Browsing by Author "Ige, O.O."

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    Geophysical, Geotechnical and Groundwater Quality Assessment of a Proposed Sanitary Landfill at Gosa Village, Abuja, Nigeria
    (Journal of Mining and Geology, 2017-08-27) Ige, O.O.; Ojulari, Bashiru Alaba
    Geophysical, geotechnical and water quality investigations of Gosa dumpsite in Abuja were carried out with a view to investigating the feasibility of upgrading it to a modern sanitary landfill. Nineteen Vertical Electrical Soundings (VES) were carried out for geoelectric characterization of the site. Also, eight soil samples (two undisturbed samples and six disturbed samples) were obtained for geotechnical analysis. Inversion of the VES data indicated 3 to 4 geoelectric layers namely; topsoil, laterite, weathered basement and fresh basement. Depth to basement varied from 4.1 m to 27.2 m. Geotechnically, the soil samples from the study area were classified as well graded clayey-sand to silty-sand. Plasticity of the clay fraction of the samples varied from low to intermediate. Maximum activity of clay (Ac) of 0.6 showed presence of inactive clay. Permeability test showed that the permeability of the sample ranges -7-6 between 5.1 x 10 m/s-1.1 x 10 m/s which makes the groundwater prone to leachate pollution.