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CONTRIBUTION DES MESURES DE L'ANISOTROPIE ÉLECTRIQUE À LA RECHERCHE DES AQUIFÈRES DE FRACTURE EN MILIEU CRISTALLIN AU BÉNIN 1
Author(s) -
DARBOUXAFOUDA R.,
LOUIS P.
Publication year - 1989
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.1989.tb01823.x
Subject(s) - geology , electrical resistivity and conductivity , anisotropy , hydrogeology , igneous petrology , mineralogy , telmatology , basement , economic geology , metamorphic petrology , gemology , fracture (geology) , geomorphology , engineering geology , geotechnical engineering , physics , optics , seismology , archaeology , geography , volcanism , tectonics , quantum mechanics
A bstract A particular methodology adapted to crystalline formations with a thin weathered zone was developed for a village hydrological project, in Benin. A combination of electrical profiles, Schlumberger and square arrays, was able to locate the most fractured zones in the basement. We present some results obtained from theoretical models as well as from field data. The suggested methodology uses both measurements of resistivity and anisotropy. Strong anisotropy and low resistivity indicate the most productive hydrogeological areas.