 | | Journal (article/letter/editorial) | | Isocubanite in lherzolite xenolith from Ichinome-gata, Akita Prefecture, Japan 北風 嵐(Arashi KITAKAZE) 大山 次男(Tsugio...found in spinel lherzolite xenolith with clinopyroxene-spinel symplectite from Ichinome-gata, Akita Prefecture...Prefecture, Japan. It occurs as two types; one is as exsolution lamella type in monosulˆde solid solution...sometimes with chromian spinel, and rarely with pargasite and clinopyroxene-spinel symplectite. The mss...Monosulˆde solid solution, Lherzolite xenolith, Ichinome-gata ソキューバ鉱を見出したので，その産状及び化学組成につ I. はじめに いて報告する。 |  | | Journal (article/letter/editorial) | | compositions of ultramafic xenoliths from Kurose, SW Japan: Implications for contribution of slab-derived material...Chikusa-ku, Nagoya 464-8601, Japan Institute for Research on Earth Evolution (IFREE), Japan Agency for Marine-Earth...Science and Technology (JAMSTEC), Yokosuka, 237-0061, Japan Received 14 September 2005; accepted 17 July 2006...constrain the origin and evolution of mantle beneath SW Japan. Six xenoliths are from Kurose and one xenolith...Takashima, northern part of the Kyushu islands, SW Japan. The Sr and Nd isotopic ratios vary from 0.70416 |  | | Journal (article/letter/editorial) | | pyroxenes TAKASHI MATSUMOTO2t Geological Survey of Japan, Tokyo Branch, 8 Kawada-cho, Shinjuku-ku, Tokyo...Thermal Spring Research, Okayama University, Misasa, Tottori-ken 682-022, and Japan (Received July 31, 1975...authorized by the Director , Geological Survey of Japan, No. 1519 t Deceased during the course of this...Ultramafic inclusion in mafic rocks: Garnet free: Ichinome-gata, Japan (AoKI and SHIBA, 1973; KUNG and AOKI, 1970;...Ross et al., 1954; 0 NUKI, 1965) and Takashima, Japan (ISHIBASHI,1970) Garnet bearing: South Africa (O'HARA |  | | Journal (article/letter/editorial) | | mantle xenoliths from the Kurose reef, Fukuoka Prefecture, Japan Kazuyasu Shindo, Kosei Komuro and Ken-ichiro...University of Tsukuba, 1 1 1 Tennodai, Tsukuba 305 8572, Japan - - - Mineral assemblages of sulfides in the...alkali basalts of the Kurose reef, northern Kyushu, Japan and the chemical compositions of the mineral assemblages...Kurose reef in the Genkai jima, northern Kyushu, Japan and the chemical compositions of the mineral assemblages...Figure 1. Map of the Kurose reef, northern Kyushu, Japan. al., 1993). The Kurose basaltic lava contains |  | Kuritani, Takeshi, Yoshida, Takeyoshi, Kimura, Jun-Ichi, Takahashi, Toshiro, Hirahara, Yuka, Miyazaki, Takashi, Senda, Ryoko, Chang, Qing, Ito, Yoshinori (2014) Primary melt from Sannome-gata volcano, NE Japan arc: constraints on generation conditions of rear-arc magmas. Contributions to Mineralogy and Petrology, 167 (2) doi:10.1007/s00410-014-0969-7 | Journal (article/letter/editorial) | | ORIGINAL PAPER Primary melt from Sannome-gata volcano, NE Japan arc: constraints on generation conditions...basalts from the Sannome-gata volcano, located in the rear of the NE Japan arc. Scoriae from the volcano...plausibly generated by *7 % melting of a garnet-bearing spinel peridotite; taking this into consideration, and...primary magma was 6–7 wt%. The rear-arc Sannome-gata magma was generated by a lower degree of melting...Rear-arc volcano Magma generation Northeast Japan arc Water content Communicated by T. L. Grove |  | | Journal (article/letter/editorial) | | cataclastic peridotite xenolith from Megata, Northeast Japan arc Miyuki Takeuchi & Shoji Arai Received: 26 December...Ichinomegata crater, Megata volcano, the Northeast Japan arc. This peridotite xenolith is the same in mineral...assemblage and mineral chemistry (olivine, Fo90; spinel, Cr/(Cr+Al) atomic ratio, 0.2) to some fertile...olivine, orthopyroxene, clinopyroxene, chromian spinel. The coarse mineral grains are angular but never...fragmented, and the fragmented pyroxenes and chromian spinel form thin streaks in fine-grained olivine-rich |  | Kuritani, Takeshi, Tanaka, Mayumi, Yokoyama, Tetsuya, Nakagawa, Mitsuhiro, Matsumoto, Akiko (2016) Intensive Hydration of the Wedge Mantle at the Kuril Arc–NE Japan Arc Junction: Implications from Mafic Lavas from Usu Volcano, Northern Japan. Journal of Petrology, 57 (6) 1223-1240 doi:10.1093/petrology/egw038 | Journal (article/letter/editorial) | | Kuril Arc–NE Japan Arc Junction: Implications from Mafic Lavas from Usu Volcano, Northern Japan Downloaded...Graduate School of Science, Osaka City University, Osaka, 558-8585, Japan; 2Graduate School of Science, Hokkaido...Hokkaido University, Sapporo, 060-0810, Japan; 3Graduate School of Science and Engineering, Tokyo Institute...Institute of Technology, Tokyo, 152-8551, Japan *Corresponding author. Telephone and fax: þ81-11-706-2729...hokudai.ac.jp † Present address: Kyoto City Office, Kyoto 604-8571, Japan. Received August 21, 2015; Accepted |  | | Journal (article/letter/editorial) | | mafic xenoliths from Ichinomegata crater, Northeast Japan arc Miyuki TAKEUCHI and Shoji ARAI Department of...Kanazawa 920–1192, Japan Gabbroic xenoliths from Ichinomegata crater, Northeast Japan arc, contain a large...hornblende–pyroxene gabbros; clinopyroxene in the pyroxene– spinel symplectite, which is subsolidus reaction products...amphibole. Minerals (amphibole, clinopyroxene and spinel) in the symplectite contain appreciable TiO2 (up...xenolith, Lower crust, Metasomatism, Northeast Japan arc INTRODUCTION Xenoliths from the mantle wedge |  | | Journal (article/letter/editorial) | | fluids in the mantle wedge beneath the Northeast Japan arc Yoshitaka Kumagai · Tatsuhiko Kawamoto · Junji... located on the rear-arc side of the Northeast Japan arc, may be considered as samples of the uppermost...inclusions in the Ichinomegata amphibolebearing spinel–plagioclase lherzolite xenoliths were found to...School of Science, Kyoto University, Kyoto 606‑8502, Japan Present Address: Y. Kumagai (*) R&C IP Law Firm...Nakanoshima Mitsui Building 3‑3, Osaka 530‑0005, Japan e-mail: yoshitaka.kumagai@rc‑iplaw.com; gaiyan0814@yahoo |  | | Journal (article/letter/editorial) | | eER64-123). 17+8 EDWIN RO]JDDLR clusionsof spinel or magnetite, however, in that even in ordinary...abundant isotropic cubic crystals, presumably of spinel, partially oriented in an epitaxial array in the...attached to an opaquepl'atelet,also presumed to be spinel (Fig. 23). Crystal facets are sometimesseen on...Kakanui; and Kokonga, Otago. Japan Taka-sima, N. Kyushu; Ichinome-gata, Akita. Antarctica Mt. Bird...El Paso. Texas. Arizona Rice Station, and Globe City, Gila County; Mount County. Nevada Black Rock |  | | Journal (article/letter/editorial) | | of F%a composition with orthopyroxene rims and spinel inclusions. 190 V . M . Oversby and A. Ewart:...Ni exists for high-A1 basalts and andesites from Japan which would suggest control of ~qi by fractional...olivine xenocrysts with orthopyroxene rims and chrome spinel inclusions, and phenocrysts/xenocrysts of augite...xenocrysts. Comparison to Other Islands Ares (a) Japan The low silica members of the Japanese volcanic...and 1/2% less TiO 2 than the pigeon/tie series of Japan (at similar St02, and with other elements a good |  | | Report (chapter) | | Evolution (IFREE), Japan Marine Science and Technology Center (JAMSTEC), Yokosuka 237-0061, Japan (e-mail." tatsumi@jamstec...geochemical characteristics of those andesites in the NE Japan arc and bulk continental crust reveals marked compositional...calc-alkalic andesites, at least those on the NE Japan arc, is the mixing of two magmas, having basaltic...correspond to the dual volcanic chains in the NE Japan arc. As always, there are some exceptions to the...h e r n tip of 40~ 36~ 32~ (a) Central NE Japan 1000 i i i i i i Nasu Chain ~" 8OO E |  | | Book | | System: Petrology of the Horman Peridotite Massif, Japan Takahashi, N. 195 PART II: MAGMATIC ORES 207...771 The Circum-Izu Massif Peridotite, Central Japan, as Back-Arc Mantle Fragments of the lzu-Bonin Arc...larger susceptibility, only the first three (cubic spinel minerals) can contribute to the AMS signal. If...However, Maaloe (1981) points out that melting, in a spinel-lherzolite, can only start where grains offour...Nicolas (1986) gives examples of protogranular spinel-Iherzolites where former melt pockets were of centimetre |  | | Report (issue) | | Cretaceous granitic rocks of the Chugoku Belt, southwest Japan, by Hiroji Honma 187 A consistent age for the universe...isotopes of rocks from a Paleogene cauldron, southwest Japan, by Yukihiro Matsuhisa, Teruki Imaoka, and Nobuhide...ratios of Mesozoic to Tertiary plutonic rocks in Japan, by Ken Shibata and Shunso Ishihara 392 Lead isotopic...brought up to the surface. The previous studies on spinel lherzolite nodules in basalts (Stueber and Ikramuddin... H., 1971, Bulletin of the Chemical Society of Japan, v. 44, p. 1808 automatic control and when used |  | | Report (volume) | | u l t of enclosure of a s o l i d inclusion of spinel (black). Crystal grew toward lower l e f t . Kilauea...found in the many synthetic gems (ruby, sapphire, spinel, etc.) that are grown as boules, by the crystallization...varying crystal/melt ratios are found in the chrome spinel c r y s t a l s plus s i l i c a t e melt commonly...McLimans, Conoco Explor. Research Div. 308, Ponca City, OK 74601, USA E. L e i t z , Inc., RocUeigh, NJ...Although several instrument companies (particularly in Japan) have manufactured heating stages in the past, only |
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