 | | Journal (article/letter/editorial) | | in Tsushima, Japan Shunso ISHIHARA and Akira IMAI* Abstract: Miocene granitoids of the Tsushima Islands...and S, which occur in fluid inclusions and as pyrrhotite>pyrite, respectively. Two genetic models are...K and 18O. The latter may be the case for the Tsushima granitoids, because of the low initial Sr ratio...magmatism related to the opening of the Sea of Japan. It is suggested that both basaltic and granitic...and zinc metals. Such a fluid migrated into the Taishu fracture systems, as the magma crystallized, and |  | | Journal (article/letter/editorial) | | Characterization of Magnetically Zoned Pluton, Tsushima, Japan Nobutaka SHIMADA, Youichi OHYAMA* and Hiroaki...the outcrops of the Uchiyama granitic pluton, Tsushima Islands. The pluton consists of hornblende-biotite...intrudes concordantly along an anticline axis of the Taishu Group in middle Miocene (16.1±0.5 Ma), and crops...by black mudstones of the Lower Formation of the Taishu Group, which is deltaic to shallow sea sediments...concluded that the magnetically zoned pluton at Tsushima was formed by an external volatile buffer system |  | | Journal (article/letter/editorial) | | Pluton Related to Lead-Zinc Mineralization in Tsushima, Japan Hiroaki IKEMI, Nobutaka SHIMADA* and Hitoshi...deposits (Taishu mine) in the Tsushima Islands, Japan. The pluton intrudes into the Paleogene Taishu Group...Group to form the biotite-hornfels zone, while the Taishu vein-type Pb-Zn deposits occur in fissures developed...rates in the pluton. The mineralization age of the Taishu ore deposits is obtained for the first time to...lead-zinc vein-type deposits of the Taishu mine in the Tsushima Islands were described in detail by Shimada |  | | Journal (article/letter/editorial) | | Magmas of Back-Arc Granite: Miocene Tsushima Pluton, Southwest Japan Ki-Cheol Shin1, Masanori Kurosawa1...Tsukuba, Ibaraki, Japan, 2Research Institute for Humanity and Nature, Kyoto, Japan Abstract The Middle...Middle Miocene Tsushima granite pluton is composed of leucocratic granites, gray granites and numerous...southwestern Japan, all of which formed in relation to the opening of the Sea of Japan. The Tsushima granites...back-arc area of the innermost Inner Zone of Southwest Japan, contain numerous miarolitic cavities, and show |  | | Journal (article/letter/editorial) | | Br/Cl ratios of fluid inclusions in the Tsushima granite, Japan: Significance for formation of granite-derived...Br/Cl ratios of fluid inclusions in the Tsushima granite, Japan: Significance for formation of granite-derived...Br/Cl ratios of fluid inclusions in the Tsushima granite, Japan: Significance for formation of granite-derived...University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan 2 Faculty of Pure and Applied Sciences, University... 305-8577, Japan 3 Research Institute for Human and Nature, Kyoto, Kyoto 603-8074, Japan 4 Tandem |  | | 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 |  | | Journal (article/letter/editorial) | | Science,Universityof Tokyo,Bunkyo-ku,Hongo,Tokyo113, Japan Abstract The assemblage and mode of occurrenceof...suggestthat the fco• for vein-type mineralizationin Japan is controlled by alteration mineralscommonlyoccurringin...hostrocksfor Neogenevein-typemineralizationdistrictsin Japan,it was found that many Cu-Pb-Zn-richvein-type depositsoccurin...similaritiesbetween epithermal type deposits in Japan have been carried out in vein-type depositsand active...(24) (25) (26) (27) (28) (29) (30) (31) (32) (33) Mine name Motokura Hokurhu Sanru Numanoue Kohnomai Kitami |  | | Journal (article/letter/editorial) | | Magnetite-series and Ilmenite-series Granitoids in Japan Shunso ISHIHARA1 and Takeru MORIYAMA2 1 National...Central 7, AIST, Tsukuba, Japan, and 2Toyota Tsusho Corporation, Nagoya, Japan Abstract Apatites of representative...across the Inner Zone batholith of the islands of Japan were studied in the 1970s. Czamanske et al. (1981)...granitoids of the Cretaceous to Paleogene granitoids in Japan, and the results were given briefly in Ishihara and...eight from the Sanin Belt of the Inner Zone of SW Japan. From the ilmenite-series granitoid terranes, four |  | | Journal (article/letter/editorial) | | metallogenetic provincesof Late Tertiary age in Japan (dotted area). (After T. Watanabeand S. Iwao, 1959...(25). All of the samplesexceptone from the Hitachi mine were collected from ore depositsthat belong to the...Honshu Island (main island of the JapaneseIslands) is summarizedby the GeoloigcalSurvey of Japan (9). The...situation was reversed. A subsidenceof the crust in the Japan Sea side area occurred. The districtalongthe FossaMagna...into•two major tectonicprovinces,namely Northeastern Japan and SouthwesternJapan, also subsided. A thick accumulationof |  | | 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) | | 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...in the vicinityof ore depositsare almostopaque, Taishu mines (Fig. 1). dueto theformationof the aggregate...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) | | Fluids for the NeogeneVeinsand KurokoDepositsof Japan KEIKO HATTORI AND HITOSHI SAKAI Abstract The... --50 and about --2, respectively,for the Iwami mine, southwestHonshu. These isotopic results, the salinity...(-66)OP MM (-64)MK veins KOS -AR(-62) FK OZ JAPAN SEA A KN(-70) have the same strike and ...affected by terrestrial rather than su•bmarine JAPAN ARC environments. TS(-51) •(-49) S.._.•G (-47)...OS=Osarizawa; OZ=Oizumi; SG:Seigoshi; TK - Takadama; TS = Taishu; YN = Yatani; YG = Yugashima STRATIGRAPHIC MINERALl |  | | Journal (article/letter/editorial) | | OXYGER ISOTOPE COMPOSITIONS OF CALCITE FROM THE TAISHU Pb-Zn Carbon been -8 The and .9 to -12.3 ...carbon of from isotopic of organic values Taishu exchange values Much with of from are in... Pb-Zn lie fluid Taishu range most to et composed by fO2) as the Taishu al., of +8.0 1976)...1 ore-forming hydrothermal matter deposits Taishu calcites between +10.7 the fluids of Kiyosu)*...5: from the of Taishu Echo Bay Granitic 素 でSMOWで 樹 of calcites Taishu deposits deposits |  | | Journal (article/letter/editorial) | | contain abundant framboidal and euhedral pyrite, pyrrhotite, galena and sphalerite; minor amounts of chalcopyrite...located near grain contacts with sphalerite, pyrrhotite, pyrite, chalcopyrite or gangue. I n the ores...Argentian tetrahedrites from the Taishu-Shigekuma mine, Tsushima Island. Japan. Mineral. J. 7. No. 1, 77--87... H. W. : Minerals from the Highland-Bell silver mine, Beaverdell, British Columbia, Univ. Toronto Studies |  | Imai, H., Lee, Min Sung, Iida, K., Fujiki, Y., Takenouchi, S. (1975) Geologic structure and mineralization of the xenothermal vein-type deposits in Japan. Economic Geology, 70 (4) 647-676 doi:10.2113/gsecongeo.70.4.647 | Journal (article/letter/editorial) | | andMineralization oftheXenothermal Vein-Type Depositsin Japan HIDEKI IMAI, MIN SUNGLEE,KOHEI IIDA, YOSHINORIFUJIKI...TAKENOUCHI Abstract $n-W-Cu-Zn-Pb-Ag vein depositsin Japan, belongingto xenothermalclass, occur in or in closeproximity...ikuno, and Tada mines in westernJapan and the Ashio mine in easternJapan belongto the class. The fissurescontainingvein...granitic magma. The vein materials at the Akenobe mine are as follows: Ore minerals: cassiterite, wolframite...the Ikuno, Tada, and Ash.io mines. At the Ikuno mine, the distribution of the vein materials shows a |  | | Journal (article/letter/editorial) | | subordinateamountsof arsenopyrite,tetrahedrite, and pyrrhotite Mainly galenawith geocronite,tetrahedrite, native...native As, subordinate amountsof chalcopyriteand pyrrhotite and exclusiveoccurrences of owyheeite,bournonite...minor phaseof metallizationwith a to- and 200 RL mine levels acrossthe exposedstrike tally differentparagenesis...arrangingthe data in the order of increasingatomic mine, is locallytermedthe "geocronitezone." of any The...1025-1029. 1983, Silver mineralization at Sark's Hope mine, Sark, croprobe analysesof Rajpura-Daribatetrahedrites |  | | Book | | GEOLOGY OF JAPAN Edited by Fuyuji Takai Tatsuro Matsumoto Ryuzo Toriyama UNIVERSITY OF CALIFORNIA PRESS...Angeles 1963 University of Tokyo Press Tokyo, Japan University of California Press Berkeley and Los...England © University af Tokyo Press, 1963 Printed in Japan All rights reserved. mip Preface Geology is...maps have recently been very actively published in Japan as in many other regions of the world, but they...and Mineral Resources of Japan ”, with an attached geological map of Japan on scale 1: 3,000,000, by |  | | 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...floor of the back-arc basin, back-arc rift, and island arc surrounding the Japanese Islands as well as...volcanic gas fluxes from submarine back-arc basins and island arc are estimated. These fluxes are compared with...study epithermal vein-type and Kuroko deposits in Japan. I learned from them an importance of the integration |  | | Journal (article/letter/editorial) | | sulfur isotope study on hydrothermal ore deposits in Japan that this fractionation among coexistent sulfide...-3.0 0 -3.45 -1.8 1 -1.60 -2.6 5 -3.0 1 - * Pyrrhotite present. .. Zinc metal present. The 6 34 S values...points only. At earlier times in some runs, pyrrhotite existed in the pyrite and the sphalerite formation...Isotope temp. (oC) Mines Type of deposit Kosaka, Japan· "Kuroko", stratabound sulfides deposit associated...volcanic sediments Hanaoka, Japan· py sp 6.4 6.2 go 4.7 Osarizawa, Japan· Gold -bearing Cu-chlorite |  | Sasaki, Yuka, Imaoka, Teruyoshi, Nagashima, Mariko, Nakashima, Kazuo, Sonehara, Takafumi, Yagi, Koshi, Itaya, Tetsumaru (2016) The Cretaceous Ofuku Pluton and Its Relation to Mineralization in the Western Akiyoshi Plateau, Yamaguchi Prefecture, Japan. Resource Geology, 66 (2) 85-113 doi:10.1111/rge.12090 | Journal (article/letter/editorial) | | in the Western Akiyoshi Plateau, Yamaguchi Prefecture, Japan Yuka SASAKI,1 Teruyoshi IMAOKA,1 Mariko NAGASHIMA...Engineering, Yamaguchi University, Yamaguchi 753-8512, Japan, 2Department of Earth and Environmental Sciences...Science, Yamagata University, Yamagata 990-8560, Japan, 3Kobe Branch, Hiruzen Institute for Geology and...Ltd., 1-3-28 Hyogocho, Hyogo-ku, Kobe 652-0813, Japan, 4Hiruzen Institute for Geology and Chronology Co...Ltd., 2-5 Nakashima, Naka-ku, Okayama 703-8252, Japan, and 5Research Institute of Natural Sciences, Okayama |  | | Journal (article/letter/editorial) | | STUDIES, PROVIDENCIA ZACATECAS, MEXICO • OF FLUID MINE, F. J. SAWKINS ABSTRACT In the Providenciaarea...lenses. This marker horizon within formation the mine. Mediumbedded (10-100 cm) grey and blue-grey, TARAISES...theouteredgeof thecontact zonearesmallamounts of pyrrhotite accompanied 1)ypyriteandchalcopyrite. The variable...eastof the town of Salavernalies the San Marcos mine; this ore body, emplacedin Taraises-Cupido limestone...dfroln Mr. Edward Mandefield,owner of the Rucio mine are of particularinterest,for they conSALAVERNA |  | | Book | | 5 Kuroko, Hokuroku basin, Northeastern Honshu, Japan ..................... 58 3.2.6 Laochang, Changning-Menglian...Hyogo Prefecture, Honshu, Southwest Japan .................... 79 3.4.3 Fukoku, Kyoto Prefecture, Honshu...Southwest Japan ....................... 82 3.4.4 lkuno, Hyogo Prefecture, Honshu, Southwest Japan .........District, Gifu Prefecture, Honshu, Southwest Japan ..... 83 3.4.6 Omodani, Fukui Prefecture, Honshu, Southwest...Southwest Japan ..................... 84 3.4.7 West Shropshire Orefield, England ..................... |  | | Journal (article/letter/editorial) | | Late Cenozoic Metallogeny of Southwest Hokkaido, Japan Yasushi WATANABE Mineral Resource Research Group...Tsukuba Central 7, Higashi 1-1-1, Tsukuba 305-8567, Japan [y-watanabe@aist.go.jp] Received on May 29, 2001;...magmatic style and stress field of southwest Hokkaido, Japan, and compiles deposit form, type, ore and alteration...define clearly. Southwest Hokkaido in the Northeast Japan arc (Fig. 1) is one of the best places to test the...zone c r re il t nc h Pacific plate trench Japan Nor thea st J apa Thrust fault Tohoku n ar | | | Journal (article/letter/editorial) | | Sanru 浅 mine, Hokkaido, 苣 木 彦(Asahiko 磯 部 清(Kiyoshi Isobe)** 北 風 嵐(Arashi Japan Sugaki)*...Sugaki)* Kitakaze)* Silverminerals from the Sanru mine, which is gold‑silverquartz veins of epithermal type...Fig. 1. Distribution of veins in the Sanru Bお mine. よびC)。 富 鉱 部 で は 上 記 の よ う な 縞 状構造 をな す石 英脈 の発...鏡 下 に おい て もその 鉱物 の 同定 は容 易で な い場合 が多い。 Sanru mine. A. Crustified banding quartzvein (‑30ml, Honpi)...3. Photographs of gold‑silverores from the Sanru mine. G: silverrich band (Ginguro),Q:quartz. A. Crustifiedbanding |  | | Book | | IN SEDIMENTOLOGY 26 CLAYS AND CLAY MINERALS OF JAPAN FURTHER TITLES IN THIS SERIES VOLUMES 1 , 2 ...IN SEDIMENTOLOGY 26 CLAYS AND CLAY MINERALS OF JAPAN Edited by TOSHIQ SUDQ Emeritus Professor, Tokyo...Geoscience, University of Tsukuba, Ibaragi Pref. 300-31, Japan 1978 KODANSHA LTD. Tokyo ELSEVIER SCIENTIF PUBLISHING...under t i t l e : Clays and c l a y minerals of Japan. (Developments i n sedimentology ; 26) (Kodansha...Bibliography: p. Includes index. 1. Clay--Japan. 2. Clay minerals--Japan. I. SudO, Toshio, 191111. Shimcda, |
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