Ministryof International TradeandIndustry...section (inset,a)through thecomplete Nansatsu district, from oldestmagmatism in thewestto thepresent...(Takenouchi,1983; HeIn additionto the Nansatsu district,otherdeposits denquistet al., 1988). Gold wasfirst |  | Mao, Jingwen, Li, Xiaofeng, White, Noel C., Zhao, Caisheng, Zhang, Zuoheng, Wang, Yitian, Hu, Huabin (2007) Types, Characteristics, and Geodynamic Settings of Mesozoic Epithermal Gold Deposits in Eastern China. Resource Geology, 57 (4) 435-454 doi:10.1111/j.1751-3928.2007.00033.x | Journal (article/letter/editorial) | | are mainly associated with adulariaâchalcedonyâsericite, and aluniteâkaoliniteâquartz alteration. These...in Fujian Province; So et al., 1998; and Chinkuashih in Taiwan; Tan, 1991). The Pan-Pacific and Central...Longtoushan (Guangxi Province), and Zijinshan district (Fujian Province) (Fig. 1). Wu et al. (1984) proposed...principal gangue minerals are quartz, adularia, sericite, chalcedony, calcite for the LS and IS type; and...and alunite, kaolinite, dickite, barite, sericite, fluorite and chlorite for the HS type. Most epithermal |  | | Journal (article/letter/editorial) | | elsewhere in the West Pacific, (e.g., Lepanto and Chinkuashih), are also present in the Macquarie Arc. This...an 40Ar/39Ar isotopic age of 408.7±2.4 Ma for sericite at Peak Hill (Perkins et al. 1995), the presence...characteristics of the deposit. These data contribute to a new interpretation for evolution of the Peak Hill deposit...crack-seal veins that contained quartz, pyrophyllite, sericite and kaolinite in the vein fillings developed during...from dam wall about 4 km north of the Peak Hill Mine (AMG 612350E 6382700N) cross-bedding may represent |  | | Journal (article/letter/editorial) | | Zhejiang, Fujian, Guandong, Hong Kong, Hainan, Taiwan and Guanxi and parts of Anhiu, southeastern Yunnan...along the southeastern side of mainland China, on Taiwan, and on Hainan Island, and is that part of the...on the islands of Hainan and the western side of Taiwan are of Eocene and Pleistocene age, and belong to...old dacite-hosted Chinkuashih epithermal gold deposit on the northern tip of Taiwan (Fig. 2) is the largest...deposits are both of low-sulfidation (adularia-sericite) and high-sulfidation (acid sulfate) types (Pirajno |  | | Journal (article/letter/editorial) | | magmatic-hydrothermal and hydromag- the Cabeza de Vaca district (Sillitoe and Sawkins, matic processesand therefore...deposit Childs-Aldwinklepipe in the Copper Creek district typesare generallyabsentfrom arc terranes,amag-...Granodiorite,an- Arizona desitic volcanics Ortiz, New Quartzite, pyroclas- Mexico rounded tiary rounded...Faults,joints, Quartz, albite, Fault related Sericite-cal- Pyrite tion, sericitic Calc-silicate ...Pyrite, chalcopyrite, molybdenite,bornitc Quartz, sericite, chlorite, tour- Syenite(?) body 1.8 Mr, 4.5 |  | | Journal (article/letter/editorial) | | (Casadevalland Ohmoto, 1977), the Lake City district(Slack,1980), andthe Creede district,which hasbeen the subjectof...vein mineralizationin these districts contains sericite or chlorite in association with sulfides indicative...Spain(Lodder, 1966; Vivaldi et al., 1971), and Chinkuashih,Taiwan (Huang, 1955; Wang, 1972) or with silver...-- Bachelor,C = Creede,LG -- La Garita, LC = Lake City, P contrast,the Missionaryvein is mineralogicallydis--...depositand is not discussedfurther in this report. co,o. New Mex. I a I SUMMITVILLEDEPOSIT,COLORADO: ALTERATION& |  | | Report (volume) | | Bandelier Tuff, Valles Caldera, Jemez Mountains, New Mexico An Active Geothermal System Associated with...Deposits in the Terrill Mountains Area, Holy Cross District, Churchill County, Nevada By Stephen G. Peters...simply a heat engine? Even the use of sophisticated new technologies in the post-World War II era has not...epithermal mineralization in the Holy Cross mining district. This work permits an evaluation of the mineral...ores. His results are encouraging for the use of new airborne and satellite technologies in the search |  | | Journal (article/letter/editorial) | | methods to date the metallogenic time, such as sericite Ar-Ar, zircon U-Pb, molybdenite Re-Os, with good...alteration assemblage is quartz+jarosite+alunite+illite+sericite+chlorite+calcite (Zeng et al., 2007). 40 Ar/39Ar...sulfide-quartz veins. 40Ar/39Ar plateau ages of sericite from several orogenic gold deposits (Kanggur,... 2002; Zhang, L.C. et al., 2002), an adularia-sericite-type epithermal gold-silver deposit, is hosted...plagiogranite dikes intruding gold quartzâpyriteâsericiteâcarbonateâchlorite alteration IP orogenic |  | | Journal (article/letter/editorial) | | sare locatedaboveand low sulfidation(adularia-sericite)epithermaland contactmetasomaticdepositsaroun...ascertain at Goldfieldin Nevada(Ransome,1909), Chinkuashih in Taiwan (Huang, 1955), and Lepantoin the Philippines(Garcia...BronceandSanCrist6bal, whereas adularia as well as sericite and/or illitc is CHILEAuMETALLOGENY--INTRODUCTION...aregenerallyhigherin veins carbonate, and minor sericite (Llaumett, 1980). assigned here to the pluton-relatedcategory...pluton-relatedveinsof Mesozoic agein the Segovia district,Colombia(Rodriguez and Pernett,1983), andin manypartsof |  | | Report (issue) | | cs s8 Fairleigh Dickinson University Teaneck, New Jersey Library TOO1-15M 3=115-71 Precambrian geology...1890. He obtained his B.S. from the University of New Mexico in 1915, attended the University of Iowa,...Gruner was fond of telling of its advantages over his new x-ray diffractometer, particularly regarding iron...reconnaissance of the southern part of the Taos range, New Mexico: Jour. Geology, v. 28, no. 8, p. 731-742....186-187, 190, 200, 204. The Soudan Formation and a new suggestion as to the origin of the Vermilion iron |  | | Journal (article/letter/editorial) | | Hedenquist et al. 1998; Kouzmanov et al. 2003). Quartzâsericiteâpyrite±chalcopyrite±anhydrite veins cutting through...question is now possible, by combination of the new microanalytical inclusion data with a re-interpretation...characterised and contrasted with the adularia-sericite or low-sulphidation type by Heald et al. (1987)...Colorado; see StoïŹregen 1987). c Feldspar-destructive (sericiteâ quartzâpyrite) alteration along two vertical...see Redmond et al. 2004). Similar quartzâpyriteâsericite veins variably contribute to Cu±Au ore grade in |  | | Journal (article/letter/editorial) | | mineralized zone Quartz-sulïŹde vein Meta-volcanic rocks, sericite schist Mineralogical study a b s t r a c t The...quartz-sulïŹde veins hosted by meta-volcanic rocks and sericite schist. Results examined via the CâV fractal model...lithological units namely meta-volcanic rocks and sericite schists indicating the overall accuracy of 0.56...geology, mineral exploration, resource evaluation and mine planning. Investigation of ore mineralogy and paragenetic...rocks (e.g. andesite to basaltic andesite) and sericite schist (Aliyari et al., accepted for publication) |  | Zhai, Wei, Sun, Xiaoming, Sun, Weidong, Su, Liwei, He, Xiaoping, Wu, Youliang (2009) Geology, geochemistry, and genesis of Axi: A Paleozoic low-sulfidation type epithermal gold deposit in Xinjiang, China. Ore Geology Reviews, 36 (4) 265-281 doi:10.1016/j.oregeorev.2009.04.003 | Journal (article/letter/editorial) | | Technology of China, Heifei, 230026, PR China e Axi Gold Mine, Yining, Xinjiang, 835000, PR China b c a r t i...Golden Cross in New Zealand, Ladolam and Porgera in Papua New Guinea, Chinkuashih in Taiwan, Zijinshan and...erosion. Axi is a large, low-sulïŹdation (adularia-sericite) type epithermal gold deposit discovered in 1989...northwestern China, approximately 50 km NW of Yining city. The deposit occurs in the Tulasu volcanic fault-basin...overlie the basement. In the vicinity of the Axi mine, the total thickness of the Dahalajunshan Formation |  | Watanabe, Makoto, Nishido, Hirotsugu, Hoshino, Kenichi, Hayasaka, Yasutaka, Imoto, Nobuhiro (1998) Metallogenic epochs in the Inner Zone of southwest Japan. Ore Geology Reviews, 12 (4) 267-288 doi:10.1016/s0169-1368(98)00002-x | Journal (article/letter/editorial) | | hydrothermal clay deposits of kaolin, pyrophyllite, and sericite associated with pre-ilmenite series granitoids...Molybdenite-bearing veins and replacement-type sericite deposits are characteristics of the magnetite...microfossils such as radiolarians and conodonts, and new radiometric age data reported here, indicate strongly...Ćœe.g., Kinosaki, 1963; Fujii et al., 1976. and sericite deposits Ćœe.g., Ishihara et al., 1980; Kitagawa... substantiating our new metallogenic age subdivisions. This article presents new geochronologic data |  | | Report (chapter) | | the western U.S.A., Japan, the North Island of New Zealand, the Philippines, Fiji and Spain are described...vein deposit of epithermal type, about which much new information has recently become available. The term...2400 km from the U.S. border to south of Mexico City (Fig. 1). This is the greatest known concentration...zinc and copper. According to an analysis of the district undertaken by Geyne and co-workers, 9 the volcanic...carbonatization fringing the veins. At Tayoltita, San Dimas district (Fig. 1), volcanic rocks and an intercalated conglomerate |  | Arribas, Antonio, Rytuba, J.J., Rye, R.O., Cunningham, C.G., Podwysocki, M.H., Kelly, W.C., Arribas, Antonio, McKee, E.H., Smith, James G. (1989) Preliminary study of the ore deposits and hydrothermal alteration in the Rodalquilar caldera complex, southeastern Spain. Open-File Report Vol. 1989 (89-327) US Geological Survey doi:10.3133/ofr89327 | Report (issue) | | alunite-jarosite veins are extensive throughout the district to a depth of about 50 m. Stable isotope data...Gata veins suggest that they formed by adularia-sericite type epithermal mineralization. The light blue...to the north of the image surrounding the Palai Mine, 2 km west of the town of Carboneras (north of the...discussed further in this study. The Rodalquilar district can be divided into two major areas of very intensely...altered and mineralized area around the (Maria Josefa mine, Fig. 1). The three areas, Maria Josefa, Cinto, |
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