高密度电法在福建大田雄峰铅锌矿区找矿中的应用

Application of Close-grid Electrical Method on hunting for Lead-zinc Ore in Datian County, Fujian Province

电阻率法找矿已被广泛应用 ,但对成矿成因复杂、含矿品位低的散点状和间断细脉状浸染型铅锌矿 ,难于取得效果。应用高密度电法 ,通过专用软件处理系统 ,对等 ρs影像剖面成果进行综合分析 ,解释主要控矿构造、地层岩性变化及矿体赋存特征 ,达到找矿目的。

The resistivity method has been widely used in the ore prospecting, but it is hard to apply hunting for the scatter and discontinued veinlet disseminated lead-zinc deposits of complicated genesis and low grade. Associated with the information processing by a special software and the comprehensive analysis of contours map of apparent resistivity (ρs) section, the results gained by the close-grid electrical method can be used to explain the main ore-controlled structures, the strata and lithological changing and features of orebody occurrence. Therefore, it is possible to have better results of searching for those deposits by the close-grid electrical method.