Chronostratigraphy and tectono-sedimentary history of the Eastern South Pyrenean foreland basin (Ripoll Syncline North-East Spain)

This paper contributes to an understanding of the tectono-sedimentary evolution of the South Pyrenean foreland system by reviewing the chronostratigraphicframework of the basin infill in its eastern sector. Six sections are analysed and cross-correlated to build a 6.5 km thick composite magnetostrat...

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Autores: Juvany, Philémon, Garcés Crespo, Miguel, López Blanco, Miguel, Martín-Closas, Carles, Beamud Amorós, Elisabet, Tosquella, Josep, Bekkevold, Susanna Emilia
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/217726
Acceso en línea:https://hdl.handle.net/2445/217726
Access Level:acceso abierto
Palabra clave:Tectònica
Sedimentologia
Pirineus
Estratigrafia
Paleomagnetisme
Paleogen
Tectonics
Sedimentology
Pyrenees
Stratigraphic geology
Paleomagnetism
Paleogene
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spelling Chronostratigraphy and tectono-sedimentary history of the Eastern South Pyrenean foreland basin (Ripoll Syncline North-East Spain)Juvany, PhilémonGarcés Crespo, MiguelLópez Blanco, MiguelMartín-Closas, CarlesBeamud Amorós, ElisabetTosquella, JosepBekkevold, Susanna EmiliaTectònicaSedimentologiaPirineusEstratigrafiaPaleomagnetismePaleogenTectonicsSedimentologyPyreneesStratigraphic geologyPaleomagnetismPaleogeneThis paper contributes to an understanding of the tectono-sedimentary evolution of the South Pyrenean foreland system by reviewing the chronostratigraphicframework of the basin infill in its eastern sector. Six sections are analysed and cross-correlated to build a 6.5 km thick composite magnetostratigraphy that represents the complete record of the Cadí Nappe in the Ripoll Syncline. New and previous magnetostratigraphic sections are integrated with available biostratigraphy to provide a new age calibration of the sedimentary succession of the Cadí</p><p>Nappe, encompassing from Palaeocene to Middle Lutetian age. The proposed correlation with the Geomagnetic Polarity Time Scale aims at best reconcile magnetostratigraphic</p><p>data with the regional biochronology built on the marine Shallow Benthic Zonation (SBZ biozones), the continental mammalian biochronology (MP levels) and the newly collected charophyte data. A subsidence analysis was performed on the calibrated composite succession, resulting in two well-defined intervals bounded by a hiatus. A Palaeocene to Early Eocene interval with low (11–21 cm/kyr) total subsidence rates, and an Early to Middle Eocene interval, characterised by high (70–75 cm/kyr) total subsidence rates. The detailed trends</p><p>in both subsidence and sedimentation mark the development and evolution of the foreland depozones, from distal foreland depozones to foredeep and wedge-top depozones, relative to the emplacement of the Pedraforca Nappe and Cadí Thrust Nappe. The most pronounced sedimentary shift in the Cadí Nappe occurred at 49 Ma, with the rapid drowning of the carbonate platforms and its transition into talus and deep basinal environments. Carbonate platforms collapsed and resedimented on the talus of the elongated trough, newly formed parallel to</p><p>the orogenic front. This marked the onset of tectonic subsidence triggered by the submarine emplacement of the Lower Pedraforca Nappe. The emersion of the orogenic wedge drove the entry of siliciclastics, lagged by 1 Myr, into the Ripoll Trough. The foredeep filled rapidly (5.5 km thickness in less than 7 Myr) compared to other South Pyrenean regions, favoured by its semi-enclosed palaeogeography. The emplacement of the Vallfogona Thrust as early as the Middle Lutetian (43 Ma) brought the Cadi Nappe into a wedge-top setting. However, the Ripoll</p><p>growth syncline continued acting as a temporary sink for alluvial sedimentation while a foredeep developed further south in the autochthonous Ebro Basin. The flexural response of the Iberian plate to the tectonic thickening of the Axial Zone counterbalanced for a period the local uplift of the Cadi Nappe, providing accommodation space for the top sediments filling the Ripoll Syncline.Wiley2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/217726Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1002/dep2.287Depositional Record, 2024, vol. 10, num.3, p. 338-363https://doi.org/10.1002/dep2.287cc-by (c) Juvany, Philémon et al., 2024http://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2177262026-05-27T06:46:51Z
dc.title.none.fl_str_mv Chronostratigraphy and tectono-sedimentary history of the Eastern South Pyrenean foreland basin (Ripoll Syncline North-East Spain)
title Chronostratigraphy and tectono-sedimentary history of the Eastern South Pyrenean foreland basin (Ripoll Syncline North-East Spain)
spellingShingle Chronostratigraphy and tectono-sedimentary history of the Eastern South Pyrenean foreland basin (Ripoll Syncline North-East Spain)
Juvany, Philémon
Tectònica
Sedimentologia
Pirineus
Estratigrafia
Paleomagnetisme
Paleogen
Tectonics
Sedimentology
Pyrenees
Stratigraphic geology
Paleomagnetism
Paleogene
title_short Chronostratigraphy and tectono-sedimentary history of the Eastern South Pyrenean foreland basin (Ripoll Syncline North-East Spain)
title_full Chronostratigraphy and tectono-sedimentary history of the Eastern South Pyrenean foreland basin (Ripoll Syncline North-East Spain)
title_fullStr Chronostratigraphy and tectono-sedimentary history of the Eastern South Pyrenean foreland basin (Ripoll Syncline North-East Spain)
title_full_unstemmed Chronostratigraphy and tectono-sedimentary history of the Eastern South Pyrenean foreland basin (Ripoll Syncline North-East Spain)
title_sort Chronostratigraphy and tectono-sedimentary history of the Eastern South Pyrenean foreland basin (Ripoll Syncline North-East Spain)
dc.creator.none.fl_str_mv Juvany, Philémon
Garcés Crespo, Miguel
López Blanco, Miguel
Martín-Closas, Carles
Beamud Amorós, Elisabet
Tosquella, Josep
Bekkevold, Susanna Emilia
author Juvany, Philémon
author_facet Juvany, Philémon
Garcés Crespo, Miguel
López Blanco, Miguel
Martín-Closas, Carles
Beamud Amorós, Elisabet
Tosquella, Josep
Bekkevold, Susanna Emilia
author_role author
author2 Garcés Crespo, Miguel
López Blanco, Miguel
Martín-Closas, Carles
Beamud Amorós, Elisabet
Tosquella, Josep
Bekkevold, Susanna Emilia
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Tectònica
Sedimentologia
Pirineus
Estratigrafia
Paleomagnetisme
Paleogen
Tectonics
Sedimentology
Pyrenees
Stratigraphic geology
Paleomagnetism
Paleogene
topic Tectònica
Sedimentologia
Pirineus
Estratigrafia
Paleomagnetisme
Paleogen
Tectonics
Sedimentology
Pyrenees
Stratigraphic geology
Paleomagnetism
Paleogene
description This paper contributes to an understanding of the tectono-sedimentary evolution of the South Pyrenean foreland system by reviewing the chronostratigraphicframework of the basin infill in its eastern sector. Six sections are analysed and cross-correlated to build a 6.5 km thick composite magnetostratigraphy that represents the complete record of the Cadí Nappe in the Ripoll Syncline. New and previous magnetostratigraphic sections are integrated with available biostratigraphy to provide a new age calibration of the sedimentary succession of the Cadí</p><p>Nappe, encompassing from Palaeocene to Middle Lutetian age. The proposed correlation with the Geomagnetic Polarity Time Scale aims at best reconcile magnetostratigraphic</p><p>data with the regional biochronology built on the marine Shallow Benthic Zonation (SBZ biozones), the continental mammalian biochronology (MP levels) and the newly collected charophyte data. A subsidence analysis was performed on the calibrated composite succession, resulting in two well-defined intervals bounded by a hiatus. A Palaeocene to Early Eocene interval with low (11–21 cm/kyr) total subsidence rates, and an Early to Middle Eocene interval, characterised by high (70–75 cm/kyr) total subsidence rates. The detailed trends</p><p>in both subsidence and sedimentation mark the development and evolution of the foreland depozones, from distal foreland depozones to foredeep and wedge-top depozones, relative to the emplacement of the Pedraforca Nappe and Cadí Thrust Nappe. The most pronounced sedimentary shift in the Cadí Nappe occurred at 49 Ma, with the rapid drowning of the carbonate platforms and its transition into talus and deep basinal environments. Carbonate platforms collapsed and resedimented on the talus of the elongated trough, newly formed parallel to</p><p>the orogenic front. This marked the onset of tectonic subsidence triggered by the submarine emplacement of the Lower Pedraforca Nappe. The emersion of the orogenic wedge drove the entry of siliciclastics, lagged by 1 Myr, into the Ripoll Trough. The foredeep filled rapidly (5.5 km thickness in less than 7 Myr) compared to other South Pyrenean regions, favoured by its semi-enclosed palaeogeography. The emplacement of the Vallfogona Thrust as early as the Middle Lutetian (43 Ma) brought the Cadi Nappe into a wedge-top setting. However, the Ripoll</p><p>growth syncline continued acting as a temporary sink for alluvial sedimentation while a foredeep developed further south in the autochthonous Ebro Basin. The flexural response of the Iberian plate to the tectonic thickening of the Axial Zone counterbalanced for a period the local uplift of the Cadi Nappe, providing accommodation space for the top sediments filling the Ripoll Syncline.
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/217726
url https://hdl.handle.net/2445/217726
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1002/dep2.287
Depositional Record, 2024, vol. 10, num.3, p. 338-363
https://doi.org/10.1002/dep2.287
dc.rights.none.fl_str_mv cc-by (c) Juvany, Philémon et al., 2024
http://creativecommons.org/licenses/by/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Juvany, Philémon et al., 2024
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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