Prediction Of Concealed Copper Deposits By The Geoelectric-geochemical Method In The Guoqing Mine Area, Hunan Province

This paper is based on the research project of the Research Institute of the hidden deposit Institute of Guilin University of Technology and the 306 team of the nuclear industrial Geological Bureau of Hunan province.The research work on the exploration of hidden copper deposits is carried out in the Guoqing Mine Area.The Guoqing Mine Area is broken by a NE direction which is covered by a thick layer of red layer.This fault belongs to a part of the regional longevity Hengyang Guanyinge fault,which has been found in the Hengyang basin.The difficulty of prospecting in the routine exploration is relatively large because of the red layer in the study area.In view of the problem of copper deposits,we carried out the prediction research of geo-electrochemical integration technology in this mine area.In this paper,on the basis of the systematic collection of previous research data,through the field measurement sampling,comparing the metallogenic factors of adjacent mining areas,analyzing the characteristics of regional metallogenic background,geological features and geological features of the mining area,the application and effect of the geochemistry method in the study area are systematically analyzed and studied,and the following master is obtained.To achieve results:1?The main mineral deposits in the Guoqing Mine Area are copper mines.The copper mineralization occurs in the long longevity-Hengyang-Guanyin regional large fracture?F₁?and the lower secondary NW fracture zone,which is closely related to interlayer breakage and hydrothermal activity.Copper bearing strata,interlayer breakage and hydrothermal activity are the main factors of metallogenic control in this area.The area of interlayer breakage and copper bearing strata intersecting from the North East to the main fault and its side is a favorable metallogenic area,and the type of ore deposit is a vein copper deposit.2?The comparison of the geo-electrochemical feasibility test and the secondary halo of the soil is carried out on the known section of the No.3 line in the black stone mine.The results show that the integrated technique of geochemistry can be used to detect a clear geochemical anomaly,and the anomaly set above the shallow ore bodies and the buried concealed orebodies.The middle distribution area just indicates the location of the hidden copper deposit,and further proves that the geo chemical integration technology is scientific and reasonable in the Guoqing Mine Area.3?Using direct graphic method,tired frequency method and EDA method,three methods are used to calculate the abnormal lower limit of the study area and compare it.It is found that the abnormal scale and intensity of the area of the area of the area and the abnormal information point are not missing,so this method is more suitable for the data processing in this area,and it is the area of this area.4?Through the data obtained by the geoelectric extraction,the R type cluster analysis and the R type factor analysis found that the relationship between the main metallogenic element Cu and the Bi is most closely related,and the Cu-Bi reflects the high temperature metallogenic information,and the Cu element is often related to the basic magmatic activity,which reflects that the main metallogenic element Cu in this region is the intrusion of the late high-temperature basic magma.In addition,Bi can also serve as an important indicator element for finding hidden copper deposits in the study area.5?Combining geological and geoelectricity to extract the abnormal distribution characteristics of single element and the combination of element combination information,the prospecting area of I,II,III and IV is divided in the study area,which provides the basis for the deep prospecting in the study area.The second section of the Middle Proterozoic Leng Jia Xi group?Pt₂ln²?is an important ore source layer in the study area,and the anomalies are mainly controlled by the main fault F₁ and the secondary fault F₂ and F₅.The industrial copper mine has proved the accuracy of the prospecting area,providing the basis for the next prospecting work.