Inversion and interpretation of magnetic anomalies when significant remanence is present: Examples from mining areas in China.
Liu S., Fedi M., Hu X.
Remanent magnetization is one of the important physical property of rocks and ores magnetism, which complicates the inversion and interpretation of magnetic anomaly. We recover the distributions of the magnetization vector intensity inverting the transformed amplitude anomalies, which are only weakly dependent on the magnetization direction. The direction of the total magnetization vector is then obtained by inversion of the total field anomalies and the intensity and direction of the remanent magnetization vector are separated from the total magnetization vector, based on $a priori$ information on the Koenigsberger ratio. Finally, we apply the method to investigate the target resources of the mining areas in China.