Publication
Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma
| dc.contributor.author | Amaral, Joao Lains | |
| dc.contributor.author | Solá, A. Rita | |
| dc.contributor.author | Santos, Telmo M. Bento Dos | |
| dc.contributor.author | Chichorro, Martim | |
| dc.date.accessioned | 2023-07-05T15:49:19Z | |
| dc.date.available | 2023-07-05T15:49:19Z | |
| dc.date.issued | 2022-12 | |
| dc.description.abstract | ABSTRACT: Despite the so-called exotic nature of the South Portuguese Zone relatively to the other major domains of the Iberian Massif of peri-Gondwanan affinity, Devonian detrital rocks of the oldest strata in the Iberian Pyrite Belt have a remarkable resemblance with the Ossa-Morena Zone’s Neoproterozoic-Cambrian rocks and the West Meguma’s Cambrian-Ordovician rocks, presenting the so-called “West African signature”.Using published U-Pb detrital zircon data, we discuss the similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and West Meguma Terrane through multidimensional scaling, comparing them with other zones of the Iberian Massif, Saxo-Thuringian Zone, Avalonia-Ganderia, and the North African cratonic regions. Our findings show that multidimensional scaling is not entirely effective in displaying the dissimilarities between the peri-Gondwanan terranes due to the background noise caused by the overwhelming number of Cadomian-Panafrican ages. However, it becomes a powerful tool if these ages are filtered. A dominant Meguma-type provenance (Cambro-Ordovician) for the Middle-Upper Devonian rocks of the Iberian Pyrite Belt is demonstrated, mainly attending to their similar Birimian-Eburnean pattern. The possibility of minor contributions from the lower Cambrian rocks of the Ossa-Morena Zone into the Iberian Pyrite Belt quartzites is unlikely, as the latter lack the 1.9Ga peak that characterises the Ossa-Morena Zone sediments. Additionally, the remarkable similarities between Ossa-Morena Zone’s and West Meguma’s detrital rocks strongly suggest a similar paleogeographic setting (but diachronic) for both terrains from the Ediacaran to Lower Ordovician times relative to the North African blocks. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Amaral, Joao Lains... [et.al.] - Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma. In: Geologica Acta, vol. 20 (16), p.1-1 9, I-VIII | pt_PT |
| dc.identifier.doi | 10.1344/GeologicaActa2022.20.16 | pt_PT |
| dc.identifier.issn | 1696-5728 | |
| dc.identifier.issn | 1695-6133 | |
| dc.identifier.uri | http://hdl.handle.net/10400.9/4072 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.relation | The link between rhyolitic volcanism and the Aljustrel VHMS deposit Iberian Pyrite Belt: volcanic facies, geochemistry and geochronology | |
| dc.relation | Instituto Dom Luiz | |
| dc.relation.publisherversion | https://doi.org/10.1344/GeologicaActa2022.20.16 | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Cadomian-Panafrican | pt_PT |
| dc.subject | Peri-Gondwanan | pt_PT |
| dc.subject | Palaeogeography | pt_PT |
| dc.subject | Multidimensional scaling | pt_PT |
| dc.subject | Birimian-Eburnean distribution | pt_PT |
| dc.subject | Iberian Massif | pt_PT |
| dc.title | Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | The link between rhyolitic volcanism and the Aljustrel VHMS deposit Iberian Pyrite Belt: volcanic facies, geochemistry and geochronology | |
| oaire.awardTitle | Instituto Dom Luiz | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F138791%2F2018/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50019%2F2020/PT | |
| oaire.citation.endPage | 19 | pt_PT |
| oaire.citation.startPage | 1 | pt_PT |
| oaire.citation.title | Geologica Acta | pt_PT |
| oaire.citation.volume | 20 | pt_PT |
| oaire.fundingStream | OE | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| person.familyName | Solá | |
| person.familyName | Bento dos Santos | |
| person.familyName | Chichorro | |
| person.givenName | A. Rita | |
| person.givenName | Telmo | |
| person.givenName | Martim Afonso | |
| person.identifier.ciencia-id | 4713-7D9F-6567 | |
| person.identifier.ciencia-id | FB13-8A5C-1DBA | |
| person.identifier.ciencia-id | BC1D-671F-1296 | |
| person.identifier.orcid | 0000-0001-9567-5470 | |
| person.identifier.orcid | 0000-0003-4589-0222 | |
| person.identifier.orcid | 0000-0001-5000-0736 | |
| person.identifier.rid | G-6378-2015 | |
| person.identifier.rid | F-8075-2012 | |
| person.identifier.scopus-author-id | 36093841900 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
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