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A New Geochemistry Exploration Method to Identify Deep VMS-Type Deposits - Application to the Cu-Zn Neves-Corvo Deposit, Iberian Pyrite Belt

2026-06Artigo científico Acesso aberto
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datacite.subject.fosCiências Naturais::Ciências da Terra e do Ambiente
dc.contributor.authorMorais, Igor
dc.contributor.authorAlbardeiro, Luís
dc.contributor.authorRosado, Lúcia
dc.contributor.authorMirao, Jose
dc.contributor.authorXavier Matos, João Manuel
dc.contributor.authorBatista, Maria Joao
dc.contributor.authorSilva, Teresa
dc.contributor.authorBarrulas, Pedro
dc.contributor.authorde Oliveira, Daniel Pipa Soares
dc.date.accessioned2026-07-24T15:26:47Z
dc.date.available2026-07-24T15:26:47Z
dc.date.issued2026-06
dc.description.abstractABSTRACT: Mineral exploration in the Iberian Pyrite Belt follows increasingly deeper targets. The present study introduces an innovative methodology for the detection and identification of blind metallic mineral deposits, in particular volcanogenic massive sulfides based on surface rock coatings. This approach follows the identification pathways of upward metal escape routes and metal distribution in rock fractures located in different anisotropic or isotropic planes above the Neves-Corvo VMS deposit ore lenses, using VP-SEM-EDS and XRD. Coatings are dominated by poorly crystalline to amorphous phases, with goethite and birnessite as the main Fe- and Mn-bearing minerals. Copper, zinc and lead are systematically enriched in coatings developed above or near the ore bodies, reflecting chalcopyrite, sphalerite and galena acidic leaching. Tin shows a restricted and heterogeneous distribution, while Ni and Co display no systematic relationship with the ore bodies. Barium and late Ba-Pb-(Zn) mineralization along fault zones record VMS mineralization. Lead isotopic coating signatures overlap those of IPB massive sulfide deposits, confirming a dominant VMS-derived contribution. Fe-Mn coatings were formed by precipitation from ascending meteoric fluids that leached metals from massive sulfides, their alteration halos, and surrounding lithologies, preserving the geochemical footprint of buried mineralization. This approach constitutes a new patented exploration tool.eng
dc.identifier.citationMorais, I., Albardeiro, L., Rosado, L., Mirão, J., Matos, J. X., Batista, M. J., Silva, T., Barrulas, P., & de Oliveira, D. (2026). A New Geochemistry Exploration Method to Identify Deep VMS-Type Deposits - Application to the Cu-Zn Neves-Corvo Deposit, Iberian Pyrite Belt. In: Minerals, 2026, vol. 16 (6), article 607. https://doi.org/10.3390/min16060607
dc.identifier.doi10.3390/min16060607
dc.identifier.eissn2075-163X
dc.identifier.urihttp://hdl.handle.net/10400.9/6395
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relation.hasversionhttps://www.mdpi.com/2075-163X/16/6/607
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectGeochemistry
dc.subjectRocks
dc.subjectMineral exploration
dc.subjectMineralization
dc.subjectMassive sulfide deposits
dc.subjectGeochronology
dc.subjectIberian Pyrite Belt
dc.titleA New Geochemistry Exploration Method to Identify Deep VMS-Type Deposits - Application to the Cu-Zn Neves-Corvo Deposit, Iberian Pyrite Belteng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue6
oaire.citation.titleMinerals
oaire.citation.volume16
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMorais
person.familyNameAlbardeiro
person.familyNameRosado
person.familyNameMirao
person.familyNameXavier Matos
person.familyNameBatista
person.familyNameSilva
person.familyNameBarrulas
person.familyNamede Oliveira
person.givenNameIgor
person.givenNameLuís
person.givenNameLúcia
person.givenNameJose
person.givenNameJoão Manuel
person.givenNameMaria Joao
person.givenNameTeresa
person.givenNamePedro
person.givenNameDaniel Pipa Soares
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person.identifier.orcid0000-0003-4075-3667
person.identifier.orcid0000-0002-6338-8845
person.identifier.ridAGY-5000-2022
person.identifier.ridL-9359-2013
person.identifier.scopus-author-id8986127400
person.identifier.scopus-author-id7005481948
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