Sample | CS8 | CS7 | CS6 | CS5 | CS4 | CS3 | CS2 | CS1 | AS7 | AS6 | AS5 | AS4 | AS3 | AS2 | AS1 |
Depth (cm) | 485 | 450 | 180 | 160 | 130 | 65 | 40 | 20 | 190 | 170 | 140 | 110 | 70 | 40 | 20 |
SiO2 | 48.79 | 49.00 | 47.99 | 47.53 | 47.15 | 49.12 | 47.48 | 46.07 | 51.2 | 50.21 | 51.27 | 52.34 | 50.83 | 51.23 | 50.95 |
TiO2 | 1.08 | 1.32 | 1.14 | 1.32 | 1.33 | 1.30 | 1.22 | 1.37 | 1.28 | 1.24 | 1.27 | 1.31 | 1.42 | 1.48 | 1.51 |
Al2O3 | 18.78 | 18.25 | 19.10 | 19.37 | 19.22 | 19.84 | 20.08 | 18.98 | 18.76 | 18.47 | 18.41 | 17.93 | 18.67 | 17.53 | 18.74 |
Fe2O3a | 9.58 | 10.04 | 10.03 | 10.08 | 10.29 | 9.41 | 10.13 | 9.75 | 8.87 | 9.53 | 8.99 | 9.47 | 9.26 | 9.65 | 9.13 |
MnO | 0.17 | 0.21 | 0.18 | 0.19 | 0.21 | 0.20 | 0.17 | 0.16 | 0.14 | 0.15 | 0.15 | 0.12 | 0.11 | 0.12 | 0.11 |
MgO | 4.47 | 4.55 | 4.20 | 4.06 | 3.89 | 3.88 | 4.09 | 3.52 | 3.25 | 3.44 | 3.19 | 3.29 | 3.36 | 3.36 | 3.08 |
CaO | 7.52 | 6.97 | 6.97 | 7.05 | 6.69 | 6.19 | 4.15 | 6.26 | 5.7 | 5.83 | 5.24 | 2.11 | 3.55 | 2.41 | 4.26 |
Na2O | 3.54 | 3.29 | 3.36 | 3.13 | 2.94 | 3.25 | 3.88 | 2.82 | 3.19 | 3.08 | 3.19 | 3.5 | 2.96 | 3.18 | 3.25 |
K2O | 1.44 | 1.40 | 1.50 | 1.19 | 1.37 | 1.27 | 1.51 | 1.47 | 1.54 | 1.35 | 1.69 | 1.68 | 1.66 | 1.64 | 1.63 |
P2O5 | 0.59 | 0.70 | 0.60 | 0.66 | 0.70 | 0.67 | 0.47 | 0.57 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
LOIb | 3.77 | 3.94 | 4.68 | 5.21 | 5.04 | 4.62 | 6.50 | 8.53 | 5.91 | 6.48 | 6.19 | 7.77 | 7.74 | 8.49 | 6.72 |
Total | 99.73 | 99.67 | 99.75 | 99.80 | 98.85 | 99.73 | 99.62 | 99.50 | 99.84 | 99.78 | 99.59 | 99.52 | 99.56 | 99.09 | 99.38 |
Zn | 111.18 | 124.46 | 113.06 | 119.32 | 126.08 | 120.42 | 108.24 | 115.56 | 115.36 | 103.04 | 80.64 | 72.15 | 79.64 | 68.27 | 69.29 |