1. College of Geo-Exploration Science and Technology, Jilin University, Changchun 130021, China
2. Department of Earth Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
3. Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112, USA
4. Department of Earth Sciences, University of Southern CA, Los Angeles, CA 90089-0740, USA