1. State Key Laboratory of Organic Geochemistry (SKLOG), Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
2. CAS Center for Excellence in Deep Earth Science, Guangzhou, China
3. University of Chinese Academy of Sciences, Beijing, China
4. Key Laboratory of Natural Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, China