1. State Key Laboratory of Continental Dynamics, Department of Geology Northwest University Xi'an 710069 China
2. Key Laboratory of Petroleum Resource Research, Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China
3. Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China
4. School of Geosciences China University of Petroleum Qingdao 266580 China
5. Institute of Geomechanics Chinese Academy of Geological Sciences Beijing 100081 China