Comprehensive exploration method and deep prospecting prediction in Nanzhaobeigou shallow overburden area of Nanyang City,Henan Province
In order to find a rapid and effective comprehensive method for ore prospecting in overburden area,a 1∶10 000 high-precision magnetic survey,a IP mid-gradient profile and a wide-area electromagnetic sounding geophysics were carried out in Nanzhaobeigou gold polymetallic deposit of Nanyang City,Henan Pro-vince.The re-sults show that:① 1∶10 000 high magnetic survey reflects the distribution characteristics of geological body and fault structure.② The low resistance and high polarization zone identified by the IP mid-gradient profile is caused by mineralization alteration of metals.③ Wide-area electromagnetic sounding shows that the deep anomaly corre-sponds well with the mineralization alteration zone.A large-scale lead-zinc-tungsten orebody has been found through drilling engineering.
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