EASC 104 Lecture Notes - Lecture 18: Seismic Wave, Aquifer, Capillary Action
28 Dec 2012
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Aquifer: unit of rock from which water can flow and fill into pore-space. Water table: depth at which you will encounter water. Capillary water: an area through which water can move through capillary action. Contamination: big well and pump a lot= suck up salt water and contaminate drinking supply. Water/oil extraction: suck out water from the ground and reduce pressure of pore-space. Water going through the ground--> limestone will react w/ acidic groundwater and form caves. *don"t have to know karst lakes, but know karst topography. Detection: light waves going in and reflect back up to the instrument (like a seismic wave) to look for void spaces. Determine whether or not an area will be affected by sinkholes. Slide 2 organic carbon-rich sediment in aquifer and builds up arsenic inside the sediment through decay and time, releases arsenic into groundwater. Lots of selenium in mud (should be marine)
