Salt mine


Salt mine

A salt mine is an operation involved in the extraction of salt from rock salt or halite, a type of evaporitic deposit [ [http://www.glossary.oilfield.slb.com/Display.cfm?Term=evaporite Oilfield Glossary: Term 'evaporite' ] ] . Areas known for their salt mines include Khewra in Pakistan, Tuzla in Bosnia, Wieliczka and Bochnia in Poland, Hallstatt and Salzkammergut in Austria, in Germany, Slănic in Romania, Provadiya in Bulgaria, Avery Island in Louisiana, the wich towns of Cheshire and Worcestershire in England, and the Detroit Salt Company's convert|1500|acre|km2|-1|sing=on|lk=on subterranean complex convert|1100|ft|m|-1 beneath the city of Detroit. [cite web |url=http://www.detroitsalt.com/home.htm |title=The Detroit Salt Company --Explore the City under the City. |accessdate=2008-02-08 |format=online |work= ] The Sifto Salt Mine in Goderich, Ontario Canada is one of the largest salt mines in the world. It measures convert|1.5|mi|km|1|lk=on wide and convert|2|mi|km|1 long. [cite web |url=http://www.goderich.ca/industry.html |title=Industries in Goodrich |accessdate=2008-02-08 |format= |work= |quote=At a depth of convert|1750|ft|m, the Sifto Salt Mine underworld, about one and one half miles wide, extends convert|2|mi|km into Lake Huron. The ceilings average convert|45|ft|m in height. Thick pillars give the appearance of rooms that trucks travel through to carry rock salt to crushing and screening operations before it is hoisted to the surface.]

History

Prior to the advent of the internal combustion engine and earth moving equipment, mining salt was one of the most expensive and dangerous of operations. While salt is now plentiful, before the Industrial Revolution salt was difficult to come by, and salt mining was often done by slave or prison labor. In ancient Rome, salt on the table was a mark of a rich patron (and those who sat nearer the host were above the salt, and those less favored were "below the salt"). Roman prisoners were given the task of salt mining, and life expectancy among those so sentenced was low. Roman soldiers were paid in salt, which is where the term "salary" comes from.

Even as recently as the 20th century, salt mining in the Soviet Union and Nazi Germany was performed by persons being punished.

Today most salt mines are operated by large multi-national companies like Cargill and Compass Minerals.

Footnotes

ee also

*Khewra Salt Mines
*Wieliczka Salt Mine
*Windsor salt mine
*Salt lakes are also exploited to get salt.

External links

* [http://www.geographyinaction.co.uk/Assets/Photo_albums/Ten/pages/Salt_Mine.html Salt Mine]


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Look at other dictionaries:

  • Salt mine — Salt Salt, a. [Compar. {Salter}; superl. {Saltest}.] [AS. sealt, salt. See {Salt}, n.] 1. Of or relating to salt; abounding in, or containing, salt; prepared or preserved with, or tasting of, salt; salted; as, salt beef; salt water. Salt tears.… …   The Collaborative International Dictionary of English

  • salt-mine — saltˈ mine noun A mine of rock salt • • • Main Entry: ↑salt …   Useful english dictionary

  • salt mine — noun 1. a mine where salt is dug • Hypernyms: ↑mine 2. a job involving drudgery and confinement • Syn: ↑treadmill • Hypernyms: ↑occupation, ↑business, ↑job, ↑ …   Useful english dictionary

  • salt mine — mine from where salt is excavated; job that involves hard work and confinement (Slang) …   English contemporary dictionary

  • salt mine — 1. a mine from which salt is excavated. 2. Usually, salt mines. a place of habitual confinement and drudgery: After two weeks of vacation it will be back to the salt mines for the staff. [1675 85] * * * …   Universalium

  • salt mine — noun a) Any mine used for the extraction of salt. b) Any laborious work, especially in a confined space …   Wiktionary

  • salt mine — /ˈsɒlt maɪn/ (say solt muyn) noun 1. a mine from which salt is excavated. 2. (usually plural) Colloquial (humorous) a place of employment. Also, saltmine …   Australian English dictionary

  • Salt mine — (jocular) (usually plural) workplace in which work is fast paced and gruelling …   Dictionary of Australian slang

  • salt mine — Australian Slang (jocular) (usually plural) workplace in which work is fast paced and gruelling …   English dialects glossary

  • salt mine —  Work, drudgery …   American business jargon


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