La participación de los yesos en la salinización de las aguas superficiales de la Cuenca del Ebro. III. Metodología de cuantificación
[EN] The present study proposes a methodology to quantify the contribution of gypsum to the salinization of surface waters in the Ebro river basin. This approach assumes the existence of chemical equilibrum, and linear regressions between ions are used in order to identify the salt that produced the...
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| Formato: | artículo |
| Fecha de publicación: | 1989 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/12825 |
| Acesso em linha: | http://hdl.handle.net/10261/12825 |
| Access Level: | acceso abierto |
| Palavra-chave: | Yesos Cuantificación Salinidad Aguas superficiales Cuenca del Ebro |
| Resumo: | [EN] The present study proposes a methodology to quantify the contribution of gypsum to the salinization of surface waters in the Ebro river basin. This approach assumes the existence of chemical equilibrum, and linear regressions between ions are used in order to identify the salt that produced them. The lithological and hydrogeochemical characteristics of each catchment are also considered in order to asses the amount of calcium derived from carbonate dissolution, by means of equations of charge balance and chemical equilibrium equations in the calcite-dolomite system. Once this contribution is subtracted from total calcium concentration, it is decided whether the sulphate ion or the calcium ion is the best indicator of gypsum, based on the existence or lack of correlation between them both and also on the analysis of other relationships between the ions that contribute to salinity. |
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