Application of Geophysical Logging in Copper-nickel Polymetallic Mining Area
Based on the comprehensive geophysical logging technology of multiple parameters,the comprehensive processing and interpretation of non-ferrous metal geological survey logging data are carried out under the constraints of drilling records and laboratory test data.The natural radioactivity,density,elec-trical property and magnetic characteristics of the main lithological sections of the Cu-Ni polymetallic depos-it are revealed,and the response characteristics of the geophysical logging curve of the ore-bearing strata are analyzed and summarized.The results show that high apparent polarizability,high magnetic susceptibili-ty,high apparent density and low apparent resistivity are the most typical geophysical logging response char-acteristics of the main ore-forming strata in the area,and the anomalies are caused by pyritization and mag-netization of gabbro.Salinity provides sufficient theoretical basis for qualitative and quantitative classifica-tion of ore-bearing strata in boreholes and non-coring boreholes with insufficient heart rate,and preliminar-ily establishes a geophysical logging technology system for deep resource exploration.
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