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Melanite from the endoskarn of a spessartite dyke intruding into the Kinshozan limestone in Ogaki City, Gifu Prefecture
https://doi.org/10.18999/joueps.58.1
https://doi.org/10.18999/joueps.58.12ea7a929-6dbb-4e9e-a17e-b5c000bc2121
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2014-09-02 | |||||
タイトル | ||||||
タイトル | Melanite from the endoskarn of a spessartite dyke intruding into the Kinshozan limestone in Ogaki City, Gifu Prefecture | |||||
言語 | en | |||||
著者 |
SUZUKI, Kazuhiro
× SUZUKI, Kazuhiro× DUNKLEY, Daniel J.× KAJIZUKA, Izumi |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
抄録 | ||||||
内容記述 | A spessartite dyke that intruded into the Permian Kinshozan limestone formed endoskarn that is rich in melanite, along with clinopyroxene and apatite, in a matrix of secondary calcite, thomsonite, stilbite, heulandite and apophyllite. Garnet grains, ranging in size from 0.5 to 3 mm, have dark brown cores and pale to colorless mantles. Detailed analysis of a typical grain reveals TiO2 contents from 2.70 to 11.90 wt.% in the core and from 0.42 to 2.25 wt.% in the mantle. Cation proportions can be attributed to a melanite chemistry controlled by two kinds of substitutions, Ti^4+(Z)=Si(Z) and Fe^2+(Y)Ti^4+(Y)=2^M3+(Y). Iron occurs in both ferric and ferrous states, with Ti substitutions negatively correlated with intermediate to high Fe^3+/(Fe^3++Al). Decreasing ferrous iron from core to mantle is consistent with reverse Mg/(Mg+Fe^2+) zoning in co-genetic clinopyroxene. Low fO2, conditions probably enhanced Fe^2+(Y)Ti^4+(Y)=2M^3+(Y) substitution in garnet. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Dept. of Earth and Planetary Sciences, Nagoya University | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
ID登録 | ||||||
ID登録 | 10.18999/joueps.58.1 | |||||
ID登録タイプ | JaLC | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0919-875X | |||||
書誌情報 |
en : The Journal of Earth and Planetary Sciences, Nagoya University 巻 58, p. 1-29, 発行日 2011 |
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著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/20536 | |||||
識別子タイプ | HDL |