Abstract
In this paper, we have analyzed the aeromagnetic data using the 2D Horizontal Gradient (HG) technique combined with the 2D Continuous Wavelet Transform (CWT). The objective is to delineate structural boundaries using the spatial distribution of maxima of modulus of the CWT of the HG. Application on synthetic model shows the robustness of this technique. The proposed idea has been applied at geomagnetic data of In Ouzzal area; it is located in the western of Hoggar (Algeria). Obtained results are compared with geological map and Directional Continuous Wavelet Transform (DCWT) solustions. It shows that with this approach we are able to resolve the problem of noise effect on the DCWT solutions. Our method shows a good precision where geological contacts are known.
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