 | | Journal (article/letter/editorial) | | Ore” from the Fukasawa Kuroko Deposits, Northeast Japan: Its Characteristics and Formation Process Osamu...Fukasawa kuroko-type deposits, northern Honshu, Japan. As this type of ores also occur in the marginal...uppermost part of several other kuroko deposits in Japan, the formation of brown ore appears to be repeated...(containing native gold, electrum and native silver)(Sato et al., 1981) and Shakanai deposits (Urashima and...deposits is 1. Introduction It has been noticed among mine geologists that peculiar brownish-to-greyish colored |  | | Journal (article/letter/editorial) | | of the Kuroko Deposits in Japan and Their Implications T. URABE Tokyo, Japan The most remarkable difference...difference in mineralogy of the Kuroko deposits in Japan is shown in their mineral assemblages of wall-rock...geology and mineralogy of the Kuroko deposits in Japan until now (WaTANABE 1973). In the last decade, volcanic...O 9"" JAPAN e 0 SEA HONSHU lB. 200KM Fig. 1. Distribution of the Kuroko deposits in Japan. • - -...- - - -- Unclassified (no available data). The Japan Sea side of the dashed lines and the northeastern |  | | Journal (article/letter/editorial) | | the Doyashiki Kuroko Deposits, Hokuroku Basin, Japan Satoshi KITAZONO and Hirotomo UENO Department of...Science, Kagoshima University, Kagoshima 890-0065, Japan [e-mail: gsekita@moon.sci.kagoshima-u.ac.jp] Received...the Doyashiki Kuroko deposits, Hokuroku basin, Japan for the first time. Main ore minerals are sphalerite...digenite. Small amounts of enargite, wittichenite, electrum, covellite, bornite, marcasite and hematite are...FeS contents of sphalerite and Ag contents of electrum were 0.12 to 0.18 mol %, 39.0 to 39.6 atom %, |  | | Journal (article/letter/editorial) | | type solution mineralization responsible in Japan YOSHIMICHI KAJIWARA Geological and Mineralogical...of Science, Tokyo Kyoiku University, Tokyo 112, Japan (Received August 12, 1972; in revised form February...geochemical data for the Kuroko type deposits in. Japan, an attempt has been made to calculate the concentrations...formations, particular ly in northeastern parts of Japan. In general, the deposits show a unique stratified...follows. studies on several deposits in northern Akita area show that the homogenization temperatures |  | | Journal (article/letter/editorial) | | Occurrence of Brown Ores in Kuroko-type Deposits in Japan Akira IMAI, Osamu ISHIZUKA*, Ryoichi YAMADA** and...so-called brown ore from the Kuroko-type deposits in Japan was examined. Brown ore specimens from the Kannondo...occurrences from the Fukazawa, Matsumine, Ezuri, Shakanai, and Ginzan deposits were previously reported...occurs commonly in the Kuroko-type deposits in Japan, whereas its extent is limited. The brown ore is...the Kuroko-type deposits of the Fukazawa mine, northeast Japan (Tanimura et al., 1972; Tanimura, 1974; |  | | Journal (article/letter/editorial) | | KurokoDeposits of theKosakaMine,Northeast Honshu, Japan Productsof SubmarineHot Springson Miocene Sea Floor...SATO Abstract The Kosaka mine is a productiveCu-Pb-Zn-Au-Ag mine in Japan and is locatedat the easternmargin...geologicevidence. Introduction productivemining districtsin Japan (Fig. 1). The Tn• Kuroko depositsare strataboundmassive...east of the mine (seeIsomi, 1968). They cropout about 1.5 km to the north of the mine and have been...probablyderivedfrom the Towadavolcano abmlt 10 km northeast of the mine area. , Geolopicstructure ; ,• Legend ['•"• |  | | Journal (article/letter/editorial) | | 1971 study of Shakanai No.l Prefecture, the Kuroko-ores deposits, Japan of Akita YOSHIMICHI KAJIWARA...Mineralogical of Education, Institute, Tokyo, Japan (ReceivedSeptember 13, 1970; in revisedform December...the Kuroko-oresfrom the No.I depositsof the Shakanai mine reveal that the S34Svalue of sulfide minera...in hydrothermal processes. In the present Shakanai mine, equilibria are physico-chemical paper...on these and data mechanism OUTLINE OF THE SHAKANAI No.1 an data of the No.1 involving attempt |  | | Report (chapter) | | Sato G e o l o g i c a l S u r v e y o f Japan, T o k y o , Japan ( l a t e l y , Department of Geology...553.43/.44(52) Synopsis The Kuroko deposits of Japan are predominantly massive, stratiform sulphide ores...of underlying magma. The Kuroko ore deposits of Japan are considered to be a prototype of heavy metal...constituent. The Green Tuff rocks are distributed on the Japan Sea side of the Japanese islands from Hokkaido to...50 km wide and essentially parallel to the east Japan arc system. 7 The zone is situated near the boundary |  | | Journal (article/letter/editorial) | | the so-calledGreen Tuff basins of Tertiary age in Japan. They are the youngest,least modifiedexamplesknown...personalcommunicathe broad contextof metallogenicepochsin Japan. tions. We alsodiscuss the genesisof the felsicrocks...Takeuchi (1970). Grade of crude ore (%) Name of mine Kosaka l Hanaoka t Year of Size of ore de- ...in 1972 (per month) Crude ore -- 45,000 tons mine• 25 million tons Acid leached Cu = 70 tons 1.2...of 35 million tons = 50,000 tons Fukazawa t Shakanai • Kanayamazawa 1969 Manzaku 1969 190 X 190 |  | | 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 |  | | Journal (article/letter/editorial) | | PhanerozoicZn-Cu-Pbdepositsin Japan(Kosaka,Furutobe,Shakanai)andsimilardeposits in BritishColumbia(HW mine, Lynx, Seneca)...tracemineralequilibria whichindicatea high as2(e.g., argentite-electrum, tennantite-enargite, covellite-digenite). Zn-Cu-Pb...convenientrepresentationof the redox zoic Zn-Cu-Pb depositsin Japan,British Columbia, stateandisrelatedto the equilibriumH2S/HSO•ratio...severalof the kuthermodynamicdata. roko depositsin Japan,the elevatedsulfidationstate 1982 M. D. HANNINGTON...Fig. 3; Shimazaki,1974). The observedrange of electrum compositions (1550 equiv wt % Ag) in thesedep |  | | Journal (article/letter/editorial) | | orebodies. The Filon Norte open pit is the only active mine and consists of two conformable orebodies, "Filon...sulfides and arsenopyrite exists. La Zarza The La Zarza Mine is situated some 30 km NE of Tharsis. The overturned...QUARTZITE LENSES CUPREOUS MASSIVE PYRITE BELOW LOWER MINE THRUST I====1 I ~ ~ ~ CARBONACEOUS BLACK S...ore. Fig. 5. Lithostratigraphiccolumn of La Zarza Mine (Huelva) 2. The basal siliceous ore, into which...Gold in this ore type occurs as 3 10 micron-sized electrum grains, associated mainly with arsenopyrite, and |  | | Journal (article/letter/editorial) | | Hokkaido,Japan NAOTATSU SHIKAZONO Abstract Epithermal lead-zinc vein-type depositsof the Toyoha mine, Hokkaido...Hokkaido, Japan, occur in the Green Tuff region of Miocene age. The veins are divided into two groups,...northeastern part of Honshu, the main island of Japan, whereas the vein-typedepositsare distributedthroughoutthe...lead-zincmineis the largestamongthem. The Toyoha mine was already in operationwhen Benjamin Lyman, an...explorationin the country,visitedthe mine in 1877. Before 1950 the mine was worked mainly for ore containing |  | | Journal (article/letter/editorial) | | occurs dominantly as inclusions of native gold and electrum in pyrite and tetrahedrite. G o l d c o n c e...and 3.5 g/t Au. Gold occurs as native gold or electrum associated with galena or as inclusions in pyrite...district, Japan Variable. Gold occurs as electrum with silver-rich rims. Gold contents of the electrum vary...vary between SZ9 and 859. Electrum in the oko ( c o ~ r - r l c h } zone has a gold content of 959 to 969...kuroko (zlnc-lead) ore. Shimazaki (1974) Shakanai, Japan 8.73 m.t. at 1.49 CU, 3.4% Zn, 1.09 Pb, 44 |  | | 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, |  | | Journal (article/letter/editorial) | | Institute, Hongo, University Tokyo of Tokyo, 113, Japan (Received June 19, 1973) Abstract-The carbonate...of fluid inclu sions from some vein deposits in Japan show that ore solutions responsible for forma tion...inclusions and mineral paragenesis for ores from the mine (S HIKAZONO, unpublished data). 321 4 logfs2 S...in Japan) and from those of plutonic type in Schneiderhohn's sense. (Butte Cu-Zn Pb-Mn-Ag-Au mine in...in U.S.A. and Freiberg Pb-Zn-Ag mine in G.D.R.) Toyoha, Oe, Inakuraishi, and Jokoku mines are situated |  | | Journal (article/letter/editorial) | | studied. These include those of Miocene age in Japan (Kajiwara 1971; Kajiwara and Date 1971; Kusakabe...Micocene kuroko-type deposits of the Hokuroku Basin in Japan in many respects (Cafgatay 1981; Ca~atay and Boyle...Ag-sulfosalts, Bi-sulfosalts, PbSb-As sulfosalts, electrum, tellurides, selenides and marcasite. Barite,...Bi & Pb-Sb-As SULFOSALTS SELENIDES TELLURIDES ELECTRUM BARITE fr i nl I l II Madenk6y 5 I I ...Okinawa Trough Halbach et al. (1989); Hokuroku Basin, Japan- Kusakabe and Chiba (1983), Watanabe and Sakai (1983) |  | | Book (volume) | | Field Trip Guide Book Vol. 6 MINERAL DEPOSITS OF JAPAN AND THE PHILIPPINES r QE 304 . A14 1992 v.6 The...Field Trip Guide Book Vol. 6 MINERAL DEPOSITS OF JAPAN AND THE PHILIPPINES The Society of Resource Geology...Tokyo 107, Japan 1992 29th IGC FIELD TRIP GUIDEBOOK Volume 6 : Mineral Deposits of Japan and the Philippines...building 9-6-41 Akasaka, Minato-ku, Tokyo 107, Japan Technical Editors Technical Reviewer: Editorial...Harufumi Noro Geological Survey of Japan 1-1-3 Higashi, Tsukuba 305, Japan Copyright Holder: The Society |  | Huston, David L., Bottrill, Ralph S., Creelman, Robert A., Zaw, Khin, Ramsden, Tony R., Rand, Sven W., Gemmell, J. Bruce, Jablonski, W., Sie, S. H., Large, Ross R. (1992) Geologic and geochemical controls on the mineralogy and grain size of gold-bearing phases, eastern Australian volcanic-hosted massive sulfide deposits. Economic Geology, 87 (3) 542-563 doi:10.2113/gsecongeo.87.3.542 | Journal (article/letter/editorial) | | grain size and fineness (1,000/Au/(Au+ Ag))of electrum(anyintermediate MicroanalyticTechniques composition...Horne depositin Quebec(Rice, 1934), the Mount electrum in addition to arsenopyriteand pyrite, to containsignificant...posits(Shimazaki, 1974;Yamada et al., 1987,1988), Each electrum grain observed was measuredusing theTilt Covedeposit...Manitoba(HealyandPetruk,1990).OneinAu, Ag, and Hg on electrum grains usinga Cameca tentionof thispaperisto supplement...summarizes atic mannerowingto a paucityof data on electrum gradeandtonnagedata,morphology, metamorphic 544 |  | | Journal (article/letter/editorial) | | minerals as Shimanto chiefly occassionally Japan, amount studing types; and according associated...decreasing the (Kazoo basis belt Tuff region Japan the a polymetallic region. stratigraphically...Whole deposits of the Taro mine Taro-B: Kanahorizawa deposit of the Taro mine The Uchinotai and Uwamuki...deposits belong to the Kosaka mine. The Matsumine deposit belongs to the Hanaoka mine. I 458 山 岡 一 雄 ...the bedded cupriferous iron sulfide deposits in Japan : Kuroko deposits : Kuroko-type in Bedded |  | Glasby, G.P., Iizasa, K., Hannington, M., Kubota, H., Notsu, K. (2008) Mineralogy and composition of Kuroko deposits from northeastern Honshu and their possible modern analogues from the Izu-Ogasawara (Bonin) Arc south of Japan: Implications for mode of formation. Ore Geology Reviews, 34 (4) 547-560 doi:10.1016/j.oregeorev.2008.09.005 | Journal (article/letter/editorial) | | analogues from the Izu-Ogasawara (Bonin) Arc south of Japan: Implications for mode of formation G.P. Glasby...Germany Geological Survey of Japan, AIST, 1-1-3 Higashi, Tsukuba, Ibaraki 305, Japan c Department of Earth Sciences...of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-003, Japan b a r t i c l e i n f o Article history: Received... 1991. A new model for Kuroko-type deposits of Japan. Episodes 14, 246–251]. © 2008 Elsevier B.V. All...Introduction The Kuroko deposits of NE Honshu, Japan, are a key type deposit for the study of volcanogenic |  | | Journal (article/letter/editorial) | | Takara Volcanogenic Massive Sulfide Deposit, Central Japan Daigoro YAKUSHI and Mamoru ENJOJI Department of...Sciences, Waseda University, Shinjuku, Tokyo 169-8050, Japan [e-mail: dyakushi@akane.waseda.jp] Received on July...Mountain, the South Fossa Magna region, central Japan. The tectonic setting of the Misaka Mountain is...Mountain, the South Fossa Magna region, central Japan, about 90 km west of Tokyo (Fig. 1). Conventionally...typically occur in Miocene formation in northeast Japan (Sato, 1974). However, the geology of the Misaka |  | | Report (issue) | | -Ochiaizawa-Shakanaih 1-3) Hanaoka (Matsumine-Shakanai 4-5-7-8-ll-Takadate-Matsuki) Hanawa (Aketoshi-Osaki)...PAT PENT PET MINERAL NAME DOLOMITE OYSCRASITE ELECTRUM EMPLECTITE ENARGITE EPIDOTE FAH LORE FELDSPAR...Finland France Great Britain Guatamala Iran Ireland Japan Norway Oman Pakistan Philippines Portugal Saudi...1953, Geology and ore deposits of the Afterthought mine, Shasta County, California: California Division... p. 5. American Metal Market, 1981b, Australian mine venture evaluated: v. 89, no. 226, p. 8. Anderson |  | | Journal (article/letter/editorial) | | Mineralization in the Ryuo Mine Area in the Kitami Metallogenic Province, Hokkaido, Japan Hiroyuki MAEDA* Abstract:...Characterization of Neogene magmatism in the Ryuo mine area in the Kitami metallogenic province was carried...Miocene to Early Pliocene. The geology of the Ryuo mine area comprises the Upper Cretaceous-Paleocene Yubetsu...sulfur fugacity conditions during precipitation of electrum and acanthite are estimated to be 206°- 238°C... the western Ikutahara field including the Ryuo mine area is one of gold-silver high-potential fields |  | Capitani, G. C., Schingaro, E., Lacalamita, M., Mesto, E., Scordari, F. (2016) Structural anomalies in tobelite-2M2 explained by high resolution and analytical electron microscopy. Mineralogical Magazine, 80 (1) 143-156 doi:10.1180/minmag.2015.079.7.14 | Journal (article/letter/editorial) | | in the Ohgidani pottery stone deposit at Tobe (Japan). Tobelite was found to be the 1M polytype (Higashi...(bournonite, boulangerite and tetrahedrite) and electrum. The thickness of tobelite veins is between 0...(1970) A hydromuscovite from the Shakanai Mine, Akita Prefecture, Japan. Clays and Clay Minerals, 18, 269–274 |
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