%0 Conference Proceedings
%9 ACTI : Communications avec actes dans un congrès international
%A Niang, M.F.K.
%A Diouf, Same
%T Méthode électrique 2D appliquée à la recherche des aquifères du granite de Saraya (Sénégal)
%S Géophysique des sols et des formations superficielles : abstracts et résumés étendus
%C Paris
%D 1997
%E Albouy, Yves
%E Montoroi, Jean-Pierre
%E Tabbagh, A.
%E Zerbib, Nicole
%L fdi:010011225
%G FRE
%I ORSTOM
%K GEOPHYSIQUE ; SONDAGE ELECTRIQUE ; GRANITE ; AQUIFERE ; CHIMIE DE L'EAU
%K SENEGAL
%K SARAYA REGION
%P 59-63 multigr.
%U https://www.documentation.ird.fr/hor/fdi:010011225
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_7/geofcan/010011225.pdf
%W Horizon (IRD)
%X Groundwater occurrence is generally restricted to linear structural features for the birimian granite of eastern Senegal. Some lineaments, obtained from satellite Spot imagery, were selected with regard to drillhole flowrates. Geoelectric survey, involving multi-electrode ABEM Lund Imaging System, is carried out across lineaments. Apparent resistivity of vertical pseudo-sections shows low resistivity channels deeper than the weathered layer. 2-D inversion of resistivity data suggests that the higher rate of fracturation from 20 to 60 meters in depth can be interpreted as a potential aquifer. Hydrogeologic parameters are deduced for any case by relationships between resistivity and hydrochemical characteristics of wells water and boring holes water. (Résumé d'auteur)
%B Géophysique des Sols et des Formations Superficielles : Colloque GEOFCAN
%8 1997/09/11-12
%$ 066GPHGEN