Type | Acidic dykes | Intermediate dykes | Basic dykes | ||||||||||
S. No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
Major oxides (%) | |||||||||||||
SiO2 | 77.35 | 73.92 | 76.7 | 74.22 | 75.6 | 54.1 | 55.87 | 59.37 | 60.62 | 49.1 | 52.71 | 48.59 | 52.89 |
TiO2 | 0.17 | 0.28 | 0.11 | 0.16 | 0.11 | 1.7 | 1.29 | 1.34 | 1.5 | 1.34 | 1.91 | 3.6 | 1.54 |
Al2O3 | 12.11 | 13.57 | 11.8 | 12.97 | 11.95 | 12.2 | 12.87 | 15.05 | 14.72 | 12.89 | 14.71 | 12.28 | 12.32 |
Fe2O3 | 1.69 | 1.6 | 1.01 | 1.24 | 1.24 | 9.3 | 8.3 | 7.96 | 6.92 | 9.13 | 12.02 | 15.41 | 9.12 |
MnO | 0.01 | 0.01 | 0.02 | 0.01 | 0.02 | 0.13 | 0.01 | 0.02 | 0.03 | 0.02 | 0.01 | 0.03 | 0.01 |
MgO | 0.1 | 0.16 | 0.18 | 0.17 | 0.14 | 6.5 | 7.14 | 3.22 | 2.57 | 8.67 | 6.65 | 5.66 | 7.2 |
CaO | 0.4 | 0.56 | 0.62 | 0.48 | 0.62 | 7.3 | 5.16 | 5.24 | 3.41 | 6.97 | 5.11 | 7.28 | 7.73 |
Na2O | 4.13 | 4.31 | 3.3 | 4.15 | 3.96 | 1.2 | 2.76 | 3.74 | 3.96 | 2.55 | 2.68 | 2.26 | 2.8 |
K2O | 3.35 | 4.42 | 5.2 | 4.82 | 4.11 | 1.94 | 1.79 | 2.38 | 3.3 | 0.86 | 0.79 | 1.02 | 1.12 |
P2O5 | 0.01 | 0.03 | 0.01 | 0.02 | 0.03 | 0.42 | 0.34 | 0.29 | 0.47 | 0.2 | 0.27 | 0.95 | 0.38 |
L.O.I. | 0.62 | 0.88 | 0.77 | 0.93 | 0.95 | 3.95 | 4.07 | 1 | 2.15 | 7.88 | 2.74 | 2.54 | 4.5 |
Total | 99.94 | 99.74 | 99.72 | 99.17 | 98.73 | 98.74 | 99.6 | 99.61 | 99.65 | 99.61 | 99.6 | 99.62 | 99.61 |
Trace elements (ppm) | |||||||||||||
V | 18 | 37 | 23 | 31 | 21 | 297 | 290 | 306 | 284 | 323 | 416 | 680 | 361 |
Cr | 13 | 16 | 15 | 15 | 14 | 16 | 41 | 19 | 17 | 695 | 295 | 147 | 354 |
Co | 6 | 13 | 9 | 16 | 13 | 35 | 37 | 30 | 22 | 43 | 52 | 55 | 40 |
Ni | 3 | 5 | 1 | 2 | 5 | 14 | 11 | 12 | 15 | 187 | 87 | 70 | 104 |
Cu | 1 | 2 | 1 | 4 | 8 | 35 | 31 | 38 | 21 | 40 | 23 | 15 | 11 |
Zn | 130 | 77 | 143 | 98 | 132 | 105 | 94 | 52 | 71 | 111 | 102 | 120 | 105 |
Rb | 68 | 142 | 89 | 141 | 105 | 38 | 36 | 41 | 62 | 32 | 30 | 23 | 27 |
Sr | 47 | 134 | 67 | 104 | 75 | 395 | 413 | 269 | 254 | 727 | 587 | 661 | 982 |
Y | 49 | 32 | 35 | 47 | 38 | 17 | 20 | 13 | 18 | 13 | 12 | 10 | 11 |
Nb | 24 | 25 | 23 | 24 | 23 | 16 | 10 | 11 | 13 | 8 | 6 | 9 | 8 |
Ba | 1160 | 1174 | 1347 | 1259 | 1306 | 852 | 948 | 972 | 967 | 286 | 398 | 339 | 245 |
Yb | 2 | 4 | 3 | 1 | 4 | 4 | 6 | 5 | 3 | 9 | 6 | 3 | 4 |
Hf | 9 | 8 | 7 | 7 | 8 | 10 | 6 | 9 | 11 | 7 | 7 | 6 | 8 |
Ta | 2 | 3 | 1 | 2 | 3 | 2 | 3 | 2 | 4 | 1 | 1 | 1 | 2 |
Pb | 13 | 24 | 15 | 23 | 18 | 13 | 19 | 11 | 17 | 11 | 10 | 6 | 3 |
Th | 13 | 25 | 12 | 22 | 14 | 5 | 3 | 6 | 9 | 3 | 3 | 3 | - |
U | 3.8 | 4.1 | 4.2 | 4 | 4.1 | 3.7 | 3.7 | 3.8 | 3.8 | 3.9 | 3.8 | 3.9 | 3.7 |
Zr | 218 | 264 | 226 | 261 | 223 | 94 | 187 | 104 | 110 | 58 | 47 | 26 | 22 |
CIPW norm | |||||||||||||
Q | 36.10 | 27.81 | 33.64 | 27.97 | 32.99 | 13.80 | 9.67 | 10.78 | 12.06 | 2.83 | 8.70 | 6.88 | 6.30 |