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dc.contributor.author Alvarez, Maria del Pilar
dc.contributor.author Dapeña, Cristina
dc.contributor.author Bouza, Pablo Jose
dc.contributor.author Ríos, Ileana
dc.contributor.author Hernandez, Mario Alberto
dc.date.available 2017-02-02T20:19:24Z
dc.date.issued 2014-12
dc.identifier.citation Alvarez, Maria del Pilar; Dapeña, Cristina; Bouza, Pablo Jose; Ríos, Ileana; Hernandez, Mario Alberto; Groundwater salinization in arid coastal wetlands: a study case from Playa Fracasso, Patagonia, Argentina; Springer; Environmental Earth Sciences; 73; 12; 12-2014; 7983-7994
dc.identifier.issn 1866-6280
dc.identifier.uri http://hdl.handle.net/11336/12382
dc.description.abstract The origin of the high salinity in the groundwater of acoastal wetland in an arid climate was studied in the Playa Fracasso marsh, located on the northwestern coast of the extra-Andean Patagonia. Research was carried out by means of the design of a network of soil pits and short iezometers in the marsh and the surrounding landforms.Continuous fluctuations of the water table, in situ physical and chemical properties, major ions (Ca2+, Mg2+, Na+, K+, Cl−, SO42−, HCO3−) and stable isotopes (18O and 2H) in groundwater, as well as soil salinity, were measured. The combined analysis of the hydrodynamics, the ion ratios rCa2+/rCl−,and rMg2+/rCa2+vs.rCl−and the isotopic composition made it possible to recognize an area within the high marsh in which the origin of groundwater is mainly marine and another in which the contributions are of mixed origin. By means of the analysis of 18O vs. Cl−, a salinization process with no change in isotopic composition was identified. Its interpretation, together with those of the soil salinity profiles and the records of the fluctuations in electrical conductivity associated withextraordinary tides, was used to develop a conceptual model of salinization for coastal wetlands in arid zones. It consists in a cyclical mechanism of evaporatranspiration, precipitation, dissolution and transport of salts during tides.
dc.format application/pdf
dc.language.iso eng
dc.publisher Springer
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject GEOHYDROLOGY
dc.subject HIDROCHEMISTRY
dc.subject SALT MARSH
dc.subject PATAGONIA
dc.subject ARID CLIMATE
dc.subject.classification Oceanografía, Hidrología, Recursos Hídricos
dc.subject.classification Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Groundwater salinization in arid coastal wetlands: a study case from Playa Fracasso, Patagonia, Argentina
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2016-11-23T19:42:55Z
dc.journal.volume 73
dc.journal.number 12
dc.journal.pagination 7983-7994
dc.journal.pais Alemania
dc.journal.ciudad Berlin
dc.description.fil Fil: Alvarez, Maria del Pilar. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Catedra de Hidrogeologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Dapeña, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotópica (i); Argentina
dc.description.fil Fil: Bouza, Pablo Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
dc.description.fil Fil: Ríos, Ileana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
dc.description.fil Fil: Hernandez, Mario Alberto. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Catedra de Hidrogeologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title Environmental Earth Sciences
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s12665-014-3957-3
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s12665-014-3957-3


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)