School of Geoscience and Technology Petroleum University 610500;
College of Geosciences University of Petroleum(Beijing) 102249;
College of Marine Science and Technology University of Geosciences 430074;
Working Station for Postdoctoral Scientific Research Oilfield 257001;
Research Institute of Petroleum Exploration Oilfield Company 300450;
College of Geography Normal University Mongolia 012000;
basin structure; extensional feature; rifting process; Pearl River Mouth Basin; northern South China Sea;