The Application Of Magnetic Survey In The Middle Part Of The Eastern Kunlun Metallogenic Belt

According to the results of high-precision aeromagnetic survey,the regional geological information can be collected quickly and conveniently,so as to recognize the potential local aeromagnetic anomalies caused by the ore,which can provide high-quality geophysical basic data for the prospective investigation of mineral resources.This paper discussed seven representative abnormal areas by analyzing and screening 1:50000 scale high-precision aeromagnetic data,including Tawenchahan iron polymetallic deposit,Xiarihamu copper-nickel sulfide deposit,Lalinggaoli river polymetallic deposit,Zaohuohexi iron polymetallic deposit,Galinge iron polymetallic deposit.The results reflect a clear corresponding relationship between these aeromagnetic anomalies and known mineral deposits(spot),which shows that high-precision aeromagnetic survey is of great significance in the exploration of iron polymetallic deposits and cooper-nickel sulfide deposits.In this paper,according to the information of geology and minerals,magnetic properties of rock and ore,characteristics of 1:50000 scale aeromagnetic anomalies,characteristics of 1:50000 scale and 1:10000 scale surface magnetic anomalies,combined with the means of geophysical prospecting and the drilling data,the geological background and characteristics of aeromagnetic anomalies are ultimately interpreted,which lays the foundation for the study on metallogenic geological background,summary of regional metallogenic regular,and analysis of the relationship between local aeromagnetic anomalies and minerals.Aeromagnetic anomalies reflect the comprehensive information of deep geological body.During the process of anomaly inspection,anomalies should be classified firstly by large scale ground high precision magnetic survey to recognize detailed characteristic.Then On this basis,the comprehensive methods such as geophysical and engineering verification are used to verify the anomalies with prospecting significance,and the causes of aeromagnetic anomalies,the ore bearing property and prospecting significance of magnetic bodies could be comprehensively understood.The study in this paper provides technical support for such basic geological investigation projects in the future,which is conducive to rapid recognition and extraction of aeromagnetic anomaly information.On the basis of comprehensive information research,it has a good application to predict the metallogenic prospective zone,optimize the prospecting target area,and promote social and economic benefits.