Detrital zircon provenance of Triassic sandstone of the Algarve Basin (SW Iberia): Evidence of Gondwana and Laurussian type sources of sediment

Detalhes bibliográficos
Autor(a) principal: Gama, Cristina
Data de Publicação: 2020
Outros Autores: Pereira, M. F., Quentin, C., Dias da Silva, I., Silva, J.B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10174/32743
https://doi.org/10.1017/S0016756820000370
Resumo: Detrital zircon populations from six samples of upper Triassic sandstone (Algarve Basin) were analysed, yielding mostly Precambrian ages. zircon age populations of the Triassic sandstone sampled from the western and central sectors of the basin are distinct, suggesting local recycling and/or lateral changes in their sources. Our findings and the available detrital zircon ages from the Palaeozoic terranes of SW Iberia, Nova Scotia and NW Morocco were jointly examined using the Kolmogorov–Smirnov test and multidimensional scaling diagrams. The obtained results enable direct discrimination of competing Laurussian-type and Gondwanan-type sediment sources, involving recycling and mixing relationships. The detrital zircon populations of the Algarve Triassic sandstone are very different from those of the lower–upper Carboniferous Mértola and Mira formations (South Portuguese Zone), upper Devonian – lower Carboniferous Horta da Torre, Represa and Santa Iria formations (Pulo do Lobo Zone), and the late Carboniferous Santa Susana and early Permian Viar basins, which are ruled out as potential sources. The detrital zircon populations of Triassic sandstone from the central sector and those from the Ossa–Morena Zone Ediacaran–Cambrian siliciclastic rocks, upper Devonian –Carboniferous Ronquillo, Tercenas, Phyllite-Quartzite and Brejeira formations (South Portuguese Zone), and Frasnian siliciclastic rocks of the Pulo do Lobo Zone are not statistically distinguishable. Thus, sedimentation in the central sector was influenced by Gondwanan- and Laurussian-type putative sources exposed in SW Iberia, in contrast to the western sector, where Meguma Terrane and Sehoul Block Cambrian siliciclastic rocks allegedly constituted the main (Laurussian-type) sources. These findings provide insights into the denudation of distinctive source terranes distributed along the late Palaeozoic suture zone that juxtaposed the Laurussian and Gondwanan margins.
id RCAP_93824642d064f2a91da83ad7865eee36
oai_identifier_str oai:dspace.uevora.pt:10174/32743
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Detrital zircon provenance of Triassic sandstone of the Algarve Basin (SW Iberia): Evidence of Gondwana and Laurussian type sources of sedimentU-Pb geochronologydetrital zirconTriassic sandstoneAlgrave basinDetrital zircon populations from six samples of upper Triassic sandstone (Algarve Basin) were analysed, yielding mostly Precambrian ages. zircon age populations of the Triassic sandstone sampled from the western and central sectors of the basin are distinct, suggesting local recycling and/or lateral changes in their sources. Our findings and the available detrital zircon ages from the Palaeozoic terranes of SW Iberia, Nova Scotia and NW Morocco were jointly examined using the Kolmogorov–Smirnov test and multidimensional scaling diagrams. The obtained results enable direct discrimination of competing Laurussian-type and Gondwanan-type sediment sources, involving recycling and mixing relationships. The detrital zircon populations of the Algarve Triassic sandstone are very different from those of the lower–upper Carboniferous Mértola and Mira formations (South Portuguese Zone), upper Devonian – lower Carboniferous Horta da Torre, Represa and Santa Iria formations (Pulo do Lobo Zone), and the late Carboniferous Santa Susana and early Permian Viar basins, which are ruled out as potential sources. The detrital zircon populations of Triassic sandstone from the central sector and those from the Ossa–Morena Zone Ediacaran–Cambrian siliciclastic rocks, upper Devonian –Carboniferous Ronquillo, Tercenas, Phyllite-Quartzite and Brejeira formations (South Portuguese Zone), and Frasnian siliciclastic rocks of the Pulo do Lobo Zone are not statistically distinguishable. Thus, sedimentation in the central sector was influenced by Gondwanan- and Laurussian-type putative sources exposed in SW Iberia, in contrast to the western sector, where Meguma Terrane and Sehoul Block Cambrian siliciclastic rocks allegedly constituted the main (Laurussian-type) sources. These findings provide insights into the denudation of distinctive source terranes distributed along the late Palaeozoic suture zone that juxtaposed the Laurussian and Gondwanan margins.Cambridge University Press2022-11-16T16:56:55Z2022-11-162020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/32743http://hdl.handle.net/10174/32743https://doi.org/10.1017/S0016756820000370engGama, C., PEREIRA, M.F., Quentin, C., Dias da Silva, Í., Silva, J.B. (2020). Detrital zircon provenance of Triassic sandstone of the Algarve Basin (SW Iberia): Evidence of Gondwana and Laurussian type sources of sediment. GEOLOGICAL MAGAZINE, 158, 2, 311-329.ndndndndnd250Gama, CristinaPereira, M. F.Quentin, C.Dias da Silva, I.Silva, J.B.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:33:22Zoai:dspace.uevora.pt:10174/32743Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:21:31.699362Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Detrital zircon provenance of Triassic sandstone of the Algarve Basin (SW Iberia): Evidence of Gondwana and Laurussian type sources of sediment
title Detrital zircon provenance of Triassic sandstone of the Algarve Basin (SW Iberia): Evidence of Gondwana and Laurussian type sources of sediment
spellingShingle Detrital zircon provenance of Triassic sandstone of the Algarve Basin (SW Iberia): Evidence of Gondwana and Laurussian type sources of sediment
Gama, Cristina
U-Pb geochronology
detrital zircon
Triassic sandstone
Algrave basin
title_short Detrital zircon provenance of Triassic sandstone of the Algarve Basin (SW Iberia): Evidence of Gondwana and Laurussian type sources of sediment
title_full Detrital zircon provenance of Triassic sandstone of the Algarve Basin (SW Iberia): Evidence of Gondwana and Laurussian type sources of sediment
title_fullStr Detrital zircon provenance of Triassic sandstone of the Algarve Basin (SW Iberia): Evidence of Gondwana and Laurussian type sources of sediment
title_full_unstemmed Detrital zircon provenance of Triassic sandstone of the Algarve Basin (SW Iberia): Evidence of Gondwana and Laurussian type sources of sediment
title_sort Detrital zircon provenance of Triassic sandstone of the Algarve Basin (SW Iberia): Evidence of Gondwana and Laurussian type sources of sediment
author Gama, Cristina
author_facet Gama, Cristina
Pereira, M. F.
Quentin, C.
Dias da Silva, I.
Silva, J.B.
author_role author
author2 Pereira, M. F.
Quentin, C.
Dias da Silva, I.
Silva, J.B.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Gama, Cristina
Pereira, M. F.
Quentin, C.
Dias da Silva, I.
Silva, J.B.
dc.subject.por.fl_str_mv U-Pb geochronology
detrital zircon
Triassic sandstone
Algrave basin
topic U-Pb geochronology
detrital zircon
Triassic sandstone
Algrave basin
description Detrital zircon populations from six samples of upper Triassic sandstone (Algarve Basin) were analysed, yielding mostly Precambrian ages. zircon age populations of the Triassic sandstone sampled from the western and central sectors of the basin are distinct, suggesting local recycling and/or lateral changes in their sources. Our findings and the available detrital zircon ages from the Palaeozoic terranes of SW Iberia, Nova Scotia and NW Morocco were jointly examined using the Kolmogorov–Smirnov test and multidimensional scaling diagrams. The obtained results enable direct discrimination of competing Laurussian-type and Gondwanan-type sediment sources, involving recycling and mixing relationships. The detrital zircon populations of the Algarve Triassic sandstone are very different from those of the lower–upper Carboniferous Mértola and Mira formations (South Portuguese Zone), upper Devonian – lower Carboniferous Horta da Torre, Represa and Santa Iria formations (Pulo do Lobo Zone), and the late Carboniferous Santa Susana and early Permian Viar basins, which are ruled out as potential sources. The detrital zircon populations of Triassic sandstone from the central sector and those from the Ossa–Morena Zone Ediacaran–Cambrian siliciclastic rocks, upper Devonian –Carboniferous Ronquillo, Tercenas, Phyllite-Quartzite and Brejeira formations (South Portuguese Zone), and Frasnian siliciclastic rocks of the Pulo do Lobo Zone are not statistically distinguishable. Thus, sedimentation in the central sector was influenced by Gondwanan- and Laurussian-type putative sources exposed in SW Iberia, in contrast to the western sector, where Meguma Terrane and Sehoul Block Cambrian siliciclastic rocks allegedly constituted the main (Laurussian-type) sources. These findings provide insights into the denudation of distinctive source terranes distributed along the late Palaeozoic suture zone that juxtaposed the Laurussian and Gondwanan margins.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01T00:00:00Z
2022-11-16T16:56:55Z
2022-11-16
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10174/32743
http://hdl.handle.net/10174/32743
https://doi.org/10.1017/S0016756820000370
url http://hdl.handle.net/10174/32743
https://doi.org/10.1017/S0016756820000370
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Gama, C., PEREIRA, M.F., Quentin, C., Dias da Silva, Í., Silva, J.B. (2020). Detrital zircon provenance of Triassic sandstone of the Algarve Basin (SW Iberia): Evidence of Gondwana and Laurussian type sources of sediment. GEOLOGICAL MAGAZINE, 158, 2, 311-329.
nd
nd
nd
nd
nd
250
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799136697243402240