1. School of Marine SciencesSun Yat‐sen University Guangzhou 510006 China
2. Key Laboratory of Offshore Oil Exploration and Development of Guangdong Higher Education Institutes Guangzhou 51006 China
3. Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering Guangzhou 510006 China
4. School of GeographySouth China Normal University Guangzhou 510631 China
5. Guangdong Marine Geological survey institute Guangzhou 510075 China