Journal of Conference Abstracts

Harmonic Analysis in Geophysical Anomalies Separation

Gheorghe Gardu (gardu@ulise.cs.pub.ro)

Magheru, Nr. 34-36, ScA, Ap.2, Sect. 1, Bucuresti, 70159, Romania

The aim of this study is the problem of separation of magnetic and gravimetric sources. For this reason harmonic analysis is used. So, the measured anomalies are developed in a series of main components, and so on until it represent the actual sources and only them. This is so because there is a correspondance between geological structures of the crust and the analytical structure of these functions. Non-harmonic complex functions represent uncomformable geological structures, and the harmonic ones represents rumpled structures. Non-harmonic complex functions are used by analytical expresions of the variation of the anomalies along several profiles in view to find the wave-lengths of non-harmonic components using the least squares method. Harmonic complex functions are used on the basis of development in Fourier series and thus a large number of components is obtained. So, a discrete amplitude spectrum is obtained.