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众所周知,在磁异常的推断解释和正演计算中,常常需要确定磁性体的磁化强度矢量,也就是确定其磁化强度的大小、倾角和偏角.磁化强度矢量主要是由磁性体的感应磁化强度矢量及剩余磁化强度矢量决定的.当感磁大于剩磁,二者方向一致,但磁性均不强,而且不考虑退磁影响时,磁性体磁化强度的大小将为感磁与剩磁之和,其方向也就是地磁场的方向.但在实际工作中常遇到强磁性的地质体,其剩磁大于感磁,方向不一致,此时磁性体的磁化强度矢量主要取决于剩磁矢量.要
It is well known that it is often necessary to determine the magnetization vector of a magnetic body, that is, to determine the magnitude, tilt angle and declination of the magnetization in the interpretation and forward calculation of the magnetic anomaly.The magnetization vector is mainly determined by the magnetization induced vector And the remanent magnetization vector.When the magnetic induction is greater than the remanence, both in the same direction, but the magnetic are not strong, and regardless of the effect of demagnetization, the magnitude of the magnetization of the magnetic body will be the sum of magnetic induction and remanence, which Direction is the direction of the geomagnetic field, but in practical work often encountered ferromagnetic geologic bodies, the remanence is greater than the sense of magnetism, the direction of inconsistency, then the magnetization of the magnetic body depends mainly on the magnetization vector.