Interpretation of marine magnetic anomalies. Part II. Analysis of the new method and algorithm based on the least squares method

Abstract

In this work, the problem of interpreting linear marine magnetic anomalies in the context of the spreading model is considered. Based on the least squares method, a new algorithm for determining the position of direct and reverse polarity blocks is proposed. The global minimum of the residual is found by a combination of the multistart and Monte Carlo methods. Using an example of a field of three blocks perturbed by a normal noise, it is shown that the method yields an error close to the minimum possible. Using a model constructed by the inversion scale, it is revealed that the proposed algorithm allows one to find positions of block boundaries of the field without noise with a higher accuracy determined in fact by the computation time.