This research was financially supported by Open Research Fund Program of Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University), Ministry of Education(Grant No. 2018YSJS02), the research program of Hunan Province Science and Technology Department (Grant No. 2017SK2271,2015JJ2198, 2015SK20712) and the research program of Hunan Province Education Department (Grant No.15K021,15C1446, 14C0220) .