TECTONIC EVOLUTION OF THE NORTH JIANGSU-SOUTH YELLOW SEA BASIN

The North Jiangsu-South Yellow Sea Basin is a composite residual basin superimposed by multistage and multitype basins. They have similar geologic setting and alomost the same genetic evolution. Since the Lower Yangtze Plate was formed in the Proterozoic, the two basins have mainly experinced the Paleo-Mesozoic platform, the Mesozoic foreland basin and the strike-slip extensional basin periods as well as the Cenozoic fault basin and down-warped basin periods. During the Paleo-Mesozoic developing progress, they were a whole mass. In the Late Cretaceous, the differentiation appearred in the evolution of the two basins. Extensional basin groups were developed, and a series of listric fault depressions were formed superimposed on the Meso-Paleozoic basins. The development and distribution of listric fault depressions were apparently controlled by the thrust faults preexisting in the internal of the Paleozoic .