1. Ph.D. Candidate, State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; Ph.D. Candidate, Univ. of the Chinese Academy of Science, Beijing 100039, China.
2. Research Institute of Petroleum Exploration and Development, PetroChina Tarim Oilfield Company, Korla 841000, China.
3. Professor, State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China (corresponding author).
4. Assistant Professor, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.