World Library  
Flag as Inappropriate
Email this Article

Salt mining

Article Id: WHEBN0000582151
Reproduction Date:

Title: Salt mining  
Author: World Heritage Encyclopedia
Language: English
Subject: Salt, Salt mines, John Corbett (industrialist), Sifto Canada, Measuring moisture content using time-domain reflectometry
Collection: Salt Mines
Publisher: World Heritage Encyclopedia

Salt mining

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 1
  • History 2
  • See also 3
  • References 4
  • External links 5

Mining regions

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 extending 7 km2 (2.7 sq mi) .[4]
England The "-wich towns" of Cheshire and Worcestershire.
Germany Rheinberg, Berchtesgaden
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 (with Salina Veche, Europe's largest salt mine), 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.
  • Western New York, location of American Rock Salt, the largest operating salt mine in the United States with a capacity for producing up to 18,000 tons each day.[7]


Diorama of an underground salt mine in Europe.
Inside Salina Veche, Europe's largest salt mine, in Slănic, Prahova, Romania. The railing (lower middle) gives an idea of scale.

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 ..."[8]

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

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

See also


  1. ^ "'"Oilfield Glossary: Term 'evaporite. Retrieved 2012-02-13. 
  2. ^ Maugh II, Thomas H. (1 November 2012). "Bulgarians find oldest European town, a salt production center".  
  3. ^ "Industries in Godrich". Retrieved 2008-02-08. 
  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. ^ Spector, Joseph (13 Jan 2015). "American Rock Salt to expand in LIvingston". Democrat and Chronicle. Retrieved 20 July 2015. 
  8. ^ 'Plinius Naturalis Historia XXXI.''"'". Retrieved 2012-02-13. 

External links

  • JMS Salt - production site
  • Salt mine in the Danakil Depression in Ethiopia
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.