改进的三极装置激电测深勘查微细浸染型金矿的应用效果

Application of the Advanced Three-Pole Array to Microscopic Disseminated Type Gold Deposit

简述了勘探区微细侵染型金矿地质特征,岩(矿)石电阻率、充电率电性参数特征。图示说明了改进的三极测深原理和排列方式,该装置具有采集数据量大、激电信号强、穿透深度大、勘探精度高和效率高等优点。数据处理时剔除电磁噪声对激电数据的影响是必需的。激电测深二维反演结果表明三叠系地层百逢组砂岩、细砂岩含金矿段均有明显的中(低)阻-高极化响应特征,钻探验证深部激电(IP)异常见多金属硫化物含金矿脉,改进的三极装置测深在勘探区取得了较好地质效果。

This paper simply states geological characteristics with the microscopic disseminated type gold deposit of exploring areas, the resistivity of the rock and ore and the chargeability of electrical characteristic parameters. The chart illustrates the principle and array mode of the advanced three - pole sounding. The strongpoint of the electrode configu-ration array is that it can obtain massive collection data, strong induced polarization （IP） signal, larger penetration depth, highly surveying accuracy and highly working efficiency. It is necessary to check delayed voltage and eliminate electromagnetism noise effect IP before data process. The two-dimension sounding inversion result shows Baifeng Team sandstone and slender sandstone of the Triassic stratigraphy have the obvious characteristics of middle or low - lying resistivity and high induced polarization. The advanced three - pole array is used very well in the exploration area.