| 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) | solutions data, it is calculated responsible for Fujigatani, Kiwada, and Pressure and temperature calculated...(1966) made thermodynamic cal calculations. the Japan hydrothermal 10-3.33, reducing Introduction...Locality map of the Kaneuchi, Ohtani, Takatori, Fujigatani, Kiwada and Kuga deposits. The abbreviations...deposits, Takatori, Kuga (Fig. 2) Among the Fujigatani, deposits present solutions. tungsten Kaneuchi...deposit geobarometry obtained of deposits sphalerite Scott, (1981), formation Fig. 1. Fluorine | | | 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) | SkarnDepositsin Japan TAKANORI NAKANO, Instituteof Geoscience, Universityof Tsukuba,Ibaraki305, Japan HIDEHIKO...Tokyo113,Japan AND MASAAKI SHIMIZU UniversityMuseum,Universityof Tokyo,Hongo,Tokyo113, Japan Abstract...singleminescale.On the otherhand,skarns from78 oredeposits in Japan revealregionalvariationsin the 87Sr/8aSr ratiorangingfrom0...Introduction 0361-0128/90/1069/794-2253.00 794 JAPAN: SrISOTOPE COMPOSITION OFSKARNS 795 exoskarn,...zoneof southwestern Japan,(KA) -- Kanto,KT = Kitakami,OSW= Outerzoneof southwestern Japan,(WCH) -- westernChugoku;ISTL | | | Journal (article/letter/editorial) | diagrams bars, of and hydrothermal NaCl Fujigatani and 60 wt. solutions %) Kiwada and tungsten... mixing Fujigatani, for temperatures less higher eq. hot systems sures Fujigatani NaCl of...near-linear and shown well saline mixing mixing Japan Japan bars, behavior as of solution.Introduction... Although to (e.g., 1. NaCl contain the Japan. 1986; data wt.%. construct diagrams results...applicable in than Thus to Japan this (e.g., the these deposits Fujigatani are these deposits fluid | | | 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 | | OGATA, Takeyuki, ISHIYAMA, Daizo, MIZUTA, Toshio, NAKASHIMA, Kazuo (2002) Coexistence of a Fluid Phase with Granitic Magma: Geochemical Characteristics of REE and Cu in Miyako Granite and in Scheelite-bearing Aplitic Veins at the Yamaguchi Cu-W Skarn Deposit, Iwate, Japan. Resource Geology, 52 (2) 173-186 doi:10.1111/j.1751-3928.2002.tb00129.x | Journal (article/letter/editorial) | Scheelite-bearing Aplitic Veins at the Yamaguchi Cu-W Skarn Deposit, Iwate, Japan Takeyuki OGATA, Daizo ISHIYAMA...Resources Science, Akita University, Akita 010-8502, Japan [e-mail: takeyuki_ogata@galena.mine.akita-u.ac.jp]...Science, Yamagata University, Yamagata 990-8560, Japan Received on October 9, 2001; accepted on March 22...located in the Northern Kitakami belt, Northeast Japan. The formation of the scheelite-chalcopyrite-magnetite-bearing...and scheelite-chalcopyrite-magnetite-bearing Yamaguchi skarn deposit was closely associated with the | | | 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:...but the majority is contained as an impurity in sphalerite, and tin and copper sulfides. Average grades...vary from a few ppm (e.g., Kosaka mine) to more than 300 ppm (Toyoha mine). The amount of indium in all the | | | Journal (article/letter/editorial) | data Applications of hydrothermal to ore in Japan YASUHIRO SHIBUE Geoscience Institute, Yashiro-cho...(Received March 3, 1990; Accepted May Education, Japan 9, 1991) Temperature-chloride mixing diagrams at...inclusion data of the Ohe, Toyoha, and Fujigatani-Kiwada deposits in Japan indicates that high temperature and...the Toyoha deposit; 360°C and 7.4 wt% for the Fujigatani Kiwada deposits) mixed with low temperature and...the Toyoha deposit; 250°C and 1.9 wt% for the Fujigatani Kiwada deposits). quist and Henley, 1985; Von | | | 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 | | | Journal (article/letter/editorial) | study of the Kamioka Zn-Pb skarn deposits, Central Japan H. Shimazaki 1 and M. Kusakabe 2 1 Geological Institute...Science, University of Tokyo, Hongo, Tokyo 113, Japan 2 Institute for Study of the Earth's Interior, Okayarna...Okayarna University, Misasa, Tottori Prefecture 682-02, Japan The Kamioka Zn-Pb deposits consist of...Kamioka Zn-Pb mine is located near the town of Kamioka in Gifu Prefecture, central Japan. The deposits...Hida mar- ginal belt. Jurassic granitic rocks in Japan are exposed only in the Hida region, and the region | | | 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) | Geological Surveyof Japan, Tsukuba,Japan The occurrence of fluorite deposits in Japan is limited in the...tin and tungsten mineralization within Southwest Japan. The deposits were formed near acidic igneous rocks...INTRODUCTION There are many fluorite deposits in Japan occurring in or close to acidic igneous rocks of...taken into consideration. Fluorite deposits ii~ Japan are grouped into two types based on the mineral...cassiterite, scheelite, chalcopyrite and sphalerite. The Hoei mine supplied much zinc and tin as well as | | | 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... — PYRITE — PYRRHOTITE — CHALCOPYRITE — SPHALERITE — CALCITE — Figure 1.16. The paragenetic | | | 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) | University of Tsukuba, Tsukuba-shi, Ibaraki305,Japan TAKASHI YOSHINO, Instituteof Technology, University...University of Tsukuba, Tsukuba-shi, Ibaraki305,Japan HIDEHIKO SHIMAZAKI, Geological Institute,Facultyof Science...Tokyo113,Japan AND MASAAKI SHIMIZU University Museum,University of Tokyo,Hongo,Tokyo113,Japan Abstract...whicharebasicallyiden- the pyroxenefrom the TsudaFe mine, which contical to the Cu (andFe), Zn-Pb, oxidizedW...Pb-Zb ß W-Sn- 1569 I F '• W-Mo-Cu ß J-Fe SEA JAPAN 0 42 ß 9 300km I 14, FIG. l. Localitymapof | | | 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) | 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 | | Zürcher, Lukas, Ruiz, Joaquín, Barton, Mark D. (2001) Paragenesis, Elemental Distribution, and Stable Isotopes at the Peña Colorada Iron Skarn, Colima, Mexico. Economic Geology, 96 (3) 535-557 doi:10.2113/gsecongeo.96.3.535 | Journal (article/letter/editorial) | diorite-carbonate contact in the western sector of the mine. High Ti magnetite from this zone contrasts with...veins with wide kaolinite alteration halos. In the mine area, aplitic dikes related to this intrusive event...Puerto Vallarta batholith and the El Encino iron mine areas (PantojaAlor, 1983). Sierra El Mamey, the...Peña Colorada is approximately 750 m thick. The mine-scale geologic map and 536 537 PEÑA COLORADA...volcaniclastic unit Building FIG. 2. a. Peña Colorada mine-scale geology, alteration, and mineralization. | | | Journal (article/letter/editorial) | Dal'niy [31], 28) Lermontov, 29) Salau [38], 30) Fujigatani [37], 31) Rigovdarya (Ikar) [N. V. Skorobogatova]...are pyrrhotite, chalcopyrite, and arsenopyrite; sphalerite and galena are minor (Salau, Lermontov, Ikar)...Kohei, 1980, Tungsten skarn deposit of Fujigatani mine, Southwest Japan: Economic Geology, Vol. 75, pp. 1066-1082 | | | Journal (article/letter/editorial) | identifiedby pyrrhotiteskarnwith disseminated sphalerite,chalcopyrite, andscheelite, hasreplacedthe other...formationalsulfurin connatewatersto produce skarnpyrrhotite-sphalerite-chalcopyrite andporphyrypyrrhotite.Rubidium-strontium...545øC (Fig. 5). the Kuhn showing, stibnite and sphalerite veins Fluid inclusionstudieson rare fluorite...gradessouthwardinto more (Fig.5) locatesthe uppermost sphalerite-richskarn(unit 6k) that has replacedpy- skarn...garnet+__ pyroxene(Table 2). Southof the Kuhn showing,sphalerite-richskarnbecomesdominant asa replacementof marbleaswell | | Elongo, V, Lecumberri-Sanchez, P, Legros, H, Falck, H, Adlakha, E, Roy-Garand, A (2020) Paragenetic constraints on the Cantung, Mactung and Lened tungsten skarn deposits, Canada: Implications for grade distribution. Ore Geology Reviews, 125. 103677pp. doi:10.1016/j.oregeorev.2020.103677 | Journal (article/letter/editorial) | anticline plunging to the NE and intruded by the Mine 107 Stock, a peraluminous S-type medium-grained...monzogranite (Mathieson and Clark, 1984; 108 Fig. 2). The Mine Stock (101.15 ± 0.44 to 98.2 ± 0.4 Ma from U-Pb...albite (Na), Itrongay sanidine (K), and Navegadora Mine spessartine-almandine (Mn). 174 For Ba-bearing...with, or overgrown by, minor chalcopyrite and sphalerite. Sulfides are 237 mostly anhedral and are present...dominantly of pyrrhotite. 261 Chalcopyrite and sphalerite are rare at Mactung. Chalcopyrite and pyrite | | | Journal (article/letter/editorial) | with lesser amounts of chalcopyrite, galena, sphalerite and Bi-minerals. Geothermometric and geobarometric...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...Phyrrhotite L611ingite Arsenopyrite Chalcopyrite Sphalerite Cosalite STeBi 2 phase Galena Native bismutl"...polymetallic association which includes galena, sphalerite, chatcopyrite, molybdenite and locally cosalite |
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