Hydrochemical and isotopic characterization of the hydrological budget of a MAB Reserve: Mar Chiquita lagoon, province of Buenos Aires, Argentina

cic.isFulltext true es
cic.isPeerReviewed true es
cic.lugarDesarrollo Centro de Estudios Integrales de la Dinámica Exógena es
cic.version info:eu-repo/semantics/submittedVersion es
dc.date.accessioned 2017-05-23T14:35:47Z
dc.date.available 2017-05-23T14:35:47Z
dc.identifier.uri https://digital.cic.gba.gob.ar/handle/11746/5774
dc.title Hydrochemical and isotopic characterization of the hydrological budget of a MAB Reserve: Mar Chiquita lagoon, province of Buenos Aires, Argentina es
dc.type Artículo es
dcterms.abstract Mar Chiquita is a coastal lagoon located in the Argentine Buenos Aires province in South America. The aim of this study was to perform a hydrochemical and stable isotopes characterization in order to better the understanding of the hydrology of the Mar Chiquita lagoon’s catchment and its water budget. Groundwater samples were taken from 144 wells and 21 samples from main streams, and seven lagoon water samples were also collected. Chemical analyses were carried out using standard laboratory methods, and isotopic determinations were made through laser spectroscopy using a DLT-100 liquid–water isotope analyzer. Hydrochemical analysis permits a general classification of groundwater and streamwater as sodium bicarbonate waters, while the lagoon chemical composition shows an evolution toward seawater composition, from the north to its mouth, which is located southerly. Isotopic data show a source of aquifer recharge from rainfall and a groundwater domain into the streams’ flow. Three main components can be recognized as end members in a plot of electrical conductivity (EC) versus δ¹⁸O: seawater, streamwater and groundwater. Obtained EC values for groundwater in the discharge zone (EC average value=3,516μS/cm) allow minimizing its direct contribution and to take into consideration two dominating end members: streamwater and seawater. Mar Chiquita lagoon’s water falls close to the line between streamwater and seawater end members according to its EC and δ¹⁸O. en
dcterms.creator.author Glok Galli, Melisa es
dcterms.creator.author Martínez, Daniel Emilio es
dcterms.creator.author Kruse, Eduardo es
dcterms.creator.author Grondona, Sebastián Ivan es
dcterms.creator.author Lima, María Lourdes es
dcterms.extent 15 p. es
dcterms.identifier.other 10.1007/s12665-014-3187-8 es
dcterms.identifier.url Recurso Completo es
dcterms.isPartOf.issue vol. 72, no. 8 es
dcterms.isPartOf.series Environmental Earth Sciences es
dcterms.issued 2014-10
dcterms.language Inglés es
dcterms.license Attribution 4.0 International (BY 4.0) es
dcterms.subject Mar Chiquita lagoon’s catchment en
dcterms.subject Hydrochemistry Isotope hydrology en
dcterms.subject Hydrogeochemical modeling en
dcterms.subject Hydrological budget en
dcterms.subject.materia Oceanografía, Hidrología, Recursos Hídricos es
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