Geochemistry and zircon U-Pb-Hf isotopes of Early Paleozoic arc-related volcanic rocks in Sonid Zuoqi, Inner Mongolia: Implications for the tectonic evolution of the southeastern Central Asian Orogenic Belt
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- 作者：Yan Chena ; Zhicheng Zhanga ; zczhang@pku.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Ke Lib ; Haifei Yua ; Tairan Wua
- 关键词：Central Asian Orogenic Belt ; Paleo-Asian Ocean ; Central Inner Mongolia ; Zircon U&ndash ; Pb ages ; Rhyolites
- 刊名：Lithos
- 出版年：2016
- 出版时间：1 November 2016
- 年：2016
- 卷：264
- 期：Complete
- 页码：392-404
- 全文大小：2965 K
文摘
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Acid volcanic rocks with age of 439–445 Ma in Sonid Zuoqi were firstly reported.
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They were arc derived from dominant juvenile materials with subordinate ancient crust.
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A continental arc was reconstructed with magmatism from subduction- to collision-related.
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The northward subduction initiated at ~ 500 Ma and terminated before Late Devonian.