Bicroft Mine

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Bicroft Mine

Coordinates: 44°59′30.39″N 78°2′16.83″W / 44.9917750°N 78.0380083°W

From Wikipedia, the free encyclopedia

Bicroft Mine
Location
The mine in 1956
Bicroft Mine Location in Bancroft, Ontario Show map of Haliburton County Bicroft Mine Bicroft Mine (Southern Ontario) Show map of Southern Ontario Bicroft Mine Bicroft Mine (Ontario) Show map of Ontario
Location	Cardiff
Province	Ontario
Country	Canada
Coordinates	44°59′30.39″N 78°2′16.83″W / 44.9917750°N 78.0380083°W / 44.9917750; -78.0380083
Production
Products	Uranium oxide
Production	2,333,106 tonnes
History
Opened	1957
Closed	1963
Owner
Company	Barrick Gold

Bicroft Mine is a decommissioned underground uranium mine, located in Cardiff, near Bancroft, Ontario, Canada.

It is one of fourteen former uranium mines in Ontario that is monitored by the Canadian Nuclear Safety Commission, and one of twenty in Canada.

Aside from uranium, the mine has also produced globally renowned samples of Kainosite-(Y).

Location

[edit]

Bicroft Mine is a decommissioned former underground uranium mine in Cardiff, 19 kilometres (12 mi) southwest of Bancroft, Ontario, Canada.^[1]

It is one of four former mines near Bancroft - the others being Faraday Mine/Madawaska Mine, Dyno Mine, and Greyhawk Mine.^[2]

Products

[edit]

Aside from uranium, the mine has also produced globally renowned samples of Kainosite-(Y).^[3]

Discovery of uranium - 1922 to 1953

[edit]

Uranium was first discovered in the area of Cardiff in 1922 by W. M. Richardson. Between 1953 and 1956, one hundred area prospects were opened, including one by Central Lake Uranium Mines Limited that later turned into Bicroft Mine.^[4]

Mining operations - 1953 to 1960

[edit]

The mine operated from 1957 to 1963 and produced 2,333,106 tonnes of uranium ore^[5] at an average concentration of 19 mg of uranium per kg of ore.^[6] The 2,284,421 tonnes of tailings are deposited in two impoundments near Cardiff:^[2]^[7] Auger Lake and South Tailings Basin which flow into Paudash Lake.^[1]

The mine employed up to 500 people at its peak.^[8]

Bicroft Mine was originally owned by Bicroft Uranium Mines Limited,^[9] and is now owned by Barrick Gold.^[10]^[11]^[12]

Closure and decommissioning - 1960 to present day

[edit]

Repairs to the decommissioned site, included adding vegetation over the tailings, were completed in 1980. Subsequent upgrades of the dams were completed in the 1990s.^[11]^[7]^[13] The site is now a wetland.^[1]

Water sampling completed by the Canadian Nuclear Safety Commission in 2019 confirmed that the site produces no risk to the environment or ecology.^[11]

In September 2020, Barrick Gold requested to renew their waste nuclear substance license.^[14] The Canadian Nuclear Safety Commission renewed the license on 24 February 2021.^[14] The license will expire on 29 February 2036.^[14]

References

[edit]

^ ^a ^b ^c Canada, Library and Archives (2019-03-08). "Search - Theses Canada". www.bac-lac.gc.ca. Archived from the original on 2023-07-03. Retrieved 2021-11-22.
^ ^a ^b Laidlow, Allison (6 May 2013). Characterization of Uranium and Rare Earth Element Mobility and Attenuation Downstream of Decommissioned Tailings Impoundments at the Bicroft Mine near Bancroft, Ontario (Thesis). hdl:1974/8022.
^ McDougall, Raymond (2019-09-03). "Mineral Highlights from the Bancroft Area, Ontario, Canada". Rocks & Minerals. 94 (5): 408–419. doi:10.1080/00357529.2019.1619134. ISSN 0035-7529. S2CID 201298402.
^ Reynolds, Nila (1979). Bancroft. A Bonanza of Memories. Bancroft Centennial Committee. p. 192.
^ Mohamad, Bin Daud (June 1980). A Study of Uranium in Ground Water Around Greyhawk Mine, Bancroft, Ontario (Thesis). hdl:11375/6845. Archived from the original on 2023-03-18. Retrieved 2023-07-03.
^ Parsons, Michael B.; Friske, Peter W. B.; Laidlow, Allison M.; Jamieson, Heather E. (2014). "Abstract: Controls on Uranium, Rare Earth Element, and Radionuclide Mobility at the Decommissioned Bicroft Uranium Mine, Ontario". Archived from the original on 2021-11-22. Retrieved 2021-11-22. {{cite journal}}: Cite journal requires |journal= (help)
^ ^a ^b "Independent Environmental Monitoring Program: Dyno, Bicroft, and Madawaska Mines". Canadian Nuclear Safety Commission. 2020-09-21. Archived from the original on 2020-11-01. Retrieved 2021-11-22.
^ "Uranium Citizens Inquiry". www.uraniumcitizensinquiry.com. Archived from the original on 2017-04-19. Retrieved 2021-11-22.
^ Evans, A. M. (1966-12-01). "The development of lit-par-lit gneiss at the Bicroft uranium mine, Ontario". The Canadian Mineralogist. 8 (5): 593–609. ISSN 0008-4476. Archived from the original on 2021-11-22. Retrieved 2021-11-22.
^ "3 decommissioned uranium mines near Bancroft, Ont. deemed protected, no health impacts: study - Peterborough | Globalnews.ca". Global News. Archived from the original on 2023-03-18. Retrieved 2021-11-22.
^ ^a ^b ^c "Sampling near old mine sites finds 'no expected health impacts'". Haliburton Echo. 2020-10-06. Archived from the original on 2023-03-18. Retrieved 2021-11-22.
^ Smith-Millar, Trevor (2020-10-15). "Old Uranium Mines in Bancroft Area Deemed Safe". My Bancroft Now. Archived from the original on 2020-11-26. Retrieved 2021-11-22.
^ "Subsurface Investigations and Condition of Dams: Bicroft Mine Site Bancroft, Ontario · U-Links Centre For Community Based Research". database.ulinks.ca. Archived from the original on 2021-11-22. Retrieved 2021-11-22.
^ ^a ^b ^c "Regulatory Oversight Report for Uranium Mines, Mills, Historic, and Decommissioned Sites in Canada: 2020" (PDF). Canadian Nuclear Safety Commission: 160. Archived (PDF) from the original on 2022-09-15. Retrieved 2021-11-29.

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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Categories:

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Location

Products

Discovery of uranium - 1922 to 1953

Mining operations - 1953 to 1960

Closure and decommissioning - 1960 to present day

See also

References