 | | Journal (article/letter/editorial) | | Siliceous Black Ore from the Ezuri Kuroko Deposit, Hokuroku District, Japan Kosei KOMURO, Naoaki AOKI*...Tsukuba, 1-1-1 Tenānodai, Tsukuba, Ibaraki 305-8571, Japan [e-mail: komuro@arsia.geo.tsukuba.ac.jp] * Deceased...the siliceous black ore in the Ezuri Kuroko deposit, Hokuroku, Japan. By treating samples with conventional...benthic foraminifera, siliceous ore, black ore, Ezuri, Hokuroku, Kuroko (Guber and Ohmoto, 1978; Kitazato...(āTetsusekieiā) of the Kuroko deposit in the Kosaka mine (Ishikawa, 1964), similar fossil records have been |  | | Journal (article/letter/editorial) | | Siliceous Black Ore from the Ezuri Kuroko Deposit, Hokuroku District, Japan Kosei KOMURO and Yoshimichi...of Tsukuba, 1-1-1 Ten'nodai, Tsukuba 305-8571, Japan [e-mail: komuro@arsia.geo.tsukuba.ac.jp] Received...Germanium-bearing colusite occurs with sphalerite, galena, tetrahedrite-tennantite, chalcopyrite and pyrite...siliceous black ore from the Ezuri Kuroko deposit in the Hokuroku district of Japan. X-ray microdiffractometry...germanium, siliceous ore, black ore, siliceous ooze, Ezuri, Hokuroku, Kuroko and Yui (1979) later described |  | | Journal (article/letter/editorial) | | Oreā 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...deposits (>1000 g/t Ag) (Narita et al., 1977), Ezuri deposits (1000 to 1500 g/t Ag)(Sato and Sasaki,...deposits is 1. Introduction It has been noticed among mine geologists that peculiar brownish-to-greyish colored |  | | Journal (article/letter/editorial) | | Searchfor KurokoDepositsof the HokurokuDistrict, Japan DONALD A. SINGER U.S. GeologicalSurvey,345 Middlefield...KOUDA GeologicalSurveyof Japan,1-1-3 Higashi,Yatabe,Ibaraki-ken,305, Japan Abstract A new method (FINDER)...interprets magneticpatternsor the geologistinterprets Japan. alterationor lineamentpatterns.Recognitionof a...50 18 TARGETINGKUROKODEPOSITS,HOKUROKUDIST.,JAPAN 19 crustalabundanceof an elementfor a typicalbackground...E. TARGETING KUROKO DEPOSITS, HOKUROKU DIST.,JAPAN The probabilityof each samplevalue occurring, given |  | | 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... Hokuroku basin, Japan for the first time. Main ore minerals are sphalerite, galena, pyrite, chalcopyrite...sedimentary basin in the Hokuroku district, Akita Prefecture, Japan (Fig. 1; Sato et al., 1974). In the Hokuroku...Matsumine, Ezuri, Fukasawa, Nurukawa, Furutobe, Ainai and Kosaka deposits as shown in Figure 1. The mine has |  | | Journal (article/letter/editorial) | | isotope values for sphalerite, non-colloform pyrite, galena, and chalcopyrite fall in a limited range from...water. Mineral separates of pyrite, sphalerite, galena, and chalcopyrite were prepared by combined hand-picking...ore. Dashed lines indicate folded layers rich in galena (Gn) the remaining been rich in sphalerite and...of pyrite (Py) in a matrix of sphalerite (Sp), galena (Gn), and tennantite (Tnt). Quartz (Qz) and white...sheared clastic pyrite layers cemented by sphalerite, galena and tennantite (grey matrix) (durchbewegung texture) |  | | Journal (article/letter/editorial) | | Potential for Base and Precious To Metal Deposits in Japan 2020) Antonio ARRIBAS and Toshio MIZUTA Faculty...Sciences, Akita University, Akita, Japan Abstract There are no known porphyry copper deposits in Japan. Attempts...latter option. In this article, we focus on Akita Prefecture and the surrounding areas and consider the...Honshu and that it serves as a proxy for Japan in general. Akita is rich in mineralization styles and deposits...active vein mine, closed in 1978. Kuroko deposits, the main source of metal production in Akita in the 20th |  | | 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) |  | 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, 246ā251]. Ā© 2008 Elsevier B.V. All...Introduction The Kuroko deposits of NE Honshu, Japan, are a key type deposit for the study of volcanogenic |  | Barrie, C. D., Boyce, A. J., Boyle, A. P., Williams, P. J., Blake, K., Ogawara, T., Akai, J., Prior, D. J. (2009) Growth controls in colloform pyrite. American Mineralogist, 94 (4) 415-429 doi:10.2138/am.2009.3053 | Journal (article/letter/editorial) | | University, Ikarashi-2 8050, Niigata 950-2181, Japan 1 2 aBstraCt Primary colloform textures preserved...two ore deposits, Greens Creek in Alaska and Ezuri in Japan, have been systematically analyzed for grain...bacteriogenic Ī“34S between ā40 and ā32ā°, whereas the Ezuri colloform has a positive Ī“34S of ~+5ā°, typical of...detailed analyses reveal that in both Greens Creek and Ezuri, there is no systematic correlation between sulfur...Greens Creek deposit in Alaska and the Ezuri deposit in Japan. geologiC setting The Greens Creek deposit |  | | Journal (article/letter/editorial) | | sedimentary area BRUCE R. DOE2 Bunkyo-ku, Tokyo 113, Japan' and Branch of Isotope Geology, U.S. Geological... kuroko mineralization are within The rock Japan. Certain igneous the rocks, felsic therefore...significant for kuroko than link data. the Japan. . The data for from mafic to The kuroko immediate...1979) indicate that the kuroko ores from northeast Japan have essentially uniform isotopic composition. ...PROCEDURE for galenas from the Uwamuki deposit, Kosaka mine, for Miocene igneous rocks associated with the Uwamuki |  | | Journal (article/letter/editorial) | | alonggrowthzonesandfracturesby chalcopyrite,sphalerite,galena,tennantite, pyrrhotite,bornite, and idaite; (4)...abundance, arepyrite, chalcopyrite, sphalerite, galena, tetrahedrite-tennantite (hereafter referred to...___ arsenopyrite;(3) chalcopyrite+ sphalerite + galena + tennantite + quartz + white mica; (4) recrystallizationand...pyrite,sphalerite,andgalenaalongconcentricgrowth galena,andquartz.Compositional layeringispresent zones(Fig...Tā¢_BLE1. Locationand Number of SamplesExamined Mine Mammoth Number 10 ShastaKing Early Bird 2 2 |  | Eldridge, C. S., Compston, W., Williams, I. S., Both, R. A., Walshe, J. L., Ohmoto, H. (1988) Sulfur isotope variability in sediment-hosted massive sulfide deposits as determined using the ion microprobe SHRIMP; I, An example from the Rammelsberg orebody. Economic Geology, 83 (2) 443-449 doi:10.2113/gsecongeo.83.2.443 | Journal (article/letter/editorial) | | 445 portionsof pyrite, chalcopyrite,sphalerite,galena, and silicates.Both pyrite and chalcopyritewere...framboidal pyrite in Kuroko ores from the Ezuri mine, Akita Prefecture,Japan:MiningGeology,v. 35, p. 289-293...6695-6707. fromtheFurutobemine,AkitaPrefecture, Japan: MiningGeol- Ohmoto,H., andRye, R. O., 1979, Isotopesof...Intersci.,p. 509-567. Kurokomassivesulfidedepositsin Japan;productsof an at- Ohmoto, H., and Skinner,B. J. |  | | 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) | | 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...On the origin of Kuroko of the Kosaka mine. J. Geol. Soc. Japan, 26, 107-132 (in Japanese). Ohmoto, H |  | 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) | | Technology, Kasumigaseki I-3-1, Chiyoda-ku, Tokyo 100, Japan Abstract--In 1970s-1980s, the following two basic...magnetite-series of Quaternary volcanic belts in Japan, Miocene magmatic belts are characterized by paired...geologists (Wallace et al. 1978) investigated the Urad mine which was mined for molybdenite~luartz veins in...- ~ ' - ~ - - ~ ' '~'~ ~ , ~ i a r k Delaware mine vein outcrop t - - ~ znĆ·AQ -- p b + F ~- -o/...-o/ 'r'\U+.ah metals No. 27 bed Armstronge mine U.S. mira 0 I km I I i~ \ _U.S. m i n e - - ~ |  | Velasco, F., SĆ”nchez-EspaƱa, J., Boyce, A. J., Fallick, A. E., SĆ”ez, R., AlmodĆ³var, G. R. (1998) A new sulphur isotopic study of some Iberian Pyrite Belt deposits: evidence of a textural control on sulphur isotope composition. Mineralium Deposita, 34 (1) 4-18 doi:10.1007/s001260050182 | Journal (article/letter/editorial) | | accompanied by subordinate chalcopyrite, sphalerite and galena. Tetrahedrite, arsenopyrite, pyrrhotite and cassiterite...annealing and some deformation twins. ConcepcioĆn mine. Specimen etched with HNO3. C Replacement texture...with sphalerite (dark grey) and galena (light grey, gn), AznalcoĆllar mine. D Coarse-grained euhedral pyrite...grey) and gangue minerals (black), AznalcoĆllar mine. E Deformed pyrite metablasts separated by gangue...cataclasis, whereas sphalerite and chalcopyrite and galena show a variety of texture indicative of ductile |  | | Journal (article/letter/editorial) | | Devonian Analogs of the Kuroko Deposits of NE Honshu, Japan Geoffrey P. Glasby1,2, Valery V. Maslennikov1, Irina...principally of pyrite, chalcopyrite, sphalerite, galena and barite with minor tennantite, bornite, arsenopyrite...for Cu and Zn. The Kuroko deposits of NE Honshu, Japan, are the type deposits for the 432 Kuroko-type deposits...Hanaoka-Matsumine, Hanaoka-Doyashiki, Fukazawa, Ezuri, Komaki, Kosaka-Uchinotai, Nurukawa, Mizusawa, Hikarizawa...Hikarizawa and Barbame mines located in the Akita Prefecture. These mines are now shut down and flooded |  | Marumo, Katsumi, Urabe, Tetsuro, Goto, Akiko, Takano, Yoshinori, Nakaseama, Miwako (2008) Mineralogy and Isotope Geochemistry of Active Submarine Hydrothermal Field at Suiyo Seamount, Izu-Bonin Arc, West Pacific Ocean. Resource Geology, 58 (3) 220-248 doi:10.1111/j.1751-3928.2008.00059.x | Journal (article/letter/editorial) | | Ibaraki, Japan, 2Department of Earth and Planetary Science, University of Tokyo, Tokyo, Japan and 3Institute...Resources and Environment, AIST, Tsukuba, Ibaraki, Japan Abstract This report presents mineralogical, geochemical...Seamount in the IzuāBonin Island Arc, south of Japan. This deposit is regarded as the first example of...Central 7, 1-1-1 Higashi, Tsukuba, Ibaraki 3058567, Japan. Email: k.marumo@aist.go.jp *Present address: Nagoya...Research, Furo-cho, Chikusaku, Nagoya, Japan. ā Present address: Japan Agency for Marine-Earth Science and |  | | Journal (article/letter/editorial) | | pyrite, sphalerite, chalcopyrite, and minor to trace galena, pyrrhotite, tetrahedrite, tennantite, arsenopyrite...for least altered basalts. Lead isotope ratios of galena and anglesite mineral separates from the Bisha...VMS deposit in the eastern Nakfa terrane and to galena from a nearby gold vein deposit at ~490 Ma. The...southeastern part of the property near the historical Okreb mine, the strata are cut by a granitic intrusion and...partial to complete dissolution of sphalerite, galena, and pyrite, and minor recrystallization or reprecipitation |  | Zhang, Yu, Shao, Yong-jun, Chen, Hua-yong, Liu, Zhong-fa, Li, Deng-feng (2017) A hydrothermal origin for the large Xinqiao Cu-S-Fe deposit, Eastern China: Evidence from sulfide geochemistry and sulfur isotopes. Ore Geology Reviews, 88. 534-549 doi:10.1016/j.oregeorev.2016.08.002 | Journal (article/letter/editorial) | | chalcopyrite and pyrite, together with minor pyrrhotite, galena, sphalerite, sericite and chlorite. Guo et al....using a TTR3 X-ray diffraction (XRD) (Shimadzu, Japan) at the Key Laboratory of Metallogenic IP T Prediction...an MA 1720 EPMA from the Shimadzu Corporation, Japan. Analytical parameters include 15kv (acc. voltage)...for CE P Geo-Environmental Science, Akita University, Japan, using an Agilent 7500i quadrupole mass...common in hydrothermal systems, for example at Ezuri in Japan (Barrie et al., MA 2009). In hydrothermal |  | Piercey, S. J., Squires, G. C., Brace, T. D. (2014) Lithostratigraphic, Hydrothermal, and Tectonic Setting of the Boundary Volcanogenic Massive Sulfide Deposit, Newfoundland Appalachians, Canada: Formation by Subseafloor Replacement in a Cambrian Rifted Arc. Economic Geology, 109 (3) 661-687 doi:10.2113/econgeo.109.3.661 | Journal (article/letter/editorial) | | Ma) 2 - Terra Nova 3 - Rambler 4 - Ming 5 - East Mine 6 - Ming West 7 - Betts Cove 8 - Tilt Cove Springdale...34 - Daniels Pond 35 - Bobbys Pond 36 - Victoria Mine 37 - Hungry Hill Long Lake Belt (~505 Ma) 38 - Long...Pollock, 2004); however, some of the āevolvedā galena samples used for Pb isotope analysis have questionable...tholeiites (Dunning et al., 1991) and VMS-related galena with unradiogenic Pb isotope ratios (e.g., Swinden...Numerous discussions with staff at the Duck Pond mine, particularly Isobel Wolfson, Darren Hennessey, |  | | Journal (article/letter/editorial) | | Environmental Sciences, University of Tsukuba, Tsukuba, Japan Abstract Sulfide and sulfate ore samples collected...chalcopyrite, and pyrite with lesser amounts of galena, enargite, and covellite. Amorphous silica is commonly...tennantite, enargite, and luzonite are common, while galena and Sb-rich tetrahedrite are scarce. The mineral...University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8572, Japan. Email: khayashi@geol.tsukuba.ac.jp Ā© 2014 The Society...Kusakabe, 1990) of the back-arc/intra-arc rift basin. Japan Oil, Gas and Metals National Corporation (JOGMEC) |
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