Comprehensive Geophysical Methods Applied Research To Find Lead-zinc Mine In Xiao Yinchang

After several years of geological survey, a small amount of lead-zinc has beendiscovered instead of large-scale ore body in shallow of Xiao Yinchang MineArea.In order to confirm whether there is lead-zincore,especially a possibility tofind lead-zinc ore underground several hundred to almost one thousand meters，comprehensive geophysical survey was applied include precision magneticsurvey,dual frequencyinduced polarization method and AMT to prospect for theshallow and deep lead-zinc depositin Xiao Yinchang. The function of the formertwo methods is learning superficial structure and the distribution of lead-zinc orebody and the latter effect is solving problem of downward stretch of fracture zoneto confirm whether there is a possibility to exist room of forming and reserving orebody.During researching，fracture analysis of wavelet was applied to precisionmagnetic survey data to highlight the information of structure. whereby，five faultzone were inferred and coincide with geology data. Compared with the date of dualfrequency induced polarization method, it was proved by geology data. ReversedAMT data shows the existence of fault zone which been seen on surface and thematter of downward stretch of the fault zone. Three geophysical methods havereached a relatively satisfactory results, this integrated geophysical prospectingmethod in terms of use provide some references for.