Construction of the Continental Asia in Phanerozoic: A Review
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This work was supported by the National Key Research and Development Program of China (the DREAM―Deep Resource Exploration and Advanced Mining; Grant No. 2018YFC0603701), and the China Geological Survey (Grant nos. DD20160083 and DD20190011). We thank professor Yin An (UCLA) for his profitable discussions and constructive suggestions. We appreciate critical comments and constructive suggestions from the two anonymous reviewers that made signi?cant improvements of this manuscript.

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    Abstract:

    This is a review of the formation and tectonic evolution of the continental Asia in Phanerozoic. The continental Asia has formed on the bases of some pre-Cambrian cratons, such as the Siberia, India, Arabia, North China, Tarim, South China, and Indochina, through multi-stage plate convergence and collisional collages in Phanerozoic. The north-central Asia had experienced the expansion and subduction of the Paleo-Asian Ocean (PAO) in the early Paleozoic and the closure of the PAO in the late Paleozoic and early Mesozoic, forming the PAO regime and Central Asian orogenic belt (CAOB). In the core of the CAOB, the Mongol-Okhotsk Ocean (MOO) opened with limited expansion in the Early Permian and finally closed in the Late Jurassic–Early Cretaceous. The south-central Asia had experienced mainly multi-stage oceanic opening, subduction and collision evolution in the Tethys Ocean, forming the Tethys regime and Himalaya-Tibetan orogenic belt. In eastern Asia, the plate subduction and continental margin orogeny on western margin of the Pacific Ocean, forms the West Pacific regime and West Pacific orogenic belt. The PAO, Tethys, and West Pacific regimes, together with Precambrian cratons among or surrounding them, made up the major tectonic and dynamic systems of the continental Asia in Phanerozoic. Major tectonic events, such as the Early Paleozoic Qilian, Uralian, and Dunhuang orogeneses, the late Paleozoic East Junggar, Tianshan and West Junggar orogeneses, the Middle to Late Permian Ailaoshan orogeny and North-South Lhasa collision, the early Mesozoic Indochina-South China and North-South China collisions, the late Mesozoic Mongolia-Okhotsk orogeny, Lhasa-Qiangtang collision, and intra-continental Yanshanian orogeny, and the Cenozoic Indo-Asian, Arab-Asian, and West Pacific margin collisions, constrained the formation and evolution of the continental Asia. The complex dynamic systems have left large number of deformation features, such as large-scale strike-slip faults, thrust-fold systems and extensional detachments on the continental Asia. Based on past tectonics, a future supercontinent, the Ameurasia, is prospected for the development of the Asia in ca. 250 Myr.

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CHEN Xuanhua, DONG Shuwen, SHI Wei, DING Weicui, ZHANG Yiping, LI Bing, SHAO Zhaogang, WANG Ye.2022. Construction of the Continental Asia in Phanerozoic: A Review[J]. Acta Geologica Sinica(),96(1):26-51

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History
  • Received:September 17,2021
  • Revised:November 01,2021
  • Online: February 24,2022
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