THE SEQUENCE STRATIGRAPHY OF TERRESTRIAL FACIES OF THE TUNXI BASIN IN SOUTH ANHUI
Yu Xinqi; Wang De'en( No. 332 Geological Party of Anhui Bureau of Geology and Mineral Resources, Huangshan 245000)
Based on 1:50000 scale regional survey of the basic succession of variety of terrestrial facies depositional formations in theMesozoic Tunxi - Xiuning Basin, this paper has described and analyzed the corresponding depositional environment and depositional facies, and divided the Jurassic - Cretaceous strata into 4 - grade stratigraphic sequence in light of interfaces majorly controlled by tectonic process. And the corresponding terrestrial facies depositional system tract has been delimited and sequence stratigraphic analysis has been made on the red -bedded basin according to different relationship of sparial distribution of depositional system with sequence style.