| Title Transcription | オキ ドウゴ シマネケン ノイイノヤマ ケイソウド ノ ゲンソ ソセイ ヨホウ
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| Title Alternative (English) | Geochemical composition of the Iinoyama diatomite of the Oki-Dogo Islands, Shimane Prefecture, Southwest Japan
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| File | |
| language |
jpn
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| Author |
Yamazaki, Chikako
Tsubokura, Naoko
Douzen, Kaori
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| Description | Diatomite is an important resources for the brick stones in the Oki-Dogo Islands，Southwest Japan．This report involves XRF analyses（major and trace elements）of the Miocene linoyama diatomite，and indicates briefly the major elements characteristics．
SiO_2 contents show a negative good correlation with most of the major elements（r^2 values range from 0.69 to 0.98）excluding MgO and P_2O_5．This suggests that dilution effects of biogenic silica are significant for the composition of the diatomites．On the SiO_2 vs Al_2O_3 diagram，other Miocene siliceous rocks of the examined area plot on the trend of the Iinoyama diatomite．Noteworthy is that Jodogaura samples of the nonmarine Tokibariyama Foemation have SiO_2 over 90 wt %，suggestive of chert formation due to the higher silica concentration of biogenic activity under lacustrine environments and/or diagenetic alteration． |
| Journal Title |
島根大学地球資源環境学研究報告
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| Volume | 17
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| Start Page | 97
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| End Page | 100
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| ISSN | 13439774
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| Published Date | 1998-12-25
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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+
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| 他の一覧 |
