Table 4 Average compositions of minerals from vein-type rodingite (131018-4A), serpentinite, and reaction zones
Rodingite (131018-4A) | Reaction zone | Serpentinite | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Di | Grt | Chl | Ilm | Ttn | Chl | Di | Prv | Ves | Srp | Tr | |
n = 4 | n = 11 | n = 1 | n = 4 | n = 5 | n = 21 | n = 3 | n = 10 | n = 5 | n = 9 | n = 7 | |
SiO2 | 54.56 | 39.04 | 27.76 | – | 30.48 | 34.15 | 53.30 | 0.06 | 35.97 | 41.19 | 58.20 |
TiO2 | – | 1.13 | – | 53.28 | 39.12 | – | 1.61 | 57.91 | 4.97 | – | – |
Al2O3 | – | 20.19 | 19.83 | – | 1.10 | 16.18 | – | – | 12.00 | 4.79 | – |
Fe2O3 | – | 4.96 | – | – | – | – | – | – | – | – | – |
FeO | 5.78 | – | 15.87 | 44.68 | – | 3.55 | 1.59 | 0.68 | 5.83 | 2.86 | 2.07 |
MnO | – | – | – | 1.62 | – | – | – | – | – | – | – |
MgO | 14.50 | – | 21.18 | 0.42 | – | 33.86 | 16.89 | – | 2.12 | 36.19 | 23.34 |
CaO | 25.47 | 34.70 | – | 0.05 | 28.89 | – | 26.38 | 40.95 | 35.99 | – | 13.17 |
Total | 100.31 | 100.02 | 84.64 | 100.05 | 99.59 | 87.74 | 99.77 | 99.60 | 96.88 | 85.03 | 96.78 |
O | 6 | 12 | 28 | 3 | 5 | 28 | 6 | 3 | 78 | 116 | 23 |
Si | 2.01 | 2.96 | 5.74 | – | 1.00 | 6.36 | 1.95 | – | 19.05 | 32.40 | 8.02 |
Ti | – | 0.06 | – | 0.76 | 0.96 | – | 0.05 | 0.98 | 1.99 | – | – |
Al | – | 1.81 | 4.83 | – | 0.04 | 3.55 | – | – | 7.44 | 4.43 | – |
Fe3+ | – | 0.28 | – | – | – | – | – | – | – | – | – |
Fe2+ | 0.18 | – | 2.74 | 0.94 | – | 0.55 | 0.05 | 0.01 | 2.65 | 1.91 | 0.24 |
Mn | – | – | – | 0.03 | – | – | – | – | – | – | |
Mg | 0.80 | – | 6.53 | 0.02 | – | 9.40 | 0.92 | – | 1.65 | 42.46 | 4.79 |
Ca | 1.01 | 2.82 | – | 0.25 | 1.01 | – | 1.04 | 0.99 | 20.45 | – | 1.94 |
Σcation | 4.00 | 7.93 | 19.84 | 2.00 | 3.01 | 19.86 | 4.01 | 1.98 | 53.23 | 81.20 | 14.99 |
XMg | 0.82 | 0.70 | 0.94 | 0.95 | 0.96 | 0.95 | |||||
XGrs | 0.87 | ||||||||||
XAdr | 0.13 | ||||||||||