Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma

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 Neoproterozo...

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Autores: Lains Amaral, João|||0000-0001-8269-8470, Solá, Ana Rita|||0000-0001-9567-5470, Bento dos Santos, Telmo M.|||0000-0003-4589-0222, Chichorro, Martim|||0000-0001-5000-0736
Formato: artículo
Fecha de publicación:2022
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:español
OAI Identifier:oai:dnet:uabarcelona_::28bcf1e19b6e30d41011d6f0bd086c2b
Acesso em linha:https://ddd.uab.cat/record/270058
https://dx.doi.org/urn:doi:10.1344/GeologicaActa2022.20.16
Access Level:acceso abierto
Palavra-chave:Cadomian-Panafrican
Peri-Gondwanan Palaeogeography
Multidimensional Scaling
Birimian-Eburnean Distribution
Iberian Massif
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spelling Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and MegumaLains Amaral, João|||0000-0001-8269-8470Solá, Ana Rita|||0000-0001-9567-5470Bento dos Santos, Telmo M.|||0000-0003-4589-0222Chichorro, Martim|||0000-0001-5000-0736Cadomian-PanafricanPeri-Gondwanan PalaeogeographyMultidimensional ScalingBirimian-Eburnean DistributionIberian MassifDespite 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 CadomianPanafrican 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 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. 22022-01-0120222022-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/270058https://dx.doi.org/urn:doi:10.1344/GeologicaActa2022.20.16reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaEspañolspaopen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria.https://creativecommons.org/licenses/by-sa/4.0/info:eu-repo/semantics/openAccessoai:dnet:uabarcelona_::28bcf1e19b6e30d41011d6f0bd086c2b2026-06-06T12:50:31Z
dc.title.none.fl_str_mv Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma
title Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma
spellingShingle Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma
Lains Amaral, João|||0000-0001-8269-8470
Cadomian-Panafrican
Peri-Gondwanan Palaeogeography
Multidimensional Scaling
Birimian-Eburnean Distribution
Iberian Massif
title_short Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma
title_full Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma
title_fullStr Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma
title_full_unstemmed Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma
title_sort Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma
dc.creator.none.fl_str_mv Lains Amaral, João|||0000-0001-8269-8470
Solá, Ana Rita|||0000-0001-9567-5470
Bento dos Santos, Telmo M.|||0000-0003-4589-0222
Chichorro, Martim|||0000-0001-5000-0736
author Lains Amaral, João|||0000-0001-8269-8470
author_facet Lains Amaral, João|||0000-0001-8269-8470
Solá, Ana Rita|||0000-0001-9567-5470
Bento dos Santos, Telmo M.|||0000-0003-4589-0222
Chichorro, Martim|||0000-0001-5000-0736
author_role author
author2 Solá, Ana Rita|||0000-0001-9567-5470
Bento dos Santos, Telmo M.|||0000-0003-4589-0222
Chichorro, Martim|||0000-0001-5000-0736
author2_role author
author
author
dc.subject.none.fl_str_mv Cadomian-Panafrican
Peri-Gondwanan Palaeogeography
Multidimensional Scaling
Birimian-Eburnean Distribution
Iberian Massif
topic Cadomian-Panafrican
Peri-Gondwanan Palaeogeography
Multidimensional Scaling
Birimian-Eburnean Distribution
Iberian Massif
description 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 CadomianPanafrican 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 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.
publishDate 2022
dc.date.none.fl_str_mv 2
2022-01-01
2022
2022-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/270058
https://dx.doi.org/urn:doi:10.1344/GeologicaActa2022.20.16
url https://ddd.uab.cat/record/270058
https://dx.doi.org/urn:doi:10.1344/GeologicaActa2022.20.16
dc.language.none.fl_str_mv Español
spa
language_invalid_str_mv Español
language spa
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-sa/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-sa/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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