1. 1 Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing 100871, China
2. 2 Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources by the Province and Ministry, College of Earth Sciences, Guilin University of Technology, Guilin 540001, China
3. 3 Department of Geological Sciences, University of Manitoba, Manitoba R3T2N2, Canada
4. 4 Department of Geology, University of Otago, Dunedin 9054, New Zealand