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Marsa Sha'ab area is occupied by Pan-African rocks, Nubian sandstones of Cretaceous age and Tertiary basalts. The Pan-African rocks are represented by gneisses and migmatites, metavolcanic rocks (the chief host rocks of gold mineralization), gabbro-diorite rocks, granodiorites, unmetamorphosed volcanics and biotite granites. The Precambrian rocks are cut by acidic and basic dykes as well as Tertiary basalts. Two sinistral shear zones trending NW-SE dissected the metavolcanic rocks. This shear zone is recognized on landsat TM image as a prominent lineament feature. The metavolcanic rocks along the shear zone are cataclased and highly altered. Discontinuous quartz veins associated with alteration zones are present in the shear zone. Gold mineralization is detected in the alteration zone and the discontinous quartz veins. The gold content reaches up to 1.5 g/t in the alteration zone and up to 10 g/t in the quartz veins. The associated elements are Cu, Pb, and Zn.