DEVONIAN SEQUENCE STRATIGRAPHY AND SEA-LEVEL CHANGES WITHIN THE SOUTH CHINA PLATE

The South China plate,lying between Gondwana and Boreal continental group (North America,East Europe,Siberia etc.),was a part of the Cathaysian continental group in the Palaeo-Tethys of East Asia during Devonian time.The Devonian strata are widely distrubuted and well developed in South China,and may act as one of the type areas of the Devonian strata in East Asia.In the light of the division and correlation of sequence stratigraphy of more than ten Devonian sections in Guizhou,Guangxi,Longmen Mountain in Sichuan and South Qinling Mountain area,twenty-one sequences and T-R cycles in response to the second-order sea-level changes are suggested,and comparable to the Devonian T-R cycles in the Euramerican continent by Johnson (1985 and 1992)and Ross (1988). The similarities and differences between them and controlling factors are herein discussed.