GEOL107 Chapter Notes - Chapter 11: Sedimentary Rock, Vadose Zone, Capillary Fringe
28 Sep 2018
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Growing cities in arid climates are removing groundwater fast than it can be replenished. The water that lies beneath the ground surface, filling the pore space between grains in bodies of sediment and clastic sedimentary rock, and filling cracks and crevices in all types of rock. Some of the water that precipitates from the atmosphere as rain and snow infiltrates the geosphere and becomes groundwater. Rate of groundwater flow tends to decrease with depth. Because sedimentary rock pores tend to be closed by increasing amounts of cement and the weight of the overlying rock. The subsurface zone in which all rock openings are filled with water. The water level inside the well marks the upper surface of the saturated zone. Most rivers and lakes intersect the saturated zone. Groundwater also flows into mines and quarries cut below the water table. Where not all the sediment or rock openings are filled with water.
