 | | 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-sulfidation copper–gold lode deposits such as Chinkuashih, Taiwan, Lepanto, Philippines, and Goldfield, 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 sulfide...004 assemblage characterized by alunite or pyrophyllite and a range of other aluminosilicates pervasively...studies provided in the later discussion – Chinkuashih, Taiwan, Lepanto, Philippines, and Goldfield, Nevada |  | | 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 Sulfide Stage so that...geochemistry of high-sulfidation deposits. We then provide a new hypothesis for the origin of these important gold...Stoffregen, 1987; Vennemann et al., 1993). At Chinkuashih, Wang et al. (1999) noted an abundance of vapor-rich...inclusions in alteration assemblages in the Nansatsu district, Japan, as did Jannas et al. (1999) in alunite |  | | Journal (article/letter/editorial) | | elsewhere in the West Pacific, (e.g., Lepanto and Chinkuashih), are also present in the Macquarie Arc. This...displays a distinct sub-vertical zoning with a pyrophyllite and vuggy-quartz core, that today extends about...within 50 m outward from the boundary of the pyrophyllite and vuggy-quartz core. Sulfur- and leadisotope...advanced argillic alteration minerals (e.g., pyrophyllite, muscovite and kaolinite) and high-sulfidation-state...characteristics of the deposit. These data contribute to a new interpretation for evolution of the Peak Hill deposit |  | 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) | | with P-richcores),dickitc,and/orkaolinitc_+pyrophyllite,gradingout into illitc andinterlayeredillite-smectiteclays..., Goldfield,Nevada; Lepanto,Philippines;Chinkuashih, Taiwan;E1Indio, Chile;PuebloViejo, DominicanRepublic)...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 |  | 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 Sulfidation 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 |  | Kesler, Stephen E., Russell, N., Seaward, M., Rivera, J., McCurdy, K., Cumming, George L., Sutter, J. F. (1981) Geology and geochemistry of sulfide mineralization underlying the Pueblo Viejo gold-silver oxide deposit, Dominican Republic. Economic Geology, 76 (5) 1096-1117 doi:10.2113/gsecongeo.76.5.1096 | Journal (article/letter/editorial) | | was developed by weathering of a goldquartz-pyrophyllite deposit that formed during sedimentation in...sphalerite, and quartz; minor barite, enargite,and pyrophyllite;and tracesof electrum,argentitc, colusite, ...Viejo system is similar to other gold-quartz-pyrophyllite deposits except that it contains no known mineable...resembleactive hot spring systemssuch as Wairakei, New Zealand, and its environment of formation probably...Member, on Loma la Cuaba (Fig. 1), consists of pyrophyllite-bearing rock with extensive stratiform zones |  | | 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) | | question is now possible, by combination of the new microanalytical inclusion data with a re-interpretation...adjacent host rocks to quartz+kaolinite/dickite±pyrophyllite±alunite (Summitville, Colorado; see Stoffregen...process Lepanto, Philippines Frieda River, Papua New Guinea Bor, Serbia; Recs, Hungary Maricunga Belt...(1999, Fig. 2f) Rodalquilar Buffalo deposit, Chinkuashih, Taiwan Hedenquist et al. (1994b) Spycher and Reed...publications Nansatsu district, Japan Goldfield, Nevada Summitville, Colorado Chinkuashih, Taiwan Furtei, Sardinia |  | Li, Xuanxuan, Zhou, Taofa, White, Noel C., Fan, Yu, Zhang, Lejun, Xie, Jie, Liu, Yinan, Xiao, Xin (2020) Formation of the Fanshan lithocap and implications for exploration in the Luzong Basin, Anhui Province, China. Ore Geology Reviews, 118. 103314 doi:10.1016/j.oregeorev.2020.103314 | Journal (article/letter/editorial) | | Engineering Research Center for Mineral Resources and Mine Environments, Hefei 230009, Anhui, China 3 Centre...basin is centred on the Dafanshan alunite mining district with vuggy quartz–alunite–pyrite, quartz–dickite–kaolinite...the southwest to the northeast of the Dafanshan district, Pb and 106Pb/(Na+K) in the alunite samples gradually...area may be in the northeast of the Dafanshan district, and the potential area of copper mineralization...copper / gold deposits, such as the Chinkuashih lithocap in Taiwan, China (Tan and Tao, 1994; Tao, 1997) |  | Kesler, S. E., Campbell, I. H., Smith, C. N., Hall, C. M., Allen, C. M. (2005) Age of the Pueblo Viejo Gold-Silver Deposit and Its Significance to Modelsfor High-Sulfidation Epithermal Mineralization. Economic Geology, 100 (2) 253-272 doi:10.2113/gsecongeo.100.2.253 | Journal (article/letter/editorial) | | was intruded by the Cotui stock at about 112 Ma. New U-Pb isotope analyses of zircons from quartz porphyries...diorite intrusions immediately south and west of the district. These measurements, combined with geologic relationships...other parts of the world. In this study, we report new isotopic age measurements that support a close relationship...Characteristics of the Pueblo Viejo District Los Ranchos Formation The Pueblo Viejo district is hosted by the Los Ranchos...which hosts most of the mineralization in the district, fills a basin in the upper part of the Los Ranchos |  | | Journal (article/letter/editorial) | | alteration assemblages containing kaolinite, pyrophyllite and alunite and ore mineral assemblages including...vuggy silica and surrounded by zoned kaolinite–pyrophyllite–alunite alteration. Ore in these deposits is...upward from alunite and vuggy silica, through pyrophyllite into kaolinite. Ore is hosted by veinlets and...much exploration attention. The Chinkuashih acid-sulfate deposit in Taiwan might be hosted by a PIA-type...rocks have been reported from Puerto Rico, Fiji, New Guinea, Italy and Mexico, with some of these rocks |  | 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) | | 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...Cu-Au ore district The Zijinshan Cu-Au mining district is the largest system in China. The district is located...The district has reserves of 3 Mt Cu and >100 t Au (Zhang et al., 1992). The Zijinshan district is hosted...the Bitian basin in the center of the Zijinshan district formed in two episodes; that is, Late Jurassic |  | | Journal (article/letter/editorial) | | ascertain at Goldfieldin Nevada(Ransome,1909), Chinkuashih in Taiwan (Huang, 1955), and Lepantoin the Philippines(Garcia...pluton-relatedveinsof Mesozoic agein the Segovia district,Colombia(Rodriguez and Pernett,1983), andin manypartsof...veinlets No data Quartz, sericite, available pyrophyllite, alunite, diaspore, svanbergite E1 Salvador...Apparently not Quartz sericite; elevated pyrophyllite, alunite, diaspore, In upper parts of porphyry...AnzoleagaV., O., 1988, The La Joyacopper-gold-silver district, Bolivia,in Yacimientosepitermalesen ambientesde |  | 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) | | stratabound hydrothermal clay deposits of kaolin, pyrophyllite, and sericite associated with pre-ilmenite series...Japan, and non-metallic deposits, such as kaolin–pyrophyllite and limestone deposits. In Japan, Iwasaki Ž1912...microfossils such as radiolarians and conodonts, and new radiometric age data reported here, indicate strongly... substantiating our new metallogenic age subdivisions. This article presents new geochronologic data...associated with these granitic rocks in the Kinki district, Central Japan Že.g., Yamato–Suigin, Kamio and |  | | Journal (article/letter/editorial) | | data; Cun and Ju 1999). More importantly, as major new gold resources have been delineated in many parts... but with little success (T.Z. visited Zimudang Mine 1996; J. Mao and W. Shen 1996–1998, personal communication)...Tables 2–4 and Figs. 4–6. 252 introduced detailed new regulations in February 1998 in order to bring it...suggest China may be very favorable for discovery of new, world-class gold deposits. Tectonics of China The...Northern Xinjiang gold province (<5% resource, mostly new discoveries) within the Altayshan and Tianshan orogenic |  | | 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,...suggested structures for kaolinite (1932) and pyrophyllite (1934); determined the crystal structures of...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. |  | 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...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,...the north section of the level 4 road of the Cinto Mine (Fig. 5). ' Deep drilling in the core of the Cinto |  | Kesler, S. E., Hall, C. M., Russell, N., Pinero, E., Sanchez, R. C., Perez, M. R., Moreira, J. (2004) Age of the Camaguey Gold-Silver District, Cuba: Tectonic Evolution and Preservation of Epithermal Mineralization in Volcanic Arcs. Economic Geology, 99 (5) 869-886 doi:10.2113/gsecongeo.99.5.869 | Journal (article/letter/editorial) | | pp. 869–886 Age of the Camagüey Gold-Silver District, Cuba: Tectonic Evolution and Preservation of...where batholiths are widely exposed. The Camagüey district in central Cuba violates this tenet and provides...create and expose epithermal deposits. The Camagüey district hosts the Jacinto and Florencia low-sulfidation...Camagüey batholith and stand above the paleosurface. New Ar-Ar age measurements indicate that Jacinto-type...preserved in arcs of late Cenozoic age (Fig. 1). In New Zealand, for instance, epithermal deposits of the |  | Bethke, Philip M., Rye, Robert O., Stoffregen, Roger E., Vikre, Peter G. (2005) Evolution of the magmatic-hydrothermal acid-sulfate system at Summitville, Colorado: integration of geological, stable-isotope, and fluid-inclusion evidence. Chemical Geology, 215 (1) 281-315 doi:10.1016/j.chemgeo.2004.06.041 | Journal (article/letter/editorial) | | quartz monzonite porphyry intrusion underlies the district and is cut and overlain by pyrite–quartz stockwork...the geology, mineralogy, and geochemistry of the district (Steven and Ratté, 1960; Stoffregen, 1985, 1987;...weathering of such deposits in both natural and mine-related exposure (Gray et al., 1994). Deposits having...areas of Cenozoic volcanism, such as Chinkuashi, Taiwan (Huang, 1955), Goldfield, Nevada (Ashley, 1974;...al., 1998). Isotopic studies of the Summitville district, begun in early 1984, were seminal in the development |  | | 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...entedby tourmalineand a brecciapipe.Yabricoya district,Chile.Geologypickhandleas sericitizedalongfra...dSawkins,1983), Childs-Aldwinkle,Copper Creek district (Kuhn, 1941), and Los Verdes, Buena in an exceptionally |  | | 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...and argillic alteration, with clays, alunite, pyrophyllite, diaspore, etc., accompanied by widespread silicification;...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 |  | Sahlström, Fredrik, Dirks, Paul, Chang, Zhaoshan, Arribas, Antonio, Corral, Isaac, Obiri-Yeboah, Matthew, Hall, Chris (2018) The Paleozoic Mount Carlton Deposit, Bowen Basin, Northeast Australia: Shallow High-Sulfidation Epithermal Au-Ag-Cu Mineralization Formed During Rifting. Economic Geology, 113 (8) 1733-1767 doi:10.5382/econgeo.2018.4611 | Journal (article/letter/editorial) | | minerals (e.g., alunite, dickite, kaolinite, pyrophyllite, diaspore, and pyrite) that may have areal extents...deposits such as Lepanto, Rodalquilar, Chelopech, Chinkuashih, Pierina, and Pueblo Viejo (Fig. 2). Mt. Carlton...in eastern Queensland. It formed as part of the New England Orogen during the Early Permian to Middle...also includes the Gunnedah and Sydney basins in New South Wales (Donchak et al., 2013). The Bowen Basin...Corral, unpub. data, 2018). Near the Mt. Carlton mine, the basal unit of the Lizzie Creek sequence is |  | | Journal (article/letter/editorial) | | eliminated the formation of corundum by Reaction 5, but a new phasenot observedin any Fig.5. sru photoofthe a...compositional data on alunite associatedwith pyrophyllite in aluminous metamorphic rocks. These samples...natroalunite from a "boiling pool" on White Island, New Zealand, and Aoki 2r8 STOFFREGEN AND CYGAN: Na...basisof equivocal compositional data from the Chinkuashih, Taiwan, gold-quartz-alunite deposit. Finally, we...982) Barite and alunite from the Chinkuashih gold-copperdeposits,Taiwan Acta GeologicaTaiwanica, 21, l13 |  | Peacor, Gejing Lib Donald R., Essene, Eric J., Brosnahan, David R., Beane, Richard E. (1992) Walthierite, Ba0.5[]0.5Al3(SO4)2(OH)6,and huangite, Ca0.5[]0.5Al3(SO4)2(OH)6, two new minerals of the alunite group from the Coquimbo region, Chile. American Mineralogist, 77 (11-12) 1275-1284 | Journal (article/letter/editorial) | | sAl3(SO4)2(OH)u, and huangite,Ca".rn0.sAl3(SO4)r(OH)u, two new minerals of the alunite group from the Coquimboregion...huangite, two new members of the alunite group, were found in the Tambo mining district and the El Indio...pyrite, and woodhouseitein altered wall rocks. The new alunite group minerals have spacegroup R3m, Z: 6...Douof the El Indio deposit and the Tambo mining district, bling is causedby ordering of Pb2* and vacanciesin...name doesnot representend-member material. Both new vein barite and that alunite formation utilized original |
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