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Preliminary Integrated Analysis of Magnetic Susceptibility, Geochemistry, and Mineralogy in the Neves Corvo VMS District (MAQSIMAL Project)

2026-09-20Documento de conferência Acesso aberto
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datacite.subject.fosCiências Naturais::Ciências da Terra e do Ambiente
datacite.subject.fosCiências Naturais::Outras Ciências Naturais
dc.contributor.authorRepresas, Patricia
dc.contributor.authorBatista, Maria Joao
dc.contributor.authorAlbardeiro, Luís
dc.contributor.authorMarques, Fábio
dc.contributor.authorSilva, Teresa
dc.contributor.authorCarvalho, João
dc.contributor.authorXavier Matos, João Manuel
dc.date.accessioned2026-09-12T12:53:53Z
dc.date.available2026-09-12T12:53:53Z
dc.date.issued2026-09-20
dc.description.abstractABSTRACT: The MAQSIMAL project develops a multimodal airborne quantum-sensor prototype that simultaneously measures the 3D magnetic field, magnetic-field gradients and electromagnetic responses to improve sustainable mineral exploration. The Neves–Corvo mining district (Iberian Pyrite Belt, Portugal), a largely concealed volcanogenic massive sulphide (VMS) system, was selected as a test site to compare prototype data with existing geological and drilling information. This extended abstract reports initial surface-sample characterisation integrating magnetic susceptibility (KT-10; ∼150 outcrops), XRD mineralogy and portable XRF geochemistry (20 samples). Susceptibility values are strongly right-skewed (0–5.81×10−3 SI) and vary systematically with lithology: mafic volcanic rocks show the highest and most variable responses, whereas felsic volcanic, sedimentary and strongly sericitic/argillic rocks are consistently magnetically weak, consistent with magnetite destruction and/or dilution during alteration. XRD identifies alteration minerals (chlorite, sericite, kaolinite) and pXRF data differentiate mafic versus metasedimentary compositions and show a moderate sample-scale correlation between susceptibility and total Fe (r≈0.49). The combined datasets provide an internally consistent basis for early sensor calibration and motivate expanded paired sampling and spatial mapping to better link surface signatures with subsurface VMS-related lithologies and alteration.eng
dc.identifier.citationRepresas, P., Batista, M.J., Albardeiro, L., Marques,F., Pena, T., Carvalho, J., & Matos, J.X. (2026). Preliminary Integrated Analysis of Magnetic Susceptibility, Geochemistry, and Mineralogy in Neves Corvo VMS District (MAQSIMAL Project). In: NSG 2026: 7th Conference on Geophysics for Mineral Exploration and Mining, Sep 2026, Volume 2026, p.1 - 5. https://doi.org/10.3997/2214-4609.202620155
dc.identifier.doi10.3997/2214-4609.202620155
dc.identifier.urihttp://hdl.handle.net/10400.9/6456
dc.language.isoeng
dc.peerreviewedyes
dc.publisherEuropean Association of Geoscientists & Engineers
dc.relationMultimodal Airborne Quantum Sensor InstruMent for sustAinable expLoration
dc.relation.hasversionhttps://www.earthdoc.org/content/papers/10.3997/2214-4609.202620155
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectGeochemistry
dc.subjectMineralogy
dc.subjectMagnetic susceptibility
dc.subjectNeves-Corvo
dc.titlePreliminary Integrated Analysis of Magnetic Susceptibility, Geochemistry, and Mineralogy in the Neves Corvo VMS District (MAQSIMAL Project)eng
dc.typeconference object
dspace.entity.typePublication
oaire.awardNumberERA-MIN3/0001/2023
oaire.awardTitleMultimodal Airborne Quantum Sensor InstruMent for sustAinable expLoration
oaire.awardURIhttp://hdl.handle.net/10400.9/6455
oaire.citation.conferenceDate2026-09-20
oaire.citation.conferencePlaceThessaloniki, Greece
oaire.citation.endPage5
oaire.citation.startPage1
oaire.citation.titleNSG 2026: 7th Conference on Geophysics for Mineral Exploration and Mining
oaire.citation.volume2026
oaire.fundingStreamERA-MIN3 Concurso Transnacional Conjunto 2023
oaire.versionhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43
person.familyNameRepresas
person.familyNameBatista
person.familyNameAlbardeiro
person.familyNameMarques
person.familyNameSilva
person.familyNameCarvalho
person.familyNameXavier Matos
person.givenNamePatricia
person.givenNameMaria Joao
person.givenNameLuís
person.givenNameFábio
person.givenNameTeresa
person.givenNameJoão
person.givenNameJoão Manuel
person.identifierA-8080-2008
person.identifier92033
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person.identifier.ciencia-idC01A-B2B1-C2D0
person.identifier.ciencia-idB81A-A94B-E72A
person.identifier.ciencia-idB514-EE2B-870D
person.identifier.ciencia-idB916-C501-8AA3
person.identifier.ciencia-id1D16-E24A-F4E4
person.identifier.ciencia-idFE16-BE78-D4EA
person.identifier.orcid0000-0002-2987-2836
person.identifier.orcid0000-0003-0197-1004
person.identifier.orcid0000-0002-3826-260X
person.identifier.orcid0000-0002-4278-8348
person.identifier.orcid0000-0002-0306-1015
person.identifier.orcid0000-0003-2227-3918
person.identifier.orcid0000-0002-6108-1030
person.identifier.ridAGY-5000-2022
person.identifier.ridL-9359-2013
person.identifier.scopus-author-id7005481948
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