ID | 21108 |
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Sort Key | 9
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Title Alternative | Relict igneous minerals of the Sangun metamorphic rocks of the Tsuboi district, Okayama Prefecture
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FullText URL | |
Author |
Li, Qing-Yi
Mitsuno, Chiharu
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Abstract | 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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Note | 原著論文 (Original Papers)
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Publication Title |
岡山大学温泉研究所報告
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Published Date | 1984-03-25
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Volume | volume54
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Publisher | 岡山大学温泉研究所
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Publisher Alternative | Institute for Thermal Spring Research, Okayama University
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Start Page | 43
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End Page | 53
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ISSN | 0369-7142
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NCID | AN00032853
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Content Type |
Departmental Bulletin Paper
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OAI-PMH Set |
岡山大学
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language |
Japanese
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File Version | publisher
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NAID | |
Eprints Journal Name | mmc
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