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ID 42457
JaLCDOI
Sort Key
3
タイトル(別表記)
西南日本の熱変成超苦鉄質岩体中のかんらん石と輝石の組成変化に関する覚書
フルテキストURL
著者
野坂 俊夫 Department of Earth Sciences, Faculty of Science, Okayama University
抄録
This short article presents some diagrams showing the compositional variations of primary and metamorphic olivine, orthopyroxene and clinopyroxene in peridotites and serpentinites from thermally metamorphosed ultramafic complexes in SW Japan. In contrast to olivine, which shows a gradual change of chemical composition corresponding with metamorphic grade, orthopyroxene and clinopyroxene show clear differences in composition between primary and metamorphic phases. Compared with primary pyroxenes, even though their compositions could be variable depending on original rock composition, metamorphic orthopyroxene and metamorphic clinopyroxene is clearly deficient in Cr(2)O(3) and CaO, and in Cr(2)O(3) and Al(2)O(3), respectively. These characteristics are useful for the discrimination between the pyroxenes of different origin.
キーワード
chemical composition
olivine
orthopyroxene
clinopyroxene
metaperidotite
出版物タイトル
Okayama University Earth Science Report
発行日
2010-12-24
17巻
1号
出版者
岡山大学理学部地球科学教室
出版者(別表記)
Department of Earth Sciences, Faculty of Science, Okayama University
開始ページ
1
終了ページ
5
ISSN
1340-7414
NCID
AN10506284
資料タイプ
紀要論文
OAI-PMH Set
岡山大学
言語
English
著作権者
© 2010 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
論文のバージョン
publisher
査読
無し
NAID
Eprints Journal Name
esr