Major Oxides | SAMPLE Nos. | ||||||||||
D9 | D12 | D16 | D19 | BP5 | BP9 | NB2 | NB5 | N4 (1) | N5 (2) | Avg. | |
SiO2 | 91.63 | 63.69 | 87.15 | 89.52 | 86.7 | 85.7 | 74.62 | 92.75 | 76.05 | 86.06 | 83.38 |
Al2O3 | 5.03 | 15.05 | 6.08 | 4.55 | 5.18 | 5.13 | 12.07 | 3.56 | 11.75 | 3.23 | 7.16 |
Fe2O3 | 0.52 | 4.25 | 1.06 | 0.65 | 1.61 | 1 | 3.02 | 0.54 | 2.84 | 4.5 | 1.99 |
CaO | 0.04 | 2.78 | 0.23 | 0.14 | 0.15 | 0.21 | 0.28 | 0.02 | 0.29 | 0.26 | 0.44 |
MgO | 0.41 | 2.28 | 0.65 | 0.64 | 0.72 | 0.88 | 1.91 | 0.57 | 1.93 | 1.53 | 1.15 |
K2O | 0.53 | 1.16 | 0.92 | 0.6 | 0.72 | 0.66 | 1.36 | 0.45 | 1.54 | 0.41 | 0.83 |
Na2O | 0.52 | 1.72 | 0.32 | 0.26 | 0.31 | 0.28 | 2.09 | 0.25 | 2.35 | 0.18 | 0.82 |
TiO2 | 0.47 | 0.63 | 0.53 | 0.56 | 0.49 | 0.66 | 0.65 | 0.58 | 0.49 | 0.67 | 0.57 |
MnO | 0.016 | 0.083 | 0.02 | 0.022 | 0.027 | 0.024 | 0.048 | 0.019 | 0.042 | 0.08 | 0.038 |
P2O5 | 0.033 | 0.112 | 0.061 | 0.052 | 0.052 | 0.058 | 0.077 | 0.047 | 0.078 | 0.052 | 0.062 |
LOI | 1.41 | 7.41 | 1.77 | 1.7 | 1.96 | 1.85 | 3.64 | 1.72 | 3 | 3.85 | 2.83 |
Total | 100.6 | 99.16 | 98.8 | 98.7 | 97.92 | 96.45 | 99.76 | 100.5 | 100.36 | 100.82 | 99.31 |
CIA | 82.19 | 68.94 | 83.52 | 81.40 | 81.45 | 78.92 | 73.82 | 80.91 | 72.00 | 62.12 | 74.82 |
CIW | 89.98 | 76.98 | 91.70 | 91.92 | 91.84 | 91.28 | 83.59 | 92.95 | 81.65 | 88.01 | 85.04 |
PIW | 73.53 | 67.07 | 68.34 | 71.17 | 70.13 | 71.18 | 67.78 | 72.66 | 64.09 | 69.12 | 68.43 |
Major Oxide Ratio | |||||||||||
Fe2O3 + MgO | 0.93 | 6.53 | 1.71 | 1.29 | 2.33 | 1.88 | 4.93 | 1.11 | 4.77 | 6.03 | |
Al2O3/SiO2 | 0.05 | 0.23 | 0.06 | 0.05 | 0.05 | 0.05 | 0.16 | 0.03 | 0.15 | 0.03 | |
K2O/Na2O | 1.01 | 0.67 | 2.87 | 2.3 | 2.32 | 2.35 | 0.65 | 1.8 | 0.65 | 2.27 | |
Al2O3/(CaO + Na2O) | 8.98 | 3.34 | 11.05 | 11.37 | 5.95 | 4 | 2.36 | 4.5 | 2.26 | 0.69 | |
log (Na2O/K2O) | −0.0083 | 0.171 | −0.458 | −0.368 | −0.365 | 0.372 | 0.186 | −0.255 | 0.183 | −0.357 | |
log(Fe2O3/K2O) | −0.0083 | 0.563 | 0.061 | 0.034 | 0.349 | 0.18 | 0.346 | 0.079 | 0.265 | 1.04 | |
log(SiO2/Al2O3) | 1.26 | 0.626 | 1.156 | 1.293 | 1.233 | 1.222 | 0.791 | 1.415 | 0.811 | 1.425 | |
Al2O3/Na2O | 9.67 | 8.75 | 19 | 17.5 | 16.7 | 18.32 | 5.77 | 14.24 | 5 | 17.94 | |
TiO2/Al2O3 | 0.09 | 0.04 | 0.08 | 0.12 | 0.09 | 0.12 | 0.05 | 0.16 | 0.04 | 0.02 | |
MnO/Fe2O3 | 0.03 | 0.01 | 0.01 | 0.03 | 0.01 | 0.02 | 0.01 | 0.03 | 0.01 | 0.01 | |
Al2O3 + K2O + Na2O | 6.08 | 17.93 | 7.32 | 5.41 | 6.21 | 6.07 | 15.52 | 4.26 | 15.64 | 3.82 | |
SiO2/Al2O3 | 18.21 | 4.23 | 14.33 | 19.67 | 16.73 | 16.7 | 6.18 | 26.05 | 6.47 | 26.64 |