Strontium-isotope stratigraphy of the Aptian–Albian transition inthe western Maestrat Basin (E Iberia)

The Aptian–Albian transition in the Maestrat Basin (E Iberian Chain) encompasses two lithostratigraphic units:</p><p>the Benassal and Escucha formations. In some sectors of the basin, such as the western Galve and Las Parras</p><p>sub-basins, this stratigraphic interval recor...

Descripción completa

Detalles Bibliográficos
Autores: Bover-Arnal, Telm, Pascual-Cebrian, Enric, Moreno-Bedmar, Josep Anton, Salas, Ramon (Salas Roig)
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/227521
Acceso en línea:https://hdl.handle.net/2445/227521
Access Level:acceso abierto
Palabra clave:Estratigrafia
Roques calcàries
Mol·luscs fòssils
Paleontologia
Stratigraphic geology
Carbonate rocks
Mollusks fossil
Paleontology
id ES_7ccfa2cc1cd981a3b4703d688421fdde
oai_identifier_str oai:diposit.ub.edu:2445/227521
network_acronym_str ES
network_name_str España
repository_id_str
spelling Strontium-isotope stratigraphy of the Aptian–Albian transition inthe western Maestrat Basin (E Iberia)Bover-Arnal, TelmPascual-Cebrian, EnricMoreno-Bedmar, Josep AntonSalas, Ramon (Salas Roig)EstratigrafiaRoques calcàriesMol·luscs fòssilsPaleontologiaStratigraphic geologyCarbonate rocksMollusks fossilPaleontologyThe Aptian–Albian transition in the Maestrat Basin (E Iberian Chain) encompasses two lithostratigraphic units:</p><p>the Benassal and Escucha formations. In some sectors of the basin, such as the western Galve and Las Parras</p><p>sub-basins, this stratigraphic interval recorded a progressive shift from widespread carbonate platform settings</p><p>to coastal siliciclastic-influenced and coal-bearing environments. Due to the transitional nature of this interval,</p><p>establishing a clear stratigraphic boundary between the upper part of the Benassal Formation and the lower part</p><p>of the Escucha Formation is challenging. Additionally, there is no unanimous agreement on the age range of</p><p>these formations. To shed light on the stratigraphic location of the boundary between the Aptian and the Albian,</p><p>strontium-isotope analyses were carried out on thirteen low-Mg calcite oyster shells to derive numerical ages.</p><p>In the Las Parras Sub-basin, the 87Sr/86Sr values obtained from the siliciclastic-influenced transitional deposits</p><p>between the Benassal and Escucha formations, as well as from the lowermost part of the Escucha Formation,</p><p>range from 0.707282±0.000002 to 0.707410±0.000002. These Sr-isotope ratios translate into numerical ages that constrain this stratigraphic interval to the early Albian. The oyster shells collected in the Galve Sub-basin exhibit a higher degree of diagenetic alteration. Nevertheless, the least altered specimens analysed from the lower part of the transitional facies between the Benassal and Escucha formations in this latter sub-basin yielded Sr-isotope ratios between 0.707197±0.000003 and 0.707256±0.000002. These values correspond to ages spanning from the latest Aptian to the earliest Albian. Accordingly, in most sectors of the western Maestrat Basin, the Aptian–Albian boundary is likely to be stratigraphically located at the lowermost part of the transitional facies between the Benassal and Escucha formations.(UB). (ICTJA). (IDEA). (UAB). (CSIC)2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/227521Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1344/GeologicaActa2025.23.27Geologica Acta, 2025, vol. 23, p. 1-21https://doi.org/10.1344/GeologicaActa2025.23.27cc-by-sa (c) Bover-Arnal, T. et al., 2025http://creativecommons.org/licenses/by-sa/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2275212026-05-27T06:46:51Z
dc.title.none.fl_str_mv Strontium-isotope stratigraphy of the Aptian–Albian transition inthe western Maestrat Basin (E Iberia)
title Strontium-isotope stratigraphy of the Aptian–Albian transition inthe western Maestrat Basin (E Iberia)
spellingShingle Strontium-isotope stratigraphy of the Aptian–Albian transition inthe western Maestrat Basin (E Iberia)
Bover-Arnal, Telm
Estratigrafia
Roques calcàries
Mol·luscs fòssils
Paleontologia
Stratigraphic geology
Carbonate rocks
Mollusks fossil
Paleontology
title_short Strontium-isotope stratigraphy of the Aptian–Albian transition inthe western Maestrat Basin (E Iberia)
title_full Strontium-isotope stratigraphy of the Aptian–Albian transition inthe western Maestrat Basin (E Iberia)
title_fullStr Strontium-isotope stratigraphy of the Aptian–Albian transition inthe western Maestrat Basin (E Iberia)
title_full_unstemmed Strontium-isotope stratigraphy of the Aptian–Albian transition inthe western Maestrat Basin (E Iberia)
title_sort Strontium-isotope stratigraphy of the Aptian–Albian transition inthe western Maestrat Basin (E Iberia)
dc.creator.none.fl_str_mv Bover-Arnal, Telm
Pascual-Cebrian, Enric
Moreno-Bedmar, Josep Anton
Salas, Ramon (Salas Roig)
author Bover-Arnal, Telm
author_facet Bover-Arnal, Telm
Pascual-Cebrian, Enric
Moreno-Bedmar, Josep Anton
Salas, Ramon (Salas Roig)
author_role author
author2 Pascual-Cebrian, Enric
Moreno-Bedmar, Josep Anton
Salas, Ramon (Salas Roig)
author2_role author
author
author
dc.subject.none.fl_str_mv Estratigrafia
Roques calcàries
Mol·luscs fòssils
Paleontologia
Stratigraphic geology
Carbonate rocks
Mollusks fossil
Paleontology
topic Estratigrafia
Roques calcàries
Mol·luscs fòssils
Paleontologia
Stratigraphic geology
Carbonate rocks
Mollusks fossil
Paleontology
description The Aptian–Albian transition in the Maestrat Basin (E Iberian Chain) encompasses two lithostratigraphic units:</p><p>the Benassal and Escucha formations. In some sectors of the basin, such as the western Galve and Las Parras</p><p>sub-basins, this stratigraphic interval recorded a progressive shift from widespread carbonate platform settings</p><p>to coastal siliciclastic-influenced and coal-bearing environments. Due to the transitional nature of this interval,</p><p>establishing a clear stratigraphic boundary between the upper part of the Benassal Formation and the lower part</p><p>of the Escucha Formation is challenging. Additionally, there is no unanimous agreement on the age range of</p><p>these formations. To shed light on the stratigraphic location of the boundary between the Aptian and the Albian,</p><p>strontium-isotope analyses were carried out on thirteen low-Mg calcite oyster shells to derive numerical ages.</p><p>In the Las Parras Sub-basin, the 87Sr/86Sr values obtained from the siliciclastic-influenced transitional deposits</p><p>between the Benassal and Escucha formations, as well as from the lowermost part of the Escucha Formation,</p><p>range from 0.707282±0.000002 to 0.707410±0.000002. These Sr-isotope ratios translate into numerical ages that constrain this stratigraphic interval to the early Albian. The oyster shells collected in the Galve Sub-basin exhibit a higher degree of diagenetic alteration. Nevertheless, the least altered specimens analysed from the lower part of the transitional facies between the Benassal and Escucha formations in this latter sub-basin yielded Sr-isotope ratios between 0.707197±0.000003 and 0.707256±0.000002. These values correspond to ages spanning from the latest Aptian to the earliest Albian. Accordingly, in most sectors of the western Maestrat Basin, the Aptian–Albian boundary is likely to be stratigraphically located at the lowermost part of the transitional facies between the Benassal and Escucha formations.
publishDate 2025
dc.date.none.fl_str_mv 2025
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/2445/227521
url https://hdl.handle.net/2445/227521
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/10.1344/GeologicaActa2025.23.27
Geologica Acta, 2025, vol. 23, p. 1-21
https://doi.org/10.1344/GeologicaActa2025.23.27
dc.rights.none.fl_str_mv cc-by-sa (c) Bover-Arnal, T. et al., 2025
http://creativecommons.org/licenses/by-sa/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-sa (c) Bover-Arnal, T. et al., 2025
http://creativecommons.org/licenses/by-sa/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv (UB). (ICTJA). (IDEA). (UAB). (CSIC)
publisher.none.fl_str_mv (UB). (ICTJA). (IDEA). (UAB). (CSIC)
dc.source.none.fl_str_mv Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
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
_version_ 1869411617680130048
score 15,811543

Similares en LA Referencia