1. Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, School of Geosciences and Info-physics, Central South University, Changsha 410083, China
2. School of Marine Science and Engineering, Hainan University, Haikou 570228, China
3. College of Water Resource & Hydropower, Sichuan University, Chengdu 610065, China