高密度激发极化法测量在峪耳崖金矿区的应用

运用美国生产的高密度电法仪器对峪耳崖金矿区16~28线进行了测量。该仪器可同时测得视电阻率和视充电率2种数据,并可自动成图和地形改正。通过高密度电法工作圈定了地表较浅部的矿化异常区,除主要矿化异常赋存于岩体接触带外,在灰岩中也发现高极化异常区,表明在灰岩地层内也存在金属硫化物矿化现象,这为下一步找矿工作提供了新的思路和方向。通过钻探结果确定该矿区异常区有2种类型,即高阻高充电异常和低阻高充电异常,主要分布在岩性的接触带附近,尤其是内接触带。

THE APPLICATION OF HIGH DENSITY ELECTRICAL SURVEY TO THE PROSPECTING OF THE YU' ERYA GOLD ORE DISTRICT

High-density electrical survey was conducted between No.16 line and 28 line in the Yu'erya gold deposit.As a result,resistivity and chargeability were obtained.Automatic plotting and topographic amendment could also be performed.Mineralization anomalies were delineated in the shallow area.Major mineralization anomalies are developed in the contact zone,whereas high polarization anomalies were found in the limestone.Some sulfide mineralizations occur in the limestone.These results provide new idea and new direction for further exploration in future.There exist two types of anomaly: one is high resistivity and high chargeability anomaly,and the other is low resisitivity and high chargeability anomaly.These anomalies are mainly distributed near the contact zone,especially in the inner contact zone.