Paleocene larger foraminifera from the Pyrenean basin with a recalibration of the Paleocene Shallow Benthic Zones

A taxonomic study of the larger foraminifera found in Paleocene rocks from the Pyrenean basin has led to the description of sixty taxa including two new species: Alveolina korresensis and Valvulineria bacetai. In this work, we present a chronostratigraphic recalibration of the Paleocene Shallow Bent...

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Autores: Serra-Kiel, Josep, Vicedo, Vicent, Baceta, J.I., Bernaola, G., Robador, A.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2072/376067
Acesso em linha:http://hdl.handle.net/2072/376067
https://doi.org/10.1344/GeologicaActa2020.18.8
Access Level:acceso abierto
Palavra-chave:Foraminífers fòssils
Bioestratigrafia
Paleocè
Pirineus
56
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spelling Paleocene larger foraminifera from the Pyrenean basin with a recalibration of the Paleocene Shallow Benthic ZonesSerra-Kiel, JosepVicedo, VicentBaceta, J.I.Bernaola, G.Robador, A.Foraminífers fòssilsBioestratigrafiaPaleocèPirineus56A taxonomic study of the larger foraminifera found in Paleocene rocks from the Pyrenean basin has led to the description of sixty taxa including two new species: Alveolina korresensis and Valvulineria bacetai. In this work, we present a chronostratigraphic recalibration of the Paleocene Shallow Benthic Zones (SBZ 1 to SBZ 4) based on correlation with calcareous nannofossil and planktic foraminifera biozones, all integrated within the stratigraphic framework of Paleocene platform to basin depositional sequences established for the whole Pyrenean domain. The samples were collected in autochtonous and parautochtonous deposits from ten key shallow platform stratigraphic sections, representative from coastal to platform margin depositional settings. The results from two base of slope sections with numerous intercalations of calcareous turbidites with penecontemporaneous platform-derived biota have been integrated in the study. The regional chronostratigraphic framework is derived from magneto-biochronological studies carried out in the Zumaia section, global reference section for the Danian-Selandian and Selandian-Thanertian GSSPs. The new calibration of the Paleocene SBZs is summarized as follows. The SBZ 1 is constrained to the first 1.09 m.y. of the Paleocene; this first Paleogene biozone lacks distinct larger foraminifera biomarkers and thus is defined by an association of non-exclusive taxa composed of Valvulineria patalaensis, Stomatorbina? binkhorsti, P.? antiqua and Bangiana hanseni. The SBZ 2 now appears as the biozone encompassing most of the Danian stage (from ca. 64.91 m.y. to 61.6 m.y.), and is characterized by the association of Haymanella elongata, Haymanella paleocenica, Kayseriella decastroi, Rotospirella conica, Pyrenerotalia depressa, Elazigina dienii and Paralockhartia eos. The SBZ 2-SBZ 3 boundary coincides with the base of the Selandian stage (ca. 61.6 m.y.). The SBZ 3 biozone is defined by Glomalveolina primaeva, Periloculina slovenica, Vania anatolica, Coskinon rajkae, Fallotella alavensis, Cribrobulimina carniolica, Miscellanea yvettae, Miscellanea juliettae, Miscellanites primitivus, Miscellanites minutus, Ranikothalia soldadensis, Nummulites heberti and Discocyclina seunesi. The SBZ 3-SBZ 4 boundary is now ascribed to ca. 57.2 m.y. The SBZ 4 biozone appears characterized by Glomalveolina levis, Alveolina korresensis, Hottingerina lukasi, Daviesina garumnensis, Assilina yvettae, Assilina azilensis and Nummulites catari. The SBZ 4-SBZ 5 boundary is placed at the Paleocene-Eocene boundary event (ca. 56.0 m.y.).2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion72 p.application/pdfhttp://hdl.handle.net/2072/376067https://doi.org/10.1344/GeologicaActa2020.18.8RECERCAT (Dipòsit de la Recerca de Catalunya)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésGeologica Acta, 18.8, 1-69, I-IIIL'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons:http://creativecommons.org/licenses/by-sa/4.0/(C) J. Serra-Kiel, V. Vicedo, J.I. Baceta, G. Bernaola, A. Robadorinfo:eu-repo/semantics/openAccessoai:recercat.cat:2072/3760672026-05-29T05:05:01Z
dc.title.none.fl_str_mv Paleocene larger foraminifera from the Pyrenean basin with a recalibration of the Paleocene Shallow Benthic Zones
title Paleocene larger foraminifera from the Pyrenean basin with a recalibration of the Paleocene Shallow Benthic Zones
spellingShingle Paleocene larger foraminifera from the Pyrenean basin with a recalibration of the Paleocene Shallow Benthic Zones
Serra-Kiel, Josep
Foraminífers fòssils
Bioestratigrafia
Paleocè
Pirineus
56
title_short Paleocene larger foraminifera from the Pyrenean basin with a recalibration of the Paleocene Shallow Benthic Zones
title_full Paleocene larger foraminifera from the Pyrenean basin with a recalibration of the Paleocene Shallow Benthic Zones
title_fullStr Paleocene larger foraminifera from the Pyrenean basin with a recalibration of the Paleocene Shallow Benthic Zones
title_full_unstemmed Paleocene larger foraminifera from the Pyrenean basin with a recalibration of the Paleocene Shallow Benthic Zones
title_sort Paleocene larger foraminifera from the Pyrenean basin with a recalibration of the Paleocene Shallow Benthic Zones
dc.creator.none.fl_str_mv Serra-Kiel, Josep
Vicedo, Vicent
Baceta, J.I.
Bernaola, G.
Robador, A.
author Serra-Kiel, Josep
author_facet Serra-Kiel, Josep
Vicedo, Vicent
Baceta, J.I.
Bernaola, G.
Robador, A.
author_role author
author2 Vicedo, Vicent
Baceta, J.I.
Bernaola, G.
Robador, A.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Foraminífers fòssils
Bioestratigrafia
Paleocè
Pirineus
56
topic Foraminífers fòssils
Bioestratigrafia
Paleocè
Pirineus
56
description A taxonomic study of the larger foraminifera found in Paleocene rocks from the Pyrenean basin has led to the description of sixty taxa including two new species: Alveolina korresensis and Valvulineria bacetai. In this work, we present a chronostratigraphic recalibration of the Paleocene Shallow Benthic Zones (SBZ 1 to SBZ 4) based on correlation with calcareous nannofossil and planktic foraminifera biozones, all integrated within the stratigraphic framework of Paleocene platform to basin depositional sequences established for the whole Pyrenean domain. The samples were collected in autochtonous and parautochtonous deposits from ten key shallow platform stratigraphic sections, representative from coastal to platform margin depositional settings. The results from two base of slope sections with numerous intercalations of calcareous turbidites with penecontemporaneous platform-derived biota have been integrated in the study. The regional chronostratigraphic framework is derived from magneto-biochronological studies carried out in the Zumaia section, global reference section for the Danian-Selandian and Selandian-Thanertian GSSPs. The new calibration of the Paleocene SBZs is summarized as follows. The SBZ 1 is constrained to the first 1.09 m.y. of the Paleocene; this first Paleogene biozone lacks distinct larger foraminifera biomarkers and thus is defined by an association of non-exclusive taxa composed of Valvulineria patalaensis, Stomatorbina? binkhorsti, P.? antiqua and Bangiana hanseni. The SBZ 2 now appears as the biozone encompassing most of the Danian stage (from ca. 64.91 m.y. to 61.6 m.y.), and is characterized by the association of Haymanella elongata, Haymanella paleocenica, Kayseriella decastroi, Rotospirella conica, Pyrenerotalia depressa, Elazigina dienii and Paralockhartia eos. The SBZ 2-SBZ 3 boundary coincides with the base of the Selandian stage (ca. 61.6 m.y.). The SBZ 3 biozone is defined by Glomalveolina primaeva, Periloculina slovenica, Vania anatolica, Coskinon rajkae, Fallotella alavensis, Cribrobulimina carniolica, Miscellanea yvettae, Miscellanea juliettae, Miscellanites primitivus, Miscellanites minutus, Ranikothalia soldadensis, Nummulites heberti and Discocyclina seunesi. The SBZ 3-SBZ 4 boundary is now ascribed to ca. 57.2 m.y. The SBZ 4 biozone appears characterized by Glomalveolina levis, Alveolina korresensis, Hottingerina lukasi, Daviesina garumnensis, Assilina yvettae, Assilina azilensis and Nummulites catari. The SBZ 4-SBZ 5 boundary is placed at the Paleocene-Eocene boundary event (ca. 56.0 m.y.).
publishDate 2020
dc.date.none.fl_str_mv 2020
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 http://hdl.handle.net/2072/376067
https://doi.org/10.1344/GeologicaActa2020.18.8
url http://hdl.handle.net/2072/376067
https://doi.org/10.1344/GeologicaActa2020.18.8
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Geologica Acta, 18.8, 1-69, I-III
dc.rights.none.fl_str_mv (C) J. Serra-Kiel, V. Vicedo, J.I. Baceta, G. Bernaola, A. Robador
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (C) J. Serra-Kiel, V. Vicedo, J.I. Baceta, G. Bernaola, A. Robador
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 72 p.
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dc.source.none.fl_str_mv RECERCAT (Dipòsit de la Recerca de Catalunya)
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reponame_str Recercat. Dipósit de la Recerca de Catalunya
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