432
Table 10. Deposit characteristics of the traditional phases.
MATERIAL TYPE
PHASE 1
BLOCKS
TONNAGE
OUNCES
AVG GRADE
TOTAL
32,111
16,055,500
–
–
WASTE
14,645
7,322,500
–
–
ORE
17,466
8,733,000
718,605
0.082 oz/t
MILL
7,993
3,996,500
557,155
0.139 oz/t
LEACH
9,473
4,736,500
161,450
0.034 oz/t
MATERIAL TYPE
PHASE 2
BLOCKS
TONNAGE
OUNCES
AVG GRADE
TOTAL
41,199
20,599,500
–
–
WASTE
20,679
10,339,500
–
–
ORE
20,520
10,260,000
806,635
0.079 oz/t
MILL
15,421
7,710,500
717,445
0.093 oz/t
LEACH
5,099
2,549,500
89,190
0.035 oz/t
MATERIAL TYPE
PHASE 3
BLOCKS
TONNAGE
OUNCES
AVG GRADE
TOTAL
64,638
32,319,000
–
–
WASTE
35,260
17,630,000
–
–
ORE
29,378
14,689,000
763,485
0.052 oz/t
MILL
15,180
7,590,000
519,105
0.068 oz/t
LEACH
14,198
7,099,000
244,380
0.034 oz/t
MATERIAL TYPE
PHASE 4
BLOCKS
TONNAGE
OUNCES
AVG GRADE
TOTAL
107,763
53,836,500
–
–
WASTE
89,865
44,932,500
–
–
ORE
17,808
8,904,000
334,725
0.038 oz/t
MILL
3,841
1,920,500
108,325
0.056 oz/t
LEACH
13,967
6,983,500
226,400
0.032 oz/t
the earlier years of the production in order to prevent the loss in value occurring naturally by the
discount factor. Hence, it can be seen clearly in Figure 4 and Figure 6 that both mill and leach
average grades are significantly higher in the earlier periods and gradually decrease until they
become equal to the minimum yearly average grade required by the process destination. At the
Figure 3. Traditional phase—yearly processed tonnage and the average grade at the mill.
3,500,000
0.180
3,000,000
2,500,000
~
2,000,000
~ z 1,500,000
~
,,
~
, \ .....
!"'
,'/ /. ,,
1\
,
'
r--..
~ ,
\ \
........
,, -
0.160
0.1<10
0.120
0.100 ~
0.080
" " ~
0.060 <
1,000,000
500,000
I
0.0<10
0.020
0.000
201.9
2021
20tl
2022
2023
2024
2025
202ii
2027
2028
PEfliODS
-
Mill lONNAGE
- - - AVGtAILLGRADE
--..-Mill CAPAOTY
-..... MINIMUM GRADE REQUIRED