chapter 9 – part 2 water resources
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Groundwater Label your diagrams Aquifers- small spaces found within permeable layers of rock and sediment where water is found. Unconfined aquifers- an aquifer that is simply porous rock covered by soil. Confined aquifers- an aquifer surrounded by a layer of impermeable rock or clay. Label your diagramsTRANSCRIPT
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Chapter 9 – Part 2Water Resources
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Aquifers- small spaces found within permeable layers of rock and sediment where water is found.
Unconfined aquifers- an aquifer that is simply porous rock covered by soil.
Confined aquifers- an aquifer surrounded by a layer of impermeable rock or clay.
Groundwater
Label your diagrams
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Porosity the percentage of a rock
or sediment that consists of open spaces
p.397
…like skin “pores”
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Permeability the ability of a rock
or sediment to let fluids pass through its open spaces, or pores
p.398
Percolation the process of a
liquid (water) seeping into the ground
– like a percolating coffee maker:
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Water table- the uppermost level at which the water in an area fully saturates the rock or soil.
Recharge- the input process of water percolating into an aquifer.
Springs- water from an aquifer that naturally percolates up to the surface.
Groundwater
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Cone of depression- an area where there is no longer any groundwater.
Groundwater
Label your diagrams
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Saltwater intrusion- when the pumping of fresh water out of a well is faster than the recharge. Near coastal areas this can cause salt water to infiltrate the aquifer.
Groundwater
Label your diagrams
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http://www.good.is/post/transparency-drinking-water/
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