大功率激电测量在辽宁北水泉寻找隐伏矿床的应用

以电法勘探理论为基础,介绍了大功率激电法在辽宁北水泉地区多金属矿的应用。大功率激电中梯扫面测量,表明视电阻率高值区位于研究区中部到南及西部,断裂、构造蚀变带多集中在电阻率或极化率变化较大的地方,主要表现为低阻;硅化蚀变带依地质情况不同而不同,或为高阻、或为低阻。极化率异常基本以凝灰岩为中心,沿测区呈环状分布,钻孔验证结果东南部视极化率高值异常是由薄膜状黄铁矿引起,西北部视极化率高值异常由碳质物引起。对处在硅化带的低值异常处又有成矿地质条件的地段进行测深工作,指导钻孔的布署,在本区取得了良好的找矿成果。

The Application of High Power IP Method for Searching Concealed Metallic Mine in Beishuiquan, Liaoning Province

Based on electrical prospecting theory,we introduce the application of high-power IP method in Beishuiquan area polymetallic deposit,Liaoning Province.IP in the power ladder scanning measurements showed that high values of apparent resistivity in the study area is located in the central area to the south and west.Faults,structural alteration zone more concentrated in the area that resistance or susceptibility changes are significant,mainly low resistance,silicified alteration zone varies according to geological conditions,high resistance or low resistance.Polarization abnormal is tuff as the center basically,distributed in a ring along surveyed area,drilling results verify the high rate of polarization anomalies in the southeast caused by ground pyrite,the northwest as the polarization anomalies caused by the carbonaceous material.We carry out sounding for low anomaly of silicified zone and sites of metallogenic geological conditions to guide the drilling of the deployment,prospecting in the area made a good exploration results.