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Home All issues Volume 197 (2026) BSGF - Earth Sci. Bull., 197 (2026) 10 Full HTML
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Table 2

(continued 1).

Rock type Basanite Basalt
Sample HOL32 MBA11
Analyses C1 C2 C2 C4 C4 C4 C5 C5 C5 C1 C2 C2(c) C2(b) C2(c) C4(b) C4(c) C5 C5
SiO2 39.68 40.06 40.53 39.72 40.21 39.76 39.73 39.92 39.90 41.52 40.86 40.95 41.33 41.44 41.53 41.03 42.05 41.55
TiO2 0.00 0.00 0.01 0.00 0.02 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00
Al2O3 0.00 0.06 0.04 0.07 0.00 0.11 0.00 0.09 0.05 0.07 0.03 0.05 0.08 0.02 0.06 0.04 0.05 0.05
Cr2O3 0.00 0.01 0.00 0.05 0.05 0.02 0.01 0.00 0.04 0.02 0.02 0.00 0.03 0.02 0.02 0.00 0.01 0.01
FeO 16.55 16.76 14.5 12.71 12.96 15.09 13.03 15.31 13.77 10.38 11.31 11.68 10.72 10.28 9.47 9.49 8.72 8.94
MnO 0.18 0.09 0.24 0.17 0.22 0.32 0.20 0.27 0.16 0.13 0.21 0.14 0.14 0.11 0.20 0.10 0.12 0.17
MgO 44.02 43.77 45.04 47.55 46.8 45.36 46.69 44.15 45.98 48.35 47.85 47.6 48.21 48.73 48.88 48.47 48.84 49.62
NiO 0.28 0.22 0.25 0.22 0.36 0.28 0.23 0.15 0.32 0.39 0.28 0.42 0.34 0.37 0.5 0.41 0.3 0.36
CaO 0.10 0.15 0.04 0.31 0.22 0.20 0.15 0.05 0.20 0.06 0.05 0.04 0.14 0.11 0.05 0.02 0.04 0.08
Na2O 0.00 0.01 0.00 0.04 0.01 0.00 0.07 0.05 0.02 0.00 0.02 0.07 0.03 0.02 0.01 0.00 0.11 0.00
K2O 0.02 0.00 0.00 0.00 0.01 0.03 0.00 0.04 0.00 0.00 0.02 0.01 0.01 0.00 0.03 0.01 0.01 0.00
Total 100.84 101.12 100.65 100.84 100.86 101.18 100.12 100.03 100.44 100.93 100.65 100.97 101.02 101.10 100.76 99.66 100.33 100.86
Si 1.00 1.00 1.01 0.98 1.00 0.99 0.99 1.00 1.00 1.01 1.00 1.00 1.01 1.01 1.01 1.01 1.02 1.01
Ti 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Al 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Cr 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Fe2+ 0.35 0.35 0.30 0.26 0.27 0.31 0.27 0.32 0.29 0.21 0.23 0.24 0.22 0.21 0.19 0.19 0.18 0.18
Mn 0.00 0.00 0.01 0.00 0.00 0.01 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Mg 1.65 1.63 1.67 1.76 1.73 1.69 1.74 1.66 1.71 1.75 1.75 1.74 1.75 1.77 1.77 1.77 1.77 1.79
Ni 0.01 0.00 0.01 0.00 0.01 0.01 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01
Ca 0.00 0.00 0.00 0.01 0.01 0.01 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Total 3.01 3.00 2.99 3.02 3.01 3.01 3.01 3.00 3.01 2.99 3.00 3.00 2.99 3.00 2.99 2.99 2.98 2.99
Fo 82.43 82.24 84.49 86.81 86.36 83.99 86.28 83.47 85.47 89.13 88.10 87.77 88.78 89.32 90.01 90.01 90.78 90.66
Fa 17.38 17.66 15.26 13.01 13.41 15.67 13.51 16.24 14.36 10.73 11.68 12.08 11.07 10.57 9.78 9.88 9.09 9.16
Tp 0.19 0.10 0.26 0.18 0.23 0.34 0.21 0.29 0.17 0.14 0.22 0.15 0.15 0.11 0.21 0.11 0.13 0.18

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