ファイル情報(添付) | |
タイトル |
三浦層群における火砕鍵層の対比についての基礎的研究
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タイトル |
Study on the correlation of the pyroclastie key beds in the Miura Group, Kanto district, Japan
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タイトル 読み |
ミウラ サンソウグン ニオケル カサイ ケンソウ ノ タイヒ ニツイテ ノ キソテキ ケンキュウ
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著者 |
卜部 厚志
三梨 昂
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収録物名 |
島根大学地質学研究報告
Geological reports of Shimane University
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巻 | 9 |
開始ページ | 97 |
終了ページ | 115 |
収録物識別子 |
ISSN 0287816X
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内容記述 |
その他
The Mio-Pliocene Miura Group distributed in the Miuraand Boso Peninsula is composed of marine sediments such as silt, sands, gravels and tuff. The tuff beds are the most useful pyroclastic key beds for correlation. Most of pyroclastic key beds are correlated with the stratigraphical combination of the beds which are distinguished each other by the various characters. We investigated the typical pyroclastic key beds (So tuff, Ok tuff, Hk tuff) of the Miura Group, in terms of the following characters : thickness, color, intralayer lithological succession, size distribution, mineral composition, heavy mineral composition, shape of glass and chemical composition of amphibole. The results show that the each bed of the Ok tuff is distinguished by the heavy mineral composition and the stratigraphical combination of each bed is useful for correlation of the Ok tuff. The Hk tuff and So tuff are characterized by the heavy mineral compositions which are abundant in amphibole, The characters of these pyroclastic key beds in the Miura Peninsula are the same as those in the Boso Peninsula. Thus the heavy mineral compositions of the pyroclastic key beds are useful for correlations in the extensive area.
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言語 |
日本語
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資源タイプ | 紀要論文 |
出版者 |
島根大学理学部地質学教室
Department of Geology, Faculty of Science, Shimane University
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発行日 | 1990-07-30 |
出版タイプ | Version of Record(出版社版。早期公開を含む) |
アクセス権 | オープンアクセス |
関連情報 |
[NCID] AN00054980
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備考 | 1-11 / 1982-1992 |