(Solved): A section of a copper porphyry ore body is as shown. Determine the most profitable final pit outline ...

A section of a copper porphyry ore body is as shown. Determine the most profitable final pit outline using Lerchs-Grossman 2D given that the cut-off grade of 0.45% Cu. 1 block has dimensions of 16m x 16m x 16m (HxLxW). The cost of mining a block waste is $50 and that a value of a block of ore is approximated to be $100 x (grade expressed in %). Keep the pit angle at 45 degrees.
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