1. Key Laboratory of Coastal Wetland Biogeosciences, China Geologic Survey, Qingdao, China;
2. Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China;
3. School of Earth Science and Geological Engineering, Sun Yat-Sen University, Guangzhou, China;
4. State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Nanjing, China;
5. Department of Geography, Lingnan Normal University, Zhanjiang, China