S. No. | RB21 | RB22 | RB23 | RB24 | RB25 | RB26 | RB27 | RB28 | RB29 | RB30 |
SiO2wt% | 49.87 | 45.4 | 45.74 | 44.67 | 43.13 | 43.96 | 41.79 | 45.85 | 46.07 | 45.1 |
TiO2 | 0.44 | 0.33 | 0.27 | 0.26 | 0.51 | 1.63 | 0.41 | 0.27 | 1.8 | 2 |
Al2O3 | 13.6 | 13.6 | 13.4 | 13.88 | 14.9 | 13.95 | 13.87 | 14.6 | 14.71 | 13.36 |
Fe2O3 | 14.78 | 12.9 | 13.6 | 13.98 | 15.2 | 13.95 | 14.57 | 13.41 | 13.25 | 14.22 |
MnO | 0.17 | 0.2 | 0.2 | 0.21 | 0.2 | 0.22 | 0.22 | 0.21 | 0.24 | 0.28 |
MgO | 5.4 | 7.7 | 8.1 | 7.86 | 8.12 | 8.1 | 8.98 | 8.73 | 7.9 | 8 |
CaO | 8.78 | 12.8 | 12.8 | 12.54 | 11.65 | 11.6 | 12.3 | 10.9 | 9.85 | 10.2 |
Na2O | 3.85 | 3.62 | 2.62 | 3.32 | 2.87 | 3.42 | 2.76 | 3.21 | 2.76 | 3.52 |
K2O | 0.88 | 0.93 | 0.53 | 0.65 | 0.74 | 0.62 | 1.95 | 0.6 | 0.7 | 0.82 |
P2O5 | 0.37 | 0.26 | 0.42 | 0.39 | 0.43 | 0.51 | 0.56 | 0.49 | 0.38 | 0.36 |
LOI | 1.82 | 1.65 | 2.12 | 1.65 | 1.78 | 1.74 | 2.13 | 1.75 | 1.85 | 1.76 |
Sum | 99.96 | 99.39 | 99.8 | 99.41 | 99.53 | 99.7 | 99.54 | 100.02 | 99.51 | 99.62 |
Mg # | 42 | 54.2 | 54.1 | 52.7 | 51.4 | 53.5 | 55 | 56.3 | 54.2 | 52.7 |
Na2O/K2O | 4.37 | 3.89 | 4.94 | 5.11 | 3.88 | 5.51 | 1.42 | 5.35 | 3.94 | 4.3 |
Al2O3/TiO2 | 30.9 | 41.21 | 49.63 | 53.38 | 29.21 | 8.55 | 33.82 | 54 | 8.17 | 6.68 |
Cr ppm | 18 | 92 | 89 | 74 | 299 | 309 | 173 | 101 | 297 | 260 |
Co | 68 | 40 | 68 | 72 | 49 | 46 | 59 | 48 | 74 | 67 |
Ni | 187 | 250 | 280 | 170 | 232 | 221 | 252 | 238 | 296 | 234 |
Cu | 118 | 60 | 65 | 68 | 66 | 76 | 68 | 78 | 71 | 94 |
Zn | 124 | 105 | 110 | 114 | 101 | 104 | 104 | 103 | 121 | 126 |
Sr | 447 | 799 | 661 | 520 | 843 | 677 | 897 | 721 | 657 | 593 |
Y | 60 | 18 | 16 | 14 | 15 | 16 | 17 | 17 | 20 | 21 |
Nb | 21 | 31 | 22 | 8 | 20 | 15 | 26 | 14 | 23 | 27 |
La | 49 | 23 | 18 | 17 | 16 | 15 | 22 | 14 | 26 | 25 |
Ce | 110 | 23 | 14 | 12 | 17 | 15 | 32 | 11 | 44 | 48 |
Pb | 15 | 16 | 10 | 13 | 10 | 11 | 5 | 4 | 14 | 21 |
Ba | 285 | 1547 | 1953 | 2055 | 767 | 350 | 496 | 378 | 239 | 1022 |
Zr | 261 | 109 | 98 | 80 | 203 | 137 | 160 | 118 | 161 | 172 |
Cr/Ni | 0.1 | 0.36 | 0.32 | 0.43 | 1.28 | 1.39 | 0.68 | 0.42 | 1 | 1.1 |
Zr/Nb | 12.42 | 3.51 | 4.45 | 10 | 10.15 | 9.13 | 7.3 | 8.43 | 5.26 | 6.37 |
Zr/Y | 4.35 | 6.05 | 6.12 | 5.71 | 13.53 | 8.56 | 3.53 | 6.94 | 8.05 | 8.19 |
Y/Nb | 2.85 | 0.58 | 0.72 | 1.75 | 0.75 | 1.06 | 0.65 | 1.21 | 0.87 | 0.78 |