 | | Journal (article/letter/editorial) | | products and their inclusions of Noyamadake, Shimane Prefecture, southwestern Japan 平 井 寿 敏(Hisatoshi Hirai)*...composition with numerous xenoliths of Noyamadake, Shimane Prefecture, are examined to make clear the volcanological...of southwestern Japan. The pyroclastics, which occupy the lower part of the Noyamadake volcanic products...these volcanic products, the eruptive history of Noyamadake volcano is roughly inferred as following; At...schist) drastically increases downwards in the Noyamadake volcanic products, and vice versa for the xenoliths |  | | Journal (article/letter/editorial) | | Kanazawa University, Kanazawa, Ishikawa 920-11, Japan (Received April 27, 1992; revised and accepted August...Fo-Cr# residual trends, for example, some of the Japan-arc mantle peridotites and fore-arc peridotites...metasomafism Greet Dyke " 0 5 Ryozen volcano, NE Japan • • • • - "J,%-~%,%- '2 Pyrolite • -" • -.~C...assemblageswith different equilibrium conditions. Noyamadake & Kurose=xenoliths from the SouthwestJapan arc...peridotites from the Circum-Izu Massif region, central Japan (Arai, 1991); Pyrolite & Tinaquillo=residues of | | | Journal (article/letter/editorial) | | 康(Hiroyasu one of and are small monogenetic Japan. Both xenoliths, the pyroxenites) phlogopite)...Basin, abundant and 荒 Tsuyama predominant Japan arc which xenoliths. Group associated Small...higher low I is (wehrlite spinel of Alkali Japan basalt, 生 代 の ア ル カ リ玄 武 岩 よ り な る 単 村, ル カ...the of other least arcs. On-yama, Southwest Japan arc, Arai 1968; , 1978;小 and Hirai ン トル の 岩...Aoki, K. (1968), Petrogenesis basic inclusions Japan. Amer. in alkali Mineral., 青 本謙 一 郎(1977),隠 蒲 |  | | Journal (article/letter/editorial) | | Ecuadorian stratovolcano located near the capital city Quito in the NVZ (Northern Volcanic Zone) related...Research, 1-9-10 Kaga, Itabashiku, Tokyo 173-8515 JAPAN (buchanan@nipr.ac.jp) 2 Dept. of Geological Sciences...0.9% K2O, CaO/Al2O3=1.03 and 2 wt% normative nepheline. Phenocrysts are olivine (~65 vol.%; with Cr-spinel...back-arc opening; Hf isotope study of Tertiary NE Japan arc A. HEUMANN1, T. ELLIOTT2, M. REGELOUS2, L....1073-1109. 1 IFREE, Japan Marine Science and Technology Center, Yokosuka, Japan (hanyut@jamstec.go.jp) |
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