1. Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, P.R. China.
2. School of Earth Sciences and Resources, China University of Geosciences, Beijing, P.R. China.
3. State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing, P.R. China.
4. Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, P.R. China.