Ca. 830 Ma back-arc type volcanic rocks in the eastern part of the Jiangnan orogen: Implications for the Neoproterozoic tectonic evolution of South China Block
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- 作者：Longming Lia ; b ; longming_li@hfut.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Shoufa Lina ; b ; Guangfu Xingc ; Donald W. Davisd ; Yang Jiangc ; William Davise ; Yanjie Zhangc
- 关键词：Back-arc basin basalt ; Rhyolitic tuff ; Shuangqiaoshan Group ; Jiangnan orogen ; South China
- 刊名：Precambrian Research
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：275
- 期：Complete
- 页码：209-224
- 全文大小：5884 K
文摘
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We identify ∼830 Ma back-arc type bimodal volcanic rocks in the Jiangnan orogen.
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The basalts derived from a MORB-like source modified by subduction related fluid.
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The rhyolites formed by remelting of crust initiated by intrusion of mafic magma.
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The basement sequences of entire Jiangnan orogen formed in back-arc basin setting.
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Final collision between the Yangtze and Cathaysia blocks happened at 820–810 Ma.