Orthopyroxene | NK01 | NK05 | NK07 | NK09 | NK10 | NK11 | NK15 | NK02 | NK04 | NK14 |
SiO2 (wt%) | 55.43 | 55.36 | 57.10 | 56.48 | 55.70 | 56.06 | 56.62 | 56.76 | 55.93 | 54.56 |
TiO2 | 0.06 | 0.04 | 0.01 | 0.05 | 0.04 | - | 0.06 | 0.01 | 0.04 | 0.13 |
Al2O3 | 4.34 | 4.46 | 3.74 | 3.65 | 3.75 | 3.66 | 3.79 | 3.23 | 2.43 | - |
Cr2O3 | 0.40 | 0.46 | 0.29 | 0.33 | 0.39 | 0.35 | 0.40 | 0.46 | 0.40 | 0.47 |
FeOtotal | 6.53 | 6.44 | 6.59 | 6.58 | 6.22 | 6.51 | 6.39 | 5.99 | 7.81 | 7.83 |
MnO | 0.13 | 0.13 | 0.12 | 0.13 | 0.17 | 0.10 | 0.16 | 0.11 | 0.12 | 0.21 |
MgO | 33.44 | 33.34 | 33.76 | 33.61 | 34.02 | 33.33 | 33.63 | 33.8 | 32.95 | 32.44 |
CaO | 0.76 | 1.32 | 0.76 | 0.60 | 0.57 | 0.74 | 0.63 | 0.77 | 0.85 | 0.81 |
Na2O | - | 0.01 | - | - | - | - | - | - | - | - |
K2O | - | 0.01 | - | 0.01 | 0.01 | - | - | - | - | - |
Total | 101.19 | 101.74 | 102.37 | 101.45 | 100.98 | 100.76 | 101.66 | 101.13 | 100.63 | 100.51 |
Mg# | 90.13 | 90.21 | 90.13 | 90.11 | 90.70 | 90.12 | 90.36 | 90.96 | 88.27 | 88.08 |