1. MNR Key Laboratory of Marine Mineral Resources, Guangzhou Marine Geological Survey, Guangzhou 510075, China.
2. Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China.
3. Research Center for Earth System Science, Yunnan University, Kunming 650091, China.
4. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
5. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
6. Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, China.
7. School of Earth Sciences and Engineering, Sun Yat-sen University, Guangzhou 510275, China.