Changchun Pan1, Dehua Peng1,2, Min Zhang1,2, Linping Yu1, Guoying Sheng1, Jiamo Fu1
1State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
2Research Institute of Petroleum Exploration and Development, Qinghai Oil Company, CNPC, China