物探方法在深边部找矿中的有效性探讨——以浏阳市七宝山铜锌矿区为例

A tentative discussion on the effectiveness of geophysical prospecting methods for the deep periphery: A case study of the Qibaoshan copper-zinc deposit in Liuyang City,Hunan Province

在湖南七宝山铜多金属矿开展了物探工作。从方法的有效性及解决问题的需要着手,介绍了选择磁法、充电法、瞬变电磁法开展综合物探方法试验的原因,重点分析了不同方法采集的地球物理信息在地质认知上的特点、与成矿空间及矿体的联系,以及在找矿指示上的有效性;提出了以深边部为空间,以热液活动规律、构造带、接触带为目标,以面上展开、多空间重点突破为原则开展综合物探工作的思路。

The importance of carrying out geophysical prospecting work in the old mines is discussed in this paper. From the effectiveness and the capability for problem-solving,the reasons for carrying out magnetic method,charge method,transient electromagnetic method of integrated geophysical methods test were analyzed in this paper. The characteristics of the collection of the geophysical information in the cognition of geology by using different methods,the relationship between mineralization space and orebody,and the validity of prospecting were discussed in detail. The using of the principle of integrated geophysical work was proposed,in which the deep edge serves as the space,and the hydrothermal activity patterns,tectonic zone and contact zone serve as the object,thus expanding the surface and making key breakthrough.