Unformatted text preview: why. Cementation of sediment grains decreases porosity and permeability. This is because the process of cementation is taking the preexisting pores and filling them with new material causing the porosity and permeability to decrease. (b) Under ideal conditions and in general, can you get more or less water from an aquifer of sandstone compared to an aquifer of loose sand? You would get less water from an aquifer of sandstone compared to an aquifer of loose sand. 5. How does the velocity of groundwater flow vary with permeability? The higher the permeability the higher the velocity of groundwater....
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This note was uploaded on 04/07/2008 for the course GEOL 103 taught by Professor Stewart during the Fall '07 term at University of Illinois at Urbana–Champaign.
- Fall '07