Two dimensional electrical imaging of quaternary aquifer at Wadi Muraykhat and Wadi Sa'a, Al Ain area, UAE

Wadi Muraykhat and Wadi Sa'a are of the main tributaries crossing east of Al Jaww Plain, Al Ain area, UAE. These wadies originate from the Oman Mountains range and form the catchment and feeding area of the water resources. From the hydrogeological point of view, subsurface investigation of these wadis is very important for better understanding of the aquifer system, water flow, water quality and management of water pumping. Two-dimensional (2-D) electrical tomography survey has been implemented. Eleven (2-D) profiles along Wadi Muraykhat and Wadi Sa'a guided with available borehole data have been utilized to contribute to the Quaternary aquifer in this study area. 2-D resistivity tomograms of the eleven profiles indicate remarkably the different hydrostratigraphic units of Quaternary aquifer along the eastern margin of Al Jaww plain. Erosional unconformities at the base of the Quaternary alluvium are traced along some of the (2-D) profiles. These unconformities represent the paleochannels in the bed rock that were formed in the geological past by the ancient wadies.