|Type||Journal Article - International Journal of Geosciences|
|Title||Geostatistical Correlation of Aquifer Potentials in Abia State, South-Eastern Nigeria|
In this paper, a collection of statistical correlation methods is used in the study of aquifer potentials in Abia
State of south-eastern Nigeria. The Physiology, geomorphology and hydrogeology of the area are first presented.
Sixty-six Vertical Electrical Sounding (VES) data sets are used to determine the aquifer. Demographic
studies are then carried out in 220 communities in order to determine the relationship between population
size on one hand and a unit draw-down of wells due to groundwater abstraction on the other. The relationship
between geological Formation, aquifer potentials and depth of boreholes are then calculated using
Pearson’s correlation matrix. Results show that the mean population of persons appears to be higher in
Bende-Ameki Formation (of Eocene-Oligocene age) and the late Tetiary-Early Quaternary Coastal Plain
Sands, than in the Cretaceous shale Formation of Asata Nkporo. The mean population of persons sitting on
these Formations is 31,200, 18,370 and 5400 respectively. Furthermore, it is observed that a population increase
of about 50 persons in a community in Abia State is accompanied by a unit volume (1 m3
of wells due to groundwater abstraction. It is therefore concluded that population size is positively correlated
with groundwater abstraction, aquifer potentials and geological Formation favouring aquifer in Abia State.
|»||Nigeria - Population and Housing Census 1991|