Rock type | Mnz-bearing dikes | Grt-bearing granite | Bt-bearing granite | Kfs-granite | ||||||||||
Sample | R3/2.0 | R3/4.0 | R7/3.5 | R8/17.5 | R14/3.8 | R12/7.0 | R2/54.0 | R9/30.0 | R16/4.10 | R16/7.1 | R16/9.1 | R7/5.5 | R8/5.5 | R9/8.0 |
Na2O | 6.5 | 5.9 | 5.5 | 6.0 | 6.6 | 5.3 | 4.4 | 3.6 | 4.9 | 4.2 | 4.4 | 3.02 | 2.43 | 2.83 |
MgO | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.6 | 0.5 | 1.5 | 0.5 | 0.4 | 0.5 | 0.07 | 0.11 | 0.12 |
Al2O3 | 21.3 | 20.0 | 18.7 | 19.4 | 22.3 | 18.3 | 17.7 | 15.5 | 17.7 | 17.2 | 17.7 | 14.9 | 14.2 | 14.8 |
SiO2 | 64.6 | 59.8 | 66.7 | 66.8 | 59.2 | 65.6 | 67.0 | 68.3 | 67.0 | 68.1 | 67.0 | 73.9 | 74.9 | 73.8 |
P2O5 | 0.4 | 2.3 | 0.3 | 0.7 | 1.6 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.05 | 0.05 | 0.07 |
K2O | 1.1 | 1.2 | 1.9 | 0.9 | 1.4 | 1.1 | 2.7 | 2.0 | 1.3 | 2.8 | 2.7 | 6.46 | 6.86 | 6.43 |
CaO | 4.3 | 4.0 | 3.7 | 3.9 | 4.2 | 2.9 | 2.6 | 2.9 | 2.8 | 2.4 | 2.6 | 0.68 | 0.55 | 0.70 |