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Coordinates: 46°23′42.27″N 82°36′28.5″W / 46.3950750°N 82.607917°W

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Lacnor Mine
Location
Lacnor Mine Location in Ontario
Location	Elliot Lake
Province	Ontario
Country	Canada
Coordinates	46°23′42.27″N 82°36′28.5″W / 46.3950750°N 82.607917°W / 46.3950750; -82.607917
Production
Products	Uranium
Production	3.4 Mt ore
History
Opened	1957
Closed	1960
Owner
Company	Rio Algom

The Lacnor Mine, is an abandoned uranium mine in the Elliot Lake area of Ontario, owned by Rio Algom Ltd. The site has been rehabilitated and its tailings facility is currently undergoing environmental monitoring by Denison Environmental Services.

The site was in operation from 1957 to 1960,^[1] during which time it produced 3.4 million tonnes of ore.^{[citation needed]}

History

Elliot Lake Mining District

The region of Elliot Lake, Ontario was a mecca of Canadian mineral mining from the 1950s to the early 1990s. The region housed ten mines and five mills (Lacnor Mine, Nordic Mine, Panel Mine/Mill, Pronto Mine/Mill, Quirke Mine/Mill, Stanleigh Mine/Mill and the Spanish American Mine/Mill), all operated by the Rio Algom Company. All of the mines and mills in Elliot Lake either ran out their contracts or were shut down by the early 1990s due to the discovery of high-grade uranium deposits in Australia and Saskatchewan. This meant there was no longer a need for the low-grade ore from Elliot Lake, which required a large amount of processing.

Geology

The Lacnor deposit is on the south limb of the Quirke Lake syncline. The ore bed consists of uraniferous quartz-pebble conglomerate. Two principle beds of conglomerate ore were found. The average thickness of the upper bed is 11 feet and the lower bed 12 feet. They are separated by a 14-foot bed of pebbly quartzite that is radioactive but not of ore grade. The strata strike about N70E and dips 18 N. The east/west ore width indicated by drilling is approximately 3300 feet. The conglomerate consists of quartz pebbles in a matrix of feldspathic quartzite well mineralized with 5 to 15% pyrite and frequently containing a little chalcopyrite.^[2]

Other mines in the area

References

^ Rio Algom Ltd (2001). "Elliot Lake Uranium Mine Site Reclamation: Information Package" (PDF). Archived from the original (PDF) on 2011-07-09. Retrieved 2009-06-18. {{cite journal}}: Cite journal requires |journal= (help)
^ "Ontario Ministry of Northern Development and Mines". Retrieved 1 August 2012.

External links

"Elliot Lake Uranium Mines". MiningWatch Canada. Retrieved 2009-01-30.
"CIM Bulletin - The Story of Elliot Lake". Canadian Institute of Mining and Metallurgy. Retrieved 2009-01-30.

v t e Uranium mining in Ontario
Elliot Lake Mines	Buckles Mine Can-Met Mine Denison Mine Lacnor Mine Milliken Mine Nordic Mine Panel Mine Pronto Mine Quirke Mine Spanish American Mine Stanleigh Mine Stanrock Mine
Elliot Lake mines' owners	Rio Algom BHP (parent company of Rio Algom) Denison Mines Uranium Participation Corporation (contracting to Denison Mines) Korea Electric Power Corporation (15% owners of Denison Mines)
Elliot Lake Mines' politics and people	1974 Elliot Lake miners strike Royal Commission on the Health and Safety of Workers in Mines Franc Joubin Joseph Hirshhorn Serpent River First Nation United Steelworkers
Bancroft Area Mines	Faraday Mine/Madawaska Mine Dyno Mine Bicroft Mine Fission Mine Greyhawk Mine
Bancroft mines' owners	Ovintiv
Bancroft mines' politics & people	Arthur H. Shore Henry Joseph Maloney
Organisations & events	Canadian Nuclear Safety Commission International Atomic Energy Agency Bancroft Rockbound Gemboree
Agnew Lake	Agnew Lake Mine Kerr Addison Mines Ltd.
Main articles	Uranium mining in the Elliot Lake area Uranium mining in the Bancroft area

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