THE MULTI-ARC BASIN SYSTEM ON THE SOUTH-EASTERN MARGIN OF THE PAN-CATHAYSIAN CONTINENTAL GROUP
YIN Fu guang 1, WAN Fang 2, CHEN Ming 2(1.Faculty of Earth Science, China University of Geosciences, Wuhan, China; 2.Chengdu Institute of Geology and Mineral Resources, China)
The south eastern margin of the Pan Cathaysian continental group consists of the Yangtze continental plate and the paleo continental margin of South China. South China structural province is the multi arc basin system on the south eastrn margin of the Pan Cathaysian continental group theoretically which is one of the three continental groups - Laurasia group, Gondwana group, and Pan Cathaysian continental group based on the multi arc basin system. The multi arc basin system on the south eastern margin of the Pan Cathaysian continental group includes the Zhejiang Fujian Yunkai arc, Fujian Guangdong back rac basin, Wuyishan arc, Hunan Guangxi back arc basin, Jiangnan arc, and Xuefengshan foreland bulge. In the process of collision, convergance and suture between the Pan Cathaysia continental group and paleo Pacific plate, it is formed by the black arc sea floor spreading and back arc basin collapse, arc arc collapse and arc continent collision and transformed into a foreland basin at the final stage.