1Akpaneno,
A. F., 2Dogo Nehemiah, 3Afuwai, G. Cyril
1, 2, 3Department of Physics,
Federal University,
Dustin-ma, katsina State, Nigeria
Email:chidinmaaniefiokakpan@gmail.com
ABSTRACT
A Geophysical survey was
carried out to investigate groundwater potential at the permanent site in
female hostel of Federal University Dustin-ma, Katsina State Nigeria. The aim
of the investigation is to explore the groundwater potential of the area with
the objectives of determining the depth to basement, the depth and thickness of
aquifer, the thickness of the weathered basement, the variation in resistivity
of the overburden and for other, properties such as sediments at which portable
groundwater can be obtained. The geo-electrical methods used in the survey were
the Vertical Electrical Sounding (VES) and Horizontal profiling. Five (5) VES
were conducted using the Schlumberger configuration and Horizontal spread
covering the entire area. The Horizontal Profiling data was carried out to
obtain the lateral variation in resistivity. Based on the interpretation of the
profiling data, areas with low resistivity were sounded along the traverse. The
VES data were interpreted using geophysical software IPI2Win which showed that
the area is composed of four layers namely; topsoil, weathered basement,
fractured basement and fresh basement. Based on the interpretation of the VES
points the depth to basement varies from 10.2 to 63.1m, the thickness of the
aquifer varies from 2.34 to 62.2 m and it depths varies from 10.2 to 62.2 m,
the resistivity of the overburden (topsoil) varies from 31.3 to 977 Ωm, the thickness of the weathered basement varies from
5.21 to 36.7 m. Contour maps were plotted using the SURFER 10 computer software
showing all
the topsoil resistivity, aquifer thickness and depth to basement at each VES
point. Based on all the correlated data
and information the following points VES 02, VES 04 and VES 05 are highly
recommended for suitable groundwater establishment.
Keywords: Resistivity, Borehole, Vertical Electrical Sounding, Groundwater
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