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	Salt mine - Wikipedia, the free encyclopedia
		A salt mine is an operation involved in the extraction of salt.
		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, in the ancient and medieval world, salt was difficult to come by, and salt mining was often done by slave or prison labor.
	en.wikipedia.org /wiki/Salt_mine (241 words)

	Morton Salt (Site not responding. Last check: 2007-10-21)
		Salt mines are among the safest of mines.
		Salt also may be found in domes, which were formed when Earth pressures forced salt up through cracks in the bedrock from depths as great as 30,000 or 40,000 feet; they resemble plugs of almost-circular shape a few hundred yards to a mile across.
		There are two shafts in each Morton mine – one for personnel and one to lower materials and equipment into the mine, as well as to hoist the mined rock salt to the surface.
	www.mortonsalt.com /industrial/products/facilities_rock.htm (494 words)

	Wieliczka Salt Mine, Poland (Site not responding. Last check: 2007-10-21)
		Salt was mined here as long as 700 years ago and today the mine consists of nine levels going down to a depth of 327m.
		The miners found salt, and enclosed in the first piece of salt they mined was the ring of Kinga.
		In 1978 the mine was included in the First World List of Cultural and Natural Heritage by UNESCO and in 1994 by the Decree of the President of the Republic of Poland, it was recognised as a Monument of History of the Polish Nation.
	www.darkroompeople.com /drp7/wieliczka (410 words)

	Retsof Salt Mine (Site not responding. Last check: 2007-10-21)
		In 1994, this was the largest salt mine in North America, and the second largest in the world.
		Mining operations scrambled to work the accessible areas before the spreading flood, until operations were suspend when the mine was fully saturated with water, in 1995.
		In 2000 a new mine, the Hampton Corners mine, opened 10 miles away, a new vertical shaft accessing the large salt deposits of the area, possibly beginning a new era New York salt mining.
	ludb.clui.org /ex/i/NY3129 (212 words)

	Rock Salt Mining (Site not responding. Last check: 2007-10-21)
		Salt domes (1 2 (diapirs) are a major type of salt structure resulting from tectonic deformation, though off-shore salt basins can also be tectonically active, as off the coast of Brazil.
		The primary use for rock salt excavated from North American salt mines is roadway deicing to preserve safe and passable highways during the winter, though, often, the public is unaware of the activity.
		After crushing, the salt is transported by conveyor belts to salt "pockets" at the shaft bottom for loading and hoisting to the surface.
	www.saltinstitute.org /14.html (879 words)

	Wieliczka - Wikipedia, the free encyclopedia
		Located under the town of Wieliczka is one of the world's oldest operating salt mines (the oldest is at Bochnia, Poland, 20 kilometers from Wieliczka), which has been worked since prehistoric times.
		During World War II, the salt mine was used by the occupying Germans as housing for war-related production plants.
		The salt mine forms an "underground town" with churches, lakes and passages.
	en.wikipedia.org /wiki/Wieliczka (192 words)

	About Berchtesgaden Salt Mine - Mysterious world of salt - Berchtesgaden salt mine (Site not responding. Last check: 2007-10-21)
		Salt has been proven up to 300 m below the bottom of the valley in the area of the salt mine.
		Salt does not occur here in a pure form, but is enclosed in "alpine salt rock".
		The salt mine is not only an important industrial company, but has also been a popular destination for excursions for years, with around 400,000 visitors a year.
	www.salzwelt.de /salzbergwerk-berchtesgaden/en (157 words)

	Finest Source of Salt Crystal Products from the Himalayas of Pakistan \| Ionicsalts
		Discovery of this salt was made around 327 B.C., in the time of Alexander the Great and this material has a long and storied history ranging from a source of bitter warfare to a form of currency and much more.
		The thickness of the whole salt layer is cumulatively 150m, between seven individual strata of salt crystal layered in an asymmetrical dome-type of structure.
		Salt mining in this region is often a family-oriented business, having been passed down through the generations for hundreds of years..possibly longer.
	www.ionicsalts.com /source.htm (971 words)

	Canada's Model Salt Mine
		One is a rock salt mine located in Goderich Harbor and the other an evaporating plant located on the escarpment of the Maitland River.
		Sifto's first mine shaft is circular, measures 4.88 m (16 feet) across and is completely concrete lined; it extends from the surface down to the bottom of the salt beds a distance of 549 m (1,800 feet); a second shaft, also 4.88 m (16 feet) in diameter, is located 61 m (200 feet) away.
		In the mining operation a 12.7 cm (5 inch) gap, (or undercut) about 3.7 m (12 feet) deep is cut across the width of the mining face; the whole face, from floor to roof and side to side is then drilled with holes.
	www.siftocanada.com /saltbook/modelsaltmine.html (553 words)

	Turda Salt Mine
		Turda's salt deposit has been known and exploited by ancient times, but it was put into systematic operation of the deposit, by underground mining work, during the Roman conquest in Dacia.
		The salt was exploited in rooms of 17-34m (56-112 feet) depth and 10-12m (33-39 feet) width, disposed one near the other an separated by a safety consolidation.
		During the 13 century, Turda's salt mine is mentioned in official documents at the 1st of May 1271, when the mine was offered to the Catholic Church's Transilvanian leaders.
	www.ici.ro /romania/en/turism/c_salinaturda.html (552 words)

	Air Resources Laboratory andthe Wieliczka Salt Mine
		The salt carvings were created over many centuries by the miners and other sculptors, and represent an impressive body of art works within the hundreds of kilometers of mine passages.
		The deterioration of the salt carvings is due to attack by water, much of which is transported through the air.
		Salt develops a liquid film on its surface and begins to dissolve when the relative humidity of the surrounding air reaches approximately 75%.
	www.oar.noaa.gov /spotlite/archive/spot_arl.html (803 words)

	Salt Mine In Bochnia, Page I
		According to a legend the mine was founded by St. Kinga, the daughter of Hungarian King Bela IV.
		The legend tells us, that St. Kinga had already received a salt mine from his father, which was located in Transylvania and following the medieval customs, she threw her ring into the shaft.
		Salt was found from the spot where a small shaft was dug and from the first lump of salt, the ring was discovered, which she had thrown in the Transylvanian mine.
	www.silentwall.com /BochniaI.html (458 words)

	Cargill Salt SF Bay: Home Page
		“Salt is born of the purest of parents: the sun and the sea.
		The marriage of salt making and wildlife preservation was officially recognized in 1974, when the Don Edwards San Francisco Bay National Wildlife Refuge, the first urban national wildlife refuge was created on Cargill's operating salt ponds.
		That bond was strengthened recently when Cargill Salt set the stage for the largest wetland restoration project on the West Coast - an area equal in size to Manhattan, with its sale and donation of 25 square miles of shoreline property to the public.
	www.cargill.com /sf_bay/index.htm (205 words)

	SALT - Hutchinson encyclopedia article about SALT (Site not responding. Last check: 2007-10-21)
		A salt mine in the Atacama Desert, Chile.
		Salt pans cover the desert, and this arid area in the north of the country has various mineral deposits (nitrates, iodine), as well as silver and copper (which is Chile's principal export).
		A salt may be produced by a chemical reaction between an acid and a base, or by the displacement of hydrogen from an acid by a metal (see displacement reaction).
	encyclopedia.farlex.com /Salt (691 words)

	Grading and Excavation Contractor \| Project Profile
		We're told this is the oldest operating salt mine in North America; the current mine began operations in 1898.
		The salt was formed in a sea that existed when the supercontinent Pangea broke up some 200 million years ago.
		Avery Island's salt is used in agricultural feed, in oil-field drilling muds, to deice pavements, to soften water, and to produce other chemicals.
	www.forester.net /gx_0407_safety.html (980 words)

	Salt mining: mining part (Site not responding. Last check: 2007-10-21)
		In solution mining, fresh water is injected through a pipe into deep shafts that end in the salt beds, and salty water (brine) is drawn upward and dried, to recrystallize the salt.
		In the mine, the temperature is between 56 and 60 degrees in all season.
		Unlike a coal mine, the operation is free of the hazards of water and gas.
	www.geo.msu.edu /geo333/saltminingM.html (1290 words)

	The ghostly salt city beneath Detroit
		A salt mine worker drills holes in the salt wall in preparation for the dynamite blasting.
		Salt mining in Detroit began in 1896 with the sinking of an 1,100 foot shaft, but the investors went broke.
		In room-and-pillar mining, shafts are sunk into the ground, and miners break up the rock salt with drills after detonation engineers had blasted a section.
	info.detnews.com /history/story/index.cfm?id=17&category=business (1526 words)

	to-Poland.com, Wieliczka Salt Mine (Site not responding. Last check: 2007-10-21)
		During the first period of operation of Krakow Salt Works, the king was forced to resort to the services of private entrepreneurs, the reasons for such a development being the massive costs of mining investments, and the necessity to recruit miners knowing their trade.
		The Salt Mines maintain the royal court and persons of especial importance in the State, and pay for the upkeep of the castles guarding the trade routes.
		The exploitation of the central area of the mine, in the vicinity of the historic excavations, upset the balance of the rock formation and a significantly faster pace of destruction of the tourist route.
	www.to-poland.com /wieliczka.php3 (1453 words)

	Salt
		By the fifteenth century, salt was obtained by boiling brine from salt springs, and many towns and cities in Europe located near such sources.
		Salt made the world go round - - the purpose is to collect evidence to support the theory that common salt and its short supply from the then known sources had catastrophic influence on the development of ancient civilizations.
		The relationship of mankind to salt is ancient, as salt is a substance indispensable for maintaining life.
	42explore.com /salt.htm (1832 words)

	Salt Mines Salzburg - Bad Durrnberg, Hallein - Visit the World of Salt (Site not responding. Last check: 2007-10-21)
		One of the world's oldest mines preserved for tourists is to be found on the Dürrnberg mountain, overlooking the picturesque town of Hallein a short distance south of the city of Salzburg.
		In the World of Salt you are transported back in time to experience what it was like to work here searching for the bounty hidden by nature in the rock.
		A miner explains the history of salt and mining in the Dürrnberg, accompanying you as you glide over the famous salt lake in a raft enveloped by mysterious sounds rising from the depths.
	www.gasthofschorn.at /en/salzbergwerk.shtml (373 words)

	KGS Pub. Inf. Circ. 21--Part 3 of 6 (Site not responding. Last check: 2007-10-21)
		The salt is removed in a checkerboard pattern, in which large square caverns alternate with square pillars of salt that serve as support for the rock above.
		Approximately 75 percent of the salt is mined, while 25 percent is left for pillars.
		Salt is mined in a room-and-pillar fashion, and moved along a conveyor belt and eventually to the surface.
	www.kgs.ku.edu /Publications/pic21/pic21_3.html (438 words)

	Bex (salt mine), Bex, Bex
		At Bex, 8km/5mi north of St Maurice is the only working salt mine in Switzerland (17 deg C / 63 deg F).
		A film show of the development of the tunnels from 1684 to the present day is held in a former salt water reservoir (1826).
		The Bex salt mine tour where you can eat in a restaurant in the middle of a mountain.
	www.planetware.com /bex/bex-salt-mine-ch-vd-bex.htm (142 words)

	Northwich, Cheshire, UK. History: The Salt Industry and its Legacy
		At this mine the top bed had been worked and after that the bottom bed had been sunk too and was being worked, when the mine fell in, carrying with it an engine house, rocksalt house, banksman's house, stable and wheelright's shop, engulfing 12 persons of whom 7 lost their lives.
		This collapsed mine seems to have been abandoned after the collapse, but from plans shown to me by Mr Thomas Ward, manager of the present works, a new winnings was made near the old workings and in the course of 6 or 7 years afterwards, it became connected with several other mines in the neighbourhood.
		The mine was 336 feet deep and had two shafts within a few feet of each other; the main shaft being for the lowering and raising of men and materials, whilst the other shaft accommodated ventilation pipes.
	www.geocities.com /mar1elene (1933 words)

	Exploring the Cleveland Salt Mine
		But for mining engineer Shawn Wilczynski, heading to the salt mine is all in a day's work.
		The Cleveland salt mine produces almost 2 1/2 million tons of salt a year.
		From there the salt is taken by conveyer belt to an underground mill for processing.
	www.wcpn.org /news/2001/01-03/0301salt-mine.html (822 words)

	Wieliczka Salt Mine
		The Wieliczka Salt Mine, located in southern Poland near the city of Krakow, has been worked as a source of rock salt since the late 13th century.
		Water vapor present in the ventilation air in the mine is being absorbed into the rock salt at several locations in the mine, causing erosion of the carved salt surfaces.
		Rock salt develops a liquid film on its surface and begins to dissolve when the relative humidity of the surrounding air reaches approximately 75%.
	www.thesalmons.org /lynn/saltmine.html (503 words)

	Detroit Salt Mine
		The Detroit Salt Company is as much a part of the history and fabric of Detroit as Vernors’, Ford Motor Company and Stroh’s.
		Salt mining began in Detroit in 1906 with the sinking of a 1,000 foot shaft.
		This gigantic salt mine spreads out over more the 1,500 acres with over 100 miles of roads.
	www.insidesouthwest.com /oakwoodheights-detroitsalt.htm (218 words)

	The Seattle Times: Nation & World: Pakistan salt mined old-fashioned way
		The vast and ancient Khewra mine 80 miles south of Islamabad is a period piece: stuffy, colonial-era offices inscribed with the names of the 32 chief mining engineers since 1872, and backbreaking, manual methods of excavation.
		The mine is a maze of tunnels dug on 17 levels with glistening chambers of rock salt that repeatedly shudder with the force of controlled explosions.
		He hopes to increase exports of high-grade rock salt, which can be used to make ornaments, brings a higher price and accounts for 10 to 20 percent of the mine's output.
	seattletimes.nwsource.com /html/nationworld/2002159747_saltmine25.html (781 words)

	Wieliczka Salt Mine - World Heritage Site - Pictures, info and travel reports
		The evolution of the mining processes since the Middle Ages is perfectly illustrated here, due to the conservation of the old galleries and the exhibition of tools used.
		The Wieliczka Salt Mine is an important attraction in the Krakow area.
		The mine is one of the most beautiful places I have ever seen because of the beauty and the originality of the salt chambers and of the works of art.
	www.worldheritagesite.org /sites/wieliczka.html (1265 words)

	Indo-Asian News Service -> India-Tourism/Health/Business-Mines -> Himachal salt mine could become health resort (Site not responding. Last check: 2007-10-21)
		"Even though the mines have reserves of 10,000 tonnes of rock salt, we have extract barely 3,000 tonnes, as it is of poor quality and is largely consumed by cattle," Ponnusamy added.
		Experts say a three to five day stay in the cool salt mines not only has a therapeutic effect but is also the most effective way of treating diseases like asthma.
		"Already the salt from our mines is being fashioned into crystals for lamps in homes and these have a medicinal effect," the official added.
	www.eians.com /stories/2005/05/17/17ba.shtml (304 words)

	maplink_Akso
		The mine underlies three rural towns thirty miles south of Rochester, New York, alongside the Genessee River.
		Following the collapse former DEC Commissioner Zagata ruled that salt mining was so much in the public interest as to justify expedited review of the larger 9,000 acre mine at Hampton Corners, which he ultimately approved.
		Additional salt mine storage projects are under way in Bath and Avoca, New York, where fresh water from Cohocton River is being injected into salt domes to create a cavity to store liquid propane, with the brine being discharged directly back into the river.
	www.homestead.com /concernedcitizens/maplink_Akso.html (376 words)

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