At the same time a few opencuts
and at least two more shafts existed as well, and one of the shafts, the Valencia, penetrated a large outcropping ore mass to a depth of about 7 meters.
was cleared of debris and untouched in-place vein material was exposed.
This includes Macmahon exiting its non-core activities in Southeast Asia and reducing exposure to low-margin opencut
During the seven years that the Kintore Opencut
was worked, the list of species from Australia's famous Broken Hill deposit and the knowledge of the Broken Hill orebody were greatly expanded.
Burton has about 12 years of opencut
reserves but mine life could be doubled if the underground resource were to be developed (MM, December 1998, pp.288-293).
Western Mining Corporation (WMC) commenced a small opencut
on the deposit in 1990.
Fimiston reports: "The inferred opencut
resources in this province are in the billions of tonnes of vanadium ore.