Aquifer

An aquifer is an underground layer of water-bearing permeable rock, or permeable mixtures of unconsolidated materials (gravel, sand, silt, or clay) (see also groundwater). Some productive aquifers are in fractured rock (carbonate rock, basalt, or sandstone). The study of water flow in aquifers and the characterization of aquifers is hydrogeology.

Related Topics:
Water - Gravel - Sand - Silt - Clay - Groundwater - Rock - Carbonate rock - Basalt - Sandstone - Hydrogeology

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