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《JOURNAL OF CHENGDU UNIVERSITY OF TECHNOLOGY》 1998-02
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EVOLUTION OF SEDIMENTATION OF SOUTH CHINA PLATE IN THE HERCYNIAN INDOSINIAN STAGE

Liu Wenjun (Chengdu University of Technology, China)  
The evolution of sedimentation of South China plate in the Hercynian Indosinian stage can be divited into five substages from its occurrence to subduction, which corresponds to Ⅱ cycle of the relative sea level change, and the Dongwu movement is the turning point, which took place between the Early and Late Permian. The distribution characteristic of sedimentary basins is that two craton basins sandwich a NE strike extensional basin and margin basin. The extensional basin formed along the combination belt of two landmasses in the Caledonian movement from south to north, and the Jiang Shao fault played an important role in the formation process. The carbonate predominates in the Yantze Craton basin of the wert, the terrigenous clast predominates in the Huaxia Craton basin of the east, and the siliceous pelitic rock of deep water with turbidite and basic volcanic rock is predomenant in the middle extensional and margin basins. These characteristics are similar to Caledonian stage and suggest that the sedimentation of South China plate in the Hercynian Indosinian stage took place in an extensional stress environment and it did not get in a stable stage after Caledonian movement. For this reason, the view of the accordion open close or polycyclic orogenesis may be significant.
【CateGory Index】: P542.4
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