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Ayolabi, Elijah A.
- Geoelectric Evaluation of Groundwater Potential: a Case Study of Alagbaka Primary School, Akure, Southwest Nigeria
Abstract Views :215 |
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Authors
Affiliations
1 Department of Physics, University of Lagos, Lagos, NG
1 Department of Physics, University of Lagos, Lagos, NG
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 66, No 4 (2005), Pagination: 491-495Abstract
Vertical electrical sounding consisting of three Wenner array and thirteen schlumberger array has been carried out at the premises of Alagbaka primary school, Ahure Southwest Nigeria. The aquiferous unit in the area is composed of weathered and fractured rocks whose resistivity ranges from 26 to 366 Ωm and thickness of 2 4 to 29 3 m. The isopach shows that the overburden thickens towards the east and is thinnest towards the south. The geological map derived from the coefficient of anisotropy of the underlying rocks shows this the Eastern end undelain by migmatities have coefficient of anisotropy ranging between 1 5 and 2 5 while the southwest, west and northwest side is underlain by chanockites of high (3 - 7 4) coefficient of anisotropy. The eartern end offers a good prospect for groundwater exploration.Keywords
Groundwater, Geoelectical Study, Anisotropy, Akure, Southwest Nigeria.- Geoelectric Evaluation of Olushosun Landfill Site Southwest Nigeria and its Implications on Groundwater
Abstract Views :234 |
PDF Views:2
Authors
Affiliations
1 Department of Physics, University of Lagos, Lagos, NG
1 Department of Physics, University of Lagos, Lagos, NG
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 66, No 3 (2005), Pagination: 318-322Abstract
Geoelectric resistivity technique of geophysical investigation have been used to evaluate the effect of leachate generated from Olushosun landfill on the groundwater in the area. The result shows that the first aquifer has been greatly polluted by the leachate generated from the decomposed heap of refuse materials at the landfill site. A total depth of up to 73 m has been delineated as polluted area with resistivity ranging from 16 to 361 Ωm as compared to resistivity values ranging between 2167-3714 Ωm for the unpolluted area. The results of the evaluation of the protective capacity of the overburden material within the unpolluted zone shows that the overburden material has a weak protective capacity and this may have largely been responsible for the high level of pollution observed in this area.Keywords
Leachate, Pollution, Landfill, Geoelectric Study, Southwest Nigeria.- Geophysical and Hydrochemical Assessment of Groundwater Pollution Due to a Dumpsite in Lagos State, Nigeria
Abstract Views :195 |
PDF Views:2
Authors
Affiliations
1 Geophysics Program, Department of Physics, University of Lagos, Lagos, NG
1 Geophysics Program, Department of Physics, University of Lagos, Lagos, NG