Research And Prospecting Prognosis Of Gold Polymetallic Deposits By Geoelectrochemical Integrated Technology In Shilongshan Area,Western Henan Province

The coverage area is at the edge of different geological structural units and the edge of the large metallogenic belt.The metallogenic geological conditions are good,the exploration degree is low,and the prospecting resources have great potential.The Xiaoqinling-Lushan-Xiongshan gold polymetallic metallogenic belt is located in the southern margin of the North China Plate and is the second largest gold mining area in China.However,due to the complex and varied topography and geomorphology,alternating vegetation cover and extensive coverage of surface loess,the traditional and conventional geological exploration methods are difficult to play.In recent years,there has not been a major prospecting breakthrough.In this regard,I specially selected the pre-existing area of the Shilongshan gold polymetallic deposit in the Yushan area of the western Henan Province as a test area,and conducted an exploratory study on the electrochemical integration technology of the deep prospecting problem.Through the feasibility study of known sections in the neighboring Shizhaigou gold deposit and the area prospecting prediction experiment in the southern part of the pre-examination area,the regional ore-forming background,the geological characteristics of the regional deposits and the geological characteristics of the study area were summarized and initially obtained.The following results and understanding:1.Through the experimental study on the susceptibility of soil ionic conductivity,soil pyro-mercury and geoelectric extraction methods in the known section of Shizhaigou gold mine,clear geoelectricity is detected above the known ore body.Chemical anomalies indicate that the electrochemical method is feasible and effective in finding hidden gold polymetallic ore in this area.2.The characteristics of trace element extraction(fractal,coefficient of variation,geoelectric extraction ratio,enrichment factor)extracted from geothermal extraction in Shilongshan pre-examination area were analyzed and found to have similar geoelectric anomalies with the Shizhaigou Au deposit.3.Using factor analysis combined with single element anomaly law to obtain three types of element combinations,namely class I: Cr-Ba-Ni-As-Bi-Zr-Li-Ag-Co element combination;class II: Bi-La-Zn-Cu element combination;Class III: Au-Pb-RHg-Con element combination.The combination of Class I reveals the geological activities of the study area and the multi-period of mineralization;the combination of II indicates that gold mineralization is closely related to the medium-acid magmatic activity;the combination of III indicates that the prospecting mark of Au in this area is RHg and Pb.4.Comprehensive elemental anomaly,multivariate statistical analysis of factor score anomalies and elemental geochemical behaviors and regional geological conditions to define a type I prediction zone;two types of class II prediction zones(II-1 and II-2);Two zones(III-1 and III-2).Initially in the Class I prediction area,the abnormally well-matched 02 line 45-47 measuring points have been verified by surface engineering,and a good industrial gold ore body has been identified.It is further confirmed that the electrochemical integration in the area is feasible and effective in finding hidden deposits.And the side proves that the measured and estimated faults F1-1 and F20 do exist.In addition,after reviewing and collecting the geological characteristics of the deposits around the pre-examination area,comparing the regional geological conditions,the comprehensive geoelectric extraction profile test and the area experimental results,summarizing the geological prospecting signs,geoelectric extraction and prospecting marks,and attempting to establish the area of the area.The ideal geological model of electrochemical anomaly;in order to provide the electrochemical theoretical basis for the prospecting of the deep and Shizhaigou deposits in the Shilongshan area,and also provide a new idea for prospecting in the Laoshan loess area.