1. Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China
2. University of Chinese Academy of Sciences, Beijing, China
3. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, China
4. College of Energy Sciences Resources, Chengdu University of Technology, Chengdu, China
5. College of Earth Sciences, Chengdu University of Technology, Chengdu, China