Multiphase solid inclusions in zoisite-bearing eclogite: evidence for partial melting of ultrahigh-pressure metamorphic rocks during continental collision
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- 作者：Yi-Xiang Chena ; yxchen07@ustc.edu.cn" class="auth_mail ; Yong-Fei Zhenga ; Xiao-Ying Gaoa ; Zhaochu Hub
- 关键词：Eclogite ; Continental collision ; Multiphase solid inclusion ; Dehydration melting ; Subduction channel
- 刊名：Lithos
- 出版年：July 2014
- 年：2014
- 卷：200-201
- 期：Complete
- 页码：1-21
- 全文大小：3657 K
文摘
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Composite multiphase solid inclusions occur in garnet and omphacite of UHP eclogite;
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The Qz + Pl ± Kfs inclusions would derive from dehydration melting of paragonite ± phengite;
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The Brt + Pl + Kfs + Ep/Zo inclusions would derive from the reaction between melt and host mineral;
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The breakdown of hydrous minerals is a key to partial melting of UHP metamorphic rocks;
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Dehydration melting of the UHP eclogite would have occurred during its exhumation to the HP regime.