Rocks type |
| Tholeiiticbasalts |
| Basalt and calc-alkaline andesitic basalts |
|
| Calc-alkaline dacites |
|
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Sample | Mel 95 | Mel 96 | Mel 100 | Mel 101 | Mel103A | Maz 186 | Maz 188 | Maz 191 | Nam 32 | Nam41a | Nam41e | Nam43c | Nam60 | Nam67 | |
SiO2 | 43.20 | 45.00 | 40.80 | 40.90 | 43.40 | 37.50 | 43.90 | 53.10 | 66.00 | 65.20 | 50.20 | 68.40 | 50.70 | 50.40 | |
Al2O3 | 6.36 | 6.48 | 6.99 | 7.35 | 6.31 | 9.20 | 12.75 | 2.74 | 14.45 | 14.05 | 15.60 | 14.05 | 13.95 | 15.25 | |
Fe2O3 | 11.85 | 12.20 | 11.00 | 9.12 | 10.35 | 11.00 | 8.94 | 8.50 | 6.98 | 7.270 | 12.70 | 5.99 | 13.65 | 11.20 | |
CaO | 5.83 | 6.79 | 6.85 | 7.98 | 5.45 | 5.95 | 6.69 | 10.95 | 3.06 | 3.01 | 10.15 | 3.17 | 10.55 | 11.20 | |
MgO | 23.50 | 23.00 | 20.20 | 16.00 | 20.60 | 17.45 | 8.45 | 20.20 | 3.21 | 2.93 | 5.36 | 2.75 | 6.96 | 7.68 | |
Na2O | 0.26 | 0.51 | 0.29 | 1.38 | 0.99 | <0.01 | 0.98 | 0.09 | 3.75 | 2.94 | 2.21 | 3.34 | 2.03 | 2.23 | |
K2O | 0.02 | 0.06 | 0.02 | 0.03 | 0.03 | 0.08 | 1.71 | 0.03 | 2.07 | 2.31 | 1.25 | 1.77 | 0.66 | 0.53 | |
Cr2O3 | 0.356 | 0.369 | 0.375 | 0.233 | 0.309 | 0.248 | 0.066 | 0.098 | 0.035 | 0.034 | 0.018 | 0.031 | 0.039 | 0.049 | |
TiO2 | 0.32 | 0.38 | 0.37 | 0.37 | 0.35 | 0.42 | 0.59 | 0.12 | 0.48 | 0.44 | 1.13 | 0.40 | 1.12 | 0.63 | |
MnO | 0.15 | 0.16 | 0.11 | 0.15 | 0.16 | 0.14 | 0.15 | 0.16 | 0.10 | 0.11 | 0.20 | 0.09 | 0.22 | 0.16 | |
P2O5 | 0.02 | 0.01 | 0.02 | 0.03 | 0.03 | 0.03 | 0.06 | 0.01 | 0.14 | 0.10 | 0.09 | 0.10 | 0.10 | 0.03 | |
SrO | <0.01 | <0.01 | 0.01 | 0.01 | <0.01 | <0.01 | 0.01 | <0.01 | 0.05 | 0.06 | 0.02 | 0.05 | 0.02 | 0.01 | |
BaO | <0.01 | <0.01 | <0.01 | <0.01 | 0.01 | <0.01 | 0.03 | <0.01 | 0.12 | 0.07 | 0.02 | 0.06 | 0.01 | <0.01 | |
LOI | 7.19 | 6.76 | 11.55 | 15.90 | 12.40 | 13.30 | 16.40 | 15.15 | 13.7 | 3.42 | 1.40 | 1.47 | 1.18 | 1.53 | |
Total | 99.06 | 101.72 | 98.59 | 99.45 | 100.39 | 98.57 | 98.94 | 97.17 | 98.03 | 99.42 | 101.85 | 99.99 | 100.13 | 101.73 | |
Cr | 2630 | 2500 | 2500 | 1600 | 2060 | 1660 | 470 | 720 | 240 | 240 | 120 | 210 | 280 | 360 | |
Ni | 1360 | 1310 | 1145 | 819 | 1195 | 584 | 108 | 657 | 123 | 132 | 94.00 | 125 | 128 | 83 | |
Rb | 0.40 | 0.50 | 0.30 | 0.20 | 0.20 | 0.30 | 59.00 | 0.70 | 57.50 | 77.40 | 52.60 | 63.00 | 25.40 | 25.00 | |
Sr | 9.50 | 19.30 | 62.90 | 74.00 | 39.70 | 17.90 | 44.80 | 4.60 | 418 | 459 | 198 | 393 | 136 | 111.50 | |
Cs | 0.04 | 0.25 | 0.06 | 0.03 | 0.04 | 0.09 | 1.62 | 0.09 | 3.72 | 4.75 | 2.97 | 3.68 | 2.12 | 1.68 | |
Ba | 3.00 | 3.50 | 8.30 | 2.10 | 77.50 | 6.90 | 300 | 4.00 | 1040 | 584 | 190 | 479 | 123 | 38.7 | |
Sc | 26.00 | 24.00 | 23.00 | 19.00 | 21.00 | 24.00 | 28.00 | 8.00 | 3.72 | 4.75 | 2.97 | 3.68 | 2.12 | 1.68 | |
V | 137 | 129 | 105 | 111 | 103 | 118 | 185 | 69.00 | 98.00 | 80.00 | 268 | 74.00 | 301 | 253 | |
Hf | 0.50 | 0.70 | 0.70 | 0.90 | 0.60 | 1.10 | 1.80 | 0.60 | 3.10 | 3.60 | 2.60 | 2.90 | 2.00 | 1.50 | |
Nb | 0.30 | 0.50 | 0.90 | 1.20 | 0.60 | 1.40 | 3.30 | 0.50 | 4.70 | 4.00 | 3.70 | 3.70 | 3.10 | 2.20 | |
Zr | 14.00 | 21.00 | 22.00 | 31.00 | 19.00 | 30.00 | 61.00 | 13.00 | 107 | 118 | 81.00 | 94.00 | 69.00 | 48.00 | |
Ta | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.20 | 0.20 | 0.20 | 0.50 | 0.40 | 0.30 | 0.40 | 0.30 | 0.20 | |
Th | <0.05 | 0.09 | 0.15 | 0.49 | 0.10 | 0.30 | 0.98 | 0.24 | 6.86 | 4.96 | 1.75 | 5.00 | 1.47 | 0.37 | |
U | <0.05 | <0.05 | 0.08 | 0.14 | <0.05 | 0.42 | 0.41 | 0.05 | 1.95 | 1.47 | 0.58 | 1.41 | 0.36 | 0.10 | |
Y | 6.80 | 10.90 | 6.10 | 8.10 | 9.40 | 11.90 | 20.80 | 10.2 | 13.6 | 9.60 | 24.7 | 10.70 | 24.50 | 19.00 | |
La | 0.50 | 1.30 | 1.40 | 2.60 | 0.50 | 2.90 | 5.30 | 2.60 | 27 | 21.80 | 8.10 | 21.80 | 7.70 | 3.40 | |
Ce | 0.80 | 2.00 | 3.50 | 6.10 | 1.40 | 6.10 | 11.80 | 1.90 | 46.6 | 38.30 | 16.6 | 39.10 | 15.90 | 8.60 | |
Pr | 0.24 | 0.48 | 0.55 | 0.83 | 0.21 | 0.92 | 1.70 | 1.37 | 5.51 | 4.38 | 2.23 | 4.47 | 2.09 | 1.38 | |
Nd | 1.50 | 2.40 | 2.40 | 3.30 | 1.20 | 4.20 | 8.30 | 5.8 | 20.8 | 17.00 | 10.10 | 17.30 | 10.00 | 6.90 | |
Sm | 0.61 | 0.85 | 0.72 | 0.89 | 0.47 | 1.25 | 2.27 | 1.73 | 3.74 | 2.70 | 3.16 | 2.75 | 3.02 | 2.08 | |
Eu | 0.23 | 0.39 | 0.14 | 0.26 | 0.17 | 0.44 | 1.00 | 0.55 | 1.05 | 0.80 | 0.97 | 0.85 | 0.99 | 0.78 | |
Gd | 1.12 | 1.71 | 0.95 | 1.41 | 1.27 | 1.92 | 3.23 | 1.97 | 2.72 | 2.40 | 4.13 | 2.43 | 3.91 | 3.93 | |
Tb | 0.20 | 0.27 | 0.18 | 0.13 | 0.24 | 0.37 | 0.57 | 0.43 | 0.4 | 0.36 | 0.67 | 0.31 | 0.67 | 0.53 | |
Dy | 1.34 | 1.69 | 1.15 | 1.53 | 1.79 | 2.15 | 3.82 | 2.51 | 2.68 | 1.73 | 4.50 | 1.94 | 4.63 | 3.46 | |
Ho | 0.27 | 0.38 | 0.23 | 0.32 | 0.33 | 0.47 | 0.80 | 0.49 | 0.48 | 0.38 | 0.96 | 0.38 | 0.88 | 0.68 | |
Er | 0.86 | 1.13 | 0.75 | 0.96 | 0.98 | 1.26 | 2.33 | 1.48 | 1.19 | 0.95 | 2.81 | 1.03 | 2.65 | 2.08 | |
Tm | 0.11 | 0.16 | 0.08 | 0.12 | 0.15 | 0.18 | 0.32 | 0.17 | 0.16 | 0.13 | 0.38 | 0.14 | 0.34 | 0.30 | |
Yb | 0.77 | 0.91 | 0.63 | 0.83 | 0.95 | 1.26 | 2.24 | 1.63 | 1.11 | 0.92 | 2.56 | 1.00 | 2.44 | 2.12 | |
Lu | 0.09 | 0.14 | 0.10 | 0.12 | 0.12 | 0.20 | 0.30 | 0.24 | 0.16 | 0.15 | 0.32 | 0.14 | 0.37 | 0.31 | |
Pb | <2 | <2 | <2 | <2 | <2 | <2 | <2 | 3 | 17 | 8 | 6 | 13 | <2 | 4 |