School of Marine Sciences Provincial Key Laboratory of Marine Resources and Coastal Engineering Yat-sen University 519000;
Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) 519000;
MLR Key Laboratory of Marine Mineral Resources Marine Geological Survey of Natural Resources 510075;
cold-seep carbonates; geochemistry; sedimentary environment; fluid source; Haima cold seep; Shenhu area; South China Sea;