Sample | Al-depleted komatiite | Olivine | Glass | Spinel | Basaltb |
---|---|---|---|---|---|
SiO2 | 46.29 | 41.02 | 50.74 | 0.22 | 49.84 |
TiO | 0.37 | 0.00 | 0.68 | 0.22 | 0.73 |
Al2O3 | 4.30 | 0.20 | 7.74 | 6.43 | 15.82 |
Cr2O3 | 0.21 | 0.48 | 0.52 | 52.22 | – |
FeOtotal a | 12.52 | 9.70 | 14.81 | 22.03 | 11.00 |
MnO | 0.13 | 0.09 | 0.18 | 0.14 | 0.22 |
MgO | 27.47 | 48.80 | 12.57 | 15.49 | 9.44 |
CaO | 7.20 | 0.30 | 11.84 | 0.22 | 10.84 |
Na2O | 0.06 | 0.00 | 0.23 | 0.00 | 1.88 |
K2O | 0.02 | 0.02 | 0.05 | 0.02 | 0.18 |
NiO | 0.11 | 0.34 | 0.01 | 0.22 | – |
Total | 98.68 | 100.95 | 99.37 | 97.23 | 99.95 |
Mg#c | 79.64 | 89.96 | 60.21 | 55.62 | 60.47 |