1. Department of Geography and Spatial Information Technology; Ningbo University; Ningbo China
2. Key Laboratory of Marine Sedimentology and Environmental Geology; First Institute of Oceanography, SOA; Qingdao China
3. Laboratory for Marine Geology; Qingdao National Laboratory for Marine Science and Technology; Qingdao China
4. University of Chinese Academy of Sciences; Beijing China
5. Key Laboratory of Geographic Information Science; East China Normal University; Shanghai China
6. Department of Geology; Lund University; Lund Sweden
7. Centre for Past Climate Studies and Arctic Research Centre, Department of Geoscience; Aarhus University; Aarhus C Denmark
8. Key Laboratory of Marine Chemistry Theory and Technology (Ocean University of China); Ministry of Education/Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology; China
9. Institute of Marine Organic Geochemistry; Ocean University of China; Qingdao China