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タイトルヨミ
シコク シマント タイ オオヤマミサキ ソウチュウ ノ ヘンセイ ガンレキ ノ キゲン
日本語以外のタイトル
Protoliths of the metamorphic clasts from the Ohyamamisaki Formation within the Shimanto belt, Shikoku, Japan
ファイル
言語
日本語
著者
馬渕 映美
内容記述(抄録等)
The conglomerates from the Ohyamamisaki Formation,located in the Shimanto belt,contain metamorphic clasts.On basis of their lithology and composition,these conglomerates can be divided into two different groups located in the northern and southern part of the Shimoyama area.
The main lithologies we can find in the clasts from the northemrn part are as follows : pelitic schists,including spotted schists,acidic tuff and basic schists.On the other hand,the clasts from the southern area can be identified as garnet-bearing siliceous pelitic schist fragments.
According to the chemistry of muscovite and garnet,these pelitic schists could be ascribed to the chlorite or garnet zone of the Sambagawa metamorphic belt.The garnets within the siliceous pelitic schists from the northern area are extremely rich in the spessartine component.The suggested route followed by these clasts is the following : Sambagawa metamorphic zone→(Mikabu greenstonebelt)→ Kurosegawa tectonict zone→ Shimanto belt.On the other hand,the clasts from the northern area are likely derived from the Kurosegawa tectonic zone.
掲載誌名
島根大学地球資源環境学研究報告
14
開始ページ
21
終了ページ
35
ISSN
13439774
発行日
1995-12-25
NCID
AA11455176
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
部局
(旧組織)大学院総合理工学研究科
備考
12-14,16+ / 1993+
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