TECTONIC EVOLUTION AND PROTOTYPES ANALYSIS FROM NEOPROTEROZOIC TO EARLY PALEOZOIC IN SOUTH CHINA

At the end Mesoproterozoic,Jinning movement takes place.Collisional orogenic belts generate around the edge of Yangtze block in South China.Huaxia block and Sichuan-Yunnan-Tibet block collide with Yangtze block and form South China ancient continent,founding basement for basin generation from Neoproterozoic to early Paleozoic.From Neoproterozoic to early Paleozoic,South China experiences series of tectonic evolution as "block rift,divergence and convergence",and forms different basin prototypes with different evolution histories around and in Yangtze block.At the southern and northern edge of Yangtze block,basin prototype evolution process is from rift,passive continent margin depression to foreland basin.In Yangtze block,carbonate platform deposited under block divergeoce and extension background develops to intraplatform depression basin formed uoder block convergence and compression background.After Caledonian movement,South China continent has been newly accreted and unified and the basic tectonic pattern has been formed.