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ES 09.2

Hydrosphere

TermDefinition
Groundwater water held underground in the soil or in pores and crevices on rocks
Porosity is amount of pore spaces.
water table upper boundary of zone of saturation
zone of aeration air in pores above the zone of saturation
Permeability ability of material to let water pass.
Aquifers are permeable sediments with large pores.
Aquicludes are barriers to groundwater flow.
Springs natural discharge of groundwater
Hot springs greater than 37 degrees celsius
Geyser is explosive hot spring.
carbonic acid. reason of why groundwater is slightly acidic
calcite water dissolves in limestone
Stalactites formed by calcite precipation
Hard Water has high amounts of Ca, Mg, and Fe; can clog pipes
wells hole in ground to reach an aquifer
Ordinary Well reaches below a water table
Cone of depression formed by over pumping
Recharge refilling of the cone of depression
Artesian -Drilled into aquifer under pressure -water spurts like a fountain
Threats to water supply -overuse -pollution -chemicals -salt -radon
Created by: moodster3
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