ON THE Dar-Zarrouk PARAMETERS AND AQUIFER HYDRAULIC CONDUCTIVITY DETERMINATION

A CASE STUDY OF ISHARA/ ODE-REMO GEOLOGICAL TRANSITION ZONE, SOUTHWESTERN NIGERIA

Abstract

Fluid transmissivity and electric transverse resistance are important parameters in groundwater exploration. Determination of these parameters provides a good knowledge of the potential of porous media, because they relate fluid flow to electric-current conduction, in terms of layer thickness, permeability and resistivity. In this study, both parameters were determined in this study from the interpretation of Vertical electrical sounding data obtained. Direct relationships between both parameters were obtained and the relationship can be used to determine the transmissivity and hydraulic conductivity of the aquifer. The relationship suggests that an
increase in both parameters indicate presence of zones of high water potential within the aquifers. In the absence of pumping test, these Dar-Zarrouk parameters can be used to determined the hydraulic conductivity of aquifer in an area and groundwater potential evaluation