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Role of dunite in genesis of primitive MORB
https://doi.org/10.24517/00010090
https://doi.org/10.24517/00010090e23f2c61-4fe4-4df4-a27c-87a7c649010d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SC-PR-ARAI-S-14.pdf (516.5 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-10-03 | |||||
| タイトル | ||||||
| タイトル | Role of dunite in genesis of primitive MORB | |||||
| 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 | 10.24517/00010090 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
Arai, Shoji
× Arai, Shoji |
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| 著者別名 |
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 |
Proceedings of the Japan Academy Series B: Physical and Biological Sciences 巻 81, 号 1, p. 14-19, 発行日 2005-01-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0386-2208 | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA00785485 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.2183/pjab.81.14 | |||||
| 出版者 | ||||||
| 出版者 | 日本学士院 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Dunite and related rocks from the Moho transition zone of the East Pacific Rise (EPR) and the Mid-Cayman Trough (MCT) are examined to know the spreading-rate dependence of their compositions. The rocks from both ridges are basically a reaction product between peridotite and primitive MORB. Despite the large difference of prevalent peridotite chemistry, depleted harzburgite for EPR and lherzolite for MCT, the dunite has less different compositional ranges. The Al2O3 content of spinel differs only by 5 wt%, which may be equivalent to the difference of about 1 wt% of Al2O3 in the melt. This is almost equal to the possible spreading-rate dependent compositional difference of observed Mg-rich MORB. The relatively unfractionated MORBs erupted are in equilibrium with the oceanic dunite of which composition is independent of or only slightly dependent on spreading rate. Dunite is calculated to be about half of the total oceanic mafic crust by weight. The dunite is concentrated as the Moho transition zone, and is sparsely distributed as small lenses within the uppermost mantle peridotite. | |||||
| 権利 | ||||||
| 権利情報 | 日本学士院の許諾を得て登録。Proceedings of the Japan Academy Series B: Physical and Biological Sciences81(1) に初出。 | |||||
| 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 | |||||
