%0 Journal Article
%T Structural mapping of coastal plain sands using engineering geophysical technique: Lagos Nigeria case study
%A A. A. Adepelumi
%A M. O. Olorunfemi
%A D. E. Falebita
%A O.G. Bayowa
%J Natural Science
%P 2-9
%@ 2150-4105
%D 2009
%I Scientific Research Publishing
%R 10.4236/ns.2009.11002
%X An engineering geological survey using the cone penetrometer and finite element method was carried out to characterize sand-fill thick- nesses in a reclaimed area of Lagos, SW Nigeria. A previously developed finite element program was modified in order to allow for predicting the sand-fill thicknesses, and have an unders- tanding of the geomorphic shallow structures existing pre-sand-fill. The program was tested using the obtained cone penetrometer test re-sults from the Lekki-Peninsula area. The finite element predicted thicknesses show good cor-relation with the penetrometer obtained thicknesses. Six zones with thick sand-fill thick-nesses varying from 1.25 to 6.0m were identified from the isopach maps, these zones correlate with major/minor depression associated with river/stream channels and creeks. These are the main shallow geomorphic structural features present in the area pre-sand fill. The structural trends of the depressions are largely influenced by the oceanic fracture pattern.
%K Sand-Fill
%K Finite Element
%K Nigeria
%K Pene- trometer
%K Depression
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=497