1.Geological Survey of Inner Mongolia,Hohhot 010020,China; 2.Second Hydrogeology and Engineering Geology Institute of Inner Mongolia,Erdos 017000,China; 3.The First Geological and Mineral Resources Exploration and Development Institute of Inner Mongolia,Hohhot 010100,China
Abstract：The Wunuer lead zinc silver deposit is located in Wunuer-Wuerqihan area of Xingan geosynclines, Inner Mongolia. The surface of the whole mining area is of vegetation, and the geological prospecting indicator is not obvious. In the process of ore prospecting, the integrated geophysical and geochemical methods played an important role in the delineation of orebodies. Geochemical survey shows that the ore-forming elements include Pb, Zn and Ag, the area is large, the components are complex, and the concentration zone is obvious. With high precision magnetic method, the authors detected that the mining area is distributed in a buried rock contact zone, and mineralized rocks have high polarization rate (ηs = 3%) and high resistivity (ρs= 600-1 000 Ω·m). All of the above data are important indicators for ore-prospecting. This paper summarizes the geological, geophysical and geochemical characteristics of the deposit, and puts forward the prospecting method in the Da Hinggan Mountains, which provides reference for further prospecting in this region.
