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New insights on the middle Givetian/middle Frasnian palynofloras from the Phyllite-Quartzite Formation in the Neves-Corvo mine region (Iberian Pyrite Belt, Portugal)

2020-10Journal article Open access
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dc.contributor.authorMendes, Márcia
dc.contributor.authorPereira, Zélia
dc.contributor.authorMatos, João Xavier
dc.contributor.authorAlbardeiro, Luis
dc.contributor.authorMorais, Igor
dc.contributor.authorSolá, A. Rita
dc.contributor.authorSalgueiro, Rute
dc.contributor.authorPacheco, Nelson
dc.contributor.authorAraújo, Vítor
dc.contributor.authorInverno, Carlos
dc.contributor.authorOliveira, José Tomás
dc.date.accessioned2020-12-14T17:28:18Z
dc.date.available2024-12-01T01:30:44Z
dc.date.issued2020-10
dc.date.updated2020-12-07T10:22:12Z
dc.description.abstractABSTRACT: A detailed palynostratigraphic study of two Somincor/Lundin Mining exploration drill holes intercepting the Phyllite-Quartzite (PQ) Formation in the geological basement of the Neves-Corvo mine region (Portuguese sector of the Iberian Pyrite Belt – IPB) allowed to first recognise the oldest ages for this formation in this region, ranging from midGivetian/midFrasnian (base unknown) to late Famennian. The TA Miospore Biozone (Cristatisporites triangulatus-Ancyrospora ancyrea) of middle Givetian age (Middle Devonian) was identified in NK30B-1 drill hole (Lombador North mine sector), whereas the BM Miospore Biozone (Verrucosisporites bulliferus-Lophozonotriletes media) and IV Miospore Biozone (based in the first occurrence of Rugospora bricei and Diducites cf. poljessicus) of middle Frasnian (Late Devonian) age were both recognised in drill hole SJ32 (Corvo-Semblana mine sector). The common presence of Early-Middle Devonian reworked spores, as well as similar inherited zircon ages may suggest that the lower PQ Formation age is not yet known. At Neves-Corvo mine, the Volcano-Sedimentary Complex is deposited directly above the PQ basement, spanning different ages, pointing out two major unconformities, a VSC/upper and/or lower PQ sequences and an upper PQ/lower PQ sequences. A palynostratigraphic correlation of the lowermost Phyllite-Quartzite Formation across the IPB is established. Phyllite-Quartzite Formation palynoassemblage of Neves-Corvo region is compared with lowermost PQ assemblages recovered in the NW sector of IPB (S. Francisco da Serra and Lousal-Caveira mine structures, Portugal) and in E sectors of the IPB in Spain (Gerena-El Garrobo section). The similar palynological record (also including the same reworked taxa signature) and ages obtained, suggests identical sedimentary provenance, close paleogeographic domain and temporal affinity throughout the lowermost IPB Phyllite-Quartzite Formation.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMendes, Márcia... [et.al.] - New insights on the middle Givetian/middle Frasnian palynofloras from the Phyllite-Quartzite Formation in the Neves-Corvo mine region (Iberian Pyrite Belt, Portugal). In: Revue de Micropaléontologie, 2020, Vol. 48, article nº 100447pt_PT
dc.identifier.doi10.1016/j.revmic.2020.100447pt_PT
dc.identifier.issn0035-1598
dc.identifier.slugcv-prod-2107301
dc.identifier.urihttp://hdl.handle.net/10400.9/3511
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationEXPLORApt_PT
dc.relation.publisherversionhttps://doi.org/10.1016/j.revmic.2020.100447pt_PT
dc.subjectPalinostratigrafiapt_PT
dc.subjectFilitospt_PT
dc.subjectQuartzitospt_PT
dc.subjectFaixa Piritosa Ibéricapt_PT
dc.subjectMinas de Neves Corvo (concelho de Castro Verde, Portugal)pt_PT
dc.titleNew insights on the middle Givetian/middle Frasnian palynofloras from the Phyllite-Quartzite Formation in the Neves-Corvo mine region (Iberian Pyrite Belt, Portugal)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleRevue de Micropaléontologiept_PT
oaire.citation.volume68pt_PT
person.familyNameSilva Mendes
person.familyNamePereira
person.familyNameXavier Matos
person.familyNameAlbardeiro
person.familyNameMorais
person.familyNameSolá
person.familyNameSalgueiro
person.familyNamePacheco
person.familyNameInverno
person.givenNameMárcia Cristina
person.givenNameZélia
person.givenNameJoão Manuel
person.givenNameLuís
person.givenNameIgor
person.givenNameA. Rita
person.givenNameRute
person.givenNameNelson
person.givenNameCarlos
person.identifier.ciencia-idE71E-1CB5-D774
person.identifier.ciencia-id6C1B-ED1C-8F5D
person.identifier.ciencia-idFE16-BE78-D4EA
person.identifier.ciencia-idB81A-A94B-E72A
person.identifier.ciencia-id4713-7D9F-6567
person.identifier.orcid0000-0003-2290-891X
person.identifier.orcid0000-0003-3056-6219
person.identifier.orcid0000-0002-6108-1030
person.identifier.orcid0000-0002-3826-260X
person.identifier.orcid0000-0001-9806-7139
person.identifier.orcid0000-0001-9567-5470
person.identifier.orcid0000-0002-3740-2965
person.identifier.orcid0000-0002-2109-8006
person.identifier.orcid0000-0002-0806-5330
person.identifier.ridG-6378-2015
rcaap.cv.cienciaid6C1B-ED1C-8F5D | Zélia Pereira
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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