dc.creatorGlok Galli, Melisa
dc.creatorMartinez, Daniel Emilio
dc.creatorVadillo Pérez, Iñaki
dc.creatorSilva Busso, Adrián A.
dc.creatorBarredo, Silvia
dc.creatorQuiroz Londoño, Orlando Mauricio
dc.creatorTrezza, Mónica Adriana
dc.date.accessioned2021-09-09T14:23:58Z
dc.date.accessioned2022-10-15T11:02:38Z
dc.date.available2021-09-09T14:23:58Z
dc.date.available2022-10-15T11:02:38Z
dc.date.created2021-09-09T14:23:58Z
dc.date.issued2020-09
dc.identifierGlok Galli, Melisa; Martinez, Daniel Emilio; Vadillo Pérez, Iñaki; Silva Busso, Adrián A.; Barredo, Silvia; et al.; Multi-isotope (δ 2H, δ 18O, δ 13C-TDIC, δ 18O-TDIC, 87Sr/86Sr) and hydrochemical study on fractured-karstic and detritic shallow aquifers in the Pampean region, Argentina; Taylor & Francis Ltd; Isotopes In Environmental And Health Studies; 56; 5-6; 9-2020; 513-532
dc.identifier1025-6016
dc.identifierhttp://hdl.handle.net/11336/139983
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4378601
dc.description.abstractFluxes between fractured-karstified and detritic aquifers are commonly poorly understood in many environments. These two types of aquifers are in contact in the southeastern Pampean region in the Argentine Buenos Aires province, and the aim of this work is to analyze their relationship contributing to improve the hydrological model. A joint application of hydrochemical and multi-isotope (δ 2H, δ 18O, δ 13C-TDIC, δ 18O-TDIC, 87Sr/86Sr) tools was used. TDIC, δ 2H, δ 18O and δ 13C-TDIC allowed differentiating two main end members. Water in the Pampeano aquifer (PA) which is transferred from the fractured-karstic aquifer (F-KA) is characterised by high TDIC around 500–700 mg/L, isotopically depleted in 18O (about −5.5 ‰) and high δ 13C-TDIC (around −10.0 ‰). The other end member is direct recharge water infiltrated into the PA with TDIC ranging from 400 to 500 mg/L, slightly enriched in 18O (δ 18O = −4.8 ‰), and δ 13C-TDIC in the range of soil CO2 as a result of reactions with calcrete concretions (from −20.0 to −9.0 ‰). Dolomite dissolution is the main process controlling the chemistry of the low-mineralized (Mg–Ca-HCO3) waters, whereas high-mineralized (Na-HCO3) waters are strongly influenced by ion-exchange reactions with adsorbed Ca2+ and Mg2+ and by evaporation.
dc.languageeng
dc.publisherTaylor & Francis Ltd
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/10256016.2020.1825412
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/10256016.2020.1825412
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject87SR/86SR
dc.subjectARGENTINE PAMPEAN REGION
dc.subjectCARBON-13
dc.subjectFRACTURED-KARSTIC AQUIFERS
dc.subjectHYDROGEN-2
dc.subjectISOTOPE HYDROLOGY
dc.subjectOXYGEN-18
dc.subjectPAMPEANO AQUIFER
dc.subjectTDIC
dc.titleMulti-isotope (δ 2H, δ 18O, δ 13C-TDIC, δ 18O-TDIC, 87Sr/86Sr) and hydrochemical study on fractured-karstic and detritic shallow aquifers in the Pampean region, Argentina
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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