S. No. | Rb1 | Rb2 | Rb3 | Rb4 | Rb5 | Rb6 | Rb7 | Rb8 | Rb9 | Rb10 |
SiO2wt% | 44.9 | 47.6 | 45.98 | 45.97 | 45.41 | 46.68 | 47.46 | 46.57 | 47.3 | 46.23 |
TiO2 | 2.8 | 2.5 | 2.1 | 2.76 | 2.44 | 2.6 | 1.3 | 1.6 | 1.63 | 1.44 |
Al2O3 | 12.3 | 12.0 | 9.6 | 11.9 | 11.97 | 12.5 | 12.8 | 13.6 | 13.33 | 13.24 |
Fe2O3 | 13.1 | 12.1 | 10.4 | 12.7 | 11.8 | 11.8 | 10.8 | 12.9 | 13 | 11.8 |
MnO | 0.22 | 0.23 | 0.18 | 0.21 | 0.26 | 0.21 | 0.17 | 0.19 | 0.19 | 0.17 |
MgO | 10 | 10.6 | 8.7 | 10.3 | 11.1 | 9.77 | 9.6 | 8.9 | 9.98 | 8.3 |
CaO | 9.7 | 10.1 | 17.8 | 10.3 | 10.2 | 9.98 | 10.9 | 9.4 | 9.3 | 12.85 |
Na2O | 3.43 | 2.76 | 1.97 | 2.86 | 3.12 | 3.22 | 3.54 | 2.85 | 2.47 | 3.34 |
K2O | 0.97 | 1.2 | 0.94 | 0.81 | 1.07 | 0.9 | 0.64 | 1.62 | 0.63 | 0.87 |
P2O5 | 0.24 | 0.28 | 0.32 | 0.41 | 0.52 | 0.47 | 0.39 | 0.53 | 0.73 | 0.32 |
LOI | 1.36 | 1.17 | 1.64 | 1.84 | 2.21 | 2.24 | 2.32 | 1.95 | 2.12 | 1.77 |
Sum | 99.02 | 100.54 | 99.63 | 100.06 | 100.10 | 100.37 | 99.92 | 100.11 | 100.7 | 100.33 |
Mg # | 60.2 | 63.4 | 62.9 | 61.6 | 63.5 | 62.1 | 63.8 | 57.8 | 60.3 | 58.2 |
Na2O/K2O | 3.4 | 2.16 | 2.1 | 3.21 | 2.92 | 3.58 | 5.53 | 1.76 | 3.92 | 3.84 |
Al2O3/TiO2 | 4.39 | 4.8 | 4.57 | 4.31 | 4.6 | 5 | 9.84 | 8.5 | 8.18 | 9.19 |
Cr ppm | 321 | 384 | 293 | 360 | 385 | 292 | 225 | 286 | 296 | 270 |
Co | 56 | 53 | 43 | 50 | 48 | 38 | 21 | 40 | 40 | 46 |
Ni | 248 | 286 | 228 | 273 | 295 | 210 | 214 | 275 | 280 | 273 |
Cu | 63 | 65 | 61 | 58 | 49 | 43 | 63 | 69 | 69 | 64 |
Zn | 126 | 118 | 100 | 124 | 117 | 118 | 84 | 102 | 104 | 96 |
Sr | 796 | 812 | 683 | 1019 | 1093 | 700 | 534 | 631 | 626 | 561 |
Y | 19 | 19 | 15 | 19 | 18 | 18 | 13 | 16 | 16 | 15 |
Nb | 63 | 58 | 48 | 63 | 55 | 55 | 12 | 18 | 18 | 19 |
La | 36 | 35 | 25 | 33 | 34 | 32 | 13 | 21 | 21 | 19 |
Ce | 57 | 59 | 47 | 56 | 52 | 41 | 32 | 12 | 14 | 14 |
Pb | 3 | 2 | 5 | 4 | 5 | 3 | 6 | 14 | 9 | 6 |
Ba | 439 | 385 | 263 | 472 | 364 | 471 | 251 | 196 | 198 | 412 |
Zr | 298 | 294 | 311 | 298 | 250 | 210 | 117 | 175 | 159 | 183 |
Cr/Ni | 1.29 | 1.34 | 1.28 | 1.31 | 1.3 | 1.39 | 1.05 | 1.04 | 1.05 | 0.98 |
Zr/Nb | 4.73 | 5.06 | 6.48 | 4.73 | 4.54 | 3.81 | 9.75 | 9.72 | 8.83 | 9.63 |
Zr/Y | 16.55 | 15.47 | 20.73 | 15.68 | 13.88 | 11.66 | 9 | 10.93 | 9.93 | 12.2 |
Y/Nb | 0.31 | 0.32 | 0.31 | 0.3 | 0.33 | 0.33 | 1.08 | 0.89 | 0.89 | 0.79 |