Geography, 05.10.2019 00:00 dawsoncarlisle
Assume an underground mining cost of $25.5/ton ore for an orebody. assume open pit mining costs at $0.0028/kg ore removal and $0.0035/kg waste removal. determine the stripping ratio for an open operation that results in break-even cost differential between the two mining methods.
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Assume an underground mining cost of $25.5/ton ore for an orebody. assume open pit mining costs at $...
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