Case Study – Onaping Depth
For the purposes of this paper, the authors have chosen to examine the impact of pre-concentration on the
extraction of Falconbridge’s Onaping Depth deposit, located in the Sudbury Basin in Ontario. In the late 1990’s,
Falconbridge was considering the mining of this resource but has chosen to postpone its development
indefinitely. The safe extraction of the ore at these depths has proven itself to be too risky at this time due to
ground stability issues