#1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 Level 1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 #12 #13 #14 #15 #16 #17 #18 #19 #20 #21 #22 Level 2 0.0 0.0 0.0 0.0 G₂ 0.0 0.0 0.0 #23 #24 #25 #26 #27 #28 #29 #30 #31 #32 #33 Level 3 0.0 0.0 0.0 0.0 0.0 0.0 #34 #35 #36 #37 #38 #39 #40 #41 #42 #43 #44 Level 4 0.0 0.0 0.0 G4 0.0 0.0 0.0 0.0 #45 #46 #47 #48 #49 #50 #51 #52 #53 #54 #55 Level 5 0.0 0.0 0.0 G5 0.0 0.0 0.0 0.0 0.0 #56 #57 #58 #59 #60 #61 #62 #63 #64 #65 #66 Level 6 0.0 0.0 0.0 0.0 0.0 G6 0.0 0.0 0.0 0.0 0.0
#1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 Level 1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 #12 #13 #14 #15 #16 #17 #18 #19 #20 #21 #22 Level 2 0.0 0.0 0.0 0.0 G₂ 0.0 0.0 0.0 #23 #24 #25 #26 #27 #28 #29 #30 #31 #32 #33 Level 3 0.0 0.0 0.0 0.0 0.0 0.0 #34 #35 #36 #37 #38 #39 #40 #41 #42 #43 #44 Level 4 0.0 0.0 0.0 G4 0.0 0.0 0.0 0.0 #45 #46 #47 #48 #49 #50 #51 #52 #53 #54 #55 Level 5 0.0 0.0 0.0 G5 0.0 0.0 0.0 0.0 0.0 #56 #57 #58 #59 #60 #61 #62 #63 #64 #65 #66 Level 6 0.0 0.0 0.0 0.0 0.0 G6 0.0 0.0 0.0 0.0 0.0
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
Shown in the image is a vertical section of a 66 block grid of a gold mine deposit. Each block is
identified with a number and a gold (Au) grade in g/t. As shown, most blocks contain non-
valuable or zero ore-grade (G=0). However, the ore-grade of highlighted block #17 is G2= 1.4
g/t, and similarly the ore grades of blocks #28, #39, #50 and #61 are in turn: G3 = 1.2, G4 = 2.3, G5 = 2.8, and G6 = 2.9 g/t. Evaluate the mining methods (o/c or u/g) which should be selected based on economic considerations only.

Transcribed Image Text:#1
#2
#3
#4
#5
#6
#7
#8
#9
#10
#11
Level 1
0.0
0.0
0.0
0.0
0.0
0.0 0.0
#12
#13 #14
#15
#16
#17
#18
#19
#20
#21 #22
Level 2
0.0
0.0
0.0
0.0
G₂
0.0
0.0 0.0
#23
#24 #25
#26
#27 #28
#29
#30
#31
#32
#33
Level 3
0.0
0.0
0.0
0.0
0.0
0.0
#34
#35
#36
#37
#38
#39
#40
#41
#42 #43
#44
Level 4
0.0
0.0
0.0
G4
0.0
0.0
0.0
0.0
#45 #46 #47
#48
#49
#50
#51
#52
#53
#54 #55
Level 5
0.0
0.0
0.0
G5
0.0
0.0
0.0
0.0
0.0
#56
#57
#58
#59
#60
#61
#62
#63
#64
#65
#66
Level 6
0.0
0.0
0.0
0.0
0.0
G6
0.0
0.0
0.0
0.0
0.0
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