Stratigraphic Framework of the Cryogenian in China |
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| Authors: | YU Yang YE Qin ZHANG Kexin HE Weihong SONG Bowen XU Yadong KOU Xiaohu WANG Jiaxuan YANG Fengli |
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| Institution: | 1 Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China;2 State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan 430074, China;1 Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China
2 State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan 430074, China; 3 State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China |
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| Abstract: | The Cryogenian is a critical period in the history of the Earth. It is marked by multiple extreme climate changes that caused alternating global glacial and interglacial intervals. These dramatically changed the sedimentary system, and metal ores and source rocks distributed widely during this period. Therefore, studying the Cryogenian stratigraphic framework and sedimentary basins is important to improve the stratigraphic resolution for metal mineral and hydrocarbon prospecting and exploration in China. This review paper firstly divides three tectonic-stratigraphic regions in China in the Cryogenian, including the tectonic-stratigraphic regions of Great South China, Xingmeng-Tarim, and North China. Secondly, geochronologic data and geological records are combined to clearly depict the Cryogenian sedimentary sequence of continental blocks and micro-continental blocks in different tectonic-stratigraphic regions. The results were used to propose a new comparison scheme of stratigraphy for the Cryogenian in China. Finally, according to differences of sedimentary evolution and tectonic evolvement, sedimentary basins and their lithofacies paleogeography are identified and summarized, respectively. |
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| Keywords: | Cryogenian stratigraphic framework correlation basin palaeogeography China |
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