lava trachyte phonolite | ||||||
sample | NGZ1 | GZ2 | NGDF1 | NGDF2 | NGB1 | NGO1 |
TiO2 | 9.97 | 9.59 | 8.36 | 10.64 | 7.78 | 10.32 |
Al2O3 | 0.72 | 0.51 | 0.13 | 0.12 | 0.55 | 0.53 |
Cr2O3 | 0.2 | 0.02 | 0.02 | 0.02 | - | 0.01 |
Fe2O3 | 48.39 | 49.27 | 50.62 | 48.41 | 53.27 | 43.51 |
FeO | 35 | 34.58 | 33.09 | 33.89 | 33.65 | 32.43 |
MnO | 4.19 | 4.47 | 5.05 | 6.94 | 4.09 | 5.6 |
MgO | 0.6 | 0.44 | 0.03 | 0.16 | 0.33 | 0.3 |
total | 98.88 | 98.97 | 97.59 | 100.17 | 99.68 | 92.7 |
Ti | 0.125 | 0.12 | 0.105 | 0.133 | 0.097 | 0.129 |
Al | 0.014 | 0.012 | 0.003 | 0.002 | 0.011 | 0.01 |
Cr | - | - | - | - | - | - |
Fe2+ | 1.091 | 1.096 | 1.092 | 1.076 | 1.133 | 0.994 |
Mn | 0.059 | 0.063 | 0.071 | 0.098 | 0.058 | 0.079 |
Mg | 0.015 | 0.011 | 0.001 | 0.004 | 0.008 | 0.007 |
Mol % | 26.79 | 25.6 | 22.29 | 26.63 | 20.63 | 28.86 |