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Time-space evolution of Iberian Pyrite Belt igneous activity: Volcanic and plutonic lineaments, geochronology, ore horizons and stratigraphic constraints

dc.contributor.authorAlbardeiro, Luís
dc.contributor.authorMorais, Igor
dc.contributor.authorMatos, João Xavier
dc.contributor.authorSolá, A. Rita
dc.contributor.authorSalgueiro, Rute
dc.contributor.authorPereira, Zélia
dc.contributor.authorMendes, Márcia
dc.contributor.authorBatista, Maria Joao
dc.contributor.authorde Oliveira, Daniel Pipa Soares
dc.contributor.authorDiez-Montes, Alejandro
dc.contributor.authorInverno, Carlos
dc.contributor.authorPacheco, Nelson
dc.contributor.authorAraújo, Vítor
dc.date.accessioned2023-08-09T10:13:48Z
dc.date.available2023-08-09T10:13:48Z
dc.date.issued2023-09
dc.description.abstractABSTRACT: The volcanism in the Iberian Pyrite Belt migrated from the present day west/southwest to the east/northeast during Devonian/Carboniferous times. Evidence is here discussed based in U-Pb zircon ages of felsic volcanic and plutonic rocks, bounded by enclosed sediments and their biostratigraphic ages, together with hosted massive sulphides deposits and associated plutonic counterparts.Volcano-Sedimentary Complex rocks define several volcanic axes, or lineaments, with the general NWSE to WNW-ESE belt trending orientation. The usage of all the available data from high-resolution stratigraphy, geology and geophysics lead to establishment of eleven main volcanic axes, nine with zircon U-Pb radiometric ages (166 samples).In this research, we reinforce a previous inter-axes volcanic evolutionary trend, but we also suggest an intra-axis evolutionary trend of the IPB igneous activity with time. This means the basin igneous activity also evolved along most of the volcanic and plutonic lineaments, from west/northwest to east/southeast.Successive weighted average ages for each axis (SW to NE) and opposite end-point sample ages for each axis (NW/W to SE/E) are presented. Similar trends are found with felsic volcanic rocks, subvolcanic and plutonic rocks and even massive sulphide ages correspond to the regional trend corroborating the proposed geological framework.Siliciclastic sediments and lower VSC sequences (sediments, felsic volcanic rocks and massive sulphides) show a comparable age trending evolution although upper VSC sediments seem to be contemporaneous across the province. Older ages, from zircon U-Pb and from associated reworked palynomorph in the sediments, show a long-lasting age distribution along most Devonian times, suggesting the IPB evolved since Lochkovian times (Lower Devonian). Therefore, we propose the IPB inter-axes evolution could be related with a NE-direction plate motion (present-day location) over a heat source, while intra-axes are probably due to the collisional/compressive tectonic interaction of South Portuguese - Ossa-Morena zones tectonic setting.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAlbardeiro, L... et.al - Time-space evolution of Iberian Pyrite Belt igneous activity: Volcanic and plutonic lineaments, geochronology, ore horizons and stratigraphic constraints. In: Gondwana Research, 2023, vol. 121, p. 235-258 [Early Access May 2023]pt_PT
dc.identifier.doi10.1016/j.gr.2023.05.004pt_PT
dc.identifier.eissn1878-0571
dc.identifier.issn1342-937X
dc.identifier.urihttp://hdl.handle.net/10400.9/4130
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationEXPLORA project Op ALT20-03-0145-FEDER-00002pt_PT
dc.relationGEO_FPI project (0052_GEO_FPI_5_E. IGME-LNEG)pt_PT
dc.relation.publisherversionhttps://doi.org/10.1016/j.gr.2023.05.004pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectIberian Pyrite Beltpt_PT
dc.subjectDevonianpt_PT
dc.subjectCarboniferouspt_PT
dc.subjectVolcanic stratigraphypt_PT
dc.subjectU-Pb geochronologypt_PT
dc.titleTime-space evolution of Iberian Pyrite Belt igneous activity: Volcanic and plutonic lineaments, geochronology, ore horizons and stratigraphic constraintspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage258pt_PT
oaire.citation.startPage235pt_PT
oaire.citation.titleGondwana Researchpt_PT
oaire.citation.volume121pt_PT
person.familyNameAlbardeiro
person.familyNameMorais
person.familyNameXavier Matos
person.familyNameSolá
person.familyNameSalgueiro
person.familyNamePereira
person.familyNameSilva Mendes
person.familyNameBatista
person.familyNamede Oliveira
person.familyNameInverno
person.familyNamePacheco
person.givenNameLuís
person.givenNameIgor
person.givenNameJoão Manuel
person.givenNameA. Rita
person.givenNameRute
person.givenNameZélia
person.givenNameMárcia Cristina
person.givenNameMaria Joao
person.givenNameDaniel Pipa Soares
person.givenNameCarlos
person.givenNameNelson
person.identifier92033
person.identifier2216267
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person.identifier.ciencia-idA11D-DDD7-29F2
person.identifier.orcid0000-0002-3826-260X
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person.identifier.orcid0000-0003-2290-891X
person.identifier.orcid0000-0003-0197-1004
person.identifier.orcid0000-0002-6338-8845
person.identifier.orcid0000-0002-0806-5330
person.identifier.orcid0000-0002-2109-8006
person.identifier.ridG-6378-2015
person.identifier.ridAGY-5000-2022
person.identifier.scopus-author-id7005481948
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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