Table 1.
Information Value and Frequency Ratio scores various classes of evidential layers used.
EVs | Class | Total Number of Pixels | Au occurrence pixels | IV | FR |
---|---|---|---|---|---|
Analytic Signal Layer (nT m−1) | 0.00–37.42 | 4821927 | 1525 | −0.0209 | 0.95 |
37.42–112.24 | 1848453 | 600 | −0.0096 | 0.98 | |
112.24–217.00 | 600711 | 225 | 0.0525 | 1.13 | |
217.00–366.65 | 227784 | 100 | 0.1215 | 1.32 | |
366.65–613.58 | 91256 | 50 | 0.2177 | 1.65 | |
613.58–1.908.08 | 18173 | 25 | 0.6175 | 4.15 | |
Lineament Density Layer (km km−2) | 0.00–17.99 | 2622254 | 1100 | 0.1017 | 1.26 |
17.99–48.98 | 388703 | 200 | 0.1904 | 1.55 | |
48.98–79.98 | 611121 | 250 | 0.0908 | 1.23 | |
79.98–115.97 | 623103 | 350 | 0.2285 | 1.69 | |
115.97–254.94 | 3363123 | 625 | −0.2518 | 0.56 | |
Uranium Concentration Layer (ppm) | 14.88–18.47 | 3272707 | 575 | −0.2765 | 0.53 |
18.47–21.61 | 281409 | 75 | −0.0955 | 0.8 | |
21.61–24.45 | 400908 | 225 | 0.2279 | 1.69 | |
24.45–26.99 | 428088 | 125 | −0.0559 | 0.88 | |
26.99–29.30 | 582099 | 300 | 0.1909 | 1.55 | |
29.30–31.25 | 923042 | 475 | 0.1902 | 1.55 | |
31.25–33.94 | 1720051 | 750 | 0.1183 | 1.31 | |
Potassium Concentration Layer (%) | 16.08–18.06 | 2041099 | 100 | −0.8308 | 0.15 |
18.06–20.39 | 159804 | 125 | 0.3723 | 2.36 | |
20.39–22.85 | 172891 | 25 | −0.3608 | 0.44 | |
22.85–25.52 | 256768 | 25 | −0.5326 | 0.29 | |
25.52–27.91 | 398344 | 100 | −0.1212 | 0.76 | |
27.91–29.76 | 692986 | 375 | 0.2123 | 1.63 | |
29.76–31.13 | 1380288 | 375 | −0.0869 | 0.82 | |
31.13–33.53 | 2506124 | 1400 | 0.2262 | 1.68 | |
Uranium–Thorium Ratio Layer | 0.46–0.67 | 1361495 | 300 | −0.1782 | 0.66 |
0.67–0.88 | 955845 | 350 | 0.0424 | 1.1 | |
0.88–1.05 | 3480740 | 1175 | 0.0071 | 1.02 | |
1.05–1.21 | 821283 | 275 | 0.0036 | 1.01 | |
1.21–1.44 | 434336 | 100 | −0.1591 | 0.69 | |
1.44–1.70 | 224626 | 75 | 0.0023 | 1.01 | |
1.70–2.04 | 329979 | 250 | 0.3582 | 2.28 | |
Potassium–Thorium Ratio Layer (%/ppm) | 0.50–0.67 | 1095467 | 75 | −0.6858 | 0.21 |
0.67–0.88 | 584934 | 225 | 0.0638 | 1.16 | |
0.88–1.05 | 2943464 | 1000 | 0.0099 | 1.02 | |
1.05–1.23 | 1032376 | 575 | 0.2246 | 1.68 | |
1.23–1.47 | 520283 | 175 | 0.0055 | 1.01 | |
1.47–1.72 | 445726 | 75 | −0.2953 | 0.51 | |
1.72–2.02 | 986054 | 400 | 0.0869 | 1.22 | |
Geological Layer | G2b | 3805174 | 1375 | 0.037 | 1.09 |
comp-gn | 508859 | 0 | 0 | 0 | |
G3 | 287085 | 0 | 0 | 0 | |
G4 | 3007186 | 1150 | 0.0616 | 1.15 |