The Application of Induced Polarization Method in Gariatong Silver-lead Deposit Exploration in Tibet

The application effect of the induced polarization method in the silver-lead molybdenum mine in Shenzha County of Tibet is introduced.Based on the IP intermediate gradient and IP sounding,the authors delineate five induced polarization anomalies,and explain the characteristics of anomalies source and the polarized object combining with the IP characteristics and elecrical properties of rock and ore.It is suggested that Mη1,Mη2,Mη5 show low resistivity,ηs shows low amplitude and its anomalies scale is small,while Mη3,Mη4 show low resistivity,ηs shows high amplitude and its anomaly scale is large.Finally,the authers give appraisal based on geophysical prospecting and effectiveness,which provide the evidence for further survey and geological work.It is of certain reference signifance in looking for the same type mineral deposits in the region.