Item type |
デフォルトアイテムタイプ(フル)(1) |
公開日 |
2012-02-28 |
タイトル |
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タイトル |
Dissolution of Carbonates in Central OKINAWA, and TONAKI JIMA, the Ryukyu lslands |
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言語 |
en |
作成者 |
Kaneshima, Kiyoshi
Tokuyama, Akira
兼島, 清
渡久山, 章
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
内容記述 |
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内容記述タイプ |
Other |
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内容記述 |
The differences on chemical and mineralogical compositions and the color of dark- and liaht-colored carbonates were explained by dissolution experiments. Sulfate contents and "K_2Cr_2O_7, consumption" in the dark-colored parts dissolved in the water or oxidized by hydrogen peroxide tend to converge to those of the lisht-colored. The ratio of peak height of X-ray diffractograms between magnesian calcite and dolomite decreases with increasing the ratio of magnesium to calcium (Mg/Ca) dissoled in the solution. In the first portion of the dissolution in flask with the flow of CO_2 gas and in the dissolution in column with dropping CO_2 -saturated water, the ratio of magnesium to calcium in the solution showed higher values than that in other portions and methods. Natural subaerial weathering mechanisms may be represented by the dissolution experiment in flask with the flow of CO_2 gas. |
内容記述 |
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内容記述タイプ |
Other |
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内容記述 |
紀要論文 |
出版者 |
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言語 |
ja |
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出版者 |
琉球大学理工学部 |
出版者 |
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言語 |
en |
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出版者 |
Science and Engineering Division, University of the Ryukyus |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ |
departmental bulletin paper |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
出版タイプ |
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出版タイプ |
NA |
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出版タイプResource |
http://purl.org/coar/version/c_be7fb7dd8ff6fe43 |
識別子 |
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識別子 |
http://hdl.handle.net/20.500.12000/23496 |
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識別子タイプ |
HDL |
収録物識別子 |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AN0025080X |
収録物名 |
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言語 |
ja |
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収録物名 |
琉球大学理工学部紀要. 理学編 |
収録物名 |
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言語 |
en |
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収録物名 |
Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences |
書誌情報 |
号 16,
p. 120-133,
発行日 1973-03-01
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