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Journal of the Nigerian Association of Mathematical Physics

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Geophysical Study of Lithologies Attributes At Isihor Village, Edo State, Nigeria

FO Ezomo, CN Akujieze

Abstract


Geophysical study of lithologies attribute was investigated in Isihor village of Edo State, Nigeria. These attributes include depth, thickness of  lithologies or rock types beneath the sea level or earth’s surface.  Geophysical prospect of lithologies in this studied area is vital for many economic and environmental reasons for examples a large portion of the world’s fossil fuels such as oil, gas and coal are found in stratified  (layererd) rock types and much of the world’s ground water are store in
sediments or stratified rocks. This investigation actually entailed carrying out electrical resistivity survey of vertical electrical sounding (VES) employing Schlumberger array. Ten(10) VES, fairly distributed in six different stations of Isihor village was carried out. The software IPI2WIN utilizing computer iteration was used for interpretation of apparent resistivity data. The result of the electrical resistivity survey showed that the lithologies; top soil; laterite, sandy soil, sandy clay loose soil clay soil, and clean sand were intercepted at depths of (0.56-0.86)m, (1.92-13.64) m (12.48-52.78m) (12.58-25.72)m, (*20.04 -74.43)m, (1.20-4.28)m, and (80.76-115.09)m respectively below sea level. Their respective thicknesses were probably 0.56, 0.98m, 7.42m 6.42m, 6.40m, 0.64m and 5.10m. These results agreed very well with available borehole/drillers log records of the area.



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