Geoelectric Delineation of Aquifer Pattern in Crystalline Bedrock
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Description
Groundwater is ubiquitous and immensely important for human uses but there is inadequate supply
especially in the basement complex terrain as most boreholes are either abortive or can’t yield sustainable
water to wells. This research tends to delineate into the subsurface in order to understand the aquifer
pattern in Ogbagba area. A geophysical survey involving twelve vertical electrical sounding (VES) was
carried out at some selected locations in Ogbagba. Resistivity meter was used to acquire the geophysical
field data. Conventional partial curve matching and WinResist software was used for the data processing.
75% of the aquifers in the study area are confined aquifers while the remaining 25% are unconfined
aquifers. Also, three probable aquifer units were delineated where clayey sand has 75%, sandy clay
constitutes 16.7% and fractured bedrock shares the remaining 8.3%. The study revealed that insufficiency
of groundwater exploitation in the study area is due to the geologic formation of the aquifers and the depth
to which groundwater is been abstracted. If these mistakes are corrected, Ogbagba will henceforth start to
enjoy groundwater exploitation adequately
Keywords
Q Science (General), QC Physics