Geophysical Characteristics And Metallogenic Information Of Bayangol Area,Chifeng,Inner Mongolia

This paper is based on the“Prospecting and technical application demonstration project of Nanxun Decoration Survey Area in Greater Khingan Range”implemented by the China Geological Survey(Beijing)Cooperative Participation and Development Research Center of the China Geological Survey(Beijing).The sweeping surface and the 1:5 thousand IP ladder profile measurement work,the purpose of which is to delineate the anomaly area of the anomaly,analyze the ore prospects of the anomaly area,and conduct prospecting prediction.Through the full participation in the project,the cooperation completed the following tasks:150km~2 for the laser sweeping and 20km for the laser profile.The physical,magnetic and density characteristics of the physical specimens were measured.Participate in data processing,complete the graph of apparent resistivity and apparent polarizability,plane contour map and plane profile.The metallogenic structure was prompted to provide a basis for metallogenic prediction.The results achieved are as follows:(1)In the anomaly zone,the apparent polarizability is higher than 2.9%,and the apparent resistivity is lower than 3000 ohm meters,which is the high apparent polarizability medium and low apparent resistivity region,combining two known Bayernda dams and dimensions.The geophysical characteristics of the Rasto deposit indicate that the anomaly in the area is amineral-induced anomaly,and the medium-low apparent resistivity is the indirect indicator of prospecting.(2)Among the 8 anomalous areas delineated,the JD3 and JD4 anomaly areas are large,and the polarization zones of the 3 sub-anomalies and JD4-1 anomalies in the JD3 anomaly zone are all greater than 4.2%,and the polarization effect is the strongest.It is a prospecting target area with greater potential.(3)The KGR anti-interference electric instrument was tested,and its anti-interference effect was better than that of the conventional electric instrument,and accurate abnormal data was obtained.The performance and consistency of the instrument meet the requirements,work normally and have strong anti-interference performance compared with the conventional electro-optical instrument,and can obtain stable data under the condition of low signal-to-noise ratio or even negative signal-to-noise ratio;the natural potential is in the condition of several tens of millivolts.Underneath,the signal can still be measured;the work efficiency is high,and it has the advantage of being able to work at the same time.