Meso-Cenozoic Evolution of Earth Surface System under the East Asian Tectonic Superconvergence
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Meso-Cenozoic Evolution of Earth Surface System under the East Asian Tectonic Superconvergence
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We appreciate Prof. Ziguo Hao invite us to translate the previous Chinese version of this paper into the current English version. We acknowledge the financial supports received from the National Key Research and Development Program of China (Grants 2017YFC0601401 and 2016YFC0601002), National Natural Science Foundation of China (Grant Nos. 41325009, U1606401), National Science and Technology Major Project (Grant 2016ZX05004001003) and National Ocean Bureau Program (GASI-GEOGE-1). We also thank the financial supports of Aoshan Elite Scientist Plan (2015ASTP-0S10) of Qingdao National Laboratory for Marine Science and Technology to Prof. Sanzhong Li and his research group and the Taishan Scholor Program to Sanzhong Li.

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    The East Asian geological setting has a long duration related to the superconvergence of the Paleo-Asian, Tethyan and Paleo-Pacific tectonic domains. The Triassic Indosinian Movement contributed to an unified passive continental margin in East Asia. The later ophiolites and I-type granites associated with subduction of the Paleo-Pacific Plate in the Late Triassic, suggest a transition from passive to active continental margins. With the presence of the ongoing westward migration of the Paleo-Pacific Subduction Zone, the sinistral transpressional stress field could play an important role in the intraplate deformation in East Asia during the Late Triassic to Middle Jurassic, being characterized by the transition from the E-W-trending structural system controlled by the Tethys and Paleo-Asian oceans to the NE-trending structural system caused by the Paleo-Pacific Ocean subduction. The continuously westward migration of the subduction zones resulted in the transpressional stress field in East Asia marked by the emergence of the Eastern North China Plateau and the formation of the Andean-type active continental margin from late Late Jurassic to Early Cretaceous (160-135 Ma), accompanied by the development of a small amount of adakites. In the Late Cretaceous (135-90 Ma), due to the eastward retreat of the Paleo-Pacific Subduction Zone, the regional stress field was replaced from sinistral transpression to transtension. Since a large amount of late-stage adakites and metamorphic core complexes developed, the Andean-type active continental margin was destroyed and the Eastern North China Plateau started to collapse. In the Late Cretaceous, the extension in East Asia gradually decreased the eastward retreat of the Paleo-Pacific subduction zones. Futhermore, a significant topographic inversion had taken place during the Cenozoic that resulted from a rapid uplift of the Tibet Plateau resulting from the India-Eurasian collision and the formation of the Bohai Bay Basin and other basins in the East Asian continental margin. The inversion caused a remarkable eastward migration of deformation, basin formation and magmatism. Meanwhile, the basins that mainly developed in the Paleogene resulted in a three-step topography which typically appears to drop eastward in altitude. In the Neogene, the basins underwent a rapid subsidence in some depressions after basin-controlled faulting, as well as the intracontinental extensional events in East Asia, and are likely to be a contribution to the uplift of the Tibetan Plateau.

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DMITRIENKO Liudmila V.,WANG Pengcheng, LI Sanzhong, CAO Xianzhi, Ian SOMERVILLE, ZHOU Zaizheng, HU Mengying, SUO Yanhui, GUO Lingli, WANG Yongming, LI Xiyao, LIU Xin, YU Shengyao, ZHU Junjiang.2018. Meso-Cenozoic Evolution of Earth Surface System under the East Asian Tectonic Superconvergence[J]. ACTA GEOLOGICA SINICA(English edition),92(2):814~849

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  • 收稿日期:2018-01-08
  • 最后修改日期:2018-02-12
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  • 在线发布日期: 2018-04-24
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