From the Latin for 'water carrier', an underground geological formation (typically porous material, such as sand or gravel, or fractured rock) that stores and is capable of transmitting water in sufficient quantities to serve as a source of water supply.
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a subsurface geological structure that contains water.
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Underground bodies of water. There are two types of aquifers. Open aquifers have permeable materials overlying them, e.g. soil with underlying loose gravel. Closed aquifers are capped with an impervious layer of material, such as clay, which prevents water from penetrating from the soils directly above. The water level in aquifers rises and falls i...
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A stratum of earth or permeable rock that stores significant quantities of water.
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An underground geological formation, or group of formations, containing water. Are sources of groundwater for wells and springs.
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A geologic formation that is water-bearing, and which transmits water from one point to another.
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[
n] - underground bed or layer yielding ground water for wells and springs etc
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A geological unit containing suffieient saturated permeable rock to yield significant amounts of water.
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a subsurface geological structure that contains water.
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Water bearer. Earth materials that contain ground water and through which ground water may flow freely. Some examples of these include sand, porous sandstone, and gravel. Aquifers vary widely in their ability to hold water and the speed at which water flo
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noun underground bed or layer yielding ground water for wells and springs etc
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in hydrology, rock layer that contains water and releases it in appreciable amounts. The rock contains water-filled pore spaces, and, when the ... [11 related articles]
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aquifer 1. An underground bed or layer of earth, gravel, or porous stone that yields water. 2. Permeable underground rock stratum which holds water. 3. Any geological formation containing or conducting ground water; especially, one that supplies the water for wells, springs, etc. The pore spaces in aquifers are filled with water and are intercon...
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a body of saturated rock or sediment through which water can move readily.
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Rock formations that store groundwater water.
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A body of rock capable of allowing subterranean water to be stored, transmitted or issue yield as discharge and also capable of absorbing recharge.
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A water-bearing bed of porous rock, often sandstone.
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A body of rock, often sandstone or limestone, that contains significant quantities of water that can be tapped by wells or springs. Much of the human popuation depends on aquifers for its water supply.
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• A subsurface layer or layers of rock or other geological strata of sufficient porosity and permeability to allow either a significant flow of groundwater or the abstraction of significant quantities of groundwater. • Layers of rock, sand or gravel that can absorb water and allow it to...
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aquifer (ăk'wifur) : see artesian well.
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A body of rock through which appreciable amounts of water can flow. The rock of an aquifer must be porous and permeable (full of interconnected holes) so that it can conduct water. Aquifers are an important source of fresh water, for example for drinking and irrigation, in many arid areas of the world, and are exploited by the use of artesian wells...
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A porous, water-saturated layer of sediment and bedrock under the Earth's surface; also described as artesian (confined) or water table (unconfined).
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(L: aqua water; ferre to bear) a layer of rock that holds water and allows water to percolate through it, horizontally and vertically.
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A body of rock that contains significant quantities of water that can be tapped by wells or springs.
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(confined) soil or rock below the land surface that is saturated with water. There are layers of impermeable material both above and below it and it is under pressure so that when the aquifer is penetrated by a well, the water will rise above the top of the aquifer.
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