13509-A | 13509-B | 64775 | 64777 | COO-01 | |
Volcanic rock | Volcanic rock | Volcanic rock | Volcanic rock | Intrusive rock | |
SiO2 (wt%) | 54.06 | 55.04 | 56.83 | 52.88 | 49.30 |
TiO2 | 0.74 | 0.66 | 0.26 | 0.74 | 0.91 |
Al2O3 | 16.35 | 16.29 | 6.40 | 18.55 | 20.94 |
Fe2O3 | 9.14 | 8.98 | 8.23 | 12.06 | 8.63 |
MnO | 0.38 | 0.37 | 0.22 | 0.18 | 0.29 |
MgO | 4.74 | 4.82 | 1.05 | 3.20 | 3.00 |
CaO | 6.21 | 4.26 | 15.03 | 3.38 | 5.50 |
Na2O | 0.83 | 0.50 | 0.01 | 1.04 | 0.00 |
K2O | 2.06 | 2.51 | 1.26 | 2.49 | 3.67 |
P2O5 | 0.15 | 0.14 | 0.05 | 0.17 | 0.18 |
LOI | 5.34 | 6.43 | 10.67 | 5.29 | 7.57 |
Sum | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 |
Ba (ppm) | 84.9 | 84.0 | 54.3 | 191.7 | 230.0 |
Co | n.m. | n.m. | n.m. | n.m. | 17.50 |
Cr | 55.1 | 47.0 | 54.7 | 64.0 | 11.0 |
Nb | 14.7 | 10.7 | 10.7 | 2.1 | 3.0 |
Ni | 24.1 | 24.3 | 35.3 | 37.4 | 8.4 |
Rb | 44.3 | 49.9 | 25.7 | 49.4 | 59.5 |
Sr | 198.3 | 102.2 | 36.7 | 159.1 | 49.5 |
Th | n.m. | n.m. | n.m. | n.m. | 0.64 |
V | 223.3 | 218.4 | 75.1 | 310.5 | 189.0 |
Y | 20.2 | 17.1 | 12.5 | 25.4 | 20.5 |
Zr | 100.5 | 90.3 | 36.8 | 62.9 | 20.7 |
Nb/Y | 0.73 | 0.63 | 0.86 | 0.08 | 0.15 |
Zr/Y | 4.98 | 5.28 | 2.94 | 2.48 | 1.01 |