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oa The experiences with anisotropic averaging transformation of gravity and magnetic fields (on the example of the southeast part of Ukrainian Carpathians)
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Geoinformatics: Theoretical and Applied Aspects 2020, May 2020, Volume 2020, p.1 - 5
Abstract
The prospects for finding new oil and gas deposits in the Carpathian region largely depend on the possibility of clarifying and detailing the fronts of tectonic zones and deep faults, as well as thrusts and linear complications of the sedimentary cover, the position of which depends on the depth of the slice. These extended linear structures in gravity and magnetic fields are displayed by substantially elongated anomalies, chains of small local anomalies, contours of a sharp change in morphology of field or gradient bands. Isolation and tracking of anomalies that are hidden in a complex regional background or obscured by other factors are carry out with transformations. The probable geological content and estimated depth of the sources of localized groups of anomalies are determined by the frequency and relative depth characteristics of the transformations. The paper proposes variants of combined isotropic and anisotropic transformations of averaging, which, according to their characteristics, are intended to detect local and substantially elongated anomalies of a certain direction, as well as the approximate depth of their sources, in gravity and magnetic fields. Examples of experimental application of these combined transformations are also given.
