1. Earth System Science Programme, Faculty of Science; Chinese University of Hong Kong; Hong Kong
2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation; Southwest Petroleum University; Chengdu China
3. The Unconventional Natural Gas Institute; China University of Petroleum; Beijing China
4. Institut de Physique du Globe de Strasbourg, UMR 7516 CNRS; Université de Strasbourg/EOST; Strasbourg France