EH4成像技术是以电磁原理的地球物理测深手段,该方法对地下地质结构的解析度高,有效探测深度适中,能够较为精确探测矿体的规模、产状、埋深等信息。通过对广西某矿山外围深部矿体勘探的实际应用,发现该区外围深部存在明显的地球物理异常,展示了外围具有良好的成矿前景。实践证明EH4技术在老矿山外围深部寻找隐伏矿体取得了良好效果。 EH4 imaging technology is a geophysical sounding method based on electromagnetic principle. The method has high resolution to underground geological structures and moderate effective exploration depth, and can accurately detect the size, occurrence, depth and other information of the ore body. Through the practical application of deep orebody exploration in the periphery of a mine in Guangxi Province, it is found that there are obvious geophysical anomalies in the deep periphery of this area, showing that the periphery has a good prospect of mineralization. Practice has proved EH4 technology in the outer periphery of the old mine to find a hidden ore has achieved good results.