From the Upper Ordovician unconformity to the core-mantle boundary
We present a review of the stratigraphical, structural, geochemical, isotopic and geochronological data related to the Ordovician events in the Canigó massif, eastern Pyrenees. Voluminous felsic magmatism occurred between Mid to Late Ordovician, ranging 20m.y., in two magmatic pulses that produced s...
| Autores: | , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:317252 |
| Acceso en línea: | https://ddd.uab.cat/record/317252 https://dx.doi.org/urn:doi:10.1344/GeologicaActa2025.23.13 |
| Access Level: | acceso abierto |
| Palabra clave: | Ordovician magmatism Pyrenees Canigó Mantle plume Sardic unconformity |
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From the Upper Ordovician unconformity to the core-mantle boundarya review of the Ordovician events in the Canigó massif, PyreneesCasas Tuset, Josep Maria|||0000-0001-7760-7028Díez-Montes, Alejandro|||0000-0003-3215-9174Pujol-Solà, Núria|||0000-0001-6378-6811Beranoaguirre, Aratz|||0000-0002-1137-6498Proenza, Joaquín A.|||0000-0001-8738-7305Sánchez García, Teresa|||0000-0001-5826-420XÁlvaro, Jose Javier|||0000-0001-6294-1998Murphy, J. Brendan|||0000-0003-2269-1976Ordovician magmatismPyreneesCanigóMantle plumeSardic unconformityWe present a review of the stratigraphical, structural, geochemical, isotopic and geochronological data related to the Ordovician events in the Canigó massif, eastern Pyrenees. Voluminous felsic magmatism occurred between Mid to Late Ordovician, ranging 20m.y., in two magmatic pulses that produced several laccolithic bodies, up to ca. 2000m in thickness, which became the protoliths of the various types of the Canigó gneisses. There is also evidence of coeval basalt (future metabasites) with E-MORB affinities. Mid Ordovician uplift and erosion produced an Upper Ordovician (Sardic) unconformity with synchronous extensional faults that built propagation cleavage-free folds affecting pre-Upper Ordovician succession and caused the erosion of up to 1500m of the underlying Cambrian-Lower Ordovician succession. Early Late Ordovician synsedimentary normal faults produced significant thickness variations in the Upper Ordovician successions. Compiled data match the Ordovician evolution described in Sardinia, Mouthoumet and Montagne Noire (Occitan Domain), which differs from the evolution of neighbouring areas, such as the Iberian and Bohemian massifs, where magmatism developed earlier, in Furongian-Early Ordovician times, linked to the Toledanian unconformity. In the study area, uplift, erosion and extensional tectonics argue for a lithospheric uplift coeval with the development of felsic magmatism and metabasite with E-MORB affinities, and strongly suggests Mid to Late Ordovician plume activity beneath this segment of NW Gondwanan margin. The proposed plume would be one of a cluster of plumes impacting the Gondwana periphery that probably migrated inwards into Gondwana. Plume activity may be related to an early Paleozoic superplume event, that contributed to the birth and development of the Rheic Ocean throughout the Gondwana margin breakup. 22025-01-0120252025-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/317252https://dx.doi.org/urn:doi:10.1344/GeologicaActa2025.23.13reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen 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:ddd.uab.cat:3172522026-06-06T12:50:31Z |
| dc.title.none.fl_str_mv |
From the Upper Ordovician unconformity to the core-mantle boundary a review of the Ordovician events in the Canigó massif, Pyrenees |
| title |
From the Upper Ordovician unconformity to the core-mantle boundary |
| spellingShingle |
From the Upper Ordovician unconformity to the core-mantle boundary Casas Tuset, Josep Maria|||0000-0001-7760-7028 Ordovician magmatism Pyrenees Canigó Mantle plume Sardic unconformity |
| title_short |
From the Upper Ordovician unconformity to the core-mantle boundary |
| title_full |
From the Upper Ordovician unconformity to the core-mantle boundary |
| title_fullStr |
From the Upper Ordovician unconformity to the core-mantle boundary |
| title_full_unstemmed |
From the Upper Ordovician unconformity to the core-mantle boundary |
| title_sort |
From the Upper Ordovician unconformity to the core-mantle boundary |
| dc.creator.none.fl_str_mv |
Casas Tuset, Josep Maria|||0000-0001-7760-7028 Díez-Montes, Alejandro|||0000-0003-3215-9174 Pujol-Solà, Núria|||0000-0001-6378-6811 Beranoaguirre, Aratz|||0000-0002-1137-6498 Proenza, Joaquín A.|||0000-0001-8738-7305 Sánchez García, Teresa|||0000-0001-5826-420X Álvaro, Jose Javier|||0000-0001-6294-1998 Murphy, J. Brendan|||0000-0003-2269-1976 |
| author |
Casas Tuset, Josep Maria|||0000-0001-7760-7028 |
| author_facet |
Casas Tuset, Josep Maria|||0000-0001-7760-7028 Díez-Montes, Alejandro|||0000-0003-3215-9174 Pujol-Solà, Núria|||0000-0001-6378-6811 Beranoaguirre, Aratz|||0000-0002-1137-6498 Proenza, Joaquín A.|||0000-0001-8738-7305 Sánchez García, Teresa|||0000-0001-5826-420X Álvaro, Jose Javier|||0000-0001-6294-1998 Murphy, J. Brendan|||0000-0003-2269-1976 |
| author_role |
author |
| author2 |
Díez-Montes, Alejandro|||0000-0003-3215-9174 Pujol-Solà, Núria|||0000-0001-6378-6811 Beranoaguirre, Aratz|||0000-0002-1137-6498 Proenza, Joaquín A.|||0000-0001-8738-7305 Sánchez García, Teresa|||0000-0001-5826-420X Álvaro, Jose Javier|||0000-0001-6294-1998 Murphy, J. Brendan|||0000-0003-2269-1976 |
| author2_role |
author author author author author author author |
| dc.subject.none.fl_str_mv |
Ordovician magmatism Pyrenees Canigó Mantle plume Sardic unconformity |
| topic |
Ordovician magmatism Pyrenees Canigó Mantle plume Sardic unconformity |
| description |
We present a review of the stratigraphical, structural, geochemical, isotopic and geochronological data related to the Ordovician events in the Canigó massif, eastern Pyrenees. Voluminous felsic magmatism occurred between Mid to Late Ordovician, ranging 20m.y., in two magmatic pulses that produced several laccolithic bodies, up to ca. 2000m in thickness, which became the protoliths of the various types of the Canigó gneisses. There is also evidence of coeval basalt (future metabasites) with E-MORB affinities. Mid Ordovician uplift and erosion produced an Upper Ordovician (Sardic) unconformity with synchronous extensional faults that built propagation cleavage-free folds affecting pre-Upper Ordovician succession and caused the erosion of up to 1500m of the underlying Cambrian-Lower Ordovician succession. Early Late Ordovician synsedimentary normal faults produced significant thickness variations in the Upper Ordovician successions. Compiled data match the Ordovician evolution described in Sardinia, Mouthoumet and Montagne Noire (Occitan Domain), which differs from the evolution of neighbouring areas, such as the Iberian and Bohemian massifs, where magmatism developed earlier, in Furongian-Early Ordovician times, linked to the Toledanian unconformity. In the study area, uplift, erosion and extensional tectonics argue for a lithospheric uplift coeval with the development of felsic magmatism and metabasite with E-MORB affinities, and strongly suggests Mid to Late Ordovician plume activity beneath this segment of NW Gondwanan margin. The proposed plume would be one of a cluster of plumes impacting the Gondwana periphery that probably migrated inwards into Gondwana. Plume activity may be related to an early Paleozoic superplume event, that contributed to the birth and development of the Rheic Ocean throughout the Gondwana margin breakup. |
| publishDate |
2025 |
| dc.date.none.fl_str_mv |
2 2025-01-01 2025 2025-01-01 |
| 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 |
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article |
| dc.identifier.none.fl_str_mv |
https://ddd.uab.cat/record/317252 https://dx.doi.org/urn:doi:10.1344/GeologicaActa2025.23.13 |
| url |
https://ddd.uab.cat/record/317252 https://dx.doi.org/urn:doi:10.1344/GeologicaActa2025.23.13 |
| dc.language.none.fl_str_mv |
Inglés eng |
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Inglés |
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eng |
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open access http://purl.org/coar/access_right/c_abf2 https://creativecommons.org/licenses/by-sa/4.0/ |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 https://creativecommons.org/licenses/by-sa/4.0/ |
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openAccess |
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application/pdf |
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