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Influence of sulphide mine tailings on drainage water quality, 60 years after its abandonment: A case study in SW Portugal

2025-04Journal article Open access
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datacite.subject.fosCiências Naturais::Ciências da Terra e do Ambiente
dc.contributor.authorFonseca Araújo, Joana
dc.contributor.authorFonseca, Rita
dc.contributor.authorAlbuquerque, Maria Teresa
dc.contributor.authorSilva, Natália
dc.contributor.authorda Silva, Roberto
dc.date.accessioned2025-05-30T14:49:52Z
dc.date.available2025-05-30T14:49:52Z
dc.date.issued2025-04
dc.description.abstractABSTRACT: The GeoMatRe project aims to find low-cost solutions for water and sediment rehabilitation using raw geomaterials, in abandoned mines of the Iberian Pyritic Belt. One of our case studies is the Caveira mine in southwestern Portugal, where large piles of mining waste, containing significant amounts of metals, record the long history of its exploitation for gold (Au) and silver (Ag). After the exhaustion of its reserves, the extraction of the remaining metals (cooper (Cu), lead (Pb) and zinc (Zn)) and sulphur (S) continued, until its abandonment during the 60s of 20th century. This work has two objectives: (i) to study the influence of mine and mine tailings drainage on water quality by analysing the dissolved and particulate material in drainage waters, and (ii) to determine whether there are differences in the contamination level of these waters according to the different weather conditions of the last two winters.eng
dc.description.abstractRESUMO: O projeto GeoMatRe tem como objetivo encontrar soluções de baixo custo para a remediação de águas e sedimentos utilizando geomateriais, em minas abandonadas da Faixa Piritosa Ibérica. Um dos nossos casos de estudo é a mina de Caveira, no sudoeste de Portugal, onde grandes quantidades de resíduos mineiros acumulados, contendo quantidades significativas de metais, registam a longa história da sua exploração de ouro (Au) e prata (Ag). Após o fim das suas reservas, a extração dos restantes metais (cobre (Cu), chumbo (Pb) e zinco (Zn)) e enxofre (S) continuou, até ao seu abandono durante os anos 60 do século XX. Este trabalho tem dois objetivos: (i) estudar a influência da drenagem da mina e dos rejeitos mineiros deixados ao abandono, sobre a qualidade da água, através da análise do material dissolvido e particulado nas águas de drenagem, e (ii) determinar se existem diferenças nos sues níveis de contaminação em função das diferentes condições meteorológicas dos dois últimos Invernos.por
dc.identifier.citationAraújo, J.F., Fonseca, R., Albuquerque, T., Silva, N. & da Silva, R. (2025). Influence of sulphide mine tailings on drainage water quality, 60 years after its abandonment: A case study in SW Portugal. In: Comunicações Geológicas, 2025, vol. 112, Fascículo Especial I, pp. 247-251. https://doi.org/10.34637/en1y-dt74
dc.identifier.doi10.34637/en1y-dt74
dc.identifier.eissn1647-581X
dc.identifier.issn0873-948X
dc.identifier.urihttp://hdl.handle.net/10400.9/5825
dc.language.isoeng
dc.peerreviewedyes
dc.publisherLNEG - Laboratório Nacional de Energia e Geologia
dc.relationResearch Centre for Mathematics and Applications
dc.relation.hasversionhttps://www.lneg.pt/wp-content/uploads/2025/04/49_Araujo-et-al.pdf
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectPotentially toxic elements
dc.subjectSulphide mine
dc.subjectCaveira mine
dc.subjectWater quality
dc.subjectElementos potencialmente tóxicos
dc.subjectMina de sulfuretos
dc.subjectMina de Caveira
dc.subjectQualidade da água
dc.titleInfluence of sulphide mine tailings on drainage water quality, 60 years after its abandonment: A case study in SW Portugaleng
dc.title.alternativeInfluência dos rejeitos de uma mina de sulfuretos na qualidade da água de drenagem, 60 anos após o seu abandono: Caso de estudo no SW de Portugalpor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleResearch Centre for Mathematics and Applications
oaire.awardURIhttp://hdl.handle.net/10400.9/5824
oaire.citation.endPage251
oaire.citation.issueEspecial I
oaire.citation.startPage247
oaire.citation.titleComunicações Geológicas
oaire.citation.volume112
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameFonseca Araújo
person.familyNameFonseca
person.familyNameAlbuquerque
person.familyNameSilva
person.familyNameda Silva
person.givenNameJoana
person.givenNameRita
person.givenNameMaria Teresa
person.givenNameNatália
person.givenNameRoberto
person.identifier.ciencia-id2617-7BC7-DE98
person.identifier.ciencia-idC01B-A2A9-3C0A
person.identifier.ciencia-id2E10-5728-2FA7
person.identifier.orcid0000-0003-4956-4061
person.identifier.orcid0000-0002-6389-2822
person.identifier.orcid0000-0002-8782-6133
person.identifier.orcid0000-0003-4892-0570
person.identifier.orcid0000-0003-3865-8724
person.identifier.scopus-author-id18634176400
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Volume 112 (2025) Fascículo Especial I - XI Congresso Nacional de Geologia