METODE PENAMPANG (Pemodelan dan Evaluasi Cadangan)
Metode Penampang
Dec 21, 2015
Metode penampang dibuat berdasarkan data titik bor pada software Surpac. Presentasi Mata kuliah pemodelan dan evaluasi Cadangan.
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METODE PENAMPANG(Pemodelan dan Evaluasi Cadangan)
Peta titik bor 3 Dimensi
Section 1
Perhitungan Section 1
HoleFrom To Depth %Ni
D x %Ni
Average Hole
Hle Width W x D W x D x%Ni Average
%Ni(m) (m) D (m) (%) (%) W (m) (m2) (%m2)
H113173 4 1 1.97 1.97
1.79 2525 49.25
1.75
4 5 1 1.31 1.31 25 32.755 6 1 2.09 2.09 25 52.25
Subtotal 3 5.37 75 134.25H11517 4 5 1 1.52 1.52 1.65 25 25 38
5 6 1 1.78 1.78 25 44.5Subtotal 2 3.3 50 82.5
H11617 0 0 0 0 0 0 25 0 0Subtotal 0 0 0 0
H11717 0 0 0 0 0 0 25 0 0Subtotal 0 0 0 0
H11817 0 0 0 0 0 0 25 0 0Subtotal 0 0 0 0
H11917 1 2 1 1.83 1.83 1.83 25 25 45.75Subtotal 1 1.83 25 45.75
Total 150 262.5
Section 2
Perhitungan Section 2
HoleFrom To Depth %Ni
D x %NiAverage
HoleHle
Width W x D W x D x%NiAverage %Ni
(m) (m) D (m) (%) (%) W (m) (m2) (%m2)
H114163 4 1 1.51 1.51
1.79 2525 37.75
1.831818182
4 5 1 2.19 2.19 25 54.755 6 1 1.67 1.67 25 41.75
Subtotal 3 5.37 75 134.25H11516 0 1 1 1.55 1.55 1.77 25 25 38.75
1 2 1 1.99 1.99 25 49.75Subtotal 2 3.54 50 88.5
H11616 0 0 0 0 0 0 25 0 0Subtotal 0 0 0 0
H11716 0 0 0 0 0 0 25 0 0Subtotal 0 0 0 0
H11816 0 0 0 0 0 0 25 0 0Subtotal 0 0 0 0
H11916 0 1 1 1.94 1.94 1.87 25 25 48.5 1 2 1 1.85 1.85 25 46.25 2 3 1 2.01 2.01 25 50.25 3 4 1 2.04 2.04 25 51 4 5 1 1.67 1.67 25 41.75 5 6 1 1.73 1.73 25 43.25
Subtotal 6 11.24 150 281Total 275 503.75
Section 3
Perhitungan Section 3
HoleFrom To Depth %Ni
D x %Ni
Average Hole
Hle Width W x D W x D x%Ni Average
%Ni(m) (m) D (m) (%) (%) W (m) (m2) (%m2)
H11415 0 0 0 0 0 0 25 0 0
2.203333333
Subtotal 0 0 0 0H11515 0 0 0 0 0 0 25 0 0
Subtotal 0 0 0 0 2 3 1 1.8 1.8 25 45 3 4 1 2.89 2.89 25 72.25 4 5 1 3.66 3.66 25 91.5 5 6 1 2.64 2.64 25 66 6 7 1 1.87 1.87 25 46.75 7 8 1 1.77 1.77 25 44.25
H11615 8 9 1 1.5 1.5 2.304286 25 25 37.5
Subtotal 7 16.13 175 403.25H11715 2 3 1 1.66 1.66 0 25 25 41.5
Subtotal 1 1.66 25 41.5H11815 0 0 0 0 0 0 25 0 0
Subtotal 0 0 0 0H11915 5 6 1 2.04 2.04 2.04 25 25 51
Subtotal 1 2.04 25 51Total 225 495.75
Section 4
Perhitungan Section 4
HoleFrom To Depth %Ni
D x %Ni
Average Hole
Hle Width W x D W x D x%Ni Average
%Ni(m) (m) D (m) (%) (%) W (m) (m2) (%m2)
H11414
0 1 1 1.56 1.56
1.816 25
25 39
2.045263158
1 2 1 1.77 1.77 25 44.252 3 1 2.2 2.2 25 553 4 1 2.01 2.01 25 50.254 5 1 1.54 1.54 25 38.5
Subtotal 5 9.08 125 227H11514 3 4 1 1.86 1.86 2.1675 25 25 46.5
4 5 1 3.1 3.1 25 77.5 5 6 1 1.88 1.88 25 47 6 7 1 1.83 1.83 25 45.75
Subtotal 4 8.67 100 216.75H11614 1 2 1 2.54 2.54 2.254 25 25 63.5
2 3 1 2.91 2.91 25 72.75 3 4 1 2.2 2.2 25 55 4 5 1 1.92 1.92 25 48 5 6 1 2.81 2.81 25 70.25 6 7 1 1.93 1.93 25 48.25 7 8 1 1.92 1.92 25 48 8 9 1 1.97 1.97 25 49.25 9 10 1 2.28 2.28 25 57 10 11 1 2.06 2.06 25 51.5
Subtotal 10 22.54 250 563.5
Sambungan Section 4…..H1171
4 4 5 1 2.77 2.77 2.2975 25 25 69.25
5 6 1 2.16 2.16 25 54 6 7 1 2.53 2.53 25 63.25 7 8 1 2.93 2.93 25 73.25 8 9 1 2.54 2.54 25 63.5 9 10 1 2.41 2.41 25 60.25 10 11 1 1.09 1.09 25 27.25 11 12 1 1.95 1.95 25 48.75
Subtotal 8 18.38 200 459.5H1181
4 2 3 1 1.91 1.91 1.701111 25 25 47.75
3 4 1 2.12 2.12 25 53 4 5 1 1.48 1.48 25 37 5 6 1 1.33 1.33 25 33.25 6 7 1 1.7 1.7 25 42.5 7 8 1 1.9 1.9 25 47.5 8 9 1 1.34 1.34 25 33.5 9 10 1 1.67 1.67 25 41.75 10 11 1 1.86 1.86 25 46.5
Subtotal 9 15.31 225 382.75H1191
4 6 7 1 2.04 2.04 1.87 25 25 51
7 8 1 1.7 1.7 25 42.5Subtotal 2 3.74 50 93.5
Total 950 1943
Section 5
Perhitungan Section 5
HoleFrom To Depth %Ni
D x %Ni
Average Hole
Hle Width W x D W x D x%Ni Average
%Ni(m) (m) D (m) (%) (%) W (m) (m2) (%m2)
H11413 5 6 1 2.24 2.24 2.24 25 25 56
1.897241379
Subtotal 1 2.24 25 56H11513 7 8 1 1.53 1.53 1.515 25 25 38.25
8 9 1 1.5 1.5 25 37.5Subtotal 2 3.03 50 75.75
H11613 5 6 1 1.68 1.68 1.8 25 25 42 6 7 1 1.97 1.97 25 49.25 7 8 1 1.61 1.61 25 40.25 8 9 1 1.87 1.87 25 46.75 9 10 1 1.87 1.87 25 46.75
Subtotal 5 9 125 225
H11713 0 1 1 2.17 2.17 1.835556 25 25 54.25
1 2 1 2.59 2.59 25 64.75 2 3 1 2.42 2.42 25 60.5 3 4 1 2.25 2.25 25 56.25 4 5 1 1.91 1.91 25 47.75 5 6 1 0.93 0.93 25 23.25 6 7 1 0.99 0.99 25 24.75 7 8 1 1.76 1.76 25 44 8 9 1 1.5 1.5 25 37.5
Subtotal 9 16.52 225 413
Sambungan Section 5…..H11813 4 5 1 3.05 3.05 0 25 25 76.25
Subtotal 1 3.05 25 76.25
H11913 4 5 1 1.65 1.65 1.925455 25 25 41.25
5 6 1 1.95 1.95 25 48.75
6 7 1 2.97 2.97 25 74.25
7 8 1 2.4 2.4 25 60
8 9 1 2.08 2.08 25 52
9 10 1 2.46 2.46 25 61.5
10 11 1 1.9 1.9 25 47.5
11 12 1 1.69 1.69 25 42.25
12 13 1 1.3 1.3 25 32.5
13 14 1 1.25 1.25 25 31.25
14 15 1 1.53 1.53 25 38.25
Subtotal 11 21.18 275 529.5
Total 725 1375.5
Area conversion factor (50)(50)
2500 ft3/ln2
Tonnage factor 14,0 ft3/ton Total tonnage 415291,07Average grade 56,63%
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