Kinetic Energy and Transportation History of Sediments in Ogunniyi, Western Nigeria.

Abstract

The analysis of grain-size sediments was carried out to determine the grading of textural parameters which result in the description of the energy environment, that of deposition and information on sediment transport. A German standard sieve set of mesh with shaker was used for the analysis. 12 sets of sediment sizes resulting in 84 samples from seven locations. The results of grain size analysis indicates that almost all the sediments are poorly sorted which is due to short distance of transportation of sediment from the source (only locations OG12 and OG18 show moderately well sorted sediment), fine to coarse skewed with dominance of leptokurtic. Positively skewed sediment represents finely skewed and describes the kinetic energy of the sediment as low and therefore, far from the source. Negatively skewed considers as coarse skewed with high energy of the environment or medium of transportation because it is greater than that experienced where fine particles are deposited though the distance of travel is closer to its source. Fine materials presence may encourage dredging for sand in the appropriate locations; coarser materials subjected to cementation could contain some minerals in them and exploration for these targets may be carried out over a period of time.