FORMATION, BOUNDARY AND TECTONIC EVOLUTION OF THE METAMORPHIC BASEMENT IN SOUTH CHINA
(Summation of Study)Tang Jiafu(Institute of Regional Geological Survey of Anhui Province)
Based on field studies and relevant data,the author comprehensively expounds the formation structures,property of boundary tectonic pattern and evolutionary process of the metamorphic basement in South China,intensivelyanalyzes and discusses whether or not the Banxi Group is tectonic melange and what kind of geological body that the Banxi Group represents. The author holds that the late Archean- early Proterozoic metamorphic basement probably existsin South China , From the last phase of middle Proterozoic to the Indo-Chinese epoch, the South China plate was active. After the Indo-Chinese epoch, the South China region came to a new period of active tectonics affected by the Pacificplate.