| Watanabe, Makoto, Nishido, Hirotsugu, Moriwaki, Hisamitsu, Higashimoto, Sadao, Kubota, Yoshinori (1988) K-Ar ages of skarn deposits in the inner zone of southwestern Japan. GEOCHEMICAL JOURNAL, 22 (5) 231-236 doi:10.2343/geochemj.22.231 | Journal (article/letter/editorial) | Inner Zone of skarn deposits of southwestern Japan MAKOTO WATANABE1, HIROTSUGU NISHID02*, HISAMITSU...Geology Iwakuni Geology Branch, and Mineralogy, Department, Metal Mining Geological and Kuga mine, Hiroshima...Zealand2, Agency of Japan, Iwakuni, Yamaguchi 7403, Survey Hiroshima of Japan, Mikawa-cho, University...Hiroshima Yamaguchi (Received July 2, 1988; Accepted 7304, 740-045, January 30, Japan 1989) Using...hornblende from the Ushirodani Cu-Zn skarns, Tottori Prefecture (60.7 ± 3.1, 60.8 ± 1.9 Ma); muscovite from the | | | Journal (article/letter/editorial) | SATO Geological Surveyof Japan,Yatal>e-Higashi 1-1-3,Tsukuba, Ibaraki305,Japan Abstract The Fujigatanitungsten...skarn depositsin Japan are divided into two types: a scheelitetype, including the Fujigatani deposit,and a...rocks, respectively. The reducednature of the Fujigatani deposit was presumablygeneticallyconnectedwith...by tungstenmineralization in Japan(Sato, 1977b). TIlE Fujigatani mine is locatedin the Kuga district...district, The geologyof the Fujigatani depositwas first YamaguchiPrefecture,about 50 km to the southwest reportedby | | | Journal (article/letter/editorial) | J. Japan. Assoc. Min. Petr. Econ. Geol. 74, 357-375, 1979. MINERALOGICAL STUDY ON THE WOLFRAMITE SERIES...SERIES FROM THE CHUGOKU DISTRICT , SOUTHWEST JAPAN (I) RELATIONSHIPS BETWEEN AND LATTICE CHEMICAL ...Science , Hiroshima University, Hiroshima, 730, Japan In the Chugoku the Late around mineralogical...b0, occurrence Fe/Mn natural unit influence mine a0, compositional rare the substitution of... parameters exception the of the lattice Japan, Early and relationship the with in the | | | Journal (article/letter/editorial) | ns in AcidicIgneousRocks fromSomeMiningAreasin Japan SUKUNE TAKENOUCHI AND HIDEKI IMAI Abstract Glassand...rhyolites,porphyries,and granitesfrom mining areas in Japan were investigated. Rhyolites contain various types...someporphyriesand rhyogranitic rocks from the Ohtani, Fujigatani, and lites in the vicinityof ore depositsare...a boring core drilled at the lowest level of the mine were investi- gated. They belongmostlyto type 2...porphyry occursas a stock in deeperparts of the mine. Manyof theglassinclusions in quartzphenocrysts | | | Journal (article/letter/editorial) | Paragenesisof the Huanzala Mine, Central Peru HIDEKI IMAI, MASASHI KAWASAKI, MITSUO YAMAGUCHI, AND MIKIO TAKAHASHI...SaitamaPrefecture,Japan362 Abstract The Huanzala mine is a zinc and lead mineral deposit found in the...are, from bottom to top, chert (Chimu THE Huanzala mine is situated in central Peru, about Formation), ...north-northwest-trending (Fig. •). pany, Ltd. In 1981, the mine produced900 metric The Huanzala deposit occursin...porphyrywasintrudedinto the Chimu Formationjust to the east of the mine (Fig. 1). The absoluteage of the granodioriteporphyry | | | Journal (article/letter/editorial) | deposit in Inner Mongolia, China. In the Huanggang mine, Nos. 1 to 4 Fe ore bodies are arranged along a...kilometers northeast of the Sn Ore Body of the Huanggang mine, has also been studied for comparison, and the results...50 km west of Linxi Town (Fig. 1). The Huanggang mine, operated at present by Inner Mongolia Huanggang...address: Kagoshima University, Kagoshima 8900065, Japan 1 With additional position at Beijing Institute...II zone and Sn O.B. at Skarn No. III zone in the mine were investigated, along with the Sumugou base-metal | | | Book | Tertiary skarns are known (e.g. in Malaysia and Japan) but such regions are rare. Rundkvist suggests that...syngenetic base metal deposits (e.g. Kuroko-type, Japan). (f) Similar to (e) except that transport and...metals occurring in deposits related to them in Japan (after Ishihara, 1980). some skarns, depending...related epigenetic deposits with granite types in Japan show that all the Sn and most of the W produced...on a larger scale also occurs in the Old Hickory Mine, Beaver County, Utah, U.S.A. (Hobbs,1945). Here | | | Journal (article/letter/editorial) | AIST, Central 7, Higashi 1-1-1, Tsukuba 305-8567, Japan [e-mail: s-ishihara@aist.go.jp] * Department of...739-8526, Japan ** Institute for Geo-resources and Environment, Geological Survey of Japan, AIST Central...Central 7, Higashi 1-1-1, Tsukuba 305-8567, Japan Received on April 9, 2006; accepted on July 29, 2006 Abstract:...vary from a few ppm (e.g., Kosaka mine) to more than 300 ppm (Toyoha mine). The amount of indium in all the...types. The largest one is Toyoha mine (4,700 tons In) and the Ashio mine (ca. 1,200 tons In) was found to | | | Book | G - EOLOGICAL OF THE MINERI IN JAPAN AND Hideki Imai t z0 ::a:: 0 0 � I ( CRYSTALS NOT PISTOLS...STUDIES OF THE MINERAL DEPOSITS'( GEOLOGICAL lN JAPAN AND EAST ASIA ,,.. I -I �1n .. o� ;.,. "W...GEOLOGICAL STUDIES OF THE MINERAL DEP OSITS IN JAPAN AND EAST ASIA Hideki Imai UNIVERSITY OF TOKYO PRESS...TOKYO PRESS, 1978 UTP 3044-687 59-5 I 49 Printed in Japan All rights reserved. No part of this publication...During these 40 years, I studied the ore deposits in Japan and East Asia from the geological and mineralogical | | | Journal (article/letter/editorial) | Strata-Bound Scheelite Skarns in the Riba de Alva Mine, Northeastern Portugal L. MIGUEL GASPAR† Departamento...metasediment-hosted distal scheelite skarns from the Riba de Alva mine, Barca de Alva-Escalhão region, northeastern Portugal...1997; Gaspar and Inverno, 1998a) in the Riba de Alva mine, northern Portugal, one of the scheelite-mineralized...discovery of mineralization dates back to 1948 and the mine workings, both on the surface and underground, were...from 1951 to 1978, with MIRAL and METAMERQUE as mine operators. According to the last report (METAMERQUE | | | Journal (article/letter/editorial) | Geological Survey of Japan, Higashi 1-1-1 Central 7, Tsukuba, Ibaraki 305-8567, Japan [e-mail: sato.gsj@aist...different between central Sikhote-Alin and Northeast Japan; reduced-type and oxidized-type, respectively. The...were closer together before the opening of the Japan Sea in the Miocene, may have been juxtaposed under...complex, plate reorganization, Kitakami, Northeast Japan 2. Outline of Geology 1. Introduction 2.1. Regional...Cenozoic time, but were separated by opening of the Japan Sea in the Miocene. The two regions consist mainly | | | Journal (article/letter/editorial) | red aluminousor Canada,the UnitedStates,Mexico,Japan,and Korea siliceousrocks,suchas thoseat Cantung(Dick...Copper Zinc-lead Shinyamadeposit, Kamaishimine, NE Japan Pine Creek, California MacMillan Pass (Mactung)... Canada Sasanodeposit Yoshiokamine, SW Japan Victoria mine, Nevada DouglasHill and CastingCopper mines(Yerington...(numbers refer to localities on Fig. 1) 1. Empire mine, B.C., Canada (Sangster, 1969;Haug, 1976) 2. Larap...Strawberry mine, California (Nokleberg, 1981) 5. Sangdong, Korea(John, 196•) 6. Fujigantani,SW Japan(Sato | | | Journal (article/letter/editorial) | out the initial exploration. During the Los Santos mine feasibility study, over 10,000 m of trenches and...Analcime Andalucite Andradite Anorthite Apatite Arsenopyrite Biotite Bismuth Bismuthinite Calcite Celadonite...rocks. The D facies has only been identified at mine scale and outcrops as small, irregular meter-sized...identified in the underground workings of the Los Santos mine (Fig. 4A). This pegmatitic zone contains arborescent...Apatite Scheelite Fluorite Uraninite Lollingite Arsenopyrite Pyrrhotite Chalcopyrite Sphalerite Cubanite | | | Journal (article/letter/editorial) | sulphides. The sulphides in the skarn include arsenopyrite and pyrrhotite with lesser amounts of chalcopyrite...intermediate composition (Boyle 1979; Meiner 1989). In Japan, gold is preferentially concentrated in the epidote-rich...Mountains, Yukon, and those mined at the Nickel Plate Mine, British Columbia (Lamb et al. 1957) with an average...mineralizations described here are, together with massive arsenopyrite bodies (Soler and Ayora 1989), the first gold-bearing...skarns; (4) arsenopyrite skarns; and (5) magnetite skarns. Gold has been detected in arsenopyrite, pyrrhotite | | | Journal (article/letter/editorial) | Dal'niy [31], 28) Lermontov, 29) Salau [38], 30) Fujigatani [37], 31) Rigovdarya (Ikar) [N. V. Skorobogatova]...main sulfides are pyrrhotite, chalcopyrite, and arsenopyrite; sphalerite and galena are minor (Salau, Lermontov...Kohei, 1980, Tungsten skarn deposit of Fujigatani mine, Southwest Japan: Economic Geology, Vol. 75, pp. 1066-1082 | | | Journal (article/letter/editorial) | Scheelite is associated with pyrrhotite and/or arsenopyrite, with minor chalcopyrite and other sulfide minerals;...geochemical assemblage, common presence of scheelite, arsenopyrite, amd pyrrhotite in Au-bearing zones of silicification...al. 2014). The quartz-sulfide zones contain arsenopyrite, pyrrhotite, pyrite, and chalcopyrite as well...Pyrrhotite Chalcopyrite Scheelite Sphalerite Galena Arsenopyrite Stannite Wolframite Bi-sulfides Bi-tellurides...with scheelite and disseminated pyrrhotite + arsenopyrite in the external halo (m) (polished section) | | Sui, Ji-Xiang, Li, Jian-Wei, Wen, Guang, Jin, Xiao-Ye (2017) The Dewulu reduced Au-Cu skarn deposit in the Xiahe-Hezuo district, West Qinling orogen, China: Implications for an intrusion-related gold system. Ore Geology Reviews, 80. 1230-1244 doi:10.1016/j.oregeorev.2016.09.018 | Journal (article/letter/editorial) | mineralization is largely represented by the arsenopyrite-loellingite-chalcopyrite-pyrrhotite-bornite...retrograde skarns. Gold is mostly hosted in arsenopyrite, loellingite and chalcopyrite, and has close...(>630 °C), and a depth range of 2.9 to 6.5 km. Arsenopyrite and chlorite geothermometers indicate that the...dense disseminations of fine-grained pyrite and arsenopyrite in hydrothermally altered sandstones, siltstones... MA disseminations of Au-bearing pyrite or arsenopyrite in hydrothermally altered rocks on both side | | Zhao, Chun-tao, Sun, Jing-gui, Chu, Xiao-lei, Qin, Ke-zhang, Ren, Liang, Xu, Zhi-kai, Liu, Yang, Han, Ji-long, Bai, Cheng-lin, Shu, Wang (2021) Metallogeny of the Ergu Fe-Zn polymetallic deposit, central Lesser Xing’an Range, NE China: Evidence from skarn mineralogy, fluid inclusions and H-O-S-Pb isotopes. Ore Geology Reviews, 135. 104227pp. doi:10.1016/j.oregeorev.2021.104227 | Journal (article/letter/editorial) | magnetite, magnetite-sphalerite, pyrrhotite-pyrite-arsenopyrite, copper polymetallic and galena-sphalerite ore...stage (II1) is enriched in pyrite, pyrrhotite, arsenopyrite, chalcopyrite and quartz. The quartz-Pb-Zn sulfide...and arsenopyrite coexist, both of which are replaced by chalcopyrit; (J) The early arsenopyrite and pyrrhotite...of Fe-Cu sulfide, such as pyrite, pyrrhotite arsenopyrite and 3.2.1. Wall rock alterations and skarn...Nakano et al. (1994) studied 46 skarn deposits in Japan and found that the Mn/Fe ratio of pyroxene is lower | | | Journal (article/letter/editorial) | matrixmineral(stipledarea)and in veins(soliddiamonds).D. Arsenopyrite as a matrix mineral.E. Ilvaite.F. Snsphene....pyrrhotite Sn sphene Sn ilvaite pyrite}asmatrix arsenopyrite minerals Stagelid 4.45 MnO, with mostMnO valuesnear0...IV, ilvaite;MG, magnetite; Po,pyrrhotite; AS,arsenopyrite; SP,sphene; CP,chalcopyrite; PY,pyrite;SI, siderite;...be, in part, produceddurpyrrhotite-Snsphene(-arsenopyrite ) association ing stageIIA, whereasin stagelib...minerals(Fig. 4). Only pyrite vious (Fig. 8B, C). _+arsenopyrite in veinsoccurin theotherskarntypes StageIIB | | Soloviev, Serguei G., Kryazhev, Sergey G., Dvurechenskaya, Svetlana S. (2017) Geology, mineralization, and fluid inclusion characteristics of the Lermontovskoe reduced-type tungsten (±Cu, Au, Bi) skarn deposit, Sikhote-Alin, Russia. Ore Geology Reviews, 89. 15-39 doi:10.1016/j.oregeorev.2017.06.002 | Journal (article/letter/editorial) | distinct Au-As-Bi-W signature, common scheelite, arsenopyrite, and pyrrhotite in Au-bearing zones of silicification...forming the central core of the alteration zones. Arsenopyrite is the dominating sulfide mineral, and is most...scheelite is associated with most abundant early arsenopyrite, has white-blue luminescence and contains low...sphalerite. Sphalerite replaces pyrrhotite, early arsenopyrite, and chalcopyrite but contains pyrrhotite, chalcopyrite...microinclusions in chalcopyrite, partly replaces arsenopyrite, and also forms larger isolated grains in quartz | | Soloviev, Serguei G., Kryazhev, Sergey G., Dvurechenskaya, Svetlana S. (2020) Geology, mineralization, and fluid inclusion characteristics of the Agylki reduced tungsten (W-Cu-Au-Bi) skarn deposit, Verkhoyansk fold-and-thrust belt, Eastern Siberia: Tungsten deposit in a gold-dominant metallogenic province. Ore Geology Reviews, 120. 103452 doi:10.1016/j.oregeorev.2020.103452 | Journal (article/letter/editorial) | (quartz-sericite-Fe-carbonate) comprising abundant apatite and arsenopyrite followed by scheelite, chalcopyrite and other...quartzsulfide-scheelite veins and stockworks, with dominant arsenopyrite and pyrrhotite accompanied by pyrite, Bi minerals...veined and disseminated mineralization, mostly arsenopyrite, pyrrhotite, chalcopyrite, pyrite, galena, sphalerite...greater variety of sulfide and sulfosalt species. Arsenopyrite is an early mineral of this stage; it locally...generation(s) of these minerals and post-date arsenopyrite in phyllic alteration assemblages; their content | | Li, Deng-Feng, Zhang, Li, Chen, Hua-Yong, Zheng, Yi, Hollings, Pete, Wang, Cheng-Ming, Fang, Jing (2014) Ore genesis of the unusual Talate Pb-Zn(-Fe) skarn-type deposit, Altay, NW China: constraints from geology, geochemistry and geochronology. Geological Journal, 49 (6) 599-616 doi:10.1002/gj.2570 | Journal (article/letter/editorial) | galena and magnetite with minor chalcopyrite and arsenopyrite. The gangue minerals are mainly garnet, quartz...minor chalcopyrite, malachite, pentlandite and arsenopyrite. In Figure 3J, pyrite and chalcopyrite veinlets...the QC stage; abbreviations: Am—amphibole, Apy—arsenopyrite, Bi—biotite, Cal—calcite, Ccp—chalcopyrite,...1980. Tungsten skarn deposit of the Fujigatani mine, southwest Japan. Economic Geology 75, 1066–1082. Schulz...Permian–Jurassic sandstones, southern Kitakami Terrane, Japan. Sedimentary Geology 93, 85–105. Vityk, M.O., Bodnar | | Soloviev, Serguei G., Kryazhev, Sergey G., Dvurechenskaya, Svetlana S. (2017) Geology, mineralization, stable isotope, and fluid inclusion characteristics of the Vostok-2 reduced W-Cu skarn and Au-W-Bi-As stockwork deposit, Sikhote-Alin, Russia. Ore Geology Reviews, 86. 338-365 doi:10.1016/j.oregeorev.2017.02.029 | Journal (article/letter/editorial) | deposits are characterized by common scheelite, arsenopyrite, pyrrhotite in Au-bearing zones of silicification...distinguished. The early scheelite occurs in quartz-arsenopyrite assemblage locally attaining 10-15 vol.%: it...(Soloviev and Krivoschekov, 2011). The scheelite-arsenopyrite assemblage occurs mostly close to or within...Sphalerite (marmatite) replaces pyrrhotite, early arsenopyrite, and chalcopyrite but also contains pyrrhotite...to the early quartz-arsenopyrite and intermediate quartz-scheelite-arsenopyrite assemblages (type 3 inclusions) | | | 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 | | | Report (issue) | (1979). Probe analyses (1) from Broken Hill gold mine, Coromandel , New Zealand. ACANTHITE. Nikolaeva...(1979). Probe analyses (4) from Broken Hill gold mine, Coromandel, New Zealand. AGUILARITE. Sugaki et... Probe analysis, x-ray data from Sanru mine, Hokkaido, Japan. AGUILARITE. Sugaki et al., J. Jpn. Assoc...65-77 (1982). Microprobe analyses (5) from Sanru mine, Hokkaido. AGUILARITE. Vassalo Morales and Borodaev...Probe analysis, optics, x-ray data from Yamaguchi Pref., Japan. AIKINITE. Nakashima et al., J. Jpn. Assoc |
|