1. State Key Lab of Geological Processes and Mineral Resources, China University of Geosciences (Beijing), Beijing, China
2. Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, China
3. Institute of Resource and Environmental Engineering, Hebei Geo University, Shijiazhuang, China
4. School of Earth and Environmental Sciences, University of Waterloo, Waterloo, Canada
5. Department of Earth and Environmental Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, Australia