Earth Science Frontiers ›› 2024, Vol. 31 ›› Issue (1): 142-153.DOI: 10.13745/j.esf.sf.2023.7.15

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Mesozoic superposed orogenic system in eastern China

REN Jishun(), LIU Jianhui, ZHU Junbin   

  1. Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China
  • Received:2023-07-01 Revised:2023-07-25 Online:2024-01-25 Published:2024-01-25

Abstract:

The Indosinian and Yanshanian orogenic movements are both important Mesozoic orogenies in eastern China. The resulted tectonic belts are neither products of the third stage of crustal evolution, as proposed by Chen Guoda, nor intracontinental (or intraplate) orogenic belts generated by intraplate dynamics, as argued by some scholars—rather, they are superposed orogenic belts created on the preformed continental crust in eastern China due to Mosozoic Paleo-Pacific dynamic system. In the past, these orogenic belts were called the peri-Pacific continent-marginal reactivated belts of eastern China. In the Mesozoic, under the effect of Paleo-Pacific dynamic system, the East Asia margin orogenic system formed along Northeast Russia-Sikhote Alin (Russia)-Japan-Ryukyu-Taiwan (China)-Palawan (Philippines) regions, while simultaneously the Mesozoic superposed orogenic system formed in the pre-existing continental crust in eastern China adjacent to the East Asia continental margin. The two orogenic systems, both driven by Mesozoic Paleo-Pacific dynamic system, developed synchronously to form the giant Mesozoic orogenic system in the Pacific tectonic domain in eastern Asia, radically changing the pre-Indosian tectonic framework of eastern Asia.

Key words: superposed orogenic belt, Indosinian orogenic cycle, Yanshanian orogenic cycle, Mesozoic superposed orogenic system of eastern China, Pacific tectonic domain

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