Trace | Granite gneiss | Biotite gneiss | Biotite granite | Charnockite | ||||||
---|---|---|---|---|---|---|---|---|---|---|
GGN | 1 GGN2 | GGN3 | BGN1 | BGN2 | BG1 | BG2 | Ch1 | Ch2 | Ch3 | |
Ba | 300 | 470 | 310 | 510 | 240 | 580 | 684 | 815 | 722 | 814 |
Co | 5 | 6 | 4.9 | 3 | 1 | 3 | 4 | 3.8 | 4 | 2 |
Cr | 0.38 | 0.3 | 0.28 | 0.2 | 0.27 | 1 | 2 | 2 | 2 | 1 |
Nb | 7 | 5 | 4 | 2 | 2 | 1 | 2 | 3 | 3 | 2 |
Ni | 8 | 7 | 6 | 3 | 12 | 6 | 9 | 7 | 5 | 4 |
Rb | 82 | 90 | 122 | 100 | 130 | 120 | 100 | 98 | 120 | 116 |
Sc | 2 | 3 | 3 | 1 | 1 | 1 | 1 | 3 | 1 | - |
Sr | 110 | 90 | 116 | 88 | 40 | 138 | 150 | 14 | 167 | 132 |
Th | 18 | 12 | 22 | 16 | 24 | 12 | 13 | 12 | 14 | 10 |
V | 1 | 12.5 | 17 | 2 | 3 | 13.7 | 13 | 10 | 12 | 16 |
Y | 27 | 14 | 32 | 40 | 14 | 31 | 42 | 40 | 38 | 26 |
Zr | 100 | 66 | 80 | 122 | 70 | 119 | 130 | 110 | 120 | 116 |
K/Rb | 242.89 | 238.82 | 204.07 | 301.25 | 162.15 | 158.37 | 198.34 | 199.00 | 163.90 | 216.77 |
Major | Granite gneiss | Biotite gneiss | Biotite granite | Charnockite | ||||||
---|---|---|---|---|---|---|---|---|---|---|
GGN1 | GGN2 | GGN3 | BGN1 | BGN2 | BG1 | BG2 | Ch1 | Ch2 | Ch3 | |
SiO2 | 74.40 | 73.86 | 74.58 | 73.62 | 67.80 | 60.06 | 59.83 | 57.50 | 58.72 | 59.70 |
TiO2 | 0.18 | 0.23 | 0.32 | 0.50 | 0.69 | 1.00 | 1.03 | 1.09 | 0.98 | 0.88 |
Al2O3 | 13.40 | 13.84 | 13.52 | 12.60 | 14.63 | 16.77 | 17.04 | 17.90 | 16.78 | 15.20 |
Fe2O3 | 3.26 | 3.83 | 3.68 | 3.58 | 5.33 | 6.66 | 6.68 | 6.70 | 6.68 | 6.73 |
MnO | 0.03 | 0.06 | 0.04 | 0.05 | 0.04 | 0.13 | 0.15 | 0.25 | 0.26 | 0.13 |
MgO | 0.27 | 0.32 | 0.21 | 0.76 | 1.00 | 3.02 | 2.92 | 2.41 | 3.02 | 3.11 |
CaO | 3.00 | 2.89 | 2.04 | 3.01 | 4.18 | 5.54 | 6.05 | 7.11 | 6.93 | 7.02 |
Na2O | 2.01 | 1.75 | 1.80 | 1.62 | 2.06 | 0.84 | 0.67 | 0.86 | 0.72 | 0.70 |
K2O | 2.40 | 2.59 | 3.00 | 3.63 | 2.54 | 2.29 | 2.39 | 2.35 | 2.37 | 3.03 |
P2O5 | ND | ND | ND | ND | ND | ND | ND | 0.01 | ND | 0.01 |
LOI | 0.51 | 0.58 | 0.71 | 0.90 | 1.40 | 3.25 | 3.03 | 2.86 | 3.15 | 2.45 |
TOTAL | 99.46 | 99.95 | 99.90 | 100.27 | 99.67 | 99.56 | 99.79 | 99.04 | 99.61 | 98.96 |
Minerals (vol.%) | GGN1b | GGN2b | BGN1b | BGN2b | BG1b | BG2b | Ch1b |
---|---|---|---|---|---|---|---|
Quartz | 29.40 | 26.60 | 26.40 | 26.40 | 25.30 | 21.40 | 22.30 |
K-feldspar | 28.60 | 23.30 | 21.60 | 23.40 | 22.30 | 18.00 | 18.30 |
Plagioclase feldspar | 34.50 | 35.20 | 31.00 | 33.20 | 32.00 | 28.30 | 32.30 |
Biotite | 6.10 | 8.40 | 10.10 | 10.20 | 14.90 | 25.40 | 8.40 |
Hornblende | - | 3.30 | 8.50 | 5.10 | 3.20 | 5.10 | 6.00 |
Muscovite | 0.90 | 2.50 | 1.40 | 1.20 | 2.00 | 1.00 | 5.30 |
Opaque | 0.60 | 0.70 | 0.90 | 0.60 | 0.80 | 0.90 | 0.40 |
Pyroxene | - | - | - | - | - | - | 7.70 |
Total | 100.10 | 100.00 | 99.90 | 100.10 | 100.50 | 100.10 | 100.70 |