[1] Faculty of Land and Resource Engineering, Kunming University of Science and Technology, Kunming,Yunnan,650093, China
[2] Kunming Sinotech Mineral Exploration Co., Kunming,Yunnan,650224, China
[3] Shaanxi Institute of Geology and Mineral Exploration, Xi'an,Shaanxi,700100, China
[4] Kunming Prospecting Design Institute of China Nonferrous Metals Industry, Kunming,Yunnan,650051, China