作者单位:RAO Gan(Department of Earth Sciences, Zhejiang University, Hangzhou 310027, China;State Key Laboratory for Mineral Deposits Research, Schoool of Earth Sciences and Engineering Nanjing University, Nanjing210093)WANG Ruchen,HU Huan(State Key Laboratory for Mineral Deposits Research, Schoool of Earth Sciences and Engineering Nanjing University, Nanjing210093)GU Xiangping(School of Earth Sciences and Info-physica, Central South University, Changsha, 410083, China)DONG Chuanwan(Department of Earth Sciences, Zhejiang University, Hangzhou 310027, China)