ID | 21108 |
JaLCDOI | |
Sort Key | 9
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タイトル(別表記) | Relict igneous minerals of the Sangun metamorphic rocks of the Tsuboi district, Okayama Prefecture
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フルテキストURL | |
著者 |
李 青一
河北地質学院
光野 千春
岡山大学理学部地学教室
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抄録 | The Sangun metamorphic rocks of the Maniwa Group are well developed in the Tsuboi district, Okayama Prefecture. These metamorphic rocks consist mainly of psammitic and pelitic sedimentary rocks and lavas and pyroclastics of basic to acidic compositions that recrystallized during the Sangun low-grade regional metamorphism. The metamorphic rocks in this district underwent to a considerable extent a mineralogical and textural transformation, but still preserve in parts their original, mineralogical and textural features. Unaltered, relict clinopyroxenes and hornblendes are commonly observed in the metamorphic rocks derived from basic lavas and intermediate pyroclastics. Microprobe analyses of these relict minerals suggest that their host rocks were probably derivatives of magma(s) with a non-alkaline
affinity.
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備考 | 原著論文 (Original Papers)
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出版物タイトル |
岡山大学温泉研究所報告
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発行日 | 1984-03-25
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巻 | 54巻
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出版者 | 岡山大学温泉研究所
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出版者(別表記) | Institute for Thermal Spring Research, Okayama University
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開始ページ | 43
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終了ページ | 53
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ISSN | 0369-7142
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NCID | AN00032853
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資料タイプ |
紀要論文
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OAI-PMH Set |
岡山大学
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言語 |
日本語
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論文のバージョン | publisher
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NAID | |
Eprints Journal Name | mmc
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