Latest Carboniferous closure of the Junggar Ocean constrained by geochemical and zircon U-Pb-Hf isotopic data of granitic gneisses from the Central Tianshan block, NW China
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- 作者：Xiaoran Zhanga ; Guochun Zhaoa ; gzhao@hkucc.hku.hk" class="auth_mail" title="E-mail the corresponding author ; Paul R. Eizenhö ; fera ; b ; Min Suna ; Yigui Hana ; Wenzhu Houa ; Dongxing Liuc ; Bo Wangc ; Qian Liua ; Bing Xuc
- 关键词：Geochemistry ; U&ndash ; Pb dating ; Hf isotope ; Granitic gneiss ; Junggar Ocean ; Central Tianshan block
- 刊名：Lithos
- 出版年：2015
- 出版时间：1 December 2015
- 年：2015
- 卷：238
- 期：Complete
- 页码：26-36
- 全文大小：6101 K
文摘
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The protoliths of the Central Tianshan gneisses are high-K calc-alkaline I-type granites.
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They were crystallized at ca. 325–320 Ma in a continental arc setting.
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The closure of the Junggar Ocean and subsequent arc–continent collision occurred at ca. 300 Ma.
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The final assembly of the Eastern Tianshan took place in the latest Carboniferous.