Witnesses of early Pliocene sea-level rise in Manilva Basin (Málaga, S Spain)

The Sierra de la Utrera, a relief in the Manilva Basin (Málaga, SW Spain), shows bored surfaces at different heights above present-day sea level, from 96 m to 287 m. Borings occur in the eastern, central, and western parts of the Canuto de la Utrera, a prominent gorge in the central-southern part of...

Descripción completa

Detalles Bibliográficos
Autores: Aguirre, Julio, Domènech, Rosa, Martinell, Jordi, 1948-, Mayoral, Eduardo, Santos, Ana, Pérez-Asensio, José N. (José Noel)
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/121722
Acceso en línea:https://hdl.handle.net/2445/121722
Access Level:acceso abierto
Palabra clave:Icnologia
Erosió dels sòls
Utrera (Andalusia)
Ichnology
Soil erosion
id ES_16d2cf5bbd4dc297aae827e98c5cfba8
oai_identifier_str oai:diposit.ub.edu:2445/121722
network_acronym_str ES
network_name_str España
repository_id_str
spelling Witnesses of early Pliocene sea-level rise in Manilva Basin (Málaga, S Spain)Aguirre, JulioDomènech, RosaMartinell, Jordi, 1948-Mayoral, EduardoSantos, AnaPérez-Asensio, José N. (José Noel)IcnologiaErosió dels sòlsUtrera (Andalusia)IchnologySoil erosionUtrera (Andalusia)The Sierra de la Utrera, a relief in the Manilva Basin (Málaga, SW Spain), shows bored surfaces at different heights above present-day sea level, from 96 m to 287 m. Borings occur in the eastern, central, and western parts of the Canuto de la Utrera, a prominent gorge in the central-southern part of the relief excavated in Mesozoic limestones, as well as on the western end of the Canuto Chico, a smaller canyon in the northern part. Pliocene marine deposits fossilized the bored surfaces. Bored boulders of the substrate are embedded in the Pliocene sediments. The traces Gastrochaenolites ispp., Entobia ispp., Caulostrepsis ispp., Circolites kotoucensis, and Ericichnus asgaardi have been identifi ed. Among these, Caulostrepsis is found only in the reworked blocks. This ichnoassemblage, attributed to the archetypical Entobia Ichnofacies of rocky shores, represents boring activity in high-energy, very-shallow-water settings, close to the sea level, and with a virtually null sedimentation rate. The vertical distribution of bored surfaces attests to a progressive sea-level rise. The onlap of the Pliocene deposits on the substrate is consistent with the deepening trend. Planktonic foraminiferal assemblages collected from the sediment adjacent to the Sierra de la Utrera demonstrate that boring activity spanned, at most, 1 Ma during the early Pliocene, Zanclean (biozones MPl 1 and MPl 2), ranging from 5.33 to 4.36 Ma. Benthic foraminiferal assemblages indicate oligotrophic, well-oxygenated, deepwater conditions bordering the substrate. The presence of nearly vertical, deep submarine cliffs surrounding the relief accounts for these conditions very close to the substrate.Sociedad Española de Paleontología2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/121722Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: http://sepaleontologia.es/sjp-2017-vol32-no-1/Spanish Journal of Palaeontology, 2017, vol. 32, num. 1, p. 35-52(c) Sociedad Española de Paleontología, 2017info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1217222026-05-27T06:46:51Z
dc.title.none.fl_str_mv Witnesses of early Pliocene sea-level rise in Manilva Basin (Málaga, S Spain)
title Witnesses of early Pliocene sea-level rise in Manilva Basin (Málaga, S Spain)
spellingShingle Witnesses of early Pliocene sea-level rise in Manilva Basin (Málaga, S Spain)
Aguirre, Julio
Icnologia
Erosió dels sòls
Utrera (Andalusia)
Ichnology
Soil erosion
Utrera (Andalusia)
title_short Witnesses of early Pliocene sea-level rise in Manilva Basin (Málaga, S Spain)
title_full Witnesses of early Pliocene sea-level rise in Manilva Basin (Málaga, S Spain)
title_fullStr Witnesses of early Pliocene sea-level rise in Manilva Basin (Málaga, S Spain)
title_full_unstemmed Witnesses of early Pliocene sea-level rise in Manilva Basin (Málaga, S Spain)
title_sort Witnesses of early Pliocene sea-level rise in Manilva Basin (Málaga, S Spain)
dc.creator.none.fl_str_mv Aguirre, Julio
Domènech, Rosa
Martinell, Jordi, 1948-
Mayoral, Eduardo
Santos, Ana
Pérez-Asensio, José N. (José Noel)
author Aguirre, Julio
author_facet Aguirre, Julio
Domènech, Rosa
Martinell, Jordi, 1948-
Mayoral, Eduardo
Santos, Ana
Pérez-Asensio, José N. (José Noel)
author_role author
author2 Domènech, Rosa
Martinell, Jordi, 1948-
Mayoral, Eduardo
Santos, Ana
Pérez-Asensio, José N. (José Noel)
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Icnologia
Erosió dels sòls
Utrera (Andalusia)
Ichnology
Soil erosion
Utrera (Andalusia)
topic Icnologia
Erosió dels sòls
Utrera (Andalusia)
Ichnology
Soil erosion
Utrera (Andalusia)
description The Sierra de la Utrera, a relief in the Manilva Basin (Málaga, SW Spain), shows bored surfaces at different heights above present-day sea level, from 96 m to 287 m. Borings occur in the eastern, central, and western parts of the Canuto de la Utrera, a prominent gorge in the central-southern part of the relief excavated in Mesozoic limestones, as well as on the western end of the Canuto Chico, a smaller canyon in the northern part. Pliocene marine deposits fossilized the bored surfaces. Bored boulders of the substrate are embedded in the Pliocene sediments. The traces Gastrochaenolites ispp., Entobia ispp., Caulostrepsis ispp., Circolites kotoucensis, and Ericichnus asgaardi have been identifi ed. Among these, Caulostrepsis is found only in the reworked blocks. This ichnoassemblage, attributed to the archetypical Entobia Ichnofacies of rocky shores, represents boring activity in high-energy, very-shallow-water settings, close to the sea level, and with a virtually null sedimentation rate. The vertical distribution of bored surfaces attests to a progressive sea-level rise. The onlap of the Pliocene deposits on the substrate is consistent with the deepening trend. Planktonic foraminiferal assemblages collected from the sediment adjacent to the Sierra de la Utrera demonstrate that boring activity spanned, at most, 1 Ma during the early Pliocene, Zanclean (biozones MPl 1 and MPl 2), ranging from 5.33 to 4.36 Ma. Benthic foraminiferal assemblages indicate oligotrophic, well-oxygenated, deepwater conditions bordering the substrate. The presence of nearly vertical, deep submarine cliffs surrounding the relief accounts for these conditions very close to the substrate.
publishDate 2017
dc.date.none.fl_str_mv 2017
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/2445/121722
url https://hdl.handle.net/2445/121722
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: http://sepaleontologia.es/sjp-2017-vol32-no-1/
Spanish Journal of Palaeontology, 2017, vol. 32, num. 1, p. 35-52
dc.rights.none.fl_str_mv (c) Sociedad Española de Paleontología, 2017
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Sociedad Española de Paleontología, 2017
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedad Española de Paleontología
publisher.none.fl_str_mv Sociedad Española de Paleontología
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
_version_ 1869403880584904704
score 15,300719

Similares en LA Referencia