Sample rock-type | GM1 albitite | PC11 quartz-rich breccia | PP1 quartzitic sandstone |
---|---|---|---|
Major elements (wt%) | |||
SiO2 | 64.8 | 71.1 | 54.9 |
TiO2 | 0.21 | 0.24 | 0.17 |
Al2O3 | 18.2 | 13.6 | 4.97 |
Fe2O tot3 | 3.36 | 2.89 | 0.95 |
MnO | 0.06 | 0.06 | 0.05 |
MgO | 0.50 | 0.69 | 1.06 |
CaO | 1.50 | 1.19 | 20.1 |
Na2O | 8.97 | 3.08 | 1.09 |
K2O | 0.12 | 4.56 | 1.02 |
P2O5 | 0.03 | 0.07 | 0.04 |
L.O.I | 0.85 | 1.99 | 16.2 |
Total | 98.6 | 99.5 | 100.5 |
Mg# | 22.8 | 32.1 | 68.9 |
CO2 | – | – | 15.2 |
SiO2/Al2O3 | 5.24 | 11.0 | |
Trace elements (ppm) | |||
V | 10 | 17 | 16 |
Cr | <20 | <20 | <20 |
Sc | <1 | 5 | 3 |
Co | 3 | 3 | <1 |
Cu | 160 | <10 | <10 |
Zn | 30 | 40 | <30 |
Ga | 35 | 14 | 5 |
Sn | 6 | 3 | 2 |
Rb | 2 | 196 | 34 |
Sr | 239 | 92 | 111 |
Ba | 20 | 528 | 101 |
Zr | 1,990 | 140 | 97.0 |
Nb | 15 | 10.5 | 3.70 |
Y | 91 | 27.8 | 16.4 |
Hf | 44.3 | 4.30 | 2.40 |
Ta | 1.80 | 1.25 | 0.46 |
Pb | 5 | 11 | 12 |
Th | 3.40 | 15.3 | 5.87 |
U | 1.90 | 3.29 | 2.10 |
La | 25.8 | 36.0 | 15.2 |
Ce | 58.9 | 68.9 | 26.2 |
Pr | 6.83 | 7.47 | 3.21 |
Nd | 26.2 | 26.0 | 12.2 |
Sm | 6.70 | 5.08 | 2.48 |
Eu | 1.15 | 0.77 | 0.46 |
Gd | 7.80 | 4.49 | 2.23 |
Tb | 1.70 | 0.78 | 0.37 |
Dy | 12.7 | 4.80 | 2.33 |
Ho | 3.00 | 0.99 | 0.48 |
Er | 10.6 | 2.96 | 1.41 |
Tm | 1.90 | 0.45 | 0.21 |
Yb | 14.7 | 3.01 | 1.38 |
Lu | 2.54 | 0.50 | 0.20 |
LaN/SmN | 2.41 | 7.46 | 6.45 |
GdN/YbN | 0.44 | 1.24 | 1.34 |
Eu/Eu* | 0.48 | 0.49 | 0.59 |