Investigation of the relationship between the elevation and Aquifer thickness in G. G. S.S Barnawa

Abstract

Electrical resistivity is the method mostly used by Geophysicist in carrying out subsurface investigations. It is been widely apply in the areas of engineering works, water explorations, environmental studies and management. The method was used in the study area with the aim of investigating the relationship between elevation and Aquifer thickness. The interpretation of 10 Schlumberger, Vertical Electrical Sounding (VES) data along five (5) profiles were carried out in G.G.S.S Barnawa Kaduna, Kaduna State Nigeria (the study area). The Ohmega Resistivity Terrameter was the principle instrument used. The Schlumberger electrodes configuration was used in the data acquisition. The method consists of expanding (AB) distance between the current electrodes and potential electrodes (MN) are kept fixed. The VES curves were interpreted using IPI2Win resistivity computer inversion software. From the result of this study, the survey area is mainly dominated by three (3) to five (5) layers. The aquifer thickness of the survey area was also determined and it ranges from 5.45m to 49.23m. The results also revealed the elevation of the survey area that ranges from 578m to 593m. From the information gathered, it can be concluded that there was a negative correlation between elevation and aquifer thickness in the survey area this implies that the aquifer thickness within the study area was independent of the elevation of the area. On this matter the Researcher recommends similar researches in different locations to validate the assertion.

KEY WORDS: Aquifer thickness, elevation, correlation, Schlumberge