Combined Prospecting for Lead-zinc Deposit by Resistivity Tomography and Electrical Sounding of Induced Polarization

In exploration of Lead-zinc deposit in Luanchuan region, both the resistivity tomography and the electrical sounding of induced polarization methods are used. The hidden structures in the studied region are mainly prospected by the resistivity tomography method that uses dipole-dipole of the high density resistivity survey system, in which number of electrodes and pole spacing are decided according to actual conditions. Variation regularity of induced polarization parameters is mainly studied by using symmetry 4-pole electrical sounding method, in which the minimum distance of the AB/2 is 3 m, and the maximum distance of the AB/2 is 500 m. For ore bearing structures, the induced polarization parameters show high anomaly, and the apparent polarizabilities are between 15% and 40%, combining these two methods, we could obtain quickly and exactly the satisfactory results of prospecting for the mine in the studied region.