Discussion on the effectiveness of geophysical prospecting methods for tunnel in Xiaoqinling Gold Mine

Based on comparison and analysis of the exploration effects of various geophysical methods used in tunnels of Xiaoqinling Gold Mine, the combination of prospecting methods is concluded that the induced polarization method can be used to detect the low resistance and high polarization body near the tunnel, and both the high density resistivity method and transient electromagnetic method used to search for low resistance body with a certain buried depth inside the tunnel.