Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5754539 | Journal of Geochemical Exploration | 2017 | 41 Pages |
Abstract
Geochemical modeling using Geochemist's Workbench (GWB) and PHREEQC software enabled the computation of the saturation index of mineral phases with ions in solution and speciation ions. Groundwater was initially in equilibrium with calcite; however, due to the changes in hydrogeological conditions, gypsum and dolomite are being dissolved until new equilibrium conditions are met. The additional calcium and carbonate in the water causes calcite to become oversaturated and to precipitate. Evidence of dedolomitization reactions and common ion effect is illustrated by concurrent increases in calcium and magnesium concentrations in the groundwater.
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Authors
Edith R. Salcedo Sánchez, SofÃa E. Garrido Hoyos, Ma. Vicenta Esteller, Manuel MartÃnez Morales, Ariadna Ocampo Astudillo,