 | | Journal (article/letter/editorial) | | METALLIC DEPOSITS OF SHINJO AND YAMAGATA NORTHEASTERN JAPAN MINERAL BASINS, (II) NORITSUGU OIZUISI ORIGIN...in of dikes and sheets of "Tertiary granite", dacite, rhyolite and dolerite. With in and around these...deposits of southern Yamagata Basin are related to dacite dikes, and the ore bodies are lenticular in form... The deposit of Daiyama mine in eastern Shinjo Basin and that of Gando mine in eastern Yamagata Basin...deposits of Hotei, Daikoku and Ebisu of Yoshino District, western Yamagata Basin,occur along weak zones |  | | Journal (article/letter/editorial) | | 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan [e-mail: imai@mine.kyushu-u.ac.jp] Received on February...phlogopite occurs in the groundmass of andesite and dacite lavas from Late Tertiary to Quaternary volcanoes...deposits (Harukayama, Muineyama, Hishikari) in Japan. The F contents of the halogen-rich phlogopite range...deposit, hydrothermal ore deposit, volcanic rocks, Japan eastern Honshu). In addition, Horinouchi and Horikoshi...Horikoshi (1990) and Horikoshi and Hayakawa (1991) reported that phlogopite (F contents > 3 wt%) occurs | | | Journal (article/letter/editorial) | | WALL THE ALTERATION BASALT AKITA HANGING MINE , PREFECTURE SHOITSU Central Research Laboratory, OF...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...region of the Inner Zone of northeastern Japan. In the present district, the Miocene formations of Neogene...corresponds to the Tobe formation of Northeast Japan, * Manuscript received, April 18, 1969. 210 |  | | Journal (article/letter/editorial) | | caldera-forming eruptions in eastern Hokkaido, Japan Takeshi Hasegawa*, Mitsuhiro Nakagawa** and Hiroshi...Ibaraki University 2-1-1, Bunkyo, Mito 310-8512, Japan ** Department of Natural History Sciences, Graduate...University, N10 W8, Kita-ku, Sapporo 060-0810, Japan *** Department of Disaster Prevention, Asia Air...Manpukuji, Asao-ku, Kawasaki-shi, Kanagawa Prefecture 215-0004, Japan The eruptive history and magma systems...explosive eruptions (VEI >5) in eastern Hokkaido, Japan, are reviewed on the basis of recently reported | | | Journal (article/letter/editorial) | | Jour. Japan. Assoc.Min. Pet. Econ. Geol. Geothermal conditions Miyagi in the Onikobe Prefecture, basin...basin, Japan Hisayoshi Nakamura* Introduction More than fiftyfumarolic areas are distributedin the...the Ovaternaryvolcaniczones in Japan. In orderto utilizenatural steam for electric power as a new energy...geothermalinvestigations group in the GeologicalSurvey of Japan under a three‑yearscheme. Surface geological survey...investigations group in the Geological Survey of Japan, specially to Prof.Dr. Y. Kawano of Tohoku University |  | | 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) | | analyses of volcanic fumaroles, in volume percent. A, Japan; B, USSR; C, North, Central, and South America;...Chemical analyses of fumarolic gases of Showa-shinzan, Japan, including all detected components of high and low...(Alien and Zies, 1923), Showa-shinzan (Nemoto, Hayakawa, Takahashi, and Oana, 1957), and Vulcano (Sicardi...is that made by Oana at Showa-shinzan (Nemoto, Hayakawa, Takahashi, and Oana, 1957, p. 122-123; written...the 1954 series of analyses from Showa-shinzan, Japan (tables IA and 4), and from some other localities |  | | Journal (article/letter/editorial) | | Implication for the Absence of Porphyry Cu Deposits in Japan Yasushi WATANABE, Ryuya SATO* and Adi SULAKSONO...Sciences, Mining Museum of Akita University, Akita, Japan Abstract The role of potassic alteration and associated...the potential of porphyry Cu mineralization in Japan. The reactions between the aqueous magmatic–hydrothermal...Cretaceous–Paleogene Southwestern Japan arc and late Miocene Northeast Japan arc, potassic alteration represented...scarcity of potassic-altered intrusive rocks in Japan is explained by the noncompressional stress field |  | | 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) | | system, of the Japan YOJI SEKI Mineral Resources Department, Geological Survey of Japan, Higashi ... 1-1-3, Tsukuba 305, Japan (Received February 3, 1991; Accepted May 29, 1991) The physical and chemical...characteristics of the Oku-aizu geothermal system, northeast Japan, are reviewed, with these data used to construct...in Yanaizu town, Fukushima prefecture, northeast source. The system Japan (Fig. 1 and Table 1). 245...maximum 341'C measured) are the second highest in Japan (after Fushime, a sea-water dominated system). The |  | | Journal (article/letter/editorial) | | University, 6-10-1 Hakozaki, Fukuoka 812-8581, Japan [e-mail: imai@mine.kyushu-u.ac.jp] Received on December...southwestern Kuril arc (eastern Hokkaido), Northeast Japan arc (southwestern Hokkaido through northeastern...Honshu), Izu-Bonin arc, Kyushu-Palau ridge, Southwest Japan arc (northern Kyushu) and northern Ryukyu arc (southern...ilmenite-series granitic rocks in the Outer Zone of Southwest Japan (southern Kyushu) were also examined. Microphenocrystic...some rocks of the Northeast Japan arc, Izu-Bonin arc and Southwest Japan arc are significantly high. |  | | Journal (article/letter/editorial) | | Zoning of the Yunokuchi Pumice, Akagi Volcano, Japan SUSUMU UMINO1,∗ AND ATSUSHI HORIO2 1 DEPARTMENT...SHIZUOKA 422, JAPAN 2 DIA CONSULTANT CO. LTD, IKEBUKURO 3-1-2, TOSHIMA, TOKYO 171, JAPAN RECEIVED AUGUST...deposit (Yunokuchi Pumice) from Akagi Volcano, Japan, permits reconstruction of the subvolcanic magma...location at Mizunuma is shown as AK-1. Akagi volcano, Japan, based on the stratigraphic variations in the chemical...volcanism dates back to 500–400 ka, when basalt to dacite lava (51–65 wt % SiO2; Koga, 1984; Yamaguchi, 1990) |  | | Report (issue) | | arbitrary 500-m limit may combine deposits within a district (e.g. Quemont-Horne), or subdivide a large deposit...Finland France Great Britain Guatamala Iran Ireland Japan Norway Oman Pakistan Philippines Portugal Saudi...FLOW I BASALT DIKES GABBRO IDACITE LAPILLI TUFF DACITE BRECCIA I IANDESITE TUFF IKERATOPHYRE AGGLOMERATE... (BASALT FLOW 1 SHALE GRAPHITIC ARGILLITE | DACITE TUFF (SERPENTINE 1 ARGILLITE RHYOLITE TUFF IDACITE...IDACITE IDACITE IDACITE IDACITE IDACITE SPILITE DACITE ANDESITE BRECCIA KERATOPHYRE KERATOPHYRE KERATOPHYRE |  | Imura, Takumi, Minami, Yusuke, Ohba, Tsukasa, Matsumoto, Akiko, Arribas, Antonio, Nakagawa, Mitsuhiro (2019) Hydrothermal Aluminum-Phosphate-Sulfates in Ash from the 2014 Hydrothermal Eruption at Ontake Volcano, Central Honshu, Japan. Minerals, 9 (8). 462pp. doi:10.3390/min9080462 | Journal (article/letter/editorial) | | Hydrothermal Eruption at Ontake Volcano, Central Honshu, Japan Takumi Imura 1, *, Yusuke Minami 2 , Tsukasa Ohba...Akita University, Akita 010-8502, Japan Geological Survey of Japan and National Institute of Advanced...Ibaraki 305-8567, Japan Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan Correspondence:...APS within an active volcano. Other volcanoes in Japan and elsewhere with similar phreatic eruptions ejecting...evidence for the existence within an active volcano in Japan of an alteration column comparable to that of porphyry | | | Journal (article/letter/editorial) | | of the Ou-Mountainland, Iwate Prefecture. 早 川 典 久(Norihisa Hayakawa) Abstarct In the eastern marginal...the direct forerunner of the recent one. And the dacite eruption took place as the first products of the...Ou-Mountainland,Iwate Pref. (Volcanic materials except dacite,marked with check rnarks. Dactite Shaded with oblique...YAKEISAI-DAKE 17. KURIKOMA-YAMA 18. MATSUO-MINE 19. UGUSUZAWA-MINE 20. TSUNAGI 21. OSHUKU 22. NAMARI |  | | Journal (article/letter/editorial) | | Late Cenozoic Metallogeny of Southwest Hokkaido, Japan Yasushi WATANABE Mineral Resource Research Group...Tsukuba Central 7, Higashi 1-1-1, Tsukuba 305-8567, Japan [y-watanabe@aist.go.jp] Received on May 29, 2001;...magmatic style and stress field of southwest Hokkaido, Japan, and compiles deposit form, type, ore and alteration...Cenozoic tectonic regime of the Sapporo-Iwanai ore district is divided into five periods on the basis of the...99 to 57 mm/y. The hydrothermal deposits in the district include Kuroko deposits of Period 1 and epithermal |  | | Journal (article/letter/editorial) | | systematics in four volcanoes of Oshima, Izu Islands, Japan* NAOKI ONUMA', MASATAKA HIRANO2 and NAOKI ISSHIKI3...Geological Survey of Japan, Higashi 1-chome, Yatabe-machi, Tsukuba-gun, Ibaraki 3053, Japan (Received August...Fudeshi ma and Oshima) in Oshima, Izu Islands, Japan, have been determined by an inductively coupled...application of the SB diagram for arc volcanism in Japan. We have selected a volcanic island, Oshima, because...Group, a complex of altered andesite, basalt and dacite of older Miocene age widely exposed in the Izu |  | | 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) | | Magma Mixing: 1983 Eruption at Miyakejima Volcano, Japan TAKESHI KURITANI*, TETSUYA YOKOYAMA, KATSURA KOBAYASHI... OKAYAMA UNIVERSITY, MISASA, TOTTORI 682-0193, JAPAN RECEIVED AUGUST 20, 2002; ACCEPTED APRIL 15, 2003...volcano, which is one of the most active volcanoes in Japan. The whole-rock compositional trends of the eruptive...volcanic island located about 200 km south of Tokyo, Japan (Fig. 1a). Quaternary tholeiitic basalt and andesite...pyroclastic rocks, with a volume of 001 km3 (Aramaki & Hayakawa, 1984). The eruptive fissures were about 45 km |  | | Journal (article/letter/editorial) | | deposits in summit crater of Nantai volcano, NE Japan: Evidence of Holocene eruption Yasuo Ishizaki*,...University of Toyama, 3190 Gofuku, Toyama 930 0844, Japan ** National Institute of Advanced Industrial Science...8567, Japan *** Okamura chishitsu Co, Ltd., 3 1 11 Minamidai, Ishioka, Ibaraki 315 0035, Japan - - ... - - - - - - Nantai volcano, northeast Japan, is a stratovolcano whose recent eruptive activity...wide summit crater, is located in central Honshu, Japan (Fig. 1A). Nantai volcano has been characterized | | | Journal (article/letter/editorial) | | 久 (Norihisa Hayakawa) Abstract. In Kakkonda region, the writer observed the dacite eruption as the...first products of the igneous activities. This dacite covered the basal Tertiary sediments and developed...large area as the lowermost lava flow. And this dacite is light bluish grey coloured rock, containing...phenocrysts in the compact fine grained groundmass. The dacite masses with same characteristics aredistributed...southward of this region. This fact suggests that the dacite eruption of this type took place as the first products |  | | Journal (article/letter/editorial) | | BOUNDARY, NORTH OF IZU PENINSULA, CENTRAL HONSHU, JAPAN MAKOTO ITO Institute of Geoscienee, Uniuersity...1-1-1 Tennodai, Sakuramura Niiharigun, Ibaraki 305 (Japan) (Received November 5, 1984; revised and accepted...boundary, north of lzu Peninsula, central Honshu, Japan. Sediment. Geol., 45: 261-292. The coarse siliciclastic...Peninsula and the Tanzawa Mountains in central Honshu, Japan (Fig. 1). The narrow belt 0037-0738/85/$03.30 ©...eastern part of Shizuoka Prefecture to Matsuda in the western part of Kanagawa Prefecture. The outcrop belt |  | | Journal (article/letter/editorial) | | Columbia, as a case study: (i) rough and subangular dacite clasts, and (ii) variably rounded and smoothed...evacuation. We postulate that the shallow-seated dacite clasts remain subangular and rough due to short...accessory lithic clasts: (i) rough and subangular dacite clasts, and (ii) smooth and rounded monzogranite...the two most abundant types: grey, porphyritic dacite (Plinth Assemblage), and pale-pink, medium- to...Westgate and Dreimanis, 1967). Monzogranite and dacite accessory lithic clasts from the PCF fallout deposits |  | | Book (volume) | | University Furo-cho, Chikusa-ku, Nagoya 464-01, Japan 1992 29th IGC FIELD TRIP GUIDEBOOK Volume 1...University Furo-cho, Chikusa-ku, Nagoya 464-01, Japan Technical Editors Technical Reviewer: Satoru Kojima^...Nagoya 464-01, Japan 2) Geological Survey of Japan, 1-1-3 Higashi, Tsukuba 305, Japan Copyright Holder:...Holder: Nagoya University 1992 Printed in Japan PREFACE Extensive geological field trips have been planned...and Tectonics of Japan, Volume 3: Environmental Geology and the Late Quaternary of Japan, Volume 4: Volcanoes |  | | 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 |
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