CAS Key Laboratory of Gas Hydrate;
Guangzhou Institute of Energy Conversion;
Chinese Academy of Sciences;
Guangzhou 510640;
China;
Key Laboratroy of Submarine Geosciences&Second Institute of Oceanography;
Ministry of Natural Resources;
Hangzhou 310012;
China;
School of Environmental and Chemical Engineering;
Shanghai University;
Shanghai 200444;
China;
Institute of Environmental and Biogeochemistry(eBig);
School of Earth Sciences;
Zhejiang University;
Hangzhou 310027;
China;
Carlsberg Ridge; Tianxiu Hydrothermal Field; surface sediments; biomarkers;