Table 1 Initial abundance of primary and secondary phases applied to the model.
From: Reactive transport modelling of an intra-basalt sandstone reservoir, Rosebank, UK
Initial abundance (XRD%) | 1LogK0 | |
|---|---|---|
Primary minerals (chemical formula) | ||
Sandstone | ||
2Quartz (SiO2) | 67 | – |
2 K-feldspar (KAlSi3O8) | 10 | – |
2Plagioclase (Ca0.2Na0.8Al1.2Si2.8O8) | 23 | – |
Basalt | ||
3Basalt (Na0.096K0.003Fe0.210Mg0.217Al0.350Ca0.268Si1.000O3.379) | 100 | – |
Secondary minerals | ||
Calcite (CaCO3) | 0 | 1.8487 |
Siderite (FeCO3) | 0 | − 11.0441 |
Amorphous SiO2 (SiO2) | 0 | − 2.7136 |
Chamosite (Fe5Al2Si3O10(OH)8) | 0 | 32.8416 |
Saponite-Mg-Fe (Fe0.175Mg3Al0.35Si3.65O10(OH)2) | 0 | 27.6789 |
Nontronite-Mg (Mg0.175Fe2Al0.35Si3.65H2O12) | 0 | − 11.6200 |
Illite (KAl3Si3O10(OH)2) | 0 | 13.5858 |
Analcime (Na0.96Al0.96Si2.04O6:1H2O) | 0 | − 15.4836 |
Boehmite (AlO(OH)) | 0 | 7.5642 |
Albite (NaAlSi3O8) | 0 | 2.7645 |
