ABSTRACT
Talwani’s method An algorithm concerning analyses of magnetic anomaly and gravity anomaly proposed by M. Talwani (1965). For instance, the magnetic anomaly produced by a three-dimensional magnetic substance, such as a seamount, can be calculated, approximating the configuration of the substance by a stack of polygonal thin plates with homogeneous magnetic susceptibility. Similarly, the free air anomaly produced by a two-dimensional substance with a density contrast can be calculated, making an approximation for a crosssection of the substance by a polygon.
