*Houjie Wang^1,2、Xiao WU^1,2、Naishuang Bi^1,2、James Syvitski³、Yoshiki Saito⁴ (1.Ocean University of China、2.Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology、3.University of Colorado、4.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST))