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Groundwater flow processes and mixing in active volcanic systems: The case of Guadalajara (Mexico)

dc.creatorHERNANDEZ ANTONIO, ARTURO; 96241
dc.creatorMAHLKNECHT, JURGEN; 120939
dc.creatorTAMEZ MELENDEZ, CAROL; 492616
dc.creatorRAMIREZ OROZCO, ALDO IVAN; 21956
dc.creatorPARRA SALDIVAR, ROBERTO; 35753
dc.creatorORNELAS SOTO, NANCY EDITH; 105465
dc.creatorHERNANDEZ ANTONIO, ARTURO; 96241es
dc.creatorMAHLKNECHT, JURGEN; 120939es
dc.creatorTAMEZ MELENDEZ, CAROL; 492616es
dc.creatorRAMIREZ OROZCO, ALDO IVAN; 21956es
dc.creatorPARRA SALDIVAR, ROBERTO; 35753es
dc.creatorORNELAS SOTO, NANCY EDITH; 105465es
dc.date2015
dc.date.accessioned2018-10-18T21:22:03Z
dc.date.available2018-10-18T21:22:03Z
dc.identifier.issn10275606
dc.identifier.doi10.5194/hess-19-3937-2015
dc.identifier.urihttp://hdl.handle.net/11285/630462
dc.descriptionGroundwater chemistry and isotopic data from 40 production wells in the Atemajac and Toluquilla valleys, located in and around the Guadalajara metropolitan area, were determined to develop a conceptual model of groundwater flow processes and mixing. Stable water isotopes (δ2H, 18O) were used to trace hydrological processes and tritium (3H) to evaluate the relative contribution of modern water in samples. Multivariate analysis including cluster analysis and principal component analysis were used to elucidate distribution patterns of constituents and factors controlling groundwater chemistry. Based on this analysis, groundwater was classified into four groups: cold groundwater, hydrothermal groundwater, polluted groundwater and mixed groundwater. Cold groundwater is characterized by low temperature, salinity, and Cl and Na concentrations and is predominantly of Na-HCO3-type. It originates as recharge at "La Primavera" caldera and is found predominantly in wells in the upper Atemajac Valley. Hydrothermal groundwater is characterized by high salinity, temperature, Cl, Na and HCO3, and the presence of minor elements such as Li, Mn and F. It is a mixed-HCO3 type found in wells from Toluquilla Valley and represents regional flow circulation through basaltic and andesitic rocks. Polluted groundwater is characterized by elevated nitrate and sulfate concentrations and is usually derived from urban water cycling and subordinately from agricultural return flow. Mixed groundwaters between cold and hydrothermal components are predominantly found in the lower Atemajac Valley. Twenty-seven groundwater samples contain at least a small fraction of modern water. The application of a multivariate mixing model allowed the mixing proportions of hydrothermal fluids, polluted waters and cold groundwater in sampled water to be evaluated. This study will help local water authorities to identify and dimension groundwater contamination, and act accordingly. It may be broadly applicable to other active volcanic systems on Earth. © Author(s) 2015.
dc.languageeng
dc.publisherCopernicus GmbH
dc.relationhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84942578086&doi=10.5194%2fhess-19-3937-2015&partnerID=40&md5=ccbf3f93575042436c4d67a699e5370f
dc.relationInvestigadores
dc.relationEstudiantes
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.sourceHydrology and Earth System Sciences
dc.subjectChemical analysis
dc.subjectCluster analysis
dc.subjectGroundwater
dc.subjectGroundwater flow
dc.subjectHydrochemistry
dc.subjectIsotopes
dc.subjectLandforms
dc.subjectManganese
dc.subjectMixing
dc.subjectMultivariant analysis
dc.subjectPrincipal component analysis
dc.subjectSodium
dc.subjectTemperature
dc.subjectVolcanoes
dc.subjectWater pollution
dc.subjectDistribution patterns
dc.subjectGroundwater chemistry
dc.subjectGroundwater contamination
dc.subjectHydrological process
dc.subjectMulti variate analysis
dc.subjectRelative contribution
dc.subjectStable water isotopes
dc.subjectSulfate concentrations
dc.subjectGroundwater pollution
dc.subjectconcentration (composition)
dc.subjectgroundwater flow
dc.subjectgroundwater pollution
dc.subjecthydrological modeling
dc.subjecthydrothermal fluid
dc.subjectisotopic analysis
dc.subjectmixing
dc.subjecttritium
dc.subjectvolcanology
dc.subjectwater chemistry
dc.subjectwell water
dc.subjectGuadalajara [Jalisco]
dc.subjectJalisco
dc.subjectLa Primavera Geothermal Field
dc.subjectMexico [North America]
dc.subject.classification7 INGENIERÍA Y TECNOLOGÍA
dc.titleGroundwater flow processes and mixing in active volcanic systems: The case of Guadalajara (Mexico)
dc.typeArtículo
dc.identifier.volume19
dc.identifier.issue9
dc.identifier.startpage3937
dc.identifier.endpage3950
refterms.dateFOA2018-10-18T21:22:03Z


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