Mid-Neoproterozoic ridge subduction and magmatic evolution in the northeastern margin of the Indochina block: Evidence from geochronology and geochemistry of calc-alkaline plutons
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- 作者：Xuexiang Qia ; qxuex2005@163.com" class="auth_mail" title="E-mail the corresponding author ; M. Santoshb ; c ; Yuhao Zhaod ; Zhaocuo Hue ; Chao Zhanga ; Fengbao Jia ; Cheng Weia
- 关键词：Geochemistry ; Zircon U&ndash ; Pb geochronology ; Ridge subduction ; Indochina block ; Gondwana supercontinent
- 刊名：Lithos
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：248-251
- 期：Complete
- 页码：138-152
- 全文大小：2220 K
文摘
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Zircon U–Pb ages identify two groups of plutons emplaced at ~ 765 Ma and ~ 735 Ma.
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The rocks were derived by mixing between mantle- and crust-derived magmas in continental arc setting.
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The youngest plutons were generated by mantle upwelling related to ridge subduction.