Seismic profiling-based modeling of geometry and sedimentary architecture of the Late Pleistocene delta in the Beibu Gulf, SW of Hainan Island (South China Sea)

•Seismic data and ordinary kriging are used for modeling of paleodelta’s geometry.•Two deltaic depocenters occur, with sediment thickness up to 80 m.•Distributary channels and deltaic clinoforms dip from Hainan Island.•Hainan Island is the main source of paleodelta’s sediments (65–56 kyr BP).