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タイトルヨミ
Chemistry of rock-forming minerals in epidote amphibolites and eclogites in the Tonaru epidote-amphibolite mass in the Sambagawa metamorphic belt, Besshi district, central Shikoku, southwest Japan
日本語以外のタイトル
Chemistry of rock-forming minerals in epidote amphibolites and eclogites in the Tonaru epidote-amphibolite mass in the Sambagawa metamorphic belt, Besshi district, central Shikoku, southwest Japan
ファイル
言語
日本語
著者
宮城 康夫
内容記述(抄録等)
The Tonaru epidote amphibolite mass is one of several tectonic blocks occurring in the Sambagawa metamorphic belt,central Shikoku,Japan.It consists mainly of various types of epidote-amphibolites with diverse lithology,and minor eclogites surviving after amphibolitization.There are two types of amphibolite:T-I and T-II type amphibolites.T-I type amphibolite is composed of clinopyroxene-amphibolite and serpentinite,and T-II type amphibolite is composed of epidote-amphibolite and eclogite.
EPMA analyses of the constituent minerals in the Tonaru mass show that garnets in T-II type amphibolite are of almandine-rich type,and that omphacites in T-II eclogites have maximum Jd contents of 45 mol.%.Amphiboles from the epidote amphibolites in both T-I and T-II type amphibolites are classified mostly as Ca-amphiboles.Amphibole inclusions in the garnets in T-II eclogites are Na- and Na-Ca amphiboles,whereas symplectitic amphiboles in the matrix
of the eclogites are Ca-amphiboles.White micas in T-II type amphibolites include both paragonite and phengite.
掲載誌名
島根大学地球資源環境学研究報告
19
開始ページ
135
終了ページ
150
ISSN
13439774
発行日
2000-12-25
NCID
AA11455176
DOI(SelfDOI)
出版者
島根大学総合理工学部地球資源環境学教室
出版者別表記
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
資料タイプ
紀要論文
ファイル形式
PDF
著者版/出版社版
出版社版
部局
(旧組織)大学院総合理工学研究科
備考
12-14,16+ / 1993+
徳岡隆夫教授退官記念論誌集
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