Review of Electrical and Gravity Methods of Near Surface Exploration for Groundwater.

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dc.contributor.authorRaji, Wasiu O
dc.date.accessioned2023-05-18T08:05:38Z
dc.date.available2023-05-18T08:05:38Z
dc.date.issued2014
dc.description.abstractABSTRACT: The theory and practice of electrical and gravity methods of geophysics for groundwater exploration was reviewed with illustrations and data examples. With the goal of reducing cases of borehole/water-well failure attributed to the lack of the knowledge of the methods of geophysics for groundwater exploration and development, the paper reviews the basic concepts, field procedures for data acquisition, data processing, and interpretation as applied to the subject matter. Given a case study of groundwater exploration in University of Ilorin Campus, the three important techniques of electrical method of groundwater exploration are explained and illustrated using field data obtained in a previous study. Interpretation of resistivity data shows that an area measuring low resistivity (high conductivity), having thick pile of unconsolidated rock, and underlain by fracture crystalline is a ‘bright spot’ for citing borehole for groundwater abstraction in a basement complex area. Further to this, gravity method of groundwater exploration was discussed with field data from Wokbedilo community in Ethopia. Bouguer and reduced gravity anomaly results were presented as maps and contours to demonstrate how gravity data can be inverted to map groundwater aquifers and subsurface geological structures during groundwater exploration.en_US
dc.identifier.citationRaji, W. O. (2014): Review of Electrical and Gravity Methods of Near Surface Exploration for Groundwater. Nigerian Journal of Technological Developemnt, Vol. 11(2), 31-38,en_US
dc.identifier.urihttps://uilspace.unilorin.edu.ng/handle/20.500.12484/10410
dc.language.isoenen_US
dc.publisherNigerian Journal of Technological Developmenten_US
dc.subjectGroundwateren_US
dc.subjectgravity methoden_US
dc.subjectElectrical methoden_US
dc.subjectAquifersen_US
dc.subjectCrystalline rocksen_US
dc.titleReview of Electrical and Gravity Methods of Near Surface Exploration for Groundwater.en_US
dc.typeArticleen_US

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