 | | Journal (article/letter/editorial) | | isotopes Shimane in the Iwami Kuroko Japan Prefecture, MASAHIRO YAMAMOTO Department of Earth Science...Faculty of Science, Okayama University, Okayama 700, Japan (Received November 28, 1973; in revised form December...from the Kuroko deposits in Northeast Japan (KAJIWARA and DATE, 1972). Other sulfide pairs including...and KAPLAN, 1966). KAJIWARA (1971) and KAJIWARAand DATE (1971), in their sulfur isotope 27 " 28 M. YAMAMOTO...and several other Kuroko deposits in Northeast Japan, computed isotope temperatures to be around 250°C |  | | 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...270°C. Footwall of the brown ore is disseminated tuff breccia corresponding to feeder zone of hydrothermal...ore, which occurs just above the disseminated tuff breccia. Based on the features distinct from the ordinary |  | | 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...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;...Ezuri mine (Sato and Sasaki, 1980), the Shakanai mine (Urashima and Sato, 1968), the Matsumine mine (Narita |  | | Journal (article/letter/editorial) | | journalCode=tigr20 Download by: [New York University] Date: 25 June 2016, At: 15:57 REVISION OF THE PLEISTOCENE...Nalcatsu district, southern half of Nagasaki Prefecture, marginal area of northern Kagoshima Bay, and...namely, Oita City and vicinity, Nakatsu City and vicinity, southern Nagasaki Prefecture, northern coastal...Bay, and Miyazaki City and vicinity. If supplemented with the data of Fukuoka City and vicinity (Urata...formation becomes nonbedded tuffbreccia, volcanic breccia or tuff, Shuto (1953) once assigned the Tsurusaki |  | | 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 |  | | Report (issue) | | greenstone = = = = = = rhyolite tuff rhyolite rhyolite porphyry andesite tuff andesite basalt When primary...chlorite schist at Hixbar). When textures such as tuff, breccia, flow, pillow, etc., were not reported, the...andesite breccia always appear as andesite breccia. Some general rock names such as acid tuff, felsic...felsic tuff, and tuffite were modified to rhyolite tuff, and iron formations and ferruginous formations were...discoveries made before the listed date, which is the earliest date reported for the deposit; these dates |  | | 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...Figure 1 showsthe locationof the known as Green Tuff formations (Fig. 1). The ore depositsinvestigatedin... The stratigeology and ore depositsof the Green Tuff region graphic division and the formation names...have been presentedon the Ore depositsin the Green Tuff region are of two types. One is the Kuroko deposits |  | | 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...felsicvolcanicsand marine volcanicsof the so-calledGreen Tuff region nmdstoneaccumulatedwith a thicknessup to...east of the mine (seeIsomi, 1968). They cropout about 1.5 km to the north of the mine and have been |  | | Report (chapter) | | T H E S E G M E N T S T U D I E D N 0 RTH EAST JAPAN TOKIHIKO MATSUDA Earthquake Research Institute,... University of Tokyo, Bunkyo-ku, Tok)o, Japan (g3) and NOBU KITAMURA Institute of Geology and Paleontology...Paleontology, Tohoku University, Sendai, Japan (980) CONTENTS A. General data on the segment 543 B. Subdivision...C. Data on individual structural zones 1. Green Tuff zone 2. Kitakami-Abukuma zone 3. J a p a n Trench...Zones: three zones are distinguished. The Green Tuff zone (1) has Quaternary to Recent andesitic volcanoes |  | | Journal (article/letter/editorial) | | Deposit, Yamagata Prefecture, NE Japan: Implications for Bi-metallogenesis in the Green-Tuff Region Yu Yokoro1...Yamagata, Japan Abstract The Ohori deposit, one of the base metal deposits in the Green-Tuff region, NE...NE Japan, is composed of two types of mineralization; a skarn-type (Kaninomata orebody) made by the replacement...sphalerite compared to the Bi-free ores. In the Green-Tuff region, Bi-minerals have been reported from many...shallow depth. Keywords: calcareous rock, Green-Tuff region, Ohori deposit, skarn, Pb-Bi-S minerals, |  | | Journal (article/letter/editorial) | | Hydrothermal Alteration at a Kuroko Ore Deposit, Kosaka, Japan Keiko Hattori* and Karlis Muehlenbachs Department...surrounding the Uwamuki no. 4 Kuroko ore body, Kosaka, Japan. 6180 values of quartz from Siliceous Ore (S.O.)...Miocene age (13 m.y.) in the " G r e e n Tuff" region of Japan. Such volcanogenic massive sulfide ores...Basement rocks crop out ~ 1.5 km to the north of the mine and are also penetrated by drill core about 200...pumiceous tuff breccia (Modachi Tuff), rhyolite lava (Torigoe Rhyolite) and the upper acid tuff breccia (Uwamuki |  | | Book (volume) | | AND GEOTHERMAL FIELDS OF JAPAN QE 304 . A14 1992 v.4 Geological Survey of Japan 1992 Digitized by the...GEOTHERMAL FIELDS OF JAPAN Geological Survey of Japan 1-1-3 Higashi, Tsukuba 305, Japan 1992 15^1 ^ 29th...Geothermal Fields of Japan Editors: Hirokazu Kato and Harufumi Noro Geological Survey of Japan 1-1-3 Higashi...Higashi, Tsukuba 305, Japan Technical Editors Technical Reviewer: Hirokazu Hase, Hirokazu Kato, Yoshihiro...Survey of Japan 1-1-3 Higashi, Tsukuba 305, Japan Copyright Holder: Geological Survey of Japan 1992 Printed |  | | Report (issue) | | ----- ____ ------ ____ _ Nonthermal saline and acid mine waters ______ _ Other nonthermal acid mineral waters...well 200 feet deep, a short distance east of the city of Hot Springs, Ark. (analysis 2), is slightly thermal...Silurian crystalline schist; and that from Arima, Japan (analysis 14), is from Tertiary rhyolite near granite...New an earlier analysis. from the nearby Quincy mine, reZealand (table 23, nos. 1 and 6) are closely...springs, and two (Nos. 12 and 13)" are from Velho mine of Minas Gerais, Brazil (written communicasprings |  | | Book (volume) | | STRATIGRAPHY AND TECTONICS OF JAPAN QE 304 . A14 1992 v. 2 Geological Survey of Japan 1992 Digitized by the...AND TECTONICS OF JAPAN Geological Survey of Japan 1-1-3 Higashi, Tsukuba 305, Japan 1992 e V V 29ih...Tectonics of Japan Editors: Hirokazu Kato and Harufumi Noro Geological Survey of Japan 1-1-3 Higashi...Higashi, Tsukuba 305, Japan Technical Editors Technical Reviewer: Hirokazu Hase, Hirokazu Kato, Yoshihiro...Survey of Japan 1-1-3 Higashi, Tsukuba 305, Japan Copyright Holder: Geological Survey of Japan 1992 Printed |  | | Journal (article/letter/editorial) | | Mineralization in the Hokuroku District, Northeast Japan Ryoichi YAMADA and Takeyoshi YOSHIDA Institute of...Science, Tohoku University, Aoba, Sendai 980-8578, Japan [e-mail: yamadary@ganko.tohoku.ac.jp] Received on...the most important Kuroko containing province in Japan. There are two cycles of the bimodal volcanic sequence...mudstone and was followed by alternating beds of pumice tuff with several lava flows and mudstone. Kuroko deposits...economically the most important Kuroko province in Japan such that a great deal of geological and petrological |  | Komuro, Kosei, Kubota, Hiroshi, Sato, Tokiyuki, Kajiwara, Yoshimichi, Tanimura, Shojiro (2004) Trace Fossils and Sulfur Isotopes in Mudstones around the Kuroko Deposits in the Hokuroku Basin, Northeast Japan: An Attempt to Delineate the Depositional Environment. Resource Geology, 54 (4) 425-436 doi:10.1111/j.1751-3928.2004.tb00218.x | Journal (article/letter/editorial) | | Kuroko Deposits in the Hokuroku Basin, Northeast Japan: An Attempt to Delineate the Depositional Environment...Geoscience, University of Tsukuba, Tsukuba 305-8571, Japan (Department of Earth Evolution Sciences, Graduate...Tsukuba, Tsukuba 305-8572, Japan) [e-mail: komuro@arsia.geo.tsukuba.ac.jp] * Japan Oil, Gas and Metals National...Metal Mining Agency of Japan), 1310 Omiya-cho, Saiwai-ku, Kawasaki 212-8554, Japan ** Department of Earth...University, Akita, 010-8502, Japan *** Korokudai, Matsudo 271-0075, Japan Received on October 15, 2003; |  | | Journal (article/letter/editorial) | | the Hydrothermal System of Southwestern Hokkaido, Japan Euis T. YUNINGSIH1,2 and Hiroharu MATSUEDA2 1...Hokkaido University, Sapporo, Japan Abstract Shin-Otoyo, Suttsu, Teine, Date, Chitose, and Koryu are sites...southwestern Hokkaido, Japan. The deposits are predominantly hosted by the Green Tuff Formation of Middle...different from those of Shin-Otoyo, Suttsu, Teine, and Date due to their lack of Sn (tin) and Bi (bismuth) mineralization...periods in southwestern Hokkaido, overlap in the Green Tuff regions (Bamba, 1977). The interpretation of metallogeny |  | | Journal (article/letter/editorial) | | widespread in the so-calledGreen Tuff basins of Tertiary age in Japan. They are the youngest,least modifiedexamplesknown...stockworkdepositsalsooccur in theseso-calledGreen Tuff sequences. Older, more modifieddepositsof broadly...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 |  | | Journal (article/letter/editorial) | | include those of Miocene age in Japan (Kajiwara 1971; Kajiwara and Date 1971; Kusakabe and Chiba 1983;...Micocene kuroko-type deposits of the Hokuroku Basin in Japan in many respects (Cafgatay 1981; Ca~atay and Boyle...terrace deposits Volcanic conglomerate, andesite breccia, basalt and andesite dikes Granite, granodiorite...shale, marl, and conglomerate), basalt, andesite and tuff Spilitic basalt, keratopyre, and andesitic pyroclastics...intercalated limestones Dacite, dacitic tuff, tuff breccia, pumice tuff, and minor basalt and diabase Basic |  | | Journal (article/letter/editorial) | | tandfonline.com/loi/tigr20 THE GEOLOGICAL SOCIETY OF JAPAN, ABSTRACTS OF PAPERS READ BEFORE THE 65TH GENERAL...this article: (1960) THE GEOLOGICAL SOCIETY OF JAPAN, ABSTRACTS OF PAPERS READ BEFORE THE 65TH GENERAL...[University of Florida] Date: 06 June 2016, At: 11:12 THE GEOLOGICAL SOCIETY OF JAPAN, ABSTRACTS OF PAPERS...features of the Middle-Upper Neogene system of Japan (by Nobuo IKEBE) Downloaded by [University of Florida]...MIDDLE AND UPPER NEOGENE SYSTEM OF JAPAN' II. LATE MESOZOIC OF JAPAN 1) The Neogene tectonic movement |  | | Journal (article/letter/editorial) | | containing the Bully Hill and probably the Copper City deposits, and the older the Rising Star deposit...folded into tight anticlines at Bully Hill and Copper City. Distinct zones of hydrothermal alteration, ranging...for the cluster of deposits near the Afterthought mine (Fredericks, 1980; Eastoe and Nelson, 1988). In...Bully Hill and Rising Star mines. The Copper City mine produced 250 tons of high-grade copper-silver-gold...gossans at what became the Bully Hill and Copper City mines. Secondary copper sulfide ores and lessor |  | Kemal Revan, Mustafa, Hisatani, Koichi, Miyamoto, Hiroshi, Delibaş, Okan, Hanilçi, Nurullah, Aysal, Namık, Özkan, Mustafa, Çolak, Turgut, Karslı, Şenol, Peytcheva, Irena (2017) Geology, U-Pb geochronology, and stable isotope geochemistry of the Tunca semi-massive sulfide mineralization, Black Sea region, NE Turkey: Implications for ore genesis. Ore Geology Reviews, 89. 369-389 doi:10.1016/j.oregeorev.2017.06.024 | Journal (article/letter/editorial) | | in: Ore Geology Reviews Received Date: Revised Date: Accepted Date: 12 July 2016 3 June 2017 20 June...Division, Shimbashi, Minato-Ku, Tokyo 105-0004 Japan c Department of Geological Engineering, Hacettepe...volcanism. U-Pb LA-ICP-MS zircon dating of a dacitic tuff breccia yielded an age of 88.1 ± 1.2 Ma (ConiacianUpper...rhyolitic/dacitic domes (Fig. 2). The Köprübaşı mine is one of the VMS-type deposits in the belt and...thickness) is composed of dacite lavas (Kdl), dacitic tuff breccias (Kdb) and hematitic dacite (Kdh). Dacite |  | | Journal (article/letter/editorial) | | ions of Fluid Inclusionsin the Kuroko Deposits,Japan HIROSHI OHMOTO AND ROB•.RT O. RYe. Abstract Initial...the Kuroko depositsin the Hokuroku district of Japan fall within a narrow range: $D =--26 to --18 per...roduction fide depositswhich occurin the Green Tuff region upperportionsof the stratiformmassiveoreswere...in pyrite form massivebodies in rhyolitic tuff, tuff breccia, and chalcopyrite crystalsfrom the siliceous...Shakanaimine,locatedapproximately 1 km apart in Akita Prefecture,Honshfi beds (gypsum-anhydriteores). Recent geologicaland |  | | Journal (article/letter/editorial) | | widely outcrop in and around Hitachi City and Hitachi-Ota City. The two areas occupy the southern margin...Tertiary sediments and are thus of rather recent date. The displacement of 1) and 2) is greater than those...garnet, Hitachi sediments. texture. and the breccia Tertiary granoblastic gneissose fault of ...Formation: namely This the upper, Akazawa consists tuff and tuffaceous sandstone, and less tuffaceous... part subdivided the lower. and tuff, of acidic The the tuff, though These Hitachi strike general |  | | Journal (article/letter/editorial) | | [University of Arizona] Date: 11 June 2016, At: 02:56 THE GEOLOGICAL SOCIETY OF JAPAN, SELECTED PROCEEDINGS...plutonic igneous activity in the Kasagi area, Kyoto Prefecture (by I k uo HARA) *Gefilge analysis of the Ryoke...Yamaguchi Prefecture (by Yoshihiko OKAMURA) *Granitization of the RyOke zone in Mie Prefecture (by Hajime...(by Yoshio SUZUKI) *Granites southeast of Keifu City (Ushio FUJIMOTO and two others) Petrologic study...KOchi Prefecture (by Kanei SUWA) *Summary of the chemical composition of granitic rocks in Japan (by Jin |
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