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实际工作中,一种物探方法往往难以确定异常的物质成因,而达不到更确切的应用效果。单一的物探方法虽各有所长,但趋于片面。多种物探方法的综合应用,既相互印证,又互相补充,提高了推断准确率和可信度。本文利用可控源音频大地电磁法在成矿有利部位探查到了低阻目标体,并划分出了岩性;但工区地质构造、物质成分复杂,难以确定低阻异常成因,故配合使用激电测深方法,用极化率参数以辨别低阻异常的物质成因。另外,激电测深电阻率剖面于可控源电阻率剖面两者相互印证,两者在反映高、低阻体空间位置及基本形态上均基本吻合。通过两种方法的综合对比分析,为钻探工作提供了较准确可信的信息,同时也相互印证了方法的有效性
In practice, a geophysical method is often difficult to determine the causes of abnormal material, and can not achieve a more accurate application effect. Although a single geophysical methods have their own advantages, but tend to be one-sided. The comprehensive application of a variety of geophysical methods not only confirms each other but also complements each other, improving the accuracy and credibility of inference. In this paper, the controllable source audio-frequency magnetotelluric method is used to explore the low-resistivity target in the favorable metallogenic parts and to delineate the lithology. However, due to the complexity of geological structure and material composition in the work area, it is difficult to determine the cause of low- Deep method, using the polarizability parameter to identify the cause of low resistance anomaly material. In addition, the resistivity profile of the resistivity source confirms each other with the cross section of the controllable source resistivity. Both of them reflect the positions of the high-resistivity and low-resistivity bodies and their basic morphologies. The comprehensive comparative analysis of the two methods provides more accurate and credible information for the drilling work and at the same time confirms the validity of the method