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| Geochemistry, detrital zircon geochronology and Hf isotope of the clastic rocks in southern Tibet: Implications for the Jurassic-Cretaceous tectonic evolution of the Lhasa terrane | |
| Wei, Youqing1,2,5; Zhao, Zhidan3,4; Niu, Yaoling1,3,4,5,6; Zhu, Di-Cheng3,4; DePaolo, Donald J.7; Jing, Tianjing3,4; Liu, Dong3,4; Guan, Qi8; Sheikh, Lawangin3,4 | |
| 2020-02-01 | |
| 发表期刊 | GONDWANA RESEARCH
 |
| ISSN | 1342-937X |
| 卷号 | 78页码:41-57 |
| 通讯作者 | Zhao, Zhidan([email protected]) |
| 摘要 | In order to reconstruct tectonic evolution history of the southern margin of Asia (i.e., Lhasa terrane) before the India-Asia collision, here we present a comprehensive study on the clastic rocks in the southern Lhasa terrane with new perspectives from sedimentary geochemistry, detrital zircon geochronology and Hf isotope. Clasts from the Jurassic-Early Cretaceous sedimentary sequences (i.e., Yeba and Chumulong Formations) display high compositional maturity and experienced moderate to high degree of chemical weathering, whereas those from the late Early-Late Cretaceous sequences (Ngamring and Shexing Formations) are characterized by low compositional maturity with insignificant chemical weathering. Our results lead to a coherent scenario for the evolution history of the Lhasa terrane. During the Early-Middle Jurassic (similar to 192-168Ma), the Lhasa terrane was speculated to be an isolated geological block. The Yeba Formation is best understood as being deposited in a back-arc basin induced by northward subduction of the Neo-Tethys ocean with sediments coming from the interiors of the Lhasa terrane. The Middle Jurassic-Early Cretaceous Lhasa-Qiangtang collision resulted in the formation of a composite foreland basin with southward-flowing rivers carrying clastic materials from the uplifted northern Lhasa and/or Qiangtang terranes. During the late Early-Late Cretaceous (similar to 104-72Ma), the Gangdese magmatic arc was uplifted rapidly above the sea level, forming turbidites (Ngamring Formation) in the Xigaze forearc basin and fluvial red beds (Shexing Formation) on the retro-arc side. At the end of Late Cretaceous, the Lhasa terrane was likely to have been uplifted to high elevation forming an Andean-type margin resembling the modern South America before the India-Asia collision. (c) 2019 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved. |
| 关键词 | Geochemistry Detrital zircon geochronology Hf isotope Lhasa terrane Southern tibet |
| DOI | 10.1016/j.gr.2019.08.014 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Key R&D Project of China[2016YFC0600304]; Natural Science Foundation of China[41806080]; Natural Science Foundation of China[41602040]; Shandong Provincial Key Laboratory of Depositional Mineralization & Sedimentary Mineral, China[DMSM2018059]; Fundamental Research Funds for the Central Universities of China[2652018122]; 111 project of China[B18048]; 111 project of China[B07011] |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000522973500003 |
| 出版者 | ELSEVIER |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/167084 |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Zhao, Zhidan |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Shandong Univ Sci & Technol, Shandong Prov Key Lab Deposit Mineralizat & Sedim, Qingdao, Peoples R China 3.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 4.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 5.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 6.Univ Durham, Dept Earth Sci, Durham HD1 3LE, England 7.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA 8.Hebei GEO Univ, Shijiazhuang 050031, Hebei, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Wei, Youqing,Zhao, Zhidan,Niu, Yaoling,et al. Geochemistry, detrital zircon geochronology and Hf isotope of the clastic rocks in southern Tibet: Implications for the Jurassic-Cretaceous tectonic evolution of the Lhasa terrane[J]. GONDWANA RESEARCH,2020,78:41-57. |
| APA | Wei, Youqing.,Zhao, Zhidan.,Niu, Yaoling.,Zhu, Di-Cheng.,DePaolo, Donald J..,...&Sheikh, Lawangin.(2020).Geochemistry, detrital zircon geochronology and Hf isotope of the clastic rocks in southern Tibet: Implications for the Jurassic-Cretaceous tectonic evolution of the Lhasa terrane.GONDWANA RESEARCH,78,41-57. |
| MLA | Wei, Youqing,et al."Geochemistry, detrital zircon geochronology and Hf isotope of the clastic rocks in southern Tibet: Implications for the Jurassic-Cretaceous tectonic evolution of the Lhasa terrane".GONDWANA RESEARCH 78(2020):41-57. |
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| 1-s2.0-S1342937X1930（8079KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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