New Page 1 Chapter 3 Groundwater Geology 1. Lithology, Stratigraphy, and Structure.
Faults create secondary porosity, affect the continuity of aquifer.
Faults may be an aquiduct or a barrier depending on the nature of the faults. Coarse gravel in channel. Sand and fine gravel for natural levee along the bank. Silt and clay deposits on floodplain Sand in point bar. For braided rivers, channel shift results bedded sand and gravel.