1. Key Laboratory of Metallogenic Prediction of Nonferrous Metals; Ministry of Education, Central South University; Changsha 410083 China
2. School of Geosciences and Info-Physics; Central South University; Changsha 410083 China
3. State Key Laboratory of Ore Deposit Geochemistry; Institute of Geochemistry, Chinese Academy of Sciences; Guiyang 550002 China
4. Hunan Shizhuyuan Nonferrous Metal Co. Ltd.; Chenzhou 423037 China