Estabilidad de los minerales de la arcilla en las relaciones de interacción arcosas-agua subterránea en el acuífero de Campo Arañuelo

• l. Muñóz ^[1] ; A. De Andrés ^[2] ; R. Vicente ^[1]
  1. [1] Dpto.de Geología, Univ. de Alcalá. Nal. II, Km. 33,600 Alcalá de Henares-28871 (Madrid}
  2. [2] lnst. C. de Materiales, C.S.I.C. Camino de Valdelatas s/n, Cantoblanco-28049 (Madrid).
• Localización: Geogaceta, ISSN 0213-683X, Nº. 20, 6 (Comunicaciones presentadas en el IV Congreso Nacional de Geología, Alcalá de Henares, 1996), 1996, págs. 1307-1310
• Idioma: español
• Títulos paralelos:
  • Clay minerals stability in the arkoses-groundwater interaction of Campo Arañuelo aquifer
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• Resumen

  • The equilibrium state of silicate minerals with groundwater in an aquifer can be known from the saturation state obtained by speciation codes, like WATEQ4F, or from stability mineral diagrams. In the study of the groundwater-rock interaction in an hydrogeological profile of Campo Arañuelo aquifer, the code WATEQ4F shows that kaolinite seems to be the unique clay mineral involved in dissolution reactions, while stability diagrams indicate smectites as the stable clay minerals in the solution. Nevertheless, after pH values, mineralization of water samples and H4SiO4 activity, smectites seems to be the clay mineral that most probably will be formed by the arkoses-groundwater interaction in this aquifer