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本文根据金属矿地球物理勘探中磁法和电法工作的特点,分析归纳了椭球类(包括球、圆柱、椭球柱等形体)矿体磁异常公式,引出了用类磁参数表示的矿体视电阻率异常、时间域和频率城激电异常、低频电磁法异常公式。从而较好地建立了数学模型,在一定的条件下,简化了金属矿电法异常正演计算,加深了电法异常性质和特点的认识和研究,并对文献[1]在椭球体磁场公式和激发极化异常的类磁法公式中的一些笔误作一商榷。
According to the characteristics of the magnetic and electrical methods in geophysical exploration of metal ores, the paper analyzes and summarizes the formulas of magnetic anomalies in the ore body of ellipsoid (including sphere, cylinder, ellipsoidal column, etc.) Stereological resistivity anomalies, abnormalities in the time domain and frequency of the city anomalies, low frequency electromagnetic anomaly formula. So that the mathematical model can be well established. Under certain conditions, it simplifies the anomalous forward modeling of the metal ores and electric law, deepens the understanding and research on the anomalous nature and characteristics of the electrical method, It is open to discussion about some kinds of mistakes in the magnetic-like formula to induce abnormal polarization.