Petrochina Hangzhou Research Institute of Geology;
Hangzhou 310023;
China;
University of Chinese Academy of Sciences;
Beijing 100049;
China;
Key Laboratory of Ocean and Marginal Sea Geology;
Chinese Academy of Sciences;
Guangzhou 510301;
China;
Innovation Academy of South China Sea Ecology and Environmental Engineering;
Chinese Academy of Sciences;
Guangzhou 510301;
China;
South China Sea; Qiongdongnan Basin; submarine canyon; evolution;