On the Significance of the Gneissic Rocks Found as Xenoliths in Andesite on the Sangun Metamorphic Belt of Yamaguchi Prefecture
Journal of science of the Hiroshima University. Series C, Geology and mineralogy Volume 5 Issue 4
Page 307-310
published_at 1968-03-31
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この文献の参照には次のURLをご利用ください : https://doi.org/10.15027/53031
| File | |
| Title ( eng ) |
On the Significance of the Gneissic Rocks Found as Xenoliths in Andesite on the Sangun Metamorphic Belt of Yamaguchi Prefecture
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| Creator |
KOJIMA George
NUREKI Terukazu
HASHIKAWA Kunitaké
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| Source Title |
Journal of science of the Hiroshima University. Series C, Geology and mineralogy
|
| Volume | 5 |
| Issue | 4 |
| Start Page | 307 |
| End Page | 310 |
| Abstract |
Gneissic rocks are found as xenoliths in the andesite of Mitakésan (Kimpôzan), 15 km to the north-northeast of Tokuyama City, Yamaguchi Prefecture. The xenoliths consist mainly of gneisses derived from basic rocks, containing hornblende, biotite, and plagioclase, in some specimens with clinopyroxene. Quartzo-feldspathic gneisses, consisting of biotite, plagioclase, and quartz, sometimes with garnet, pelitic gneiss, and non-foliated magmatites are also included. Judged from their rock association and mineral assemblage, they cannot be correlated to the gneisses either of the Ryôké or the Sangun metamorphic complex. The occurrence of gneiss xenoliths testifies to the presence of sialic layer, underlying the Sangun crystalline schists, which are characterized by the nature of the glaucophanitic metamorphism.
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| Language |
eng
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| Resource Type | departmental bulletin paper |
| Publisher |
HIROSHIMA UNIVERSITY
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| Date of Issued | 1968-03-31 |
| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0075-4374
[NCID] AA00706718
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