Xiao Ma, Institute of Geology and Geophysics Chinese Academy of Sciences, Beijing, China, Lianfeng Zhao, Institute Geology & Geophysics, Beijing, China, Xiao-Bi Xie, Institute of Geophysics and Planetary Physics, University of California at Santa Cruz, Santa Cruz, CA, United States and ZhenXing Yao, Institute of Geology and Geophysics CAS, Beijing, China