WORLDKINGS - Worldkings News - America Records Institute (AMRI) Creighton Mine: Deepest nikel mine in the world

03-10-2022

(WorldKings.org) Creighton Mine is the world’s deepest nickel mine, with its mining depth extending up to 2.42km.

Creighton Mine is an underground nickel, copper, and platinum-group elements (PGE) mine. It is presently owned and operated by Vale Limited (formerly known as INCO) in the city of Greater Sudbury, Ontario, Canada. Open pit mining began in 1901, and underground mining began in 1906. The mine is situated in the Sudbury Igneous Complex (SIC) in its South Range geologic unit.

The mine is the source of many excavation-related seismic events, such as earthquakes and rock burst events. It is home to SNOLAB, and is currently the deepest nickel mine in Canada. Expansion projects to deepen the Creighton Mine are currently underway.

Since the first production of Creighton Mine in 1901, over 155 million tons of ore have been extracted. The mine was an open-pit mine from 1901 to 1908, and was transitioned to an underground mine in 1906. Currently, the mining methods used are bulk mining with the vertical retreat method (95% of production), and selective stoping with the mechanized cut-and-fill method (5% of ore production).

Creighton Mine's 2,100 m level is home to the world's deepest cleanest underground physics laboratory. Originally excavated for the Sudbury Neutrino Observatory (SNO), it has been expanded into a general-purpose facility called SNOLAB. The original laboratory, the SNO, was a heavy-water neutrino "Cherenkov detector". In 2004, a $7.5 million 3-story lab was constructed for the SNO on the grounds of the Creighton Mine, creating the foundation for the laboratories known today as SNOLAB. SNOLAB was initially constructed with $70 million in capital funds, and in 2020 received an additional $40.9 million in funding from Canada's Minister of Innovation.

According to. mining-technology/wikipedia


Brian (Collect & Edit) - WORLDKINGS (Source of photos : internet )

 

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