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Abstract This work presents the applications of space-borne (optical and radar) and Ground Penetrating Radar (GPR) data in lithological discrimination and surface/near-surface structural mapping at the Central part of Cairo Suez District (CCSD).To construct a new digital updated geologic map, several image processing and transformation techniques coupled with field work and structural analysis are used. Geomorphologically, the studied terrain of the CCSD has moderate relief except at the south where G. Ataqa, Abu Terifyia, and Qattamyia and the intrabasinal ridge of G.Oweibed at the center form topographic highs.The sedimentary succession of the Middle Eocene to Quaternary rocks covers the area with many stratigraphic hiatus, intrusions, and flows of Oligocene basaltic rocks. Results of several image processing and transformation techniques which are applied on Landsat-8 Optical and thermal data can be summarized as follows: i) The FCC of 2,5,7, 4,3,2 and 6,3,2 and the band ratios of 3/1, 4/2, 1/7 and 5/2, 4/1, 6/7 are effective in the discrimination of the Oligocene clastics from the Non-Marine Miocene, Oligocene basalt, Middle Eocene, and Upper Eocene rocks. ii) The band ratios of 5/1, 6/2, 7/3 have a powerful discrimination of many rock units, iii) The PC1, PC2, and PC3 image is unique in separating clastics from non-clastics, iv) The MNF1, MNF2, and MNF3 contain a large number of eigenvalue or information and discriminate the Middle Eocene from Upper Eocene, Oligocene from Non-Marine Miocene clastics and Marine Miocene from Pliocene carbonates.The supervised classification image is considered as the final map of the rock units distribution |