05-12-2012, 06:43 PM
HYDROGEOLOGY
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Hydrogeology
Basic Definition :
(hydro- water, and geology - the study of the Earth) is the area of Geology that deals with the distribution and movement of ground water in the soil and rocks of the Earth's crust
Water is fundamental to life
Earth has about 325 million cubic miles/ covers about 71 % of its surface
97.5% of this water is salt water
Fresh water- water that has a salt content of less than 0.1%
97.5% Salt water
2.5% Fresh water
1.7% Polar ice caps and glaciers
.77% Accessible fresh water
Groundwater Basics - Definitions
What is Groundwater?
Groundwater is water below the water table where all of the pore spaces are filled with water.
The area above the water table where the pore spaces are only partially filled with water is called the capillary fringe or unsaturated zone.
Aquifers
Definition
-- aquifers are the geological saturated formations , have the capacity to store transmit, and yield sufficient quantity of water
--unconsolidated deposits of sand and gravel forms good aquifers