Fossil water

Fossil water

Fossil water or paleowater is groundwater that has remained in an aquifer for millennia. Water can rest underground in aquifers for thousands or even millions of years. When geologic changes seal the aquifer off from further "recharging," the water becomes trapped inside and then becomes known as fossil water. Radiocarbon dating has revealed that some aquifer water has been there for 40,000 years, since before the end of the last ice age.

The Ogallala Aquifer and Nubian Sandstone Aquifer System are among the most notable of fossil water reserves. Extraction of fossil water is sometimes referred to as water mining because it is a non-renewable resource.

ee also

*Artesian aquifer
*Hydrogeology
*Water resources

References

*cite web | url=http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=17242 | title="Fossil Water" in Libya | work=NASA Earth Observatory newsroom | accessdate=2006-04-27


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  • fossil water — noun Water which has been trapped in an underground reservoir since a previous geological age • • • Main Entry: ↑fossil * * * fossil water, water deposited underground in geological ages: »Fossil water…apparently accumulated during heavy rains… …   Useful english dictionary

  • fossil water — aquifer aquifer n. 1. an underground bed or layer yielding ground water for wells and springs etc.; as, the Oglala aquifer. The water contained in an aquifer may be of great age, and in such cases is sometimes called {fossil water}. [WordNet 1.5… …   The Collaborative International Dictionary of English

  • fossil water — fosilinis vanduo statusas T sritis ekologija ir aplinkotyra apibrėžtis Vanduo, esantis uždaruose Žemės plutos uolienų ertmėse. atitikmenys: angl. fossil water; underground water vok. Fossilwasser, n rus. подземная вода, f; фоссильная вода, f …   Ekologijos terminų aiškinamasis žodynas

  • fossil water —   water that has become detached from the hydrological cycle having lain, untouched and without addition, in deep aquifers since prehistoric times …   Geography glossary

  • fossil water — /ˈfɒsəl wɔtə/ (say fosuhl wawtuh) noun water which has been trapped in an aquifer for thousands or even millions of years; palaeowater …  

  • Water supply and sanitation in Saudi Arabia — differs from most other countries in three significant aspects. First, it relies almost exclusively on two sources that are absent in most other countries: desalination and fossil water. Second, given the substantial oil wealth of the country,… …   Wikipedia

  • Fossil — Fos sil, a. [L. fossilis, fr. fodere to dig: cf. F. fossile. See {Fosse}.] 1. Dug out of the earth; as, fossil coal; fossil salt. [1913 Webster] 2. preserved from a previous geological age; as, fossil water from deep wells; usually implying that… …   The Collaborative International Dictionary of English

  • Fossil copal — Fossil Fos sil, a. [L. fossilis, fr. fodere to dig: cf. F. fossile. See {Fosse}.] 1. Dug out of the earth; as, fossil coal; fossil salt. [1913 Webster] 2. preserved from a previous geological age; as, fossil water from deep wells; usually… …   The Collaborative International Dictionary of English

  • Fossil cork — Fossil Fos sil, a. [L. fossilis, fr. fodere to dig: cf. F. fossile. See {Fosse}.] 1. Dug out of the earth; as, fossil coal; fossil salt. [1913 Webster] 2. preserved from a previous geological age; as, fossil water from deep wells; usually… …   The Collaborative International Dictionary of English

  • Fossil farina — Fossil Fos sil, a. [L. fossilis, fr. fodere to dig: cf. F. fossile. See {Fosse}.] 1. Dug out of the earth; as, fossil coal; fossil salt. [1913 Webster] 2. preserved from a previous geological age; as, fossil water from deep wells; usually… …   The Collaborative International Dictionary of English

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