RELATIVE BLOCKS AND CONVERGENCE PROCESS DURING THE CALEDONIAN MOVEMENT IN SOUTH CHINA

This paper discussed the plate tectonic movement during the Caledonian in South China by analyzing the feature and origin of relative blocks in Caledonian Movement.During the Caledonian,Xianggui,Gannan Yunkai,Zhemin,Baoshan,Tengchong and Yangzi blocks had all relationship of the cracking of the Rodinia continent.These blocks converge and collide under the background of forming the Gondwana continent in Eopaleozoic.And then multiperioyic Caledonian Movement with different character was formed.The collision matching has the character of soft collision and weak orogenic which appear as the continent margin uplift and collision granite formed in the front of collided landmasses,also in the back and front of collided landmasses the relict seabasin was found.After the Caledonian Movement,the basic tectonic structure of South China had been set up.