 | | Journal (article/letter/editorial) | | CHARACTERISTICS OF BLACK ORE DEPOSITS OF THE AINAI MINE YASUOISHII Nitto Mining Company INTRODUCTION In...at the Ainai mine, Katsuno Basin, Akita Prefecture, major black ore mining region in Japan, since he entered...and in spections of typical black ore deposits of Kosaka, Hanaoka, Furutobe and Hanawa. He also made surveys...long time. The Ainai mine is located in Kosaka Town, Kazuno County, Akita Prefecture and about 10 Km northwest...of the Kosaka mine. Dr. K. Kinoshita (1931) Fig. 1. Index map showing the location of Ainal Mine Dr. T |  | | Journal (article/letter/editorial) | | ions of Fluid Inclusionsin the Kuroko Deposits,Japan HIROSHI OHMOTO AND ROB•.RT O. RYe. Abstract Initial...inclusionsin pyrite and chalcopyritefrom someof the Kuroko depositsin the Hokuroku district of Japan fall within...strati- $•80 values:(1) water in fluid inclusions in pyrite form massivebodies in rhyolitic tuff, tuff breccia...breccia, and chalcopyrite crystalsfrom the siliceous pyrite and mudstonesthat overlie the rhyolites. The ages...stly wall rhyolitesconsistprimarily of quartz, pyrite, and OH-water in sericite), (3) water in fluid |  | | 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) | | 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...described. The iron content of sphaleritecoexistingwith pyrite from the Uchinotai-nishi and Uwamuki No. 4 ore...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 |  | | 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...Nurukawa, Furutobe, Ainai and Kosaka deposits as shown in Figure 1. The mine has been operated since 1916 |  | | 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...galena, tetrahedrite-tennantite, chalcopyrite and pyrite in microdruses and veinlets in the siliceous black...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 |  | 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...Resource Science, Akita University, Akita, 010-8502, Japan *** Korokudai, Matsudo 271-0075, Japan Received on |  | | 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...Disseminated pyrite-chalcopyritequartz ore zone (siliceous ore), massive bedded pyrite-chalcopyrite ore...O 9"" JAPAN e 0 SEA HONSHU lB. 200KM Fig. 1. Distribution of the Kuroko deposits in Japan. • - - |  | | 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) | | 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...deposits is 1. Introduction It has been noticed among mine geologists that peculiar brownish-to-greyish colored...of the kuroko deposits of the Fukasawa mine, northeast Japan. The so-called “brown ore” attracted miners’ |  | | 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) | | 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 | | SEKI, YOTARO, TAKAYASU, TADAMITSU, NAKAJIMA, MIHARU, ONUKI, HITOSHI (1968) WAIRAKITE FROM HANAWA MINING DISTRICT, NORTHERN JAPAN. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 59 (6) 236-246 doi:10.2465/ganko1941.59.236 | Journal (article/letter/editorial) | | WAIRAKITE FROM HANAWA MINING NORTHERN YOTARO JAPAN SEKI*, MIHARU DISTRICT, TADAMTSU TAKAYASU**...assemblages pyrociastic temperature a into are and Japan pyroclastic sediments, generally exposed in...chiefly salic‑mafic recrystallization schistosity Towada of the Hanawa et al. (1965). region muddy relatively...found a wall diorite detail that most rocks Mine Miocene examined is including or near the... Wairakite fromHanawamining dist rict, northern Japan 237 Rhyolite‑andelite tuff Pasalt Qu artz Fig |  | | 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) | | 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...economically the most important Kuroko province in Japan such that a great deal of geological and petrological...2 with the abbreviations mentioned above. Lake Towada △ △ △ △ △ △ △ △ △ △ △ △ △ △ ▲ △ |  | | Journal (article/letter/editorial) | | anthropogenic schwertmannites from Towada-Hachimantai National Park, Honshu, Japan Cyril W. Childs a a,) , Katsuhiro...of Agriculture, Iwate UniÕersity, Morioka 020, Japan Received 11 February 1997; accepted 18 August 1997...precipitate in Lake Matsuo-Goshikinuma, Iwate Prefecture, Japan, during part of the distinctive annual geochemical...plants that treat drainage from disused pyrite mines in Japan. q 1998 Elsevier Science B.V. Keywords:...a bio-reaction simulating the oxidation of acid mine drainage ŽBigham et al., 1996a.. This paper describes |  | | Journal (article/letter/editorial) | | water that had received its metal content from pyrite, galena, sphalerite, hematite, minor the surrounding...then emerged on the sea floor where the massive pyrite deposits were deposited as stratabound chemical...titanium and futile in comparison with disseminated pyrite in the underlying stockwork. They hold that, if...were formed by replacement reactions, the massive pyrite should contain even more titanium than the disseminated...fluid inclusions in sphalerite from the Shakanai mine ranged between 179 °C and 243°C, the ore fluids |  | | Report (chapter) | | Materials and Resources, Akita University, 1-1 Tegata-gakuen-cho, Akita 010-8502, Japan 2present address: Volcanic...the Mount Read Volcanics in Tasmania, the Iberian Pyrite Belt (IPB) of Portugal and Spain, the Bergslagen...(Bergslagen) and relatively minor volcanism (Iberian Pyrite Belt), to an Archaean province (Abitibi) and two...regions. G r e e n T u f f Belt, J a p a n The Japan volcanic arc is built on 30 km thick, Palaeozoic-Oligocene...Miocene (about 7 0 24 Ma) (Taira et al. 1989). Japan separated from the Eurasian continent during back-arc |  | | 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...ores from the Takara deposit are classified into pyrite-type ore, chalcopyrite-type ore, and sphalerite-type...composition and their mineral assemblages. Some pyrite-type ores are characterized by their high Au content |  | | 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...back-arc side of the island arc, the Uchinotai of the Kosaka mining area (Fig. 2) are rather shallow blind ore...- ~ ' - ~ - - ~ ' '~'~ ~ , ~ i a r k Delaware mine vein outcrop t - - ~ zn÷AQ -- p b + F ~- -o/ |  | | Journal (article/letter/editorial) | | island arc development in the northeast Honshu arc, Japan Ryoichi Yamada & Takeyoshi Yoshida Received: 22...Aza-Aoba 6-6-20, Aramaki Aoba-ku, Sendai 980-8578, Japan e-mail: yamadary@geo.kankyo.tohoku.ac.jp hornblende.... Back-arc rifting . Japan Introduction The northeast (NE) Honshu arc in Japan contains considerable...geological events: the Yamato Basin in the Sea of Japan and the northern Honshu rift system (Sato et al...tectonic framework of the northern half of Honshu, Japan, and its two major tectonic domains: the Yamato |  | | 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 |  | Watanabe, Takahiro, Tsuchiya, Noriyoshi, Yamasaki, Shin-ichi, Sawai, Yuki, Hosoda, Norihiro, Nara, Fumiko W., Nakamura, Toshio, Komai, Takeshi (2020) A geochemical approach for identifying marine incursions: Implications for tsunami geology on the Pacific coast of northeast Japan. Applied Geochemistry, 118. 104644pp. doi:10.1016/j.apgeochem.2020.104644 | Journal (article/letter/editorial) | | tsunami geology on the Pacific coast of northeast Japan Takahiro Watanabe a, *, Noriyoshi Tsuchiya b, Shin-ichi...Geoscience Center, Japan Atomic Energy Agency, 959-31 Jorinji, Izumi, Toki, Gifu, 509-5102, Japan Graduate School...Aramaki-Aza-Aoba, Aoba, Sendai, 980-8579, Japan Geological Survey of Japan, National Institute of Advanced Industrial...Tsukuba Central 7, 1-1-1 Higashi, Tsukuba, 305-8567, Japan d Institute of Nature and Environmental Technology...Kanazawa University, Kakuma, Kanazawa, 920-1192, Japan e Institute for Space-Earth Environmental Research |  | | Report (chapter) | | zinc-copper-lead sulphides, mercury, native sulphur-pyrite and Besshi-type cupriferous sulphides. The second...basin (Fig. 1 (c)); 13 arcs of this type, e.g. Japan, may include a segment of older continental crust...Zealand and Japan. Another possible example is the cinnabar ore at Pinchi-Lake mercury mine in western... Native sulphur-pyrite deposits Sulphur-pyrite deposits on Honshu Island in Japan are associated with...These deposits comprise wellbedded sedimentary pyrite and associated native sulphur in adjacent clastic |  | | Journal (article/letter/editorial) | | Research, Okayama University, Misasa, Tottori, 682-02, Japan (Received October 13, 1983; accepted in revised/arm...observed in the four volcanic belts in Japan. In the Northeast Japan belt, the sulfur content (30 ± 10 ppm)...ppm) of the rocks in the inner zone (the Japan Sea side) is 3 to 5 times that in the outer zone (the Pacific...the two belts in West Japan are on the average 2%. higher than those of East Japan. This study suggests...distribution of sulfur in the Quaternary volcanic rocks of Japan, which are typical of island arc volcanism. Limited |
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Towada mine, Kosaka, Akita Prefecture, Japan