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在双频激电法中,异常解释是工作的重点。在以往的工作中,一般直接采用视幅频率和视电阻率进行地质推断解释,对异常有时难以做出准确的解释。视激电率综合了视幅频率和视电阻率两种评价参数的信息,可以很好地压制与电子导体不相关的激电异常,为异常解释工作带来准确性。将视激电率应用于尼日利亚某矿区的激电异常评价,提取了剖面数据的二次信息,很好地区分了矿致与非矿致异常,圈定了几处异常区域。结果表明,视激电率对异常的定性及定量解释有很好的作用。
In dual-frequency excitations, abnormal interpretation is the focus of work. In the past work, the geophysical inference was generally explained directly by using the frequency of the viewership and the apparent resistivity, and it is sometimes difficult to make an accurate explanation of the anomaly. The apparent rate of electricity combines the information of both the viewing frequency and the apparent resistivity, which can suppress the abnormalities of the anomalies unrelated to the electronic conductors and bring about the accuracy of the anomalous interpretation. The application of the apparent rate of electric shock to the evaluation of the anomalies in a Nigerian mining area extracted the secondary information of the profile data and well distinguished the ore-induced and non-ore-induced anomalies and delineated several anomalous areas. The results show that the apparent rate of shock on the abnormal qualitative and quantitative interpretation of a good role.