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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
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Salt Marsh
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Patagonia
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Arid Climate
dc.subject.classification
Oceanografía, Hidrología, Recursos Hídricos
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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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