Jatau, B.S.Achie, Alheri2023-12-142023-12-142009-06-23Agelaga. A.G.,Udensi,E.E., Adetona.A.A.A. (2004). Seismic Refraction Study of the Influence of Basement Topography on Existing Run-Off Channel at Television Village Campus of Kaduna Polytechnic, Kaduna Nigeria. Pp 195-199. Ajibade, A. C. and Wright, T.B. (1988). Structural Relationship in Schist Belts of Northwestern Nigeria. In Precambrian geology of Nigeria, a Publication of geological Survey of Nigeria Pp 195- 199. Dobrin, M. B. (1976). Introduction to Geophysical Prospecting. McGraw Hill, New York (3rd Edition). Geological Map of Study Area (1965- 1988).Extracted and Modified After Geological Survey of Nigeria, Kaduna. Gabako D.K. (2005). Geological and geophysical considerations in the planning of a New Dam .Case Study of Proposed New Galma Dam in Kubau L.G.A of Kaduna. State. Spectrum Vol.10 Nos 1 & 2, pp.110-116.https://keffi.nsuk.edu.ng/handle/20.500.14448/5678Seismic refraction method of geophysical survey was carried out in parts of Kaduna South Industrial Area, Kaduna North-West Nigeria. Nine shooting points were taken at various points of interest using an ABEM instrument (MK 6 Seismograph) outside cultural interferences. The readings were taken at about 1 to 2km apart. Twelve channel geophones were laid from the shot point at 5m separations along the profile to pick up the seismic wave. Quantitative data interpretation of the travel-time was done using computer processing package. The no of layers, velocities and the thicknesses of unconsolidated material above the bedrock (Depth to bedrock) in the area of study were determined. Three to four layers were encountered, consisting of the Topsoil (Dark brown laterite, lateritic clay), (silty clay, orange brown laterite to kaolinitic clay and saturated sand), (Biotite and granite gneiss) and fractured/weathered basement rock. The average depth to the basement was found to be about 13m, the shallowest and deepest depth to the basement was found to be about 10m and 16m respectively. The qualitative interpretations in terms of layer velocities, thicknesses and histogram/frequencies plots were deduced and drawn. Seismic sections were compared with existing geology which showed a good degree of correlation. The second layer from the study area being mostly clay (1020-1630) m/s could cause differential settlement in foundations hence the need to remove it prior to foundation is of paramount importance.enArticle