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本文采用两个函数的褶积式以表达一局部地区内,由于磁化强度与密度分布不均匀所引起的重磁异常,从这些表达式可清楚地显示出重磁异常完全由磁化强度的散度和密度的一阶垂直导数所确定。因此,其分析是基于把一个物体看作为均匀磁化强度或为均匀密度的,在物体边界岩石物理性质的突变系造成磁异常或重力异常的原因。这些物理性质足以用来计算出重磁异常。文中列举一例,使用上述算法计算一个不规则地形受磁化所引起的异常以说明该算法的作用。
In this paper, the convolution of two functions is used to express the gravimetric anomaly in a local area due to the uneven distribution of magnetization and density. From these expressions, it can be clearly shown that the gravimetric anomaly is entirely dominated by the divergence of magnetization And first order vertical derivative of density. Therefore, its analysis is based on the idea of treating an object as a homogeneous magnetization or a uniform density, and the sudden change in the physical properties of the rock at the boundary of the object causes the cause of magnetic anomaly or gravity anomaly. These physical properties are sufficient to calculate the gravity anomaly. An example is given to illustrate the effect of the algorithm by using the above algorithm to calculate the anomalies caused by magnetization of an irregular topography.