Abstract
Calculations of the saturation of groundwaters with respect to minerals of the rocks hosting these waters indicate that most of the analyzed groundwaters were saturates with respect to calcite, dolomite, and quartz. Brines of chloride-calcic composition were determined to be saturated with respect to calcite, whereas brines of chloride-sodic composition are saturated with respect to dolomite and quartz. The solution was simultaneously saturated with respect to six minerals for the association ankerite-calcite-dolomite-pyrite-quartz-strontianite. An increase in the number of minerals with respect to which solution is saturated is correlated with an increase in the diversity of types of groundwaters and an increase in the runoff rate. The paper proposes possible avenues for searches for relations between hydrogeological and geochemical parameters that make it possible to adapt the thermodynamic models to real geological-hydrogeological conditions.
The research was centered on the testing of groundwaters for their saturation with respect to minerals of the rocks hosting these waters. This parameter plays a significant part in forming the geochemical type of natural waters because it reflects the crystallization of a mineral from a solution and, consequently, the removal of an element from the aqueous solution.
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Original Russian Text © O.A. Limantseva, A.B. Lisenkov, 2008, published in Geokhimiya, 2008, No. 7, pp. 734–747.
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Limantseva, O.A., Lisenkov, A.B. Saturation of groundwaters with respect to minerals of the host rocks. Geochem. Int. 46, 679–692 (2008). https://doi.org/10.1134/S0016702908070033
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DOI: https://doi.org/10.1134/S0016702908070033