Aquifer Geology and Geography Permeable materials such as sandstone, limestone and layers of sand...
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Transcript of Aquifer Geology and Geography Permeable materials such as sandstone, limestone and layers of sand...
Aquifer Geology Aquifer Geology and Geographyand Geography
Permeable materials Permeable materials such as sandstone, such as sandstone,
limestone and limestone and layers of sand and layers of sand and
gravelgravel
Recharge ZoneRecharge Zone
•Ground surface where Ground surface where water enters an aquiferwater enters an aquifer
•Dependent on Dependent on permeabilitypermeability
Springs and WellsSprings and Wells
•Movement determined by the Movement determined by the slope of the water tableslope of the water table
•If the water table reaches the If the water table reaches the Earth’s surface water will flow out Earth’s surface water will flow out of the ground (Spring)of the ground (Spring)
•Water table higher than the Water table higher than the Earth’s surface lakes will form.Earth’s surface lakes will form.
Artesian WellArtesian Well
•Water flows Water flows from a from a crack in the crack in the cap rock of cap rock of an aquifer.an aquifer.
http://www.bartleby.com/images/A4images/A4artwel.jpg
Hot SpringsHot Springs
•one one form of form of an an artesiaartesian welln well
http://www.personal.engin.umich.edu/~yeq/images/YellowStone%201/Mammoth%20Hot%20Springs%201.jpg
WellsWells•A human A human
made hole made hole that is deeper that is deeper than the level than the level of the water of the water tabletable
http://mainegov-images.informe.org/doc/nrimc/mgs/sites-1999/oct99-1.gif
Cave FormationsCave Formations
•The underground The underground erosion of limestoneerosion of limestone
•Caused by carbonic acidCaused by carbonic acid
DepositionDeposition•Deposits of calcium Deposits of calcium carbonatecarbonate
StalactitesStalactites
•StalactitesStalactites-form from -form from the ceilingthe ceiling
http://www.goodearthgraphics.com/virtcave/staltite/stal1.jpg
StalagmitesStalagmites•StalagmiteStalagmites-form from s-form from dripping dripping waterwater
http://www.dudleycc.pwp.blueyonder.co.uk/stalagmites.jpg
Dripstone ColumnDripstone Column
http://science.nature.nps.gov/im/images/cavecol1.jpg
SinkholesSinkholes
•When the water table is When the water table is lower than the level of a lower than the level of a cavecave
•Results in the roof Results in the roof collapsingcollapsing
http://www.sinkholes.net/new_page_1_files/image006.gif