Aeromagnetic data was analyzed to reveal the subsurface deep-seated major faults whereas major surface faults were traced from the published geological maps of Egypt. The analysis and interpretation of these data, in combination with surface faults, revealed that the main prevailing structural trends run in an E-W, NW-SE and NE-SW directions for deep and surface faults, respectively. It was inferred that these faults are of regional aspect and extend from the deep subsurface to the shallow surface. The continuity between the deep-seated and the surface faults may forecast a possible vertical connection between the deep Nubian Sandstone Aquifer System (NSAS) and the Quaternary Aquifer System (QAS).
This suggestion is supported by previously published isotopic analyses in the region.