1. Chinese Academy of Sciences, Institute of Geology and Geophysics, Key Laboratory of Petroleum Resources Research, Beijing 100029, China; Chinese Academy of Sciences, Innovation Academy for Earth Science, Beijing 100029, China; and University of Chinese Academy of Sciences, Beijing 100049, China.
2. Chinese Academy of Sciences, Institute of Geology and Geophysics, Key Laboratory of Petroleum Resources Research, Beijing 100029, China; Chinese Academy of Sciences, Innovation Academy for Earth Science, Beijing 100029, China; and University of Chinese Academy of Sciences, Beijing 100049, China. (corresponding author).