
Detailed geological and geochemical investigations, which have done in the studied Abu Khalag area showed that the area constitutes a part of Arabian-Nubian Shield (ANS). Lithogeochemical data derived from rock samples collected from the study area, were plotted on AFM diagram, and have shown calc-alkaline affinity, that confirms the subduction-related geological environment for these rock assemblages. Rock assemblages in Abu Khalag area, for the first time, were mapped in detail on scale of 1:350000. Rocks of the area are composed of gneisses, schists, quartzites, calc-silicates rocks, marbles, and amphibolites, all of the above-mentioned units were affected later with retrogressive regional metamorphism to greenschist facies.