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sample nb. | 132 | 132 | 132 | 132 | 132-1 | 132-1 | 132-1 | 132-1 | 132-1 | 132-1 | 132-1 | 132-1 | 132-1 | 132-1 | 132-1 | 132-1 | 132-1 | 132-1 | 132-1 |
description | ph.c | ph.r | ph.c | ph.c |
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SiO2 (wt%) | 44.07 | 47.59 | 50.66 | 47.01 | 51.06 | 51.80 | 51.60 | 50.69 | 50.90 | 51.93 | 50.99 | 53.18 | 51.14 | 50.43 | 52.17 | 50.29 | 47.72 | 50.86 | 51.10 |
TiO2 | 3.91 | 1.98 | 0.65 | 1.95 | 0.89 | 1.78 | 0.97 | 1.03 | 0.99 | 0.93 | 0.94 | 1.19 | 1.21 | 0.92 | 0.83 | 1.16 | 3.04 | 1.61 | 0.93 |
Al2O3 | 8.75 | 7.23 | 5.27 | 8.29 | 4.60 | 4.33 | 3.20 | 4.97 | 4.65 | 4.87 | 4.76 | 1.85 | 3.86 | 5.19 | 4.76 | 3.73 | 5.30 | 3.20 | 4.70 |
Cr2O3 | 0.00 | 0.06 | 0.25 | 0.38 | 0.34 | 0.55 | 0.46 | 0.43 | 0.37 | 0.50 | 0.30 | 0.51 | 0.53 | 0.59 | 0.43 | 0.51 | 0.00 | 0.49 | 0.47 |
FeO | 6.92 | 6.68 | 6.90 | 6.21 | 5.46 | 4.91 | 4.53 | 5.73 | 5.13 | 4.91 | 5.23 | 4.46 | 5.24 | 5.07 | 5.04 | 5.85 | 7.30 | 5.27 | 5.46 |
MnO | 0.32 | 0.21 | 0.15 | 0.17 | 0.13 | 0.13 | 0.11 | 0.12 | 0.11 | 0.04 | 0.02 | 0.11 | 0.23 | 0.16 | 0.04 | 0.05 | 0.00 | 0.25 | 0.08 |
MgO | 11.56 | 13.18 | 17.67 | 13.84 | 15.52 | 15.00 | 15.89 | 16.36 | 15.31 | 15.12 | 15.54 | 16.27 | 15.50 | 15.29 | 15.35 | 14.64 | 12.68 | 14.86 | 15.00 |
CaO | 22.34 | 21.49 | 17.18 | 21.21 | 21.17 | 20.77 | 22.17 | 18.42 | 20.55 | 20.66 | 20.52 | 21.53 | 20.93 | 20.65 | 20.01 | 21.97 | 22.38 | 22.01 | 21.05 |
Na2O | 0.49 | 0.60 | 0.68 | 0.56 | 0.79 | 0.59 | 0.62 | 0.82 | 0.89 | 0.85 | 0.81 | 0.71 | 0.70 | 0.84 | 0.72 | 0.57 | 0.62 | 0.47 | 0.77 |
Total | 98.37 | 99.02 | 99.40 | 99.60 | 99.94 | 99.85 | 99.55 | 98.57 | 98.91 | 99.80 | 99.12 | 99.81 | 99.33 | 99.12 | 99.35 | 98.75 | 99.04 | 99.01 | 99.57 |
Fe2O3 (calc.) | 2.91 | 0.79 | 2.84 | 3.14 | 0.97 | 0.00 | 1.84 | 0.97 | 1.40 | 0.00 | 1.28 | 0.00 | 1.01 | 1.88 | 0.00 | 1.77 | 1.81 | 0.13 | 0.00 |
FeO (calc.) | 4.31 | 5.97 | 4.35 | 3.38 | 4.59 | 4.91 | 2.88 | 4.86 | 3.88 | 4.91 | 4.07 | 4.46 | 4.33 | 3.38 | 5.04 | 4.26 | 5.67 | 5.15 | 5.46 |
Total (calc.) | 98.66 | 99.10 | 99.69 | 99.91 | 100.04 | 99.88 | 99.76 | 98.67 | 99.05 | 99.87 | 99.26 | 99.81 | 99.45 | 99.35 | 99.40 | 98.93 | 99.22 | 99.06 | 99.57 |
Si (apfu) | 1.670 | 1.793 | 1.850 | 1.736 | 1.885 | 1.907 | 1.894 | 1.873 | 1.879 | 1.901 | 1.877 | 1.948 | 1.886 | 1.857 | 1.919 | 1.874 | 1.793 | 1.892 | 1.900 |
Ti | 0.111 | 0.056 | 0.018 | 0.054 | 0.025 | 0.049 | 0.027 | 0.029 | 0.027 | 0.026 | 0.026 | 0.033 | 0.033 | 0.025 | 0.023 | 0.032 | 0.086 | 0.045 | 0.026 |
AlVI | 0.061 | 0.114 | 0.077 | 0.097 | 0.085 | 0.094 | 0.032 | 0.089 | 0.081 | 0.111 | 0.084 | 0.028 | 0.053 | 0.082 | 0.125 | 0.038 | 0.028 | 0.033 | 0.105 |
AlIV | 0.330 | 0.207 | 0.150 | 0.264 | 0.115 | 0.093 | 0.106 | 0.127 | 0.121 | 0.099 | 0.123 | 0.052 | 0.114 | 0.143 | 0.081 | 0.126 | 0.207 | 0.108 | 0.100 |
Cr | 0.000 | 0.002 | 0.007 | 0.011 | 0.010 | 0.016 | 0.013 | 0.013 | 0.011 | 0.014 | 0.009 | 0.015 | 0.015 | 0.017 | 0.012 | 0.015 | 0.000 | 0.014 | 0.011 |
Fe3+ (VI) | 0.083 | 0.022 | 0.078 | 0.087 | 0.027 | 0.000 | 0.051 | 0.027 | 0.039 | 0.000 | 0.035 | 0.000 | 0.028 | 0.052 | 0.000 | 0.050 | 0.051 | 0.004 | 0.000 |
Fe2+ | 0.136 | 0.188 | 0.133 | 0.104 | 0.142 | 0.151 | 0.088 | 0.150 | 0.120 | 0.150 | 0.125 | 0.136 | 0.134 | 0.104 | 0.155 | 0.133 | 0.178 | 0.160 | 0.170 |
Mn | 0.010 | 0.007 | 0.005 | 0.005 | 0.004 | 0.004 | 0.004 | 0.004 | 0.004 | 0.001 | 0.001 | 0.004 | 0.007 | 0.005 | 0.001 | 0.002 | 0.000 | 0.008 | 0.003 |
Mg | 0.653 | 0.740 | 0.962 | 0.762 | 0.854 | 0.823 | 0.870 | 0.901 | 0.842 | 0.825 | 0.853 | 0.888 | 0.852 | 0.839 | 0.842 | 0.813 | 0.711 | 0.824 | 0.831 |
Ca | 0.907 | 0.827 | 0.672 | 0.839 | 0.798 | 0.819 | 0.871 | 0.729 | 0.813 | 0.810 | 0.809 | 0.845 | 0.827 | 0.815 | 0.789 | 0.877 | 0.901 | 0.877 | 0.799 |
Na | 0.036 | 0.044 | 0.048 | 0.040 | 0.056 | 0.042 | 0.044 | 0.059 | 0.064 | 0.060 | 0.058 | 0.050 | 0.050 | 0.060 | 0.051 | 0.041 | 0.045 | 0.034 | 0.055 |
Wo (%) | 46.56 | 41.93 | 33.15 | 42.43 | 41.56 | 43.24 | 45.41 | 37.60 | 42.82 | 42.95 | 42.26 | 44.65 | 43.11 | 42.63 | 41.59 | 45.54 | 46.80 | 45.28 | 41.86 |
En | 44.87 | 46.30 | 59.15 | 51.33 | 50.13 | 47.95 | 49.65 | 53.49 | 50.07 | 48.27 | 50.34 | 47.98 | 49.18 | 51.05 | 49.33 | 46.93 | 42.61 | 45.80 | 48.29 |
Fs | 8.57 | 11.77 | 7.70 | 6.23 | 8.31 | 8.80 | 4.94 | 8.91 | 7.11 | 8.78 | 7.40 | 7.37 | 7.71 | 6.32 | 9.08 | 7.53 | 10.59 | 8.91 | 9.85 |
Ti/Al | 0.28 | 0.17 | 0.08 | 0.15 | 0.12 | 0.26 | 0.19 | 0.13 | 0.14 | 0.12 | 0.13 | 0.41 | 0.20 | 0.11 | 0.11 | 0.20 | 0.37 | 0.32 | 0.13 |
Cr*100/ (Cr+Al) | 0.00 | 0.56 | 3.06 | 2.99 | 4.70 | 7.87 | 8.71 | 5.53 | 5.12 | 6.42 | 4.09 | 15.55 | 8.37 | 7.07 | 5.68 | 8.36 | 0.00 | 9.30 | 5.06 |