1. a Open Laboratory of Ore Deposit Geochemistry People's Republic of China and State Key Laboratory of Mineral Deposits Research , Institute of Geochemistry, Chinese Academy of Sciences Nanjing University , Guiyang 550002, Nanjing, 210093, Peoples Republic of China
2. b The Research Center of Mineral Resources Expbration , Chinese Academy of Sciences , Beijing, 100101, People's Republic of China
3. c Chengdu University of Technology , Chengdu, 610059, People's Republic of China