Aquifer: A body of rock that is sufficiently permeable to conduct groundwater and to yield economically significant quantities of water to wells and springs.
A geological period having a duration of approximately 70
million years, from 135 to 65 million years.
The act of reducing or exhausting groundwater.
A fracture or fracture zone along which there has been
displacement of the sides relative to one another parallel to
A surface of fracture or parting in a rock, without
A limestone that has been dissolved by water to form sinkholes,
caves, caverns and other solution features.
Said of a rock that allows water and other liquids or gases to
move through it.
A geological epoch that began 2 million years ago and lasted
until 10,000 years ago.
epoch that began 5.1 million years ago and lasted until 2
million years ago.
Precipitation: Water that falls to the surface from the atmosphere as rain, snow, hail, or sleet.