1. Key Laboratory of Cenozoic Geology and Environment Institute of Geology and Geophysics, Chinese Academy of Sciences Beijing 100029 China
2. Innovation Academy for Earth Science Chinese Academy of Sciences Beijing 100029 China
3. University of Chinese Academy of Sciences Beijing 100049 China
4. Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi Jiangsu 214151 China