... rock types in the area: unconsolidated sands and gravels; sandstones; limestones; and basaltic lava flows Of course it is possible to quote examples of sandstone, limestone, and basalt aquitards, ... Figure 4. 10, and then answer questions and Figure 4. 10 Faults can act as hydraulic barriers or conducts What you think the fault shown in Figure 4. 10 act as: a Barrier b Conduit 25 Is the groundwater ... setting Figures 4. 2, 4. 3 illustrate the stratigraphy and the structure of the West Bank Figure 4. 2 Lithological and Stratigraphical Section of the West Bank, Palestine Figure 4. 3 Major structure...