河南省嵩县九仗沟金矿综合找矿模型

    Integrated prospecting model of Jiuzhanggou gold deposit in Songxian County, Henan Province

    • 摘要: 以河南省嵩县九仗沟构造蚀变岩型金矿床地质、地球物理和地球化学等多源找矿信息为基础,全面系统地总结该矿床综合找矿流程和勘查模型. 通过区域重磁测量异常筛选找矿远景区; 1:50 000水系沉积物异常选定找矿靶区;靶区1:10 000专项地质填图,发现与金成矿有关的断裂构造带,进一步确定找矿靶区; 1:10 000土壤地球化学异常确定断裂含矿性,缩小找矿靶区;原生晕剖面微量元素峰值部位确定F1构造矿化蚀变带位置;大功率激电测深和EH-4双源大地电磁测深查明深部构造蚀变带和矿(化)体延伸特征,二者相互补充、佐证,定位预测深部找矿靶区.

       

      Abstract: Based on the multi-source prospecting information of geology, geophysics, and geochemistry on Jiuzhanggou gold deposit of structural altered rock type in Songxian County, Henan Province, this study comprehensively summarizes the integrated prospecting process and exploration model as follows:Screening the prospecting prospective areas by regional gravity and magnetic survey anomaly; Selecting the prospecting targets through the anomaly of 1:50 000 stream sediment survey; Finding the fault belts related to gold mineralization with the 1:10 000 specific geological mapping, further determining the prospecting target areas; Determining the ore-bearing potential of faults based on the anomaly of 1:10 000 soil geochemical survey to narrow down the target areas; Locating the F1 structural mineralized zone according to trace element peak position in primary halo profile; Applying high-power induced polarization (IP) sounding and EH-4 dual-source magnetotelluric(MT) sounding to identify deep structural alteration zone and orebody extension characteristics, with both methods complementing and verifying each other for positioning and prediction of deep prospecting targets.

       

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