Study On The Application Effect Of Comprehensive Electric Prospecting In A Lead-zinc Deposit In Inner Mongolia

The ore bodies of the Jiawula-Chaganbragan Pb-Zn-Ag polymetallic deposit in Xin Barag Youqi,Inner Mongolia are all veins in the tectonic fracture zone.The ore-prospecting practice in recent years has proved that the west extension zone of this zone has good ore-forming and enrichment conditions.Located in the west side of Jiawula-Chaganbragan Pb-Zn-Ag polymetallic deposit,A lead zinc mining area has a good prospecting prospect.After a high summary of the previous geological work in the research area,it is not difficult to find that in the previous geological exploration work,various working methods are relatively more involved,the early data is chaotic,and the authenticity of many data is in doubt.Geophysical prospecting method is relatively single,basically give priority to with area work,deep information is very limited,the degree of geological interpretation is not enough,the degree of comprehensive research is low,The degree of comprehensive research is low,and the degree of prospecting work by means of comprehensive geophysical exploration is far from enough,and the comprehensive understanding of mining area is low,so the prospecting results and the updating of knowledge cannot meet the needs of current prospecting work.Based on the above questions,it is necessary to be on the west side of the periphery of the Jiacha mine,to carry out comprehensive electric exploration application effect research on the basis of previous exploration work,taking advantage of the complementary advantages of various methods,conducting experimental research in the research area.On the one hand,to identify possible ore-bearing structures and their relationship to identified orebodies,to provide guidance for the increase of reserves in The Jiacha mining area;On the other hand,it verifies the effect of comprehensive electric prospecting for lead-zinc ore.It provides technical support for the same type of lead-zinc deposit prospecting in China.This geophysical exploration conducted a 1:5000 time domain induced polarization method（TDIP）scan in the exploration area to determine the geophysical anomalies.On this basis,audiomagnetotelluric method（AMT）and induced-polarization sounding line（1:2000 scale）were deployed according to IP anomalies to identify the deep extension of the anomalies and whether whether it was caused by ore-induced factors.Through this geophysical exploration,an I₂ anomaly is delineated in the exploration area,the analysis shows that the northeast of the anomaly has a good prospecting potential for Pb-Zn.The research results show that the ore-bearing structure of the Jiacha mining area has a tendency to continue to extend to the west,and the western periphery lead zinc mining area has a certain prospecting prospect.The interpretation of anomalies by a single geophysical method is not comprehensive enough.The combined geophysical techniques of scanning and sounding can be used to interpret anomalies in the three-dimensional space,which improves the reliability of anomalies and reduces the non-uniqueness of geophysical exploration.