1. China University of Petroleum (East China), School of Geosciences, Qingdao 266580, China and Qingdao National Laboratory for Marine Science and Technology, Laboratory for Marine Mineral Resources, Qingdao 266071, China.(corresponding author).
2. SINOPEC Exploration Company, Chengdu 610041, China..
3. Shengli Oilfield Geophysical Research Institute, Dongying 257001, China..