Major Oxides (%) | Talc-chlorite schist | Amphibolites | Quartz-mica schist | |||
Mean | Range | Mean | Range | Mean | Range | |
SiO2 | 57.53 | 55.26 - 59.15 | 55.11 | 49.67 - 67.19 | 63.65 | 50.05 - 67.46 |
TiO2 | 0.11 | 0.03 - 0.34 | 1.15 | 0.72 - 1.36 | 0.98 | 0.82 - 1.35 |
Al2O3 | 2.60 | 1.59 - 3.30 | 13.26 | 12.13 - 15.16 | 14.60 | 12.17 - 15.31 |
Fe2O3 | 7.73 | 5.78 - 11.35 | 9.73 | 6.29 - 11.15 | 7.48 | 6.19 - 11.13 |
MnO | 0.11 | 0.04 - 0.21 | 0.17 | 0.10 - 0.20 | 0.12 | 0.10 - 0.20 |
MgO | 24.84 | 22.19 - 26.98 | 6.06 | 1.64 - 7.24 | 2.93 | 1.60 - 7.21 |
CaO | 0.64 | 0.11 - 1.74 | 7.98 | 1.50 - 10.96 | 3.52 | 1.51 - 10.32 |
Na2O | 0.04 | 0.02 - 0.10 | 1.40 | 1.00 - 2.33 | 1.80 | 1.01 - 2.08 |
K2O | 0.03 | 0.01 - 0.08 | 2.18 | 0.66 - 6.66 | 2.26 | 1.12 - 2.71 |
P2O5 | 0.02 | 0.01 - 0.03 | 0.37 | 0.11 - 1.09 | 0.16 | 0.10 - 0.20 |
Trace Elements (ppm) |
| |||||
Ba | 20 | 8 - 38 | 840 | 238 - 2732 | 567 | 417 - 638 |
Co | 76 | 65 - 88 | 3 | 1 - 7 | 21 | 13 - 43 |
Cr | 2486 | 1772 - 3290 | 266 | 90 - 320 | 145 | 70 - 330 |
Cu | 26 | 3 - 70 | 34 | 22 - 41 | 26 | 21 - 46 |
Ni | 1246 | 833 - 1568 | 81 | 29 - 102 | 48 | 27 - 100 |
Pb | 0.72 | 0.2 - 2 | 16 | 3 - 25 | 7 | 3 - 19 |
Rb | 2 | 0.3 - 10 | 76 | 17 - 242 | 81 | 28 - 101 |
Sr | 12 | 5 - 35 | 556 | 216 - 916 | 293 | 214 - 560 |
V | 48 | 33 - 65 | 207 | 100 - 263 | 139 | 96 - 261 |
Zn | 16 | 6 - 34 | 39 | 20 - 52 | 46 | 40 - 52 |