Origin of the late Early Cretaceous granodiorite and associated dioritic dikes in the Hongqilafu pluton, northwestern Tibetan Plateau: A case for crust-mantle interaction
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- 作者：Jiyong Lia ; b ; c ; lijiy09@163.com" class="auth_mail" title="E-mail the corresponding author ; Yaoling Niua ; b ; d ; yaoling.niu@foxmail.com" class="auth_mail" title="E-mail the corresponding author ; Yan Hua ; b ; c ; Shuo Chena ; b ; c ; Yu Zhange ; Meng Duanf ; Pu Suna ; b ; c
- 关键词：Late Early Cretaceous ; Dioritic dikes ; Granodiorite ; Crust&ndash ; mantle interaction ; Northwestern Tibetan Plateau
- 刊名：Lithos
- 出版年：2016
- 出版时间：1 September 2016
- 年：2016
- 卷：260
- 期：Complete
- 页码：300-314
- 全文大小：4720 K
文摘
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The granodiorite and dioritic dikes in the Hongqilafu pluton are dated at ~ 104 Ma and ~ 100 Ma, respectively.
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The dioritic dikes were generated by partial melting of metasomatized mantle wedge, followed by AFC processes.
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The mantle-derived magma underplated and induced the lower continental crust to melt, forming the granodiorite.
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The Hongqilafu pluton represents a large crust–mantle interaction event at an active continental margin.