1. School of Geosciences; China University of Petroleum (East China); Qingdao Shandong China
2. Laboratory for Marine Mineral Resources; Qingdao National Laboratory for Marine Science and Technology; Qingdao Shandong China
3. Department of Geological Science; University of North Carolina; Chapel Hill North Carolina USA
4. PetroChina Exploration and Development Research Institute; Beijing China
5. College of Earth Sciences, Jilin University, Changchun; Jilin China
6. Exploration and Development Research Institute, Petro China, Jilin Oilfield Company; Songyuan Jilin China