Agua SubTerraneas
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Transcript of Agua SubTerraneas
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Groundwater Hydrology What is Groundwater?
What is Groundwater Hydrology? The Geology of Groundwater
Groundwater Recharge
Aquifers
Groundwater Movement
Age of Groundwater
Locating and Mapping Groundwater
Drilling a Groundwater Well
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From Chapter 2
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Groundwater Hydrology What is Groundwater?
What is Groundwater Hydrology? The Geology of Groundwater
Groundwater Recharge
Aquifers
Groundwater Movement
Age of Groundwater
Locating and Mapping Groundwater
Drilling a Groundwater Well
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What is Groundwater?
Found in the subsurface, inside pores within soil
and rock
Spelled either as two words, Ground Water, or as
one, Groundwater
Groundwater is the largest source of freshwater on
earth, and was little used until recently.
With electricity and the modern pump,
groundwater has become very important toagriculture, cities, and industries.
It is usually much cleaner than surface water.
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What is Groundwater?
.
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How much water is in a cubic kilometer (km3)?264,172,052,358 gallons. Thats enough water to supply a cityof about 1 million people with water for 30 years. The
problem is that we have 7 billion people on the planet. (Imagecredit: D. Lani Pascual, IUPUI / Earth Sciences)
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Figure 4.2 This map of major aquifers in the United States shows aninteresting distribution of groundwater formations.
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Groundwater Hydrology What is Groundwater?
What is Groundwater Hydrology? The Geology of Groundwater
Groundwater Recharge
Aquifers
Groundwater Movement
Age of Groundwater
Locating and Mapping Groundwater
Drilling a Groundwater Well
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What is Groundwater Hydrology? It is the study of the characteristics, movement, and
occurrence of water found below the surface.
Groundwater and aquifers are like surface water
and watersheds
An aquifer is a geologic unit that transmits water.
Piezometric surfaces are used to map water levels,
similar to topographic lines on maps.
Each aquifer has its own piezometric surface.
The water level elevation in wells are used to create the
piezometric surface.
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Groundwater Hydrology What is Groundwater?
What is Groundwater Hydrology? The Geology of Groundwater
Groundwater Recharge
Aquifers
Groundwater Movement
Age of Groundwater
Locating and Mapping Groundwater
Drilling a Groundwater Well
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The Geology of Groundwater
Sedimentary Rocks sandstone, shale, limestone, conglomerate
Glaciated Terrain
large valleys and basins were carved out sediments (sands, clays) were left behind
Alluvial Valleys and Fans
along rivers and streams
Tectonic Formations
solid rock is fractured by pressures due to earths
movement