*Chenglin Gong^1,2、Yingmin Wang^1,2、Ronald J. Steel³、Michele Rebesco⁴、Stefano Salon⁴ (1.State Key Laboratory of Petroleum Resources and Prospecting (China University of Petroleum, Beijing), Beijing 102249, China、2.College of Geosciences, China University of Petroleum (Beijing), Changping, Beijing, 102249, China、3.Department of Geological Sciences, Jackson School of Geosciences, The University of Texas, Austin, Texas78712, USA、4.Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Borgo Grotta Gigante 42/C, 34010 Sgonico, Trieste, Italy)