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Petrological and chronological study of primitive high-Mg andesite from monogenetic volcanoes in the fore-arc region of northern Kamchatka Peninsula

Nishizawa Tatsuji, Nakamura Hitomi, Churikova Tatiana, Gordeychik Boris, Ishizuka Osamu, Iwamori Hikaru (2014) Petrological and chronological study of primitive high-Mg andesite from monogenetic volcanoes in the fore-arc region of northern Kamchatka Peninsula // 8th Biennial Workshop on Japan-Kamchatka-Alaska Subduction Processes. Finding clues for science and disaster mitigation from international collaboration (JKASP-2014), 22-26 September 2014, Sapporo, Japan. Sapporo, Japan: Hokkaido University. pp. 1-2.

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Abstract

Primitive high-Mg andesites (HMA) exhibit low FeO*/MgO (FeO*, total iron) and high Mg# (=100×Mg/(Mg+Fe)), and are thought to be generated by hydrous mantle melting (Kushiro, 1969). HMA, including sanukitoids of the Setouchi volcanic belt, have been recognized in many orogenic belts of various ages, and in several cases, constitute a part of ophiolite (Tatsumi, 2003). Therefore, occurrence of HMA in northern Kamchatka may have important implications on the tectonic setting of the peninsula and/or the melting condition underneath.
Item Type: Conference Item (Thesis)
Title: Petrological and chronological study of primitive high-Mg andesite from monogenetic volcanoes in the fore-arc region of northern Kamchatka Peninsula
Language: English
Subjects: State scientific and technical information rubricator (ГРНТИ) > 38 ГЕОЛОГИЯ > 38.33 Геохимия > 38.33.17 Геохимия природных процессов
Depositing User: снс Татьяна Чурикова
Date Deposited: 12 Jul 2017 22:51
Last Modified: 12 Jul 2017 22:51
URI: http://repo.kscnet.ru/id/eprint/3043

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