Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological record

Autores
González Estebenet, María Sol; Guler, Maria Veronica; Navarro, Edgardo Luis; Palazzesi, Luis; Barreda, Viviana Dora; Perez Panera, Juan Pablo; Carames, Andrea Alejandra
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Península Valdés es-1 well exhibits the most complete stratigraphic record of an important Danian Atlantic marine event in Patagonia, Argentina. Biostratigraphic analysis of organic-walled dinoflagellate cysts (dinocysts) along with sporomorphs, calcareous nannofossils and foraminiferal complementary data allowed the identification of three stratigraphic intervals of earliest Danian, early to middle Danian and late Danian ages. Diagnostic palynomorph events were recognized including the highest occurrences of the dinocysts Danea californica and Senoniasphaera inornata; the highest common occurrences of Trithyrodinium evittii and Trithyridinium verrucosum. A basal spike of the Cheirolepidiaceae pollen Classopollis provides further evidence of the flourishing of this opportunistic taxon in disturbed ecosystems related to the K/P mass extinction event. The nannofossil zones NP1 to NP4 were identified throughout the section, as well as the foraminifera zones P1b–P1c in the middle and upper part. The microfossil composition reveals fluctuating proximal and neritic environments, as well as a maximum flooding episode; the latter, indicated by the outer neritic Spiniferites, the oceanic taxa Impagidinium, along with a glauconitic level. Two warm-sea surface temperature episodes were identified; the oldest, in the early Danian, indicated by the thermophilic dinocysts Trithyrodinium, Hafniasphera and Cordospheridium; and the youngest, in the late Danian, marked by Glaphyrocysta, Hafniasphaera, Tectatodinium pellitum and Pierceites spp. together with frost-intolerant sporomorph taxa and the warm-water foraminifer Boltovskoyella paleocenica. This study contributes to the Argentina paleogeography, achieving a refined marine reconstruction model for the early Paleocene.
Fil: González Estebenet, María Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Guler, Maria Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Navarro, Edgardo Luis. Universidad Nacional del Sur; Argentina
Fil: Palazzesi, Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Barreda, Viviana Dora. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Perez Panera, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. YPF - Tecnología; Argentina
Fil: Carames, Andrea Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Materia
MICROFOSSILS
EARLY PALEOCENE
ARGENTINA
BIOSTRATIGRAPHY
PALEOENVIRONMENT
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/259391
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological recordGonzález Estebenet, María SolGuler, Maria VeronicaNavarro, Edgardo LuisPalazzesi, LuisBarreda, Viviana DoraPerez Panera, Juan PabloCarames, Andrea AlejandraMICROFOSSILSEARLY PALEOCENEARGENTINABIOSTRATIGRAPHYPALEOENVIRONMENThttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Península Valdés es-1 well exhibits the most complete stratigraphic record of an important Danian Atlantic marine event in Patagonia, Argentina. Biostratigraphic analysis of organic-walled dinoflagellate cysts (dinocysts) along with sporomorphs, calcareous nannofossils and foraminiferal complementary data allowed the identification of three stratigraphic intervals of earliest Danian, early to middle Danian and late Danian ages. Diagnostic palynomorph events were recognized including the highest occurrences of the dinocysts Danea californica and Senoniasphaera inornata; the highest common occurrences of Trithyrodinium evittii and Trithyridinium verrucosum. A basal spike of the Cheirolepidiaceae pollen Classopollis provides further evidence of the flourishing of this opportunistic taxon in disturbed ecosystems related to the K/P mass extinction event. The nannofossil zones NP1 to NP4 were identified throughout the section, as well as the foraminifera zones P1b–P1c in the middle and upper part. The microfossil composition reveals fluctuating proximal and neritic environments, as well as a maximum flooding episode; the latter, indicated by the outer neritic Spiniferites, the oceanic taxa Impagidinium, along with a glauconitic level. Two warm-sea surface temperature episodes were identified; the oldest, in the early Danian, indicated by the thermophilic dinocysts Trithyrodinium, Hafniasphera and Cordospheridium; and the youngest, in the late Danian, marked by Glaphyrocysta, Hafniasphaera, Tectatodinium pellitum and Pierceites spp. together with frost-intolerant sporomorph taxa and the warm-water foraminifer Boltovskoyella paleocenica. This study contributes to the Argentina paleogeography, achieving a refined marine reconstruction model for the early Paleocene.Fil: González Estebenet, María Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; ArgentinaFil: Guler, Maria Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; ArgentinaFil: Navarro, Edgardo Luis. Universidad Nacional del Sur; ArgentinaFil: Palazzesi, Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Barreda, Viviana Dora. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Perez Panera, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. YPF - Tecnología; ArgentinaFil: Carames, Andrea Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaElsevier2025-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/259391González Estebenet, María Sol; Guler, Maria Veronica; Navarro, Edgardo Luis; Palazzesi, Luis; Barreda, Viviana Dora; et al.; Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological record; Elsevier; Evolving Earth; 3; 100052; 1-2025; 1-222950-1172CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.eve.2024.100052info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2950117224000220info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:56:43Zoai:ri.conicet.gov.ar:11336/259391instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:56:43.237CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological record
title Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological record
spellingShingle Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological record
González Estebenet, María Sol
MICROFOSSILS
EARLY PALEOCENE
ARGENTINA
BIOSTRATIGRAPHY
PALEOENVIRONMENT
title_short Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological record
title_full Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological record
title_fullStr Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological record
title_full_unstemmed Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological record
title_sort Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological record
dc.creator.none.fl_str_mv González Estebenet, María Sol
Guler, Maria Veronica
Navarro, Edgardo Luis
Palazzesi, Luis
Barreda, Viviana Dora
Perez Panera, Juan Pablo
Carames, Andrea Alejandra
author González Estebenet, María Sol
author_facet González Estebenet, María Sol
Guler, Maria Veronica
Navarro, Edgardo Luis
Palazzesi, Luis
Barreda, Viviana Dora
Perez Panera, Juan Pablo
Carames, Andrea Alejandra
author_role author
author2 Guler, Maria Veronica
Navarro, Edgardo Luis
Palazzesi, Luis
Barreda, Viviana Dora
Perez Panera, Juan Pablo
Carames, Andrea Alejandra
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv MICROFOSSILS
EARLY PALEOCENE
ARGENTINA
BIOSTRATIGRAPHY
PALEOENVIRONMENT
topic MICROFOSSILS
EARLY PALEOCENE
ARGENTINA
BIOSTRATIGRAPHY
PALEOENVIRONMENT
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Península Valdés es-1 well exhibits the most complete stratigraphic record of an important Danian Atlantic marine event in Patagonia, Argentina. Biostratigraphic analysis of organic-walled dinoflagellate cysts (dinocysts) along with sporomorphs, calcareous nannofossils and foraminiferal complementary data allowed the identification of three stratigraphic intervals of earliest Danian, early to middle Danian and late Danian ages. Diagnostic palynomorph events were recognized including the highest occurrences of the dinocysts Danea californica and Senoniasphaera inornata; the highest common occurrences of Trithyrodinium evittii and Trithyridinium verrucosum. A basal spike of the Cheirolepidiaceae pollen Classopollis provides further evidence of the flourishing of this opportunistic taxon in disturbed ecosystems related to the K/P mass extinction event. The nannofossil zones NP1 to NP4 were identified throughout the section, as well as the foraminifera zones P1b–P1c in the middle and upper part. The microfossil composition reveals fluctuating proximal and neritic environments, as well as a maximum flooding episode; the latter, indicated by the outer neritic Spiniferites, the oceanic taxa Impagidinium, along with a glauconitic level. Two warm-sea surface temperature episodes were identified; the oldest, in the early Danian, indicated by the thermophilic dinocysts Trithyrodinium, Hafniasphera and Cordospheridium; and the youngest, in the late Danian, marked by Glaphyrocysta, Hafniasphaera, Tectatodinium pellitum and Pierceites spp. together with frost-intolerant sporomorph taxa and the warm-water foraminifer Boltovskoyella paleocenica. This study contributes to the Argentina paleogeography, achieving a refined marine reconstruction model for the early Paleocene.
Fil: González Estebenet, María Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Guler, Maria Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Navarro, Edgardo Luis. Universidad Nacional del Sur; Argentina
Fil: Palazzesi, Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Barreda, Viviana Dora. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Perez Panera, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. YPF - Tecnología; Argentina
Fil: Carames, Andrea Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
description The Península Valdés es-1 well exhibits the most complete stratigraphic record of an important Danian Atlantic marine event in Patagonia, Argentina. Biostratigraphic analysis of organic-walled dinoflagellate cysts (dinocysts) along with sporomorphs, calcareous nannofossils and foraminiferal complementary data allowed the identification of three stratigraphic intervals of earliest Danian, early to middle Danian and late Danian ages. Diagnostic palynomorph events were recognized including the highest occurrences of the dinocysts Danea californica and Senoniasphaera inornata; the highest common occurrences of Trithyrodinium evittii and Trithyridinium verrucosum. A basal spike of the Cheirolepidiaceae pollen Classopollis provides further evidence of the flourishing of this opportunistic taxon in disturbed ecosystems related to the K/P mass extinction event. The nannofossil zones NP1 to NP4 were identified throughout the section, as well as the foraminifera zones P1b–P1c in the middle and upper part. The microfossil composition reveals fluctuating proximal and neritic environments, as well as a maximum flooding episode; the latter, indicated by the outer neritic Spiniferites, the oceanic taxa Impagidinium, along with a glauconitic level. Two warm-sea surface temperature episodes were identified; the oldest, in the early Danian, indicated by the thermophilic dinocysts Trithyrodinium, Hafniasphera and Cordospheridium; and the youngest, in the late Danian, marked by Glaphyrocysta, Hafniasphaera, Tectatodinium pellitum and Pierceites spp. together with frost-intolerant sporomorph taxa and the warm-water foraminifer Boltovskoyella paleocenica. This study contributes to the Argentina paleogeography, achieving a refined marine reconstruction model for the early Paleocene.
publishDate 2025
dc.date.none.fl_str_mv 2025-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/259391
González Estebenet, María Sol; Guler, Maria Veronica; Navarro, Edgardo Luis; Palazzesi, Luis; Barreda, Viviana Dora; et al.; Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological record; Elsevier; Evolving Earth; 3; 100052; 1-2025; 1-22
2950-1172
CONICET Digital
CONICET
url http://hdl.handle.net/11336/259391
identifier_str_mv González Estebenet, María Sol; Guler, Maria Veronica; Navarro, Edgardo Luis; Palazzesi, Luis; Barreda, Viviana Dora; et al.; Biostratigraphy, paleoenvironment and paleoclimate in northeastern Patagonia during the early Paleocene based on the micropaleontological record; Elsevier; Evolving Earth; 3; 100052; 1-2025; 1-22
2950-1172
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.eve.2024.100052
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2950117224000220
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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