Evolución geoquímica de las salmueras de las Lagunas de Monegros (Zaragoza, España) y análisis del equilibrio de la halita

I. Garcés; J. M. Tena; L. Auqué; J. Mandado; M. J. Gimeno

doi:10.3989/egeol.92483-4374

Evolución geoquímica de las salmueras de las Lagunas de Monegros (Zaragoza, España) y análisis del equilibrio de la halita

Authors

I. Garcés Departamento de Ingeniería Quimica. Universidad de Antofagasta
J. M. Tena Area Petrología y Geoquímica. Facultad de Ciencias, Universidad de Zaragoza
L. Auqué Area Petrología y Geoquímica. Facultad de Ciencias, Universidad de Zaragoza
J. Mandado Area Petrología y Geoquímica. Facultad de Ciencias, Universidad de Zaragoza
M. J. Gimeno Area Petrología y Geoquímica. Facultad de Ciencias, Universidad de Zaragoza

DOI:

https://doi.org/10.3989/egeol.92483-4374

Keywords:

Brines, playa-lake, Monegros, evaporation, polinomial smoothing, geochemical modelling, halite, Saturation Index, activity

Abstract

Statistical analysis of geochemical data for brines from La Playa lake (Los Monegros, Zaragoza) has shown the existence of sampling-gaps during the whole evaporation process. But trends analysis with polinomial smoothing allow to recognize brine concentration paths and to verify the chemical divide concepto Physicochemical modelling with WATEQ4F and SOLMINEQ.88 for a_Na⁺ and a_Cl^- and halite saturation index determination shows the discrepancies among different approaches for activity coefficients calculations. The final conclusion is that only Pitzer formulation is adequate for this high ionic force waters, but in this case, D extended Debye-Hückel equation is not excessively defficient.

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Published

1992-08-30

How to Cite

Garcés, I., Tena, J. M., Auqué, L., Mandado, J., & Gimeno, M. J. (1992). Evolución geoquímica de las salmueras de las Lagunas de Monegros (Zaragoza, España) y análisis del equilibrio de la halita. Estudios Geológicos, 48(3-4), 101–110. https://doi.org/10.3989/egeol.92483-4374

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Issue

Vol. 48 No. 3-4 (1992)

Section

Articles

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