 | 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) | | Characteristics of SkarnDepositsandRelated Acid Magmatismin Japan HIDEHIKO SHIMAZAKI Abstract Most Japanese skarn...Cretaceousor Miocene age. The granitic rocks in Japan have been subdividedinto a magnetite-bearingand...graniticrocks, tiary; the outer zone of southwestern Japan, Miocene; papersby Ishiharaand his colleagues are...bulk chemicalcompositionexcept for ferric/ferrous Japan. As shownin the figure, eachgranitic belt ratios...rocks recognizedin the Lachlan fold belt of south- Japan. Granitic rocks in the western end of the belt (H |  | | Journal (article/letter/editorial) | | J. Japan. Assoc. Min. Petr. Econ. Geol. 73, 231-240, 1978 PHASE RELATIONS IN IN THE H20-CO2 SYSTEM...been mixtures CaO-SiOa-CO, condition is wollastonite H2O-CO2 CaO-Fe01 the SiO2-O2. formation...let among hedenbergite, us consider the wollastonite, magnetite and stability andradite, quartz...isobaric invariant point I, where the assemblage wollastonite-andradite-hedenbergite-magnetite-quartz is stable...reaction to andraite-quartz; closed symbols to wollastonite (or ferrobustamite ?)-hedenbergite. of values |  | Vlasova, D. K., Podlesskiy, K. V., Kudrya, P. F., Boronikhin, V. A., Muravitskaya, G. N. (1985) ZONING IN GARNETS FROM SKARN DEPOSITS. International Geology Review, 27 (4) 465-482 doi:10.1080/00206818509466434 | Journal (article/letter/editorial) | | (C3-P1) Granites (C3) Kuga (Japan) Fujigatani (Japan) Kagata (Japan) Kuru-Tegerek (Middle Asia) Granites...skarn-scheelite deposits of Japan. 1) Ingichke, 2) Lyangar, 3) Maykhura, 4) deposits of Japan. deposits of Middle...Middle Asia (USSR) and Japan. Table 3 presents the chemical analyses of type II zoned garnets. The pattern...sulfide-scheelite min eralization are pyroxene, wollastonite-idocrase, and andradite varieties of apo-magnesian...are garnet, pyroxene (diopside and salite), wollastonite, phlogopite, and magnetite. The garnet has a |  | | Journal (article/letter/editorial) | | composition between those of ferrobustamite and wollastonite, and quenched from 750 ° C. These experimental...immiscibility gap between ferrobustamite and wollastonite at low temperatures around 350 ° C, such as...of skarn−formation. Keywords: Ferrobustamite, Wollastonite, Hedenbergite, Hydrothermal synthesis I. は...系における合成実験の結果から，長く珪灰石連続固 溶体の一部と考えられ，鉄珪灰石 (iron−wollastonite) と呼 ばれてきた。Rutstein (1971) は，CaSiO3−CaFeSi2O6...Refractories CO., LTD., 707 Imbe, Bizen 705−8577, Japan ** Graduate School of Natural Science and Technology |  | | Book | | of mineralization. He believed the garnet + wollastonite + vesuvianite + amphibole rock was "for the...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 |  | | 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 |  | | 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) | | 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) | | Petrogenesis of theCopper-Bearing Skarnat theMasonValley Mine, YeringtonDistrict,Nevada MARCO T. EINAUDI Abstract...Abstract Skarn formation at the Mason Valley mine occurred at a depth of 2,000 m on the outer fringe of...garnet, pyroxene, and amphibole. The MasonValley mine (MVM) is ideallysuited is a small copper-bearingskarn...400 ft. The 300 and mentary and volcanicrocks. 400 mine levels were mapped on the scale 1 in. = 40 ft. Normal...SKARN, Jgd_• MASON VALLEY SKARN NEVADA LEVEL MINE 400 I M I00 •. TERTIARY JURASSIC 771 Rhyolite |  | | 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) | | out the initial exploration. During the Los Santos mine feasibility study, over 10,000 m of trenches and...Spinel Titanite Uraninite Vesuvianite Wairakite Wollastonite Wolframite Zoisite using unit activity for...for quartz, andalusite, sillimanite, kyanite, wollastonite, and calcite because they occur as pure phases...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 |  | | 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) | | PYRENEES, FRANCE E L JARALITO, SONORA, MEXICO FUJIGATANI, JAPAN CHORUH-DARION, USSR 0-i0 270-300 DAVIS...applicable to skarntype W deposits (Kings Island, Fujigatani, El Jarolito, Costabonne, Choruh-Dorion, etc...675-679. GUNTER W. D. and EUGSTER H. P. (1978) Wollastonite solubility and free energy of supereritical...trends---Evidence from the King Island (Dolphin) mine. Econ. Geol. 76, 955-960. KWAK T. A. P., BROWNW...(1980) Tungsten skaru deposits of the Fujigatani mine, southwest Japan. Econ. Geol. 75, 1066-1082. SCROCKE |  | | Journal (article/letter/editorial) | | 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...zoned from north to south: (1) idocrase with wollastonite skarns; (2) hedenbergite skarns; (3) pyrrhotite...is found at the contact with the limestone. Wollastonite has never been observed. 2. The hedenbergite...zonation corresponding to A1-Ti substitution. Wollastonite relicts have been observed within the idocrase |  | | Journal (article/letter/editorial) | | scheelite, pyroxene and garnet in proximal zone; (f) wollastonite, garnet and pyroxene in distal zone; (g) vesuvianite...Alm0.00), wollastonite, sphene, calcite and quartz (Fig. 4f). In front of the marble, wollastonite is accompanied...clinopyroxene (type I and II), garnet (type I and II), wollastonite, scheelite (type I and II), vesuvianite and...tube-shaped in clinopyroxene, tube-shaped in wollastonite, ellipsoidal and irregular-shaped in garnet...LNV (V~%10). These inclusions are observed in wollastonite, grossular and diopside in only one sample from |  | 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...deposits such as the Fujigatani Mine, Japan (Sato, 1980), the King Island mine, 455 Australia (Kwak...Tungsten–Change to underground mining and 563 description of mine-mill procedures. Canada Mining and Metallurgy Bulletin |  | 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) | | diagramsexpandat the expenseof iron-freephases (e.g.,wollastonite, anorthite)andminerals withlower partitioncoefficients...meterswide within Atan (QZ), in the absenceof wollastonite(WO) and anGroup dolomites(Figs. 3 and 4), locally...central garnet (GZ) zone (Fig. 7b). The absence of wollastonite and anorthite and the cliand increasingXCO2...sphalerite,galena,andchalcopyrite in tungstendepositsof Japan,includingKagatamine 9, group 4: •34S= 8.4), and...-4.6), Kugamine (-9.2 to -8.3), mine(-12.2 to -6.9), andKiwada mine mixed magmaticand formationalore |  | | Journal (article/letter/editorial) | | (Balıkesir Fe-Cu skarn), Demirtepe-Tahtaköprü (Bursa wollastonite-garnet skarn); and (2) skarn-type deposits associated...granitic pluton, 12 km southwest of the Karaköy wollastonite skarn (Öngen, 1992; Fig. 2). The Evciler (Ayazma)...This skarn zone occurs close to the Ayazma Cu-Au mine. Eurogold Corporation undertook geochemical surveys...(1992) Endoskarns and exoskarns of massive wollastonite with (1) main-stage diopsideandesine and an...Ti Cr Fe3+ Mg Fe2+ Mn Ca Na Sum End members Wollastonite Enstatite Ferrosalite Wt % SiO2 TiO2 Al2O3 |  | Zahedi, Azam, Boomeri, Mohammad, Nakashima, Kazuo, Mackizadeh, Mohammad Ali, Ban, Masao, Lentz, David R. (2014) Geochemical Characteristics, Origin, and Evolution of Ore-Forming Fluids of the Khut Copper Skarn Deposit, West of Yazd in Central Iran. Resource Geology, 64 (3) 209-232 doi:10.1111/rge.12037 | Journal (article/letter/editorial) | | Environmental Sciences, Yamagata University, Yamagata, Japan, 3Department of Geology, Faculty of Sciences, University...deposit is located at about 50 km northwest of Taft City in Yazd province in the middle part of the Urumieh-Dokhtar...University, 1-4-12 Kojirakawa-machi, Yamagata 990-8560, Japan. Email: nakashi@sci.kj.yamagata-u.ac.jp © 2014 The...about 120,000 tons at 1 to 10% Cu in one part of the mine (Khoie et al., 1999). Other skarn deposits in the...distributed in the southwest to northwest of Yazd City (Fig. 1). These deposits mainly occur in limestone |  | 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) | | assemblages are dominated by wollastonite, garnet, and pyroxene. Wollastonite occurs as bladed masses having...coarse-grain garnet and pyroxene, with subordinate wollastonite. Sample NB03 consists of massive coarse-grained... Pyroxene from the prograde garnet-pyroxene-wollastonite assemblage contains 51.0-53.4 wt. % SiO2, 23...MANUSCRIPT overprinting the massive garnet-pyroxene-wollastonite assemblage are dominated by hedenbergite (Di18-2Hd79-95Jo2-3;...Physical-chemical conditions of ore deposition Wollastonite and garnet from the prograde skarn of the Dewulu |  | | Journal (article/letter/editorial) | | Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan [e-mail: mohamed_elrhazi@hotmail.com] Received on...range is located ~30 km southwest of Nador, a rising city that faces the Mediterranean Sea (Fig. 1). The geology...Setolazar, Axsara, Wiksane, and Bokkoya open pits, and mine data is summarized as follows. Two layers of magnetite...very small in all open pits at the Beni Bou Ifrour mine. Calc-silicate minerals are completely absent in...sensitive elements are not included (e.g., quartz, wollastonite, and fluorite) or have end-members with insufficient |  | | Journal (article/letter/editorial) | | are end-member in composition (e.g., quartz, wollastonite, and fluorite) or have end-member equilibria..., Clark, A.H., 2006. A comparative study of wollastonite skarn genesis in the Central metasedimentary...zoning in skarn minerals at the King Island (Dolphin) mine. Econ. Geol. 76, 468–497. Leake, B.E., Woolley,...1980. Tungsten skarn deposit of the Fujigatani Mine, Southwest Japan. Econ. Geol. 75 (7), 1066–1082. 251...Bhui, U.K., Mukhopadhyay, D., 2009. Genesis of wollastonite- and grandite-rich skarns in a suite of marble-calc-silicate |
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