Mine A

Face 1

Mine A

Face 2

Mine A

Face 3

Mine A

Face 4

Mine B

Face 1

Mine B

Face 2

Mine C

Face 3

Mine D

Face 1-3

Bench height (m)

10

15

13

15

15

15

10

10

Bench angle (deg.)

70

70

70

70

70

70

70

70

Hole spacing (m)

4.0

3.8

4.0

4.0

5.5

6.0

5.0

2.0

Burden (m)

4.1

3.6

4.2

4.0

6.0

6.0

5.0

2.5

Hole diameter (mm)

110

90

110

90

140

140

130

75

Powder factor (g/t)

91.7

77.5

92.2

52.8

112

102

66.7

158