Skip to main content

Table 4 Average compositions of minerals from vein-type rodingite (131018-4A), serpentinite, and reaction zones

From: Interplay of irreversible reactions and deformation: a case of hydrofracturing in the rodingite–serpentinite system

  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