Table 3.
Fluid Compositions Used in the Modeling
| AW | GPW | GPW 185 mbar | |
|---|---|---|---|
| Cl− | 0.587E-1 | 5.76E-3 | 5.76E-3 |
| SO42− | 0.285E-2 | 3.97E-3 | 3.97E-3 |
| HCO3− | 0.168E-4 | 1.68E-4 | 0.62E-2 |
| SiO2 | - | 3.49E-5 | 3.49E-5 |
| Ca2+ | 0.250E-2 | 1.41E-5 | 1.41E-5 |
| Mg2+ | 0.205E-1 | 1.27E-8 | 1.27E-8 |
| Fe2+ | 0.919E-2 | - | - |
| K+ | - | 5.02E-4 | 5.02E-4 |
| Na+ | - | 9.20E-3 | 9.20E-3 |
| Mn2+ | 4.36E-8 | 4.36E-8 |
Adapted water (AW) is a fluid calculated from Deccan Trap fluids [Minissale et al., 2000[ and adapted to Martian Fe/Ca/Mg ratios. For details, see text and Schwenzer and Kring [2009[. Gale Portage Water (GPW) is a fluid deduced from an initial reaction of diluted AW (×10,000) with rocks at Gale Crater (see text). Note that this table summarizes element concentrations, but those are represented typically by a set of 112 ionic species during runs. Only values above 10−10 were taken into account for GPW. Units are shown in moles.