Ground Water Exploration Using Resistivity Method In Erunmu And Its Environs, South Western Nigeria.

ABSTRACT

Geophysical survey involving electrical resistivity method has been carried out in Erunmu, Oyo

state south-western Nigeria with a view to delineate the geoelectric characteristics of the basement complex and evaluate its ground water potential in the area. A total of 7

vertical electrical sounding stations were established within the site along 7 transverses. The Schlumberger configuration was used for the data acquisition. The half current electrode (AB/2) used range from 1.0 to 75m. The quantitative interpretation of the VES curve involved the use of partial curve matching and the I-D computer iteration technique. The depth sounding interpretation results were used to generate geo-electric sections from which the aquifer was

delineated.

The geoelectric section drawn from the result of the interpretation reveals five (5) subsurface layer which comprises of the top soil, latentic sand, partially weathered, weathered and fractured basement. The weathered and fractured constituted the aquoferous zone in all stations.

Hence, from this project work it is recommended that boreholes can be sited in high conductivity

zone in VES 1,2,3, and 4 as they contain probable equifers. The depth of any borehole should be located between 15m and 30m to take advantage of the basement fractures.

TABLE OF CONTENT

INTRODUCTION

CHAPTER TWO 

LITERATURE REVIEW

CHAPTER THREE 

RESEARCH METHODOLOGY

CHAPTER FOUR

CHAPTER FIVE 

SUMMARY OF FINDINGS AND RECOMMENDATIONS