Fig. 2From: Rock-water interaction processes based on geochemical modeling and remote sensing applications in hyper-arid environment: cases from the southeastern region of EgyptThree-dimensional (3D) map showing the main landforms units of the study area (SRTM-1 overlaid by LANDSAT8). a and b are showing two of the typical alluvial fans existing in the study area. c is showing the sedimentary blocks which consists of Nubian sandstoneBack to article page