The temporal and spatial configure relation of sedimentary systems and sequence stratigraphic framework of Lingshui Formation in Qiongdongnan Basin

Based on the principles of sequence stratigraphy and sedimentology, sequence-stratigraphic framework of Lingshui formation in Qiongdongnan Basin was established, and the temporal and spatial configure relation of sedimentary systems were also studied. The Lingshui Formation was classified into three tertiary sequences.The sequences and system tracts were controlled by distribution of the subsidence centers.And the deposition was mainly controlled by the fault-break zones in the basin boundary.Each LST are limitedly developed, and the TST and HST are well-developed.There are six depositional systems in this area, they are fan delta, delta, coastal plain, and shallow sea respectively.The evolution of the depositional system was studied and the characteristics of the temporal and spatial relation was summarized.