首页|Tonian Tectonic-Strata Regions and their Geological Significance in China

Tonian Tectonic-Strata Regions and their Geological Significance in China

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
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The continent of China developed through the coalescence of three major cratons (North China, Tarim and Yangtze) and continental micro-blocks through the processes of oceanic crust disappearance and acceretionary-collision of continental crusts. The strata of the Chinese continental landmass are subdivided into 12 tectonic-strata regions. Based on the composition of geological features among the three main cratons, continental micro-blocks and other major global cratons, their affinities can be preliminarily deduced during the Tonian period, using evidence from sedimentary successions, paleobiogeography, tectonic and magmatic events. The Yangtze and Tarim cratons show that they have close affinities during the assembly-dispersal milestone of the Rodinia Supercontinent. The sedimentary record and magmatic age populations in the blocks suggest that there was a widespread, intensive magmatic event that resulted from a subduction process during ～1000–820 Ma, related to continental rifting around the Yangtze and Tarim cratons. However, they differ greatly from the North China Craton. The continental micro-blocks in the Panthalassic Ocean could have some missing connection with the North China Craton that persisted until the Middle-Late Devonian. In contrast, the Alxa Block showed a strong affinity with the Tarim Craton. The revised Tonian paleogeography of the Rodinia Supercontinent is a good demonstration of how to show the relationship between the main cratons and the continental micro-blocks.

SedimentarypaleogeographyToniancratonmicro-block

XU Yadong、ZHANG Kexin、HE Weihong、YU Yang、KOU Xiaohu、SONG Bowen、LUO Mansheng、WANG Lijun、MA Zhongjie、YANG Fengli

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Hubei Key Laboratory of Critical Zone Evolution,School of Earth Sciences,China University of Geosciences,Wuhan 430074,China

Central South China Innovation Center for Geosciences,Wuhan Center of the Chinese Geological Survey,Wuhan 430074,China

State Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences,Wuhan 430074,China

Center of Global Tectonic,China University of Geosciences,Wuhan 430074,China

Institute of Geological Survey,China University of Geosciences,Wuhan 430074,China

State Key Laboratory of Marine Geology,School of Ocean and Earth Science,Tongji University,Shanghai 200092,China

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This research was funded by the National Key Research and Development Program of ChinaGeological Survey of ChinaGeological Survey of ChinaGeological Survey of Chinaand the National Science Foundation of Chinaand the National Science Foundation of Chinaand the National Science Foundation of Chinaand the National Science Foundation of China

2016YFC0601005DD20190370DD20190811cdcgs20180014177210741772016the 13

2020

地质学报(英文版)
中国地质学会

地质学报(英文版)

CSTPCDCSCDSCI
影响因子：1.414
ISSN：1000-9515
年,卷(期)：2020.94(4)
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