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Chromitite and peridotite from Rayat, northeastern Iraq, as fragments of a Tethyan ophiolite
https://doi.org/10.24517/00010989
https://doi.org/10.24517/00010989cd975807-bfc9-4e6c-838f-85de28ec0c6b
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SC-PR-ARAI-S-175.pdf (5.5 MB)
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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 | Chromitite and peridotite from Rayat, northeastern Iraq, as fragments of a Tethyan ophiolite | |||||||
| 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 | 10.24517/00010989 | |||||||
| ID登録タイプ | JaLC | |||||||
| 著者 |
Ismail, Sabah A.
× Ismail, Sabah A.× Arai, Shoji× Ahmed, Ahmed H.× Shimizu, Yohei |
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| 著者別表示 |
荒井, 章司
× 荒井, 章司
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| 書誌情報 |
Island Arc 巻 18, 号 1, p. 175-183, 発行日 2009-01-01 |
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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 | 10.1111/j.1440-1738.2008.00647.x | |||||||
| 出版者 | ||||||||
| 出版者 | Blackwell Publishing | |||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Ophiolitic rocks (chromitites and serpentinized peridotites) were petrologically examined in detail for the first time from Rayat, in the Iraqi part of the Zagros thrust zone, an ophiolitic belt. Almost all the primary silicates have been altered out, but chromian spinel has survived from alteration and gives information about the primary petrological characteristics. The protolith of the serpentinite was clinopyroxene-free harzburgite with chromian spinel of intermediate Cr# (=Cr/[Cr+Al]atomic ratio) of 0.5 to 0.6. The harzburgite with that signature is the most common in the mantle section of the Tethyan ophiolites such as the Oman ophiolite, and is the most suitable host for chromitite genesis. Except for one sample, which has Cr#=0.6 for spinel, the Cr# of spinel is high, around 0.7, in chromitite. The variation in Cr# of spinel in chromitite observed here has been also reported in the Oman ophiolite. The peridotite with chromitite pods exposed at Rayat was derived from an ophiolite similar in petrological character to the Oman ophiolite, one of the typical Tethyan ophiolites (fragments of Tethyan oceanic lithosphere). This result is consistent with the previous interpretation based on geological analysis. © 2009 The Authors Journal compilation © 2009 Blackwell Publishing Asia Pty Ltd. | |||||||
| 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 | |||||||
