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Discovery How Stuff Works : Salt
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underground salt mine.
underground salt mine.
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salt mining explained 1of2
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The Hutchinson Salt Mine Documentary
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Khewra Salt Mine and Origin of Pink Himalayan Salt - A natural asthma treatment
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ARMA 3: Altis Life Salt Mining Tutorial! [BWG SERVER]
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Ethiopia - Salt mining by the Afar people in the Danakil
Ethiopia - Salt mining by the Afar people in the Danakil
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Salt mining in Kilifi county
Salt mining in Kilifi county
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Wieliczka Salt Mine Krakow Poland
Wieliczka Salt Mine Krakow Poland
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Salt Mining Underground 1958
Salt Mining Underground 1958
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Oil Driller Breaches Salt Mine Under Louisana Lake
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Wieliczka salt mine: Underground Salt Cathedral of Poland
Wieliczka salt mine: Underground Salt Cathedral of Poland
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Global Economy and Health: UBC Seeks Solutions to Salt Mining Challenges
Global Economy and Health: UBC Seeks Solutions to Salt Mining Challenges
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Salina ( Salt mine ) Praid-Romania
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BETEK Trenching: Surface Mining in salt mine at South America with BETEK - Tools made in Germany
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Salt mining leaves bitter taste for Indian workers
Salt mining leaves bitter taste for Indian workers
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Salt Mining, Erkat ER 3000 + Hitachi ZX 450
Salt Mining, Erkat ER 3000 + Hitachi ZX 450
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salt crusher machine for sale,mobile jaw crusher for salt mining
salt crusher machine for sale,mobile jaw crusher for salt mining
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Everything Purple [EP] - Odinzu: Salt Mining
Everything Purple [EP] - Odinzu: Salt Mining
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rock salt mining production equipment
rock salt mining production equipment
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salt mining equipment in india
salt mining equipment in india
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Siwa Salt mining Co..
Siwa Salt mining Co..
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Salt Mining Walkthrough
Salt Mining Walkthrough
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Salt mining - swahili
Salt mining - swahili
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Lithium Mining in Bolivia
Lithium Mining in Bolivia's Salt Flats | Global 3000
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ERKAT ER1500-3X SALT MINING
ERKAT ER1500-3X SALT MINING
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Danakil and Salt Mining
Danakil and Salt Mining
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salt mining process  ballast production line
salt mining process ballast production line
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From Wikipedia, the free encyclopedia
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Inside a Polish salt mine in Wieliczka, a World Heritage Site.

A salt mine is a mine that extracts rock salt or halite from evaporite formations.[1]

Mining regions[edit]

The Crystal Valley region of the Khewra Salt Mines in Pakistan. With around 250,000 visitors a year, the site is a major tourist attraction.
A small mosque made of salt bricks inside the Khewra Salt Mines complex.

Areas known for their salt mines include:

Country Site/s
Austria Hallstatt and Salzkammergut.
Bosnia Tuzla
Bulgaria Provadiya; and Solnitsata, an ancient town believed by Bulgarian archaeologists to be the oldest in Europe and the site of a salt production facility approximately six millennia ago.[2]
Canada Sifto Salt Mine in Goderich, Ontario, which, at 1.5 miles (2.4 km) wide and 2 miles (3.2 km) long,[3] is one of the largest salt mines in the world.[4]
England The "-wich towns" of Cheshire and Worcestershire.
Germany Rheinberg
Italy Racalmuto, Realmonte and Petralia Soprana[5] within the production sites managed by Italkali.
Morocco JMS salt mine in Khemisset.
N. Ireland Kilroot, near Carrickfergus, more than a century old and containing passages whose combined length exceeds 25 km.
Pakistan Khewra Salt Mines, the world's second largest salt-mining operation, spanning over 300 km.
Poland Wieliczka and Bochnia, both established in the mid-13th century and still operating, mostly as museums.
Romania Slănic, Cacica, Ocnele Mari, Salina Turda, Târgu Ocna, Ocna Sibiului and Praid.
United States
  • Avery Island, Louisiana;
  • Detroit, Michigan, 1,100 feet (340 m) beneath which the Detroit Salt Company's 1,500-acre (10 km2) subterranean complex extends;[6]
  • Saltville, Virginia, which served as the site of one of the Confederacy's main saltworks.

History[edit]

Diorama of an underground salt mine in Europe.
Inside a Romanian salt mine in Slănic, Prahova. The railing (lower middle) gives an idea of scale.
Modern rock-salt mine near Mount Morris, New York.

Before the advent of the internal combustion engine and earth moving equipment, mining salt was one of the most expensive and dangerous of operations, due to rapid dehydration caused by constant contact with the salt (both in the mine passages and scattered in the air as salt dust), among other problems borne of accidental excessive sodium intake. While salt is now plentiful, until the Industrial Revolution it 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; 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 sentenced was low. The Roman historian Pliny the Elder stated as an aside in his Natural History's discussion of sea water, that "[I]n Rome ... the soldier's pay was originally salt and the word 'salary' derives from it ..."[7]

Even as recently as the 20th century, salt mining as a form of punishment was enforced in the Soviet Union and Nazi Germany.[citation needed]

Most modern salt mines are privately operated or operated by large multinational companies such AkzoNobel, Cargill and Compass Minerals.

See also[edit]

References[edit]

  1. ^ "Oilfield Glossary: Term 'evaporite'". Glossary.oilfield.slb.com. Retrieved 2012-02-13. 
  2. ^ Maugh II, Thomas H. (1 November 2012). "Bulgarians find oldest European town, a salt production center". The Los Angeles Times. Retrieved 5 December 2012. 
  3. ^ "Industries in Godrich". Retrieved 2008-02-08. [dead link]
  4. ^ "CBC-TV - Geologic Journey - Goderich, Ontario and Detroit Michigan". CBC 2012. Retrieved 3 August 2012. 
  5. ^ "Italkali Spa - Production Sites" (online). Retrieved 2011-05-09. 
  6. ^ "The Detroit Salt Company -- Explore the City under the City" (online). Retrieved 2008-02-08. 
  7. ^ "''Plinius Naturalis Historia XXXI.''". Penelope.uchicago.edu. Retrieved 2012-02-13. 

External links[edit]

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