弱激电异常在寻找隐伏铅多金属矿的应用r——以青海都兰县哈茨谱地区为例

摘要

Geological structures of Pb polymetallic deposit in Dulan county of Qinghai province have been introduced in this paper. Application of high power IP of central gradient array and sounding method in this area has been in-troduced as well. Through analysis and research on IP anomaly characteristics, combining with the condition of geo-logical engineering verification, it is regarded that apparent polarizability value is less than 2. 5%. When it is high-er than the lower limit, it can be classified as weak anomaly apparent polarizability anomaly. It is an effective pros-pecting mark for looking for hidden Pb polymetallic deposit in this area.%该文主要介绍了青海省都兰县哈茨谱地区铅多金属矿的地质构造,以及大功率激电中梯与测深方法在该区的应用. 通过该区激电异常特征与地质工程验证情况的分析与研究,认为视极化率值低于2. 5%,高于异常下限即可划为弱视极化率异常,它是该区内寻找隐伏铅多金属矿的一个有效的找矿标志.