11_Hydrogeology - Hydrogeology Aquifer: a rock body that...

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Hydrogeology Aquifer : a rock body that has the capacity to transmit “usable” quantities of water to a well good aquifers: sandstone, conglomerate, fractured limestone Aquitard : A rock body that does NOT transmit “usable” quantities of water over a reasonably short period of time example of aquitard: shale, clay
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Hydrogeology In Cross Section
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Hydrogeology Water table : a level below which the ground is saturated with water and above which it is partially saturated with air and water
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Porosity and Permeability Porosity: fraction of a rock body consisting of void spaces (example: 20% porosity) Primary porosity - present initially in a rock when created Secondary porosity - created later by processes such as fracturing or dissolution Permeability: a measure of how easily a material can transmit fluids measure of interconnectivity of void spaces
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Porosity
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This note was uploaded on 03/06/2011 for the course GEO 301 taught by Professor Long during the Fall '07 term at University of Texas at Austin.

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11_Hydrogeology - Hydrogeology Aquifer: a rock body that...

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