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电法勘探中的充电法用于导电的矿化带被揭露之后.电极直接安置在矿化带中,而在地面上或钻孔中测量它的电位场。电位场的分布反映了该矿化带的大小、形状和延伸方向。文献中记载了不少关于金属矿勘探中成功地应用充电法的实例。电位场的解释仍以定性解释为主,而且还是基于这样的假定——在均匀的导体上充电,其周围也是均匀电阻率的岩石。我们针对该方法做了极少量的工作,以图获得一些对电位场资料的解释能够有所帮助的理论和实验的数据。这里介绍一种按照模拟比例的模型试验及数值计算模型的成果来解释充电法资料的途径。
The charging method used in electrical prospecting is used to expose the conductive mineralized zone, the electrode is placed directly in the mineralized zone and its potential field is measured on the ground or in the borehole. The distribution of the potential field reflects the size, shape and direction of the mineralized zone. The literature records many examples of the successful application of charging methods in metal exploration. The interpretation of the potential field is still dominated by qualitative interpretation and is based on the assumption that a uniform conductor is charged around a rock of uniform resistivity. We did a very small amount of work on this method to get some theoretical and experimental data that could help explain the potential field data. Here is a description of a method based on analog scale model test and numerical results of the model to explain the method of charging information.