Contribution De La Gravimétrie À L’étude Structurale De La Région De Sillet-abalessa (sud Algérien): Implications Hydrogéologiques
Résumé: The aim of this thesis, we try to support the advanced techniques of gravimetric processing to the determination of the structure of the aquifers in the region of Sillet-Abalessa (southern Algeria). From the geophysical point of view the results obtained by gravimetry are essential for the interpretation of the interactions between water and rock on the one hand and to have an idea on the hydrogeological continuity of the aquifers of the region on the other hand. the course of the large rivers of the region coincides with the route of the faults mapped by geology and geophysics, these faults ensures a certain hydrogeological continuity of the productive units through the circulation in the network of faults and fractures, thus d In general, the latter acts as a temporary reservoir during the floods and the siltation of rivers. The hydrochemical assessment of the groundwater in the Abalessa region revealed that the origin of the mineralization in the waters of the region which is closely related to the volcanic background of the central Hoggar, the waters of the region are of good quality and favorable to the irrigation of Saharan cultures.
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