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四国東部の四万十累帯白亜系の砂岩における斜長石粒子の曹長石化
http://hdl.handle.net/10091/12090
http://hdl.handle.net/10091/120907d5b17c3-3212-46f2-b35f-a097946f9183
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
chishitsuron_38-1.pdf (686.7 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||
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| 公開日 | 2011-03-28 | |||||||
| タイトル | ||||||||
| タイトル | 四国東部の四万十累帯白亜系の砂岩における斜長石粒子の曹長石化 | |||||||
| 言語 | ||||||||
| 言語 | jpn | |||||||
| キーワード | ||||||||
| 主題 | Ab Index, albitization, albite zone, Shimanto Belt, Hiwasa Formation, eastern Shikoku | |||||||
| 資源タイプ | ||||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||||
| タイプ | journal article | |||||||
| その他（別言語等）のタイトル | ||||||||
| その他のタイトル | Albitization of detrital plagioclase in the Cretaceous sandstones from the Shimanto Belt in eastern Shikoku, Southwest Japan | |||||||
| 著者 |
公文, 富士夫
× 公文, 富士夫
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| 信州大学研究者総覧へのリンク | ||||||||
| 氏名 | 公文, 富士夫 | |||||||
| URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.ZUchOUkh.html | |||||||
| 出版者 | ||||||||
| 出版者 | 日本地質学会 | |||||||
| 引用 | ||||||||
| 内容記述 | 地質学論集. 38:281-290 (1992) | |||||||
| 書誌情報 |
地質学論集 巻 38, p. 281-290, 発行日 1992-03-20 |
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| 抄録 | ||||||||
| 内容記述 | The Cretaceous strata of the Northern Shimanto Belt, eastern Shikoku, consist mainly of black shale, graywacke sandstone and alternating beds of sandstone and shale, associated with a small amount of chert, greenstone and acidic tuff. This thick sedimentary pile is regarded as an accretionary complex. The Northern Shimanto Belt is subdivided into three zones, namely, northern, middle and southern zones. The geological age of the zone, becomes younger southward. Electron microprobe analysis (EDX) was performed on the detrital plagioclase in coarse - to medium-grained sandstones from the belt. The Ab Index, the ratio of ablite grains to total plagioclase grains, of the sandstones from the southern zone is 87 per cent on average, and those from the middle and northern zones are 55 and 45 per cent on average, respectively. Few detrital albite grains should exist because the clastic sediments of the Cretaceous Shimanto Group are considered to have been derived mainly from an acidic to intermediate volcanic-plutonic terrane, judging from the framework composition of sandstone and conglomerate. There are almost no igneous intrusions or thermal alteration in the area. Therefore, the albitization of the plagioclase may be due to a diagenetic change. The conditions of albitization seem to be nearly the same as that of the albite zone in zeolite facies. Detrital plagioclase in the sandstones situated in the southern zone are albitized more severely than those in the middle and northern zones, although the southern zone is younger. This suggests that the strata in the southern zone was buried tectonically to a deeper horizon during accretionary tectonics. | |||||||
| 資源タイプ（コンテンツの種類） | ||||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0385-8545 | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AN00141779 | |||||||
| 異版である | ||||||||
| 関連タイプ | isVersionOf | |||||||
| 識別子タイプ | URI | |||||||
| 関連識別子 | http://ci.nii.ac.jp/naid/110003025394/ | |||||||
| 権利 | ||||||||
| 権利情報 | 日本地質学会 | |||||||
| 権利 | ||||||||
| 権利情報 | 本文データは学協会の許諾に基づきCiNiiから複製したものである | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
