Table 2.

Input data for the model.

Rock composition [wt. %]		Fluid composition [10−7 moles]
SiO2	51.81	Cl−	51.7
Al2O3	14.21	SiO2 (aq)	0.34
Fe2O3	13.09	Al3+	0.37
MgO	4.79	Ca2+	0.21
CaO	4.97	Mg2+	0.38
Na2O	3.83	Fe2+	0.01
K2O	0.19	K+	0.24
MnO	0.22	Na+	49.8
P2O5	0.38	${\text{HPO}}_4^{2-}$	0.32

Species in the fluid are summarized in the table as one species, but during the modeling were partitioned into several dissolved species (for details see text).