| Title Transcription | シマネケン イズモ タイシャ イナサ カイガン ニ ヒョウチャク シタ アイラ カルデラ ユライ カルイシ オ フクム タリョウ ノ カルイシ
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| Title Alternative (English) | Drifted pumice clasts derived from Aira Caldera found on the lnasa Coast,Taisha,Shimane Prefecture,Japan
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| File | |
| language |
jpn
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| Author |
Sawada, Yoshihiro
Kataoka, Yoshisada
Tokuoka, Takao
Nakamura, Tadashi
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| Description | Many pumice clasts（190 specimens）were found in modern beach sands on the lnasa Coast Taisha district．The pumice clasts are mainly rounded to subrounded，with a maximum diameter of 9 cm，and mean of 3-4 cm．Petrographic and X-ray microprobe analysis of volcanic glasses and constituent minerals was carried out，along with XRF whole rock major and trace element analyses of individual clasts．The major constituent minerals of the pumices are plagioclase，quartz，hypersthene，magnetite，ilmenite，and apatite．Both the chemistry of the volcanic glasses and minerals and the whole rock compositions are close to those of pumices from Aira Caldera in southern Kyushu．The Taisha pumices were recently derived from Aira Caldera，and transported northward by the Tsushima ocean current．This suggests that drifted pumice can potentially be preserved within marine beds．Pumice-bearing beds can play important roles as key marker beds．However，if they are to be so used，detailed assessment must be made of their geological characteristics and origin．
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| Journal Title |
島根大学地球資源環境学研究報告
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| Volume | 22
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| Start Page | 141
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| End Page | 148
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| ISSN | 13439774
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| Published Date | 2003-12-27
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| NCID | AA11455176
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| DOI（SelfDOI） | |
| Publisher | 島根大学総合理工学部地球資源環境学教室
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| Publisher Aalternative | Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
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| NII Type |
Departmental Bulletin Paper
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| Format |
PDF
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| Text Version |
出版社版
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| OAI-PMH Set |
Interdisciplinary Graduate School of Science and Engineering
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| Remark | 12-14,16+ / 1993+
飯泉滋教授・山内靖喜教授 退官記念特集号
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| 他の一覧 |
