Earth Sciences 1022A/B Chapter Notes - Chapter 9: Glacial Striation, Specific Storage, Hot Spring
15 Nov 2018
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Document Summary
It is technically a renewable resource but can be depleted faster than it is replenished. 50% of the human population use groundwater as a source of drinking water. Contained in the pore spaces of the earth"s subsurface. Percentage of the total volume of void space. Void space is opening or void between sediment particles, or fractures in bedrock. Pore space in sediment is controlled by: Grain shape (irregular grain interlock, decrease space) Degree of sorting (well sorted means grains are equal sizes, allows for more space) Amount of cement (which infills pore space) Measure of the material that can transmit a fluid. Groundwater seepage is the major source that feed streams and the majority of rainfall becomes groundwater. Water table (measured by the depth of water in dug or drilled water wells) Control variable and seasonal flow of streams in rivers and accounts for fluctuation in water level of lates.
