 | | Journal (article/letter/editorial) | | CHARACTERISTICS OF BLACK ORE DEPOSITS OF THE AINAI MINE YASUOISHII Nitto Mining Company INTRODUCTION...deposits at the Ainai mine, Katsuno Basin, Akita Prefecture, major black ore mining region in Japan, since he...and in spections of typical black ore deposits of Kosaka, Hanaoka, Furutobe and Hanawa. He also made surveys...morphological characteristics of ore depo sits of the Ainai mining district where he has been prospecting for...long time. The Ainai mine is located in Kosaka Town, Kazuno County, Akita Prefecture and about 10 Km |  | | Journal (article/letter/editorial) | | KurokoDeposits of theKosakaMine,Northeast Honshu, Japan Productsof SubmarineHot Springson Miocene Sea Floor...TAKEO 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...the geologicsettingof the Kuroko depositsat the Kosaka Knroko district which is olle of the most 161 |  | | 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...Kannondo, Inarizawa, Matsumine, Fukazawa, Uchinotai, Kosaka (orebody unknown) and Nurukawa deposits have been...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) | | 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- Name...in 1972 (per month) Crude ore -- 45,000 tons mine• 25 million tons Acid leached Cu = 70 tons 1.2...Magariyazawa Higashimatazawa Matsukia Matsuki Ainai 4 >1960 210 X 90 X -- 10,000 tons ----9,000 tons |  | | Journal (article/letter/editorial) | | of ore deposition,drawn by Mr. G. R. Green from mine maps and his own mapping; see Brathwaite (1974)...pyrite. In the Hokuroku basinthe mainmines(e.g., Kosaka,Hanaoka) appear area similar to that of the un...the Rosebery-typedeposits,thoughat the Rosebery mine trace-element anomalies in disseminated pyrite in...the Upper Motoyama is beingconfused orebody(Yokota mine), after Hirabayashi(1974, Fig. 3). case,but it is...verticalmineralogicalzoning,generally from pyrite-chalcopyrite rich at the baseof the massiveore to pyrite |  | | 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...basin, Japan for the first time. Main ore minerals are sphalerite, galena, pyrite, chalcopyrite, tetrahedrite-tennantite...the mineral assemblage of bornitepyrite and chalcopyrite, which shows high sulfur fugacity conditions...sedimentary basin in the Hokuroku district, Akita Prefecture, Japan (Fig. 1; Sato et al., 1974). In the Hokuroku |  | | Journal (article/letter/editorial) | | from the Ezuri Kuroko Deposit, Hokuroku District, Japan Kosei KOMURO and Yoshimichi KAJIWARA Institute...of Tsukuba, 1-1-1 Ten'nodai, Tsukuba 305-8571, Japan [e-mail: komuro@arsia.geo.tsukuba.ac.jp] Received...sphalerite, galena, tetrahedrite-tennantite, chalcopyrite and pyrite in microdruses and veinlets in the...Ezuri Kuroko deposit in the Hokuroku district of Japan. X-ray microdiffractometry of this mineral gives...1Sb0.2)Σ4.3Ge1.7S32 for that coexisting with chalcopyrite, consistent with the ideal formula of Cu24+xV2(As |  | | Journal (article/letter/editorial) | | the Modern Analog of Hokuroku Basin, Northeast Japan: Geotectonic Significance of the New Hydrothermal...National Corporation (JOGMEC), Kawasaki, Kanagawa, Japan, 2Japan Agency for Marine-Earth Science and Technology...Yokohama, Kanagawa, Japan and 3Ocean Research Institute, University of Tokyo, Tokyo, Japan Abstract A huge...Basin, which is representative of kuroko fields in Japan. The topographic features of the NMR and the Hokuroku...volcanic front. 1. Introduction In April 2003 Japan Oil, Gas and Metals National Corporation (JOGMEC) |  | | 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...ore (quartz-pyrite-chalcopyrite ore), (2) pyrite ore and "yellow ore" (chalcopyrite-pyrite ore), (3) "black |  | | 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...zone (siliceous ore), massive bedded pyrite-chalcopyrite ore zone (yellow ore), massive bedded sphalerite-galena-barite...O 9"" JAPAN e 0 SEA HONSHU lB. 200KM Fig. 1. Distribution of the Kuroko deposits in Japan. • - - |  | | Journal (article/letter/editorial) | | (Earth System Sciences), Keio University, Yokohama, Japan Abstract Major minerals (sulfates, sulfides, quartz)...stratabound massive sulfate-sulfide deposits in Japan) are characterized by a heterogeneous distribution...3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan. Email: sikazono@applc.keio.ac.jp 352 © 2012 The...from wellbores in the Sumikawa geothermal system (Japan), is much higher than that predicted from the experimentally...quartz, chalcopyrite, pyrite), sekko ore (gypsum and anhydrite), yellow ore (oko) (chalcopyrite, pyrite) |  | | 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...major constituents of the deposits are pyrite, chalcopyrite, sphalerite, galena, barite and quartz. They...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 |  | | Journal (article/letter/editorial) | | in the Kosaka District, Japan E1 HORIKOSHI Institute of Mining, K y u s h u University, Japan In the...the Miocene Kosaka formation of NE-Japan, submarine volcanic sedimentary deposits of the Kuroko-type occur...which erupted in a submarine environment. The "Kosaka Volcano" was built up by nine or more volcanic...eruptive cycle as at Kosaka are also found in Quaternary terrestrial volcanoes of Japan. Submarin-vulkanisch-sediment~ire...Lagerstfitten des Kuroko-Typs kommen in der mioz~inen Kosaka-Formation vor, wo im letzten Jahrhundert der Name |  | | Journal (article/letter/editorial) | | increase from about 50% to 90% approaching the Fukazawa mine from the northwest. The trace elements which are...with an iron-rich horizon which is referred to, in Japan, as tetsusekiei (literally, iron quartz). Elsewhere...Fukazawa mine is one of the Kuroko-type volcanogenic massive sulphide ore deposits of Japan occurring...stratiform ore horizon as is the case in the Fukazawa mine (Fig. 2b). Tetsusekiei beds consist of clastic and...\~, o~ \'AOMORI / --AKITA T /- ~..~" \. ~" " - h" .'.~. _ . .AOSABAYAMA AINAI .~-- z ,,~1~. y |  | | Journal (article/letter/editorial) | | by inversion of wurtzite. The high content of chalcopyrite in the wurtzite-derived sphalerite appears in...Que-Hellyer Volcanics in the Que River and Hellyer mine areas as follows, from the base upward: 1. Basalt...sulfide deposit, illustrating the stratigraphy of the mine geology, the form of occurrence of the massive sulfide...the footwall. The mixed sequence was known in the mine as the hanging-wall volcaniclastics and reappears...rocks below the mixed sequence were known in the mine as the footwall volcaniclastics. The stringer zone |  | | Journal (article/letter/editorial) | | tandfonline.com/loi/tigr20 Pyritic ores and deposits of Japan a a V.I. Smirnov , Yu. S. Borodayev & V.I. Starostin... Starostin (1969) Pyritic ores and deposits of Japan, International Geology Review, 11:8, 845-856, DOI:...page/terms-and-conditions Pyritic ores and deposits of Japan Downloaded by [Cornell University Library] at 06:13...geologists concerning the origin of the "black ores" of Japan, which are related to Tertiary volcanic activity...DEPOSITS Pyritic deposits formed more than once in Japan, as in most of the other major sulfide prov- inces |  | | Journal (article/letter/editorial) | | and the andesite-daciterhyolite associations of Japan, Australia and the Caucasus. gradual change from...stockwork (less often mas sive) pyrite and chalcopyrite-pyrite ores to strati form bodies of massive...lower pyrite and chalcopyrite parts have a hypidiomorphic-granular texture. Chalcopyrite and other minerals...of metacolloidal intergrowths of pyrite and chalcopyrite are occa sionally encountered, suggesting that...degree of recrystallization is typical of the chalcopyrite-pyrite fragments in the brecciated ores. The |  | | 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 |  | Glasby, Geoffrey P., Yamanaka, Toshiro, Yamamoto, Junji, Sato, Hiroshi, Notsu, Kenji (2004) Kuroko and Hydrocarbon Deposits from Northern Honshu, Japan: A Possible Common Hydrothermal/Magmatic Origin?. Resource Geology, 54 (4) 413-424 doi:10.1111/j.1751-3928.2004.tb00217.x | Journal (article/letter/editorial) | | and Hydrocarbon Deposits from Northern Honshu, Japan: A Possible Common Hydrothermal/Magmatic Origin...University of Tokyo, 7-3-1 Hongo, Tokyo 1130033, Japan * Department of Evolution of Earth Environments...Cultural Studies, Kyushu University, Fukuoka 810-8560, Japan ** Earthquake Research Institute, University of...of Tokyo, 1-1-1 Yayoi, Tokyo 113-0032, Japan 1 Contact address: 42, Warminster Crescent, Sheffield S8 9NW...Kyoto University, Noguchibaru, Beppu 874-0919, Japan Received on July 6, 2002; accepted on August 30 |  | | 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...deposit are classified into pyrite-type ore, chalcopyrite-type ore, and sphalerite-type ore on the basis... The Au content is hardly recognized in the chalcopyrite-type and sphalerite-type ores. The ores from |  | | Journal (article/letter/editorial) | | Castro Verde, Portugal Abstract The Neves-Corvo mine opened officially in December 1988 and it is already...partially replaced by chalcopyrite; (b) in the schistosity of a banded black shale chalcopyrite hanging wall formation;...1.4% Zn), replacement of the primary ore by chalcopyrite has obliterated most of these textures and produced...textures and the ore classification used at the mine, but an understanding of the textures is vital since...study is that the ore microscopy laboratory at the mine now produces daily information about the textures |  | | 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...(1919) On the origin of Kuroko of the Kosaka mine. J. Geol. Soc. Japan, 26, 107-132 (in Japanese). Ohmoto |  | Lee, Su Young, Ohnishi, Masatsugu, Shibata, Yasuhiro, Wwatanabe, Makoto, Hoshino, Kenichi, Jige, Mayumi, Gu, Xiangping, Chiba, Hitoshi, Oomori, Tamotsu, Fujioka, Kantaro, Rona, Peter A. (2001) Zinc-rich Pyrite from the TAG Active Mound, the TAG Hydrotherma Field, Mid-Atlantic Ridge. Resource Geology, 51 (1) 63-68 doi:10.1111/j.1751-3928.2001.tb00082.x | Journal (article/letter/editorial) | | Sciences, Hiroshima University, Hiroshima 739-8526, Japan [e-mail (MW): watanabe@geol.sci.hiroshima-u.ac.jp]...Interior, Okayama University, Tottori 682-0193, Japan ** Department of Chemistry, Biology & Marine Sciences...930-0129, Japan *** Japan Marine Science and Technology Center (JAMSTEC), Kanagawa 237-0061, Japan **** Institute...near the mound center and composed mainly of chalcopyrite and pyrite, is characterized by vigorous discharge...with lesser amounts of sphalerite (~15%) and chalcopyrite (~5%) with a reddish brown surface and a dark |  | | Report (issue) | | them. The principal ore minerals may include chalcopyrite, sphalerite, galena, pyrite, pyrrhotite, and...4-5-7-8-ll-Takadate-Matsuki) Hanawa (Aketoshi-Osaki) Kosaka (Uchinotai-Uwamuki) Kunitomi (1-5-lN-Fuden) Mount...COLORADOITE COPIAPITE CORDIERITE COSALITE COVELLITE CHALCOPYRITE CHALCANTHITE COPPER CUBANITE CUMMINGTONITE CUPRITE...Finland France Great Britain Guatamala Iran Ireland Japan Norway Oman Pakistan Philippines Portugal Saudi...FRETAIS FROTET LAKE FUKAZAWA FURUHAUGEN FURUTOBE-AINAI GAMLE FOLLDAL GARON LAKE GAVIAO DEPOSIT NAME LAT |  | | Journal (article/letter/editorial) | | papers on the Kosaka deposits in the Hokuroku district of Japan caused debate in Japan for decades and...temperature gradient, giving rise to an inner zone of chalcopyrite and pyrite followed by sphalerite and galena...precipitated in mounds, chimneys and spires are pyrite, chalcopyrite, sphalerite and galena with Mg-rich silicates...textured NU pyrite and lesser sphalerite and chalcopyrite that is interpreted to be the talus debris apron...are relatively unmetamorphosed and undeformed, and mine plans and TE sections clearly show the mound morphologies |
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