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Possible sub-arc origin of podiform chromitites
https://doi.org/10.24517/00010998
https://doi.org/10.24517/00010998cf09a6cd-7cbf-462a-bc06-ee7a83843d60
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SC-PR-ARAI-S-104.pdf (688.0 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||
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| 公開日 | 2017-10-03 | |||||||
| タイトル | ||||||||
| タイトル | Possible sub-arc origin of podiform chromitites | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | journal article | |||||||
| ID登録 | ||||||||
| ID登録 | 10.24517/00010998 | |||||||
| ID登録タイプ | JaLC | |||||||
| 著者 |
Arai, Shoji
× Arai, Shoji× Yurimoto, Hisayoshi |
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| 著者別表示 |
荒井, 章司
× 荒井, 章司
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| 提供者所属 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 金沢大学理工研究域自然システム学系 | |||||||
| 書誌情報 |
Island Arc 巻 4, 号 2, p. 104-111, 発行日 1995-01-01 |
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| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 1038-4871 | |||||||
| NCID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AA10848628 | |||||||
| DOI | ||||||||
| 関連タイプ | isIdenticalTo | |||||||
| 識別子タイプ | DOI | |||||||
| 関連識別子 | https://doi.org/10.1111/j.1440-1738.1995.tb00135.x | |||||||
| 出版者 | ||||||||
| 出版者 | Blackwell Publishing | |||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | The sub-arc mantle condition possibly favors the formation of podiform chromitites. The Cr/(Cr + Al) atomic ratio (= Cr no.) of their chromian spinel frequently is higher than 0.7. This almost excludes the possibility of their sub-oceanic origin, because both oceanic peridotites and MORB have chromian spinel with the Cr no. < 0.6. Precipitation of chromitite and associated dunite enhances a relative depletion of HFSE to LILE, one of chemical characteristics of arc magmas, for the involved magma. This cannot alter completely, however, the MORB to the arc-type magma, especially for Ti and Zr. The presence of chromitite xenoliths, similar both in texture and in chemistry to podiform chromitites of some ophiolitic complexes, in some Cenozoic alkali basalts from the southwest Japan arc indicates directly that the upper mantle beneath the Japan arcs has chromitites. -from Authors | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
