Study On Geoelectrochemical Method Technology And Demonstration In Luobuling Mining Area Of Zijinshan Mountain,Fujian Province

Under the support of the key special penetrating geochemical exploration technology of the national key research and development plan,taking the Luobuling mining area in Zijinshan,Fujian Province as an example,this paper systematically summarizes its geological and geochemical characteristics,selects the known section to carry out the method condition contrast test,determines the best working parameters,and carries out the method credibility study on this basis to verify the credibility of the prospecting prediction of the geoelectrochemical method in the Luobling mining area,combined with the geological conditions.A demonstration study on prospecting prediction is carried out in the mining area to point out the direction for the next step of ore prospecting.Through the above research,the following conclusions are obtained:(1)Through the collection and analysis of relevant geological data,we have a systematic understanding of the geological characteristics of strata,structures,magmatic rocks and orebodies in the study area.The main ore-controlling structures in the study area are NEtrending and NW-trending,and the intermediate-acid and acidic rock bodies in the study area are closely related to mineralization.Through consulting relevant data and field geological exploration,it is considered that this area has a good prospecting prospect.(2)The condition comparison test of geoelectrochemical extraction method was carried out in section 264 of Luobuling mining area,the element anomaly characteristics of five different extraction schemes were compared,and the best field geoelectric extraction survey scheme was summarized.Through the study,it is found that all the five geoelectric extraction schemes have anomalies in the known section of line 264,the anomaly intensity is high,the anomaly is clear and concentrated,the overall anomaly of scheme C is clear and obvious,the shape of the anomaly curve of Cu and Mo is the same,most of them are strong anomaly area,and the location of the anomaly area is consistent with the known orebody.(3)A study on the credibility of geoelectrochemical extraction method has been carried out in section 264 of the Luobuling mining area.The analysis results show that the location of the anomaly is in good agreement with that of the orebody,and can indicate the location of the orebody.It is proved that the geoelectric extraction method is effective in searching for concealed deposits in the residual layer of volcanic rocks.(4)Based on summarizing the element anomaly characteristics of the test section,the geoelectric extraction survey in the prediction area of Luobuling mining area in Zijinshan,Fujian Province is carried out,and the geoelectric extraction data are analyzed.The characteristics of a single element and multi-data superposition and fusion are comprehensively explained and evaluated.(5)According to the characteristics of single element anomaly extracted by geoelectricity,the superposition and fusion of multi-element data,and the comprehensive geological metallogenic background conditions,the abnormal areas with prospecting prospect of A-1,A-2,B-1 and B-2 are divided,which provides a basis for ore prospecting in the deep and marginal areas.