PX1 | PX2 | PX3 | PX4 | PX5 | PX6 | PX7 | PX8 | PX9 | PX10 | PX11 | PX12 | PX13 | PX14 | PX15 | PX16 | |
SiO2 | 53.56 | 54.29 | 53.36 | 53.12 | 52.89 | 53.30 | 53.54 | 53.57 | 52.66 | 53.05 | 52.57 | 53.29 | 53.60 | 53.01 | 53.65 | 51.88 |
TiO2 | 0.22 | 0.156 | 0.202 | 0.262 | 0.246 | 0.198 | 0.189 | 0.218 | 0.311 | 0.202 | 0.301 | 0.26 | 0.241 | 0.125 | 0.164 | 0.34 |
Al2O3 | 1.11 | 1.05 | 1.35 | 1.1 | 1.18 | 1.13 | 0.98 | 1.12 | 1.63 | 1.70 | 1.81 | 1.21 | 1.21 | 1.88 | 1.08 | 2.47 |
Cr2O3 | 0.44 | 0.29 | 0.77 | 0.14 | 0.28 | 0.62 | 0.43 | 0.04 | 0.39 | 1.37 | 0.72 | 0.26 | 0.33 | 0.07 | 0.58 | 0.06 |
FeO | 5.49 | 6.63 | 4.85 | 7.32 | 6.42 | 4.79 | 5.15 | 7.51 | 7.19 | 4.64 | 5.48 | 6.28 | 6.15 | 7.85 | 4.77 | 7.99 |
MnO | 0.18 | 0.23 | 0.14 | 0.21 | 0.16 | 0.15 | 0.15 | 0.25 | 0.25 | 0.19 | 0.07 | 0.21 | 0.22 | 0.21 | 0.12 | 0.24 |
MgO | 17.17 | 17.73 | 17.10 | 16.49 | 16.27 | 16.81 | 17.33 | 16.23 | 16.29 | 17.04 | 16.26 | 16.66 | 16.46 | 15.98 | 17.29 | 14.38 |
CaO | 21.11 | 19.83 | 21.79 | 20.31 | 20.81 | 21.74 | 21.11 | 20.61 | 20.55 | 20.86 | 21.54 | 21.22 | 21.39 | 20.16 | 22.07 | 20.87 |
Na2O | 0.28 | 0.24 | 0.31 | 0.19 | 0.32 | 0.26 | 0.22 | 0.27 | 0.31 | 0.45 | 0.39 | 0.31 | 0.32 | 0.43 | 0.29 | 0.53 |
K2O | 0 | 0.01 | 0 | 0 | 0 | 0.004 | 0.012 | 0.01 | 0 | 0 | 0.02 | 0.01 | 0.01 | 0.01 | 0.01 | 0 |
Total | 99.56 | 100.45 | 99.8 | 99.14 | 98.58 | 98.99 | 99.12 | 99.82 | 99.58 | 99.5 | 99.18 | 99.7 | 99.9 | 99.72 | 100.02 | 98.77 |
Ca | 0.83 | 0.77 | 0.86 | 0.81 | 0.83 | 0.86 | 0.83 | 0.82 | 0.82 | 0.82 | 0.85 | 0.84 | 0.84 | 0.8 | 0.86 | 0.84 |
Na | 0.02 | 0.02 | 0.02 | 0.01 | 0.02 | 0.02 | 0.015 | 0.019 | 0.022 | 0.032 | 0.028 | 0.022 | 0.023 | 0.03 | 0.021 | 0.038 |
Na + Ca | 0.85 | 0.79 | 0.87 | 0.82 | 0.85 | 0.88 | 0.85 | 0.83 | 0.84 | 0.85 | 0.88 | 0.86 | 0.86 | 0.83 | 0.88 | 0.87 |
En | 48.34 | 49.47 | 48.1 | 46.68 | 46.59 | 47.76 | 48.84 | 45.85 | 46.24 | 49.05 | 46.65 | 46.87 | 46.48 | 45.67 | 48.17 | 42.29 |
Fs | 8.96 | 10.75 | 7.86 | 11.97 | 10.58 | 7.87 | 8.39 | 12.30 | 11.85 | 7.79 | 8.93 | 10.23 | 10.09 | 12.92 | 7.65 | 13.59 |
Wo | 42.71 | 39.78 | 44.04 | 41.34 | 42.83 | 44.37 | 42.77 | 41.85 | 41.91 | 43.15 | 44.41 | 42.89 | 43.42 | 41.40 | 44.17 | 44.12 |