aquifer (ăk`wĭfər): see artesian well artesian well, deep drilled well through which water is forced upward under pressure. The water in an artesian well flows from an aquifer, which is a layer of very porous rock or sediment, usually sandstone, capable of holding and transmitting large quantities of
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aquifer

In hydrology, a rock layer or sequence that contains water and releases it in appreciable amounts. The rocks contain water-filled pores that, when connected, allow water to flow through their matrix. A confined aquifer is overlain by a rock layer that does not transmit water in any appreciable amount or that is impermeable. There probably are few truly confined aquifers. In an unconfined aquifer the upper surface (water table) is open to the atmosphere through permeable overlying material. An aquifer also may be called a water-bearing stratum, lens, or zone.

aquifer

a porous deposit of rock, such as a sandstone, containing water that can be used to supply wells

aquifer [′ak·wə·fər]

(geology)

A permeable body of rock capable of yielding quantities of groundwater to wells and springs.

(hydrology)

A subsurface zone that yields economically important amounts of water to wells.

aquifer (redirected from Aquatard)

aquifer

aquifer
(redirected from Aquatard)