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This study was carried out in Wadi Nisah to the south- west of Riyadh, Saudi Arabia, at latitude of 24° 14′ 28 N and longitude of 46° 29′ 59 E. The main purpose of this study is to investigate the depth of the shallow groundwater aquifer and the geological structures that could affect the ground water bearing layer in the area. For this purpose, the high-resolution seismic reflection technique was performed along Six 2D seismic lines and geophone spacing of one meter. The constructed seismic sections revealed that the depth of the water bearing formation lies in the range of 100 m to about 240 m and normal faulting affect the surface of this formation. The interpreted water-bearing formation is correlated with Biyadh Formation as confirmed by the drilled near water wells. The output of this research proved that the high resolution seismic reflection technique can be an effective method for determining water bearing layer depth in such arid area.
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