153
Figure 5. Yearly ore production schedule for the OPUG mining option.
Figure 6. Yearly rock production schedule for the OPUG mining option.
body, the ore extraction schedule in the first year of the mine life satisfies the full capacity of
the plant requirement of 8.0 Mt.
The average grade of Cu ore processed in each period for the combined open pit and
underground mining option with a crown pillar is shown in Figure 7. In Figure 7, the yearly
~
" = =
25
20
.s 15
6
5
Period (years)
Period (years)