S. No. | RB11 | RB12 | RB13 | RB14 | RB15 | RB16 | RB17 | RB18 | RB19 | RB20 |
SiO2wt% | 46.83 | 45.62 | 47.64 | 46.75 | 47.4 | 47.11 | 47.64 | 46.8 | 49.32 | 49.8 |
TiO2 | 1.5 | 1.87 | 1.64 | 1.71 | 1.68 | 1.87 | 2.02 | 1.95 | 0.51 | 0.7 |
Al2O3 | 13.28 | 12.96 | 13.4 | 13.72 | 11.78 | 12.45 | 13.8 | 13.15 | 12.9 | 13.64 |
Fe2O3 | 11.79 | 13.54 | 12.6 | 14.38 | 12.84 | 14.75 | 14.47 | 14.89 | 10.7 | 13.3 |
MnO | 0.18 | 0.19 | 0.18 | 0.21 | 0.19 | 0.22 | 0.21 | 0.22 | 0.15 | 0.15 |
MgO | 8.1 | 8.23 | 7.8 | 7.86 | 7.27 | 11.7 | 6.55 | 7.5 | 7.76 | 6.2 |
CaO | 12 | 10.87 | 10.1 | 9.87 | 13.21 | 9.4 | 11.53 | 12.1 | 11.78 | 9.4 |
Na2O | 2.56 | 3.14 | 2.97 | 3.25 | 2.56 | 1.36 | 2.36 | 1.57 | 3.26 | 3.21 |
K2O | 1.66 | 0.56 | 1.56 | 0.53 | 0.62 | 0.62 | 0.71 | 0.62 | 1.9 | 0.7 |
P2O5 | 0.62 | 0.45 | 0.49 | 0.38 | 0.64 | 0.21 | 0.32 | 0.53 | 0.48 | 0.42 |
LOI | 1.36 | 2.14 | 1.16 | 1.43 | 2.15 | 1.12 | 0.75 | 0.32 | 1.79 | 2.21 |
Sum | 99.88 | 99.57 | 99.54 | 100.09 | 100.34 | 100.81 | 100.36 | 99.65 | 100.6 | 99.73 |
Mg # | 57.6 | 54.6 | 55.1 | 52 | 52.8 | 61.1 | 47.3 | 49.9 | 51.6 | 48 |
Na2O/K2O | 1.54 | 5.61 | 1.9 | 6.13 | 4.13 | 2.19 | 3.32 | 2.53 | 1.71 | 4.64 |
Al2O3/TiO2 | 8.85 | 8.18 | 8.17 | 7.33 | 7 | 6.65 | 6.83 | 6.74 | 25.29 | 19.48 |
Cr ppm | 260 | 310 | 290 | 376 | 324 | 371 | 261 | 306 | 35 | 49 |
Co | 39 | 49 | 47 | 67 | 54 | 60 | 53 | 68 | 18 | 46 |
Ni | 265 | 294 | 255 | 364 | 320 | 344 | 296 | 357 | 160 | 167 |
Cu | 75 | 70 | 63 | 79 | 69 | 63 | 73 | 89 | 14 | 83 |
Zn | 97 | 101 | 101 | 114 | 105 | 116 | 112 | 119 | 60 | 101 |
Sr | 1249 | 536 | 629 | 531 | 1351 | 525 | 733 | 530 | 389 | 449 |
Y | 16 | 16 | 17 | 17 | 16 | 17 | 19 | 18 | 17 | 34 |
Nb | 17 | 13 | 23 | 27 | 25 | 23 | 36 | 28 | 26 | 22 |
La | 19 | 20 | 23 | 23 | 20 | 25 | 27 | 23 | 16 | 25 |
Ce | 15 | 16 | 21 | 20 | 23 | 21 | 28 | 25 | 15 | 50 |
Pb | 8 | 11 | 9 | 12 | 10 | 11 | 5 | 11 | 14 | 8 |
Ba | 306 | 318 | 206 | 258 | 215 | 617 | 1560 | 302 | 928 | 232 |
Zr | 334 | 151 | 138 | 126 | 183 | 151 | 189 | 154 | 160 | 260 |
Cr/Ni | 0.98 | 1.05 | 1.14 | 1.03 | 1.01 | 1.07 | 0.87 | 0.85 | 0.22 | 0.3 |
Zr/Nb | 20.17 | 11.61 | 6 | 4.66 | 7.32 | 6.56 | 5.16 | 5.5 | 6.15 | 11.81 |
Zr/Y | 20.87 | 9.43 | 8.11 | 7.41 | 11.43 | 8.88 | 9.94 | 8.55 | 9.41 | 7.64 |
Y/Nb | 0.94 | 1.23 | 0.74 | 0.63 | 0.64 | 0.74 | 0.53 | 0.64 | 0.65 | 1.54 |