Figure 1 shows a very simplistic version of a copper mineralization associated to a zone of fractures within a granodiorite intrusive.
Figure 1. Ore deposit model of a copper mineralization associated to a tectonic zone within a granodiorite intrusive.
Table 1 shows the results of a random sampling using existing access to the top of the intrusive.
Table 1. Chemical composition of the sampling of the granodiorite intrusive.
Sample
Easting
Northing
SiO2
TiO2
Al203
Fe2O3
MgO
CaO
K2O
Na2O
P2O5
259021
845962.7
833189
56.00
2.20
6.00
3.62
5.11
2.08
5.03
7.08
3.00
259022
831978.5
859092
57.00
1.25
4.00
2.54
5.40
2.19
5.08
7.19
3.74
259023
857644.3
846310
55.00
2.05
7.00
3.86
5.55
2.29
5.19
7.29
3.46
259024
840369.6
833920
62.00
2.19
0.00
2.47
5.63
2.29
5.29
7.29
3.80
259025
833367.4
857854
56.04
1.14
6.00
3.66
5.69
2.43
5.29
7.43
3.14
259026
841526.8
837288
58.36
1.48
2.00
2.75
5.89
2.45
5.43
7.45
3.70
259027
850152.3
854634
61.00
1.60
1.00
2.26
5.95
2.49
5.45
7.49
3.17
259028
836406.1
847121
57.34
1.58
4.02
2.94
6.25
2.54
5.49
7.54
3.26
259029
893494.7
891521
62.00
1.25
0.66
2.21
6.28
2.55
5.54
7.55
3.08
259030
898079.8
900849
61.00
1.60
1.85
3.19
6.44
2.60
5.55
7.60
3.96
259031
917124.2
893796
61.00
2.05
1.49
2.55
6.46
2.63
5.60
7.63
3.66
259032
904564.7
893086
59.02
1.15
1.04
2.70
6.47
2.65
5.63
7.65
3.85
259033
900474.9
898141
59.00
1.36
2.47
3.53
6.49
2.68
5.65
7.68
3.44
259034
894560.4
895311
59.00
1.61
2.34
3.56
6.82
2.71
5.68
7.71
3.36
259035
913232.2
903356
57.80
2.15
3.09
2.63
6.98
2.86
5.71
7.86
3.45
259036
893128.5
902967
56.44
1.15
6.00
3.48
6.98
2.91
5.86
7.91
3.40
259037
892202.8
894592
59.00
1.41
2.30
2.59
7.18
2.99
5.91
7.99
3.13
259038
913071.1
897870
57.30
1.06
4.00
3.62
7.22
3.02
5.99
8.02
3.82
259039
906249.3
907340
58.09
1.71
3.50
2.51
7.74
3.10
6.02
8.10
3.66
259040
916724.1
891607
57.00
1.16
4.00
3.27
7.83
3.15
6.10
8.15
3.83
259041
909848.3
915457
60.00
1.47
1.44
2.47
7.89
3.38
6.15
8.38
3.27
259042
915608.1
915306
57.47
1.83
3.00
3.57
7.95
3.56
6.38
8.56
3.28
259043
871460
863020
55.66
1.03
7.00
2.23
7.96
3.58
6.56
8.58
3.08
259044
877894.5
886973
59.00
1.13
2.00
3.33
8.07
3.68
6.58
8.68
3.99
259045
886538.3
888754
59.00
1.80
2.80
2.36
8.10
3.71
6.68
8.71
3.60
259046
860434.9
872223
53.00
1.36
5.00
3.16
8.28
3.82
6.71
8.82
3.90
259047
885897.4
864158
57.00
1.43
4.00
2.09
8.30
3.88
6.82
8.88
3.91
259048
867351
861364
54.30
2.16
4.00
3.98
8.57
3.90
6.88
8.90
3.83
259049
860971.4
864924
54.20
1.77
3.36
3.72
8.59
3.91
6.90
8.91
3.82
259050
866588.3
860513
58.50
1.00
2.00
3.10
8.83
1.00
6.91
2.00
3.65
Sample
Easting
Northing
Cu
As
Pb
Co
Ni
Sc
L.O.I.
Other
259021
845962.7
833189
0.00191
0.00199
0.00002
0.00002
0.00002
0.01936
6.19
9.88
259022
831978.5
859092
0.00190
0.00198
0.00003
0.00004
0.00005
0.01763
8.16
11.61
259023
857644.3
846310
0.00188
0.00196
0.00003
0.00010
0.00012
0.02056
5.09
8.31
259024
840369.6
833920
0.00182
0.00190
0.00006
0.00014
0.00017
0.00013
5.97
9.03
259025
833367.4
857854
0.00171
0.00179
0.00006
0.00015
0.00018
0.01834
6.60
9.18
259026
841526.8
837288
0.00168
0.00176
0.00004
0.00022
0.00026
0.01058
8.01
10.48
259027
850152.3
854634
0.00158
0.00166
0.00005
0.00023
0.00027
0.00341
7.40
9.59
259028
836406.1
847121
0.00156
0.00164
0.00003
0.00025
0.00030
0.01372
6.97
9.03
259029
893494.7
891521
0.00138
0.00146
0.00005
0.00027
0.00032
0.00035
7.00
8.88
259030
898079.8
900849
0.00115
0.00123
0.00002
0.00027
0.00033
0.00085
4.00
6.22
259031
917124.2
893796
0.00110
0.00117
0.00005
0.00030
0.00036
0.00119
4.00
6.92
259032
904564.7
893086
0.00102
0.00110
0.00002
0.00032
0.00038
0.00799
8.00
9.84
259033
900474.9
898141
0.00099
0.00107
0.00002
0.00032
0.00039
0.00725
5.00
7.69
259034
894560.4
895311
0.00091
0.00099
0.00004
0.00034
0.00041
0.00623
4.00
7.20
259035
913232.2
903356
0.00086
0.00094
0.00003
0.00036
0.00043
0.01060
5.00
7.47
259036
893128.5
902967
0.00071
0.00079
0.00001
0.00043
0.00052
0.01361
3.00
5.88
259037
892202.8
894592
0.00068
0.00076
0.00001
0.00045
0.00054
0.00629
5.00
7.51
259038
913071.1
897870
0.00065
0.00073
0.00005
0.00049
0.00059
0.01008
2.00
5.94
259039
906249.3
907340
0.00063
0.00071
0.00005
0.00051
0.00061
0.00812
1.50
5.57
259040
916724.1
891607
0.00060
0.00068
0.00004
0.00055
0.00066
0.01036
1.56
5.50
259041
909848.3
915457
0.00055
0.00062
0.00004
0.00058
0.00069
0.00220
2.00
5.55
259042
915608.1
915306
0.00054
0.00062
0.00004
0.00069
0.00083
0.00707
1.23
4.39
259043
871460
863020
0.00049
0.00057
0.00001
0.00078
0.00094
0.01274
1.12
4.32
259044
877894.5
886973
0.00045
0.00053
0.00004
0.00079
0.00095
0.00172
0.35
3.53
259045
886538.3
888754
0.00043
0.00051
0.00004
0.00084
0.00101
0.00157
0.08
3.24
259046
860434.9
872223
0.00029
0.00037
0.00003
0.00085
0.00103
0.00855
1.25
5.96
259047
885897.4
864158
0.00029
0.00037
0.00004
0.00091
0.00109
0.00642
0.08
3.68
259048
867351
861364
0.00019
0.00027
0.00001
0.00094
0.00113
0.00461
0.05
3.46
259049
860971.4
864924
0.00008
0.00016
0.00003
0.00095
0.00114
0.00149
0.89
4.81
259050
866588.3
860513
0.00003
0.00011
0.00005
0.00096
0.00115
0.00099
6.94
13.01
The initial data respond to the following pre-established conditions:
Is a close system, meaning that the sum of all the values is equal or very close to 100%
There are no zero values present (I will deal with zero values in a separate example to avoid complicating the initial model).
There are no statistical outliers (hurricane values) present.
There is a big difference between the concentRations of the major oxides with respect to the trace elements.
As shown in Figs. 2-4, there are embedded positive and significant correlation between Cu and As, Ni and Co, and MgO and K2O.
Finally, I introduced significant negative correlations between K2O and CaO (Fig. 5), SiO2 and Al2O3 (Fig 6), K2O and Cu (Fig. 7), Na2O and K2O (Fig. 8), and Co with Cu (Fig 9).
According to these embedded conditions, any correlation analysis must give us two coefficients (Range Correlation Coefficient or RCC):
Equation 1
Range Correlation Coefficient type A for the initial data, according to the embedded correlations.
Equation 2
Range Correlation Coefficient type B for the initial data, according to the embedded correlations.