作者单位:Guo Xianzhong(Sichuan Provincial Bureau of Geology and Mineral Exploration and Development Geophysical team, Chengdu 610072, Sichuan, China)Xiao Yuanfu(Chengdu University of Technology, Chengdu 610059, Sichuan, China;Key Laboratory of Geoscience Spatial Information Technology, Ministry of Land and Resources, Chengdu 610059, China)Zhao Yana,Xiao Ruiqing,Bai Hailing,Chang Jing(Chengdu University of Technology, Chengdu 610059, Sichuan, China)