Fig. 4
(modified after ElArabi et al. [30])
a The geological setting of the Giza plateau, where the pyramids are built (modified after Yehia [12]). b A cross section using the ERT data shows how the groundwater elevation changes from the Sphinx to Menkaure Pyramid. It indicates an increase in groundwater elevation from west to east) (modified after Sharafeldin et al. [17]). c Groundwater aquifers affecting the Giza Plateau