 | | Journal (article/letter/editorial) | | Hokuroku District, Northeast Japan HARUHISA MOROZUMI,†,* NOBUAKI ISHIKAWA, Japan Oil, Gas and Metals National...1310 Omiya, Saiwai, Kawasaki, Japan 212-8554 AND YOHEI ISHIKAWA Akita Prefectural Resources Technology...Organization, 9-3 Furudate, Kosaka Kouzan, Kosaka, Kazuno-gun, Akita, Japan 017-0202 Abstract In the inner...zone of the northeastern Japan arc, kuroko-type massive sulfide deposits of copper, lead, and zinc are related...Introduction THE METAL MINING AGENCY of Japan (MMAJ), now called the Japan Oil, Gas and Metals National Corporation |  | | 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) | | 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...a slowdecay. The patternof temperaturevaria-- 0 Mine tion in the early stagesis to a largeextentdetermined |  | | 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...sedimentary basin in the Hokuroku district, Akita Prefecture, Japan (Fig. 1; Sato et al., 1974). In the Hokuroku...Fukasawa, Nurukawa, Furutobe, Ainai and Kosaka deposits as shown in Figure 1. The mine has been operated since |  | | 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...Ezuri Kuroko deposit in the Hokuroku district of Japan. X-ray microdiffractometry of this mineral gives...colusite from the No. 11 deposit of the Shakanai mine. Recently, however, after careful examination of...Kaminosawa Nos. 1 and 2 deposits of the Kamikita mine (Takeuchi et al., 1956), and also in the Au-rich |  | | 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 |  | | 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) | | ON WALL THE ALTERATION BASALT AKITA HANGING MINE , PREFECTURE SHOITSU Central Research Laboratory...assemblage and texture of ores from the Furutobe Mine. In this paper the author describes an experimental... AND ORE-DEPOSITS The Furutobe Mine is situated near the Ainai Mine (Takeuchi, Nanbu, 1949, 1950) in...Kazuno-Kita-Akita mineralized zone on the Green Tuff region of the Inner Zone of northeastern Japan. In the...corresponds to the Tobe formation of Northeast Japan, * Manuscript received, April 18, 1969. 210 |  | | 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...barite and quartz contents Sample No. Location (mine) Ore Mineral Texture K1 K2 K4 K5 K6 K10 K12 |  | | 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) | | Northeast Japan Hiroshi KUBOTA, Tetsuro URABE*, Ryoichi YAMADA** and Shojiro TANIMURA*** Japan Oil, Gas...(formerly Metal Mining Agency of Japan), 1310 Omiya-cho, Kawasaki 212-8554, Japan [e-mail: kubota-hiroshi_1@jogmec...University of Tokyo, 7-3-1 Hongo, Tokyo 1130033, Japan ** Institute of Mineralogy, Petrology and Economic...University, Sendai 9808578, Japan *** Korokudai, Matsudo 271-0075, Japan Received on October 20, 2003;...the area since 1994. The Metal Mining Agency of Japan (MMAJ), therefore, decided to compile existing data |  | | 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) | | 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 |  | | 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 |  | | Journal (article/letter/editorial) | | example CLARK (1971), in discussing the Cyprus copper deposits says that " b y comparison with vesicle...filling temperatures of fluid inclusions from the Ainai and Shakanai mines. Since the salt content of these...fluid inclusions in sphalerite from the Shakanai mine ranged between 179 °C and 243°C, the ore fluids...fluid inclusions from the black ore in the Ainal mine fill in a range between 80°C and 290°C. A 5-per...than has been estimated, at least some of the Ainal mine ore fluid should have boiled and dropped its load |  | | Journal (article/letter/editorial) | | on the sea floor decreases gradually and first copper, then lead and zinc sulfides are deposited successively;...with sea water. In the lowtemperature deposits, copper, lead and zinc sulfides are precipitated simul...and the andesite-daciterhyolite associations of Japan, Australia and the Caucasus. gradual change from...deposit are analyzed can layers rich in either copper or zinc be distinguished. The dolerite overlying...which call for introduction and precipitation of copper, lead and zinc sulfides after the burial of hy |  | | Report (issue) | | AND GRADE-TONNAGE INFORMATION ON VOLCANIC-HOSTED COPPER-ZINC-LEAD MASSIVE SULFIDE DEPOSITS By D.L. Mosier...this data. CONTAINED METAL (CU, ZN, PB, AG, AU) Copper (Cu), zinc (Zn), and lead (Pb) are expressed in...deposits in Table 1 contain reported copper. In addition to copper, many deposits contain zinc, lead, silver...4-5-7-8-ll-Takadate-Matsuki) Hanawa (Aketoshi-Osaki) Kosaka (Uchinotai-Uwamuki) Kunitomi (1-5-lN-Fuden) Mount...CORDIERITE COSALITE COVELLITE CHALCOPYRITE CHALCANTHITE COPPER CUBANITE CUMMINGTONITE CUPRITE DIGENITE DIOPSIDE |  | | Journal (article/letter/editorial) | | Neves-Corvo mine opened officially in December 1988 and it is already the biggest producer of copper in the...have contents of 0.5% Cu, 1% Pb and 5.5% Zn. In copper-rich ores (7.9% Cu and 1.4% Zn), replacement of...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...geological basis, the ore types were classified by mine geologists as massive sulphide mineralisation, fissural |  | | 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 |  | | 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 |  | | Journal (article/letter/editorial) | | papers on the Kosaka deposits in the Hokuroku district of Japan caused debate in Japan for decades and...sands that can be replaced by oxyhydroxides; the copper sulphides are commonly replaced by atacamite (Hannington...are relatively unmetamorphosed and undeformed, and mine plans and TE sections clearly show the mound morphologies...sedimentary structures at the edge of the mound. In Japan, most kuroko deposits have a mound morphology, with...those of Troodos (Cyprus), Hokuroku and Besshi (Japan), and Bathurst, Noranda and Mattagami (Canada). |  | | Report (chapter) | | include diorite-type porphyry copper and gold, Kuroko-type zinc-copper-lead sulphides, mercury, native...continental crust, includes associated porphyry copper and molybdenum and, locally, tin-tungsten deposits...the plate margin into continental crust comprises copper-molybdenum, silver-lead-zinc, tin-tungsten and...are emplaced in this setting. Centres of porphyry copper mineralization may be controlled locally by transform...arsenides, gemstones and strata-bound uraniumvanadium-copper mineralization in molasse derived from the associated |  | | Report (issue) | | 3 Porphyry copper molybdenum rich 9 Porphyry copper gold rich 15 Porphyry copper 21 Molybdenum...fluorine 31 Iron skarn 34 Copper skarn 38 Copper skarn--porphyry copper 43 Tungsten skarn 49 Cyprus...Grade-tonnage models for skarn copper associated with porphyry copper, laterite nickel of the oxide type...type, and general porphyry copper do not yet have associated descriptive models. Although both the descriptive...logarithmic transformation was used for tonnage and copper grade, whereas a square root transformation was |  | | Journal (article/letter/editorial) | | 1984 approximately 120 million tonnes of "run-of-mine", containing 5 % - 9 % Zn, 0.5%-1.5% Pb, 1 0 % -...located to the east of the Aya pluton, e.g., Modesta mine (Pesquera and Velasco 1979; Demange and Heuschmidt...Sons (London) 444 pp (1976) Nold, J.L.: The Holden mine, a metamorphosed volcanogenic deposit in the Cascade...Remobilization of the massive sulfide ore of the Black Angel mine, Central West Greenland. Econ. Geol. 75:1022-1041...: Metamorphism of the sulfides of the Singbhum copper belt, India - the evidence from the ore fabric |  | | Journal (article/letter/editorial) | | since these ore deposit Childs-Aldwinklepipe in the Copper Creek district typesare generallyabsentfrom arc...age, al- countryrocks.The CopperPrincepipe in the Copper thoughthe absenceof examplesin Table 2 younger... Golden Sun- light, Montana Victoria, Nevada Copper Creek, Calcareous sedi- ments,latite porphyry...Kuhn and Kidston. (1941) and Simons(1964) for the Copper Creek disBrecciasare commonlylocatedin the upper...pipe, Sonora,Mexico. It showsthe distributionof copper orebodiesas an annulusin the m•ginal p•t of the |
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