Artykuł w czasopiśmie
Brak miniatury
Licencja
ClosedAccessDostęp zamknięty
 

Origin of the chemical composition of São Francisco ultra-fresh thermal water (Itabira region, Minas Gerais, Brazil)

Uproszczony widok
dc.abstract.enGeochemical studies documented the composition of ultra-fresh thermal water in the Fazenda Giráu, near Itabira (Minas Gerais state, Brazil) for the first time. The studied water is characterized by temperature of 35 °C, very low electric conductivity (approx. 20 μS/cm), uncommon Mg–Ca–HCO3–NO3 hydrochemical type, and an elevated radon concentration (about 500 Bq/L). The presence of tritium suggests the modern age of studied water, contained in highly resistant quartzite-dominated aquifer rocks. Application of a geothermometric approach gave an estimation of the equilibrium temperature in the geothermal system at about 42 °C. Inverse geochemical modelling quantified water-rock reactions responsible for the observed groundwater chemistry. Decomposition of soil organic matter and decay of primary (feldspars, biotites, muscovite) and secondary (montmorillonites, illite) aluminosilicate minerals accompanied by kaolinite and gibbsite formation are the dominant processes forming chemical composition of water. The investigated water has balneotherapeutic potential due its elevated temperature and high concentrations of radon and silicic acid.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorDobrzyński, Dariusz
dc.contributor.authorDuliński, Marek
dc.contributor.authorBirski, Łukasz
dc.contributor.authorBarrett, Jordi
dc.date.accessioned2024-01-25T16:09:30Z
dc.date.available2024-01-25T16:09:30Z
dc.date.issued2021
dc.description.financePublikacja bezkosztowa
dc.description.volume134
dc.identifier.doi10.1016/J.APGEOCHEM.2021.105090
dc.identifier.issn0883-2927
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/115075
dc.identifier.weblinkhttps://www.sciencedirect.com/science/article/abs/pii/S0883292721002213
dc.languageeng
dc.pbn.affiliationearth and related environmental sciences
dc.relation.ispartofApplied Geochemistry
dc.relation.pages105090
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enGroundwater geochemistry
dc.subject.enThermal water
dc.subject.enGeochemical modelling
dc.subject.enGeothermometer
dc.subject.enTherapeutic water
dc.subject.enMinas Gerais
dc.subject.enBrazil
dc.titleOrigin of the chemical composition of São Francisco ultra-fresh thermal water (Itabira region, Minas Gerais, Brazil)
dc.typeJournalArticle
dspace.entity.typePublication