1. Department of Mechanical and Industrial Engineering University of Massachusetts Amherst Massachusetts 01003 USA
2. Hawai‘i Institute of Geophysics and Planetology University of Hawai‘i at Mānoa Honolulu Hawai‘i 96822 USA
3. Key Laboratory of Shale Gas and Geoengineering Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China
4. College of Earth and Planetary Sciences University of Chinese Academy of Sciences Beijing 100049 China