Laboratoire de Géologie, Ressources Minérales et Energétique, UFR Sciences de la Terre et des Ressources Minières (STRM), Université Félix Houphouët Boigny, Abidjan, Côte d’Ivoire
This work was carried out in order to fill the drinking water deficit of rural populations in the Department of Bouna, a locality located in the North-East of Côte d’Ivoire. The method used is that of electrical resistivity (electrical profiling and vertical surveys) which is based on the measurement of electrical resistivity contrasts of crystallophyllian formations using a Sycal Pro resistivimeter. The results identified conductive corridors within the crystallophyllian basement rocks, corresponding to fractures that are preferentially oriented N-S, NE-SW and NW-SE. The electrical drillings carried out in the right of these conductors allowed the identification of three terrains made up of a superficial cover, a conductive complex and a basement within which potential aquifers are individualised. These results, coupled with the geological data, made it possible to propose ten hydraulic drilling locations. Five control boreholes were drilled in each village, with an average flow rate of 2.25 m3/h, thus making it possible to overcome the drinking water deficit in the five localities.
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