Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, Argentina
- Autores
- Bedoya Agudelo, Erika Lorena; Olivero, Eduardo Bernardo; Concheyro, Andrea; Torres Carbonell, Pablo Juan; Martinioni, Daniel Roberto
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Deep marine Paleocene to Oligocene turbidites are exposed in several localities along the Atlantic coast of Península Mitre, Tierra del Fuego (Olivero and Malumián, 2008; Torres Carbonell et al., 2009). At Cabo Leticia (Fig. 1), the Paleocene sandstone-conglomerate package of the Cabo Leticia Formation is transitionally covered by the La Barca Formation, which consists of two members; a lower upper Paleocene sandstonemudstone dominated LB1 Member and an upper organic-rich mudstone-dominated LB2Member. At Punta Noguera (Fig.1), the La Barca Formation is interpreted to underlie lowermost Eocene turbidites of the Punta Noguera Formation (Olivero et al., 2002; Malumián, et al., 2009). The late Paleocene age of the lower LB1 Member of the La Barca Formation was initially established on the basis of foraminifera and dinocysts (Olivero et al., 2002; Malumián and Caramés, 2002). New studies at Punta Ainol (Fig. 1) have also found a diagnostic late Paleocene assemblage of calcareous benthic foraminifera contained in organic-rich mudstones interpreted as part of the LB2 Member, which suggests a late Paleocene age for the whole formation (Sample PT Sur, Torres Carbonell et al., 2009).Agglutinated foraminifera are dominant in the La Barca Formation, and only two isolated horizons preserve calcareous benthic foraminifera (Malumián and Jannou, 2010), whereas planktonic foraminifera and calcareous nannofossils have not been previously found in the formation (Malumián and Jannou, 2010). As part of ongoing research devoted to the study of calcareous nannofossils from Tierra del Fuego, we have analyzed samples from the La Barca Formation, both at its type locality in Cabo Leticia and from the mudstones exposed at Punta Ainol. None of the samples processed from the type locality of the La Barca Formation were fertile. Nevertheless, the organic-rich mudstones samples from Punta Ainol are fossiliferous and contain calcareous nannofossils that correlate with other Paleocene-Eocene assemblages from the Southern Hemisphere. Thus, the main goal of our study is to document the nannofossil assemblages and to interpret their stratigraphic and paleoenvironmental implications.
Fil: Bedoya Agudelo, Erika Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Olivero, Eduardo Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur. Instituto de Ciencias Polares, Recursos Naturales y Ambiente. Departamento de Biología; Argentina
Fil: Concheyro, Andrea. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos ; Argentina
Fil: Torres Carbonell, Pablo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Martinioni, Daniel Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur. Instituto de Ciencias Polares, Recursos Naturales y Ambiente. Departamento de Biología; Argentina - Materia
-
AUSTRAL BASIN
BIOSTRATIGRAPHY
CALCAREOUS NANNOFOSSILS
FUEGIAN ANDES
PALEOCENE/EOCENE BOUNDARY - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/63545
Ver los metadatos del registro completo
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Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, ArgentinaBedoya Agudelo, Erika LorenaOlivero, Eduardo BernardoConcheyro, AndreaTorres Carbonell, Pablo JuanMartinioni, Daniel RobertoAUSTRAL BASINBIOSTRATIGRAPHYCALCAREOUS NANNOFOSSILSFUEGIAN ANDESPALEOCENE/EOCENE BOUNDARYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Deep marine Paleocene to Oligocene turbidites are exposed in several localities along the Atlantic coast of Península Mitre, Tierra del Fuego (Olivero and Malumián, 2008; Torres Carbonell et al., 2009). At Cabo Leticia (Fig. 1), the Paleocene sandstone-conglomerate package of the Cabo Leticia Formation is transitionally covered by the La Barca Formation, which consists of two members; a lower upper Paleocene sandstonemudstone dominated LB1 Member and an upper organic-rich mudstone-dominated LB2Member. At Punta Noguera (Fig.1), the La Barca Formation is interpreted to underlie lowermost Eocene turbidites of the Punta Noguera Formation (Olivero et al., 2002; Malumián, et al., 2009). The late Paleocene age of the lower LB1 Member of the La Barca Formation was initially established on the basis of foraminifera and dinocysts (Olivero et al., 2002; Malumián and Caramés, 2002). New studies at Punta Ainol (Fig. 1) have also found a diagnostic late Paleocene assemblage of calcareous benthic foraminifera contained in organic-rich mudstones interpreted as part of the LB2 Member, which suggests a late Paleocene age for the whole formation (Sample PT Sur, Torres Carbonell et al., 2009).Agglutinated foraminifera are dominant in the La Barca Formation, and only two isolated horizons preserve calcareous benthic foraminifera (Malumián and Jannou, 2010), whereas planktonic foraminifera and calcareous nannofossils have not been previously found in the formation (Malumián and Jannou, 2010). As part of ongoing research devoted to the study of calcareous nannofossils from Tierra del Fuego, we have analyzed samples from the La Barca Formation, both at its type locality in Cabo Leticia and from the mudstones exposed at Punta Ainol. None of the samples processed from the type locality of the La Barca Formation were fertile. Nevertheless, the organic-rich mudstones samples from Punta Ainol are fossiliferous and contain calcareous nannofossils that correlate with other Paleocene-Eocene assemblages from the Southern Hemisphere. Thus, the main goal of our study is to document the nannofossil assemblages and to interpret their stratigraphic and paleoenvironmental implications.Fil: Bedoya Agudelo, Erika Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Olivero, Eduardo Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur. Instituto de Ciencias Polares, Recursos Naturales y Ambiente. Departamento de Biología; ArgentinaFil: Concheyro, Andrea. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos ; ArgentinaFil: Torres Carbonell, Pablo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Martinioni, Daniel Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur. Instituto de Ciencias Polares, Recursos Naturales y Ambiente. Departamento de Biología; ArgentinaAsociación Paleontológica Argentina2018-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63545Bedoya Agudelo, Erika Lorena; Olivero, Eduardo Bernardo; Concheyro, Andrea; Torres Carbonell, Pablo Juan; Martinioni, Daniel Roberto; Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, Argentina; Asociación Paleontológica Argentina; Ameghiniana; 55; 2; 5-2018; 223-2290002-70141851-8044CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.5710/AMGH.17.10.2017.3118info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/10.5710/AMGH.17.10.2017.3118info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:50:09Zoai:ri.conicet.gov.ar:11336/63545instacron: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:34982025-09-03 09:50:10.068CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, Argentina |
title |
Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, Argentina |
spellingShingle |
Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, Argentina Bedoya Agudelo, Erika Lorena AUSTRAL BASIN BIOSTRATIGRAPHY CALCAREOUS NANNOFOSSILS FUEGIAN ANDES PALEOCENE/EOCENE BOUNDARY |
title_short |
Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, Argentina |
title_full |
Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, Argentina |
title_fullStr |
Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, Argentina |
title_full_unstemmed |
Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, Argentina |
title_sort |
Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, Argentina |
dc.creator.none.fl_str_mv |
Bedoya Agudelo, Erika Lorena Olivero, Eduardo Bernardo Concheyro, Andrea Torres Carbonell, Pablo Juan Martinioni, Daniel Roberto |
author |
Bedoya Agudelo, Erika Lorena |
author_facet |
Bedoya Agudelo, Erika Lorena Olivero, Eduardo Bernardo Concheyro, Andrea Torres Carbonell, Pablo Juan Martinioni, Daniel Roberto |
author_role |
author |
author2 |
Olivero, Eduardo Bernardo Concheyro, Andrea Torres Carbonell, Pablo Juan Martinioni, Daniel Roberto |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
AUSTRAL BASIN BIOSTRATIGRAPHY CALCAREOUS NANNOFOSSILS FUEGIAN ANDES PALEOCENE/EOCENE BOUNDARY |
topic |
AUSTRAL BASIN BIOSTRATIGRAPHY CALCAREOUS NANNOFOSSILS FUEGIAN ANDES PALEOCENE/EOCENE BOUNDARY |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Deep marine Paleocene to Oligocene turbidites are exposed in several localities along the Atlantic coast of Península Mitre, Tierra del Fuego (Olivero and Malumián, 2008; Torres Carbonell et al., 2009). At Cabo Leticia (Fig. 1), the Paleocene sandstone-conglomerate package of the Cabo Leticia Formation is transitionally covered by the La Barca Formation, which consists of two members; a lower upper Paleocene sandstonemudstone dominated LB1 Member and an upper organic-rich mudstone-dominated LB2Member. At Punta Noguera (Fig.1), the La Barca Formation is interpreted to underlie lowermost Eocene turbidites of the Punta Noguera Formation (Olivero et al., 2002; Malumián, et al., 2009). The late Paleocene age of the lower LB1 Member of the La Barca Formation was initially established on the basis of foraminifera and dinocysts (Olivero et al., 2002; Malumián and Caramés, 2002). New studies at Punta Ainol (Fig. 1) have also found a diagnostic late Paleocene assemblage of calcareous benthic foraminifera contained in organic-rich mudstones interpreted as part of the LB2 Member, which suggests a late Paleocene age for the whole formation (Sample PT Sur, Torres Carbonell et al., 2009).Agglutinated foraminifera are dominant in the La Barca Formation, and only two isolated horizons preserve calcareous benthic foraminifera (Malumián and Jannou, 2010), whereas planktonic foraminifera and calcareous nannofossils have not been previously found in the formation (Malumián and Jannou, 2010). As part of ongoing research devoted to the study of calcareous nannofossils from Tierra del Fuego, we have analyzed samples from the La Barca Formation, both at its type locality in Cabo Leticia and from the mudstones exposed at Punta Ainol. None of the samples processed from the type locality of the La Barca Formation were fertile. Nevertheless, the organic-rich mudstones samples from Punta Ainol are fossiliferous and contain calcareous nannofossils that correlate with other Paleocene-Eocene assemblages from the Southern Hemisphere. Thus, the main goal of our study is to document the nannofossil assemblages and to interpret their stratigraphic and paleoenvironmental implications. Fil: Bedoya Agudelo, Erika Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Olivero, Eduardo Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur. Instituto de Ciencias Polares, Recursos Naturales y Ambiente. Departamento de Biología; Argentina Fil: Concheyro, Andrea. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos ; Argentina Fil: Torres Carbonell, Pablo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Martinioni, Daniel Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur. Instituto de Ciencias Polares, Recursos Naturales y Ambiente. Departamento de Biología; Argentina |
description |
Deep marine Paleocene to Oligocene turbidites are exposed in several localities along the Atlantic coast of Península Mitre, Tierra del Fuego (Olivero and Malumián, 2008; Torres Carbonell et al., 2009). At Cabo Leticia (Fig. 1), the Paleocene sandstone-conglomerate package of the Cabo Leticia Formation is transitionally covered by the La Barca Formation, which consists of two members; a lower upper Paleocene sandstonemudstone dominated LB1 Member and an upper organic-rich mudstone-dominated LB2Member. At Punta Noguera (Fig.1), the La Barca Formation is interpreted to underlie lowermost Eocene turbidites of the Punta Noguera Formation (Olivero et al., 2002; Malumián, et al., 2009). The late Paleocene age of the lower LB1 Member of the La Barca Formation was initially established on the basis of foraminifera and dinocysts (Olivero et al., 2002; Malumián and Caramés, 2002). New studies at Punta Ainol (Fig. 1) have also found a diagnostic late Paleocene assemblage of calcareous benthic foraminifera contained in organic-rich mudstones interpreted as part of the LB2 Member, which suggests a late Paleocene age for the whole formation (Sample PT Sur, Torres Carbonell et al., 2009).Agglutinated foraminifera are dominant in the La Barca Formation, and only two isolated horizons preserve calcareous benthic foraminifera (Malumián and Jannou, 2010), whereas planktonic foraminifera and calcareous nannofossils have not been previously found in the formation (Malumián and Jannou, 2010). As part of ongoing research devoted to the study of calcareous nannofossils from Tierra del Fuego, we have analyzed samples from the La Barca Formation, both at its type locality in Cabo Leticia and from the mudstones exposed at Punta Ainol. None of the samples processed from the type locality of the La Barca Formation were fertile. Nevertheless, the organic-rich mudstones samples from Punta Ainol are fossiliferous and contain calcareous nannofossils that correlate with other Paleocene-Eocene assemblages from the Southern Hemisphere. Thus, the main goal of our study is to document the nannofossil assemblages and to interpret their stratigraphic and paleoenvironmental implications. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-05 |
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/11336/63545 Bedoya Agudelo, Erika Lorena; Olivero, Eduardo Bernardo; Concheyro, Andrea; Torres Carbonell, Pablo Juan; Martinioni, Daniel Roberto; Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, Argentina; Asociación Paleontológica Argentina; Ameghiniana; 55; 2; 5-2018; 223-229 0002-7014 1851-8044 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/63545 |
identifier_str_mv |
Bedoya Agudelo, Erika Lorena; Olivero, Eduardo Bernardo; Concheyro, Andrea; Torres Carbonell, Pablo Juan; Martinioni, Daniel Roberto; Calcareous Nannofossils from the la Barca Formation (Paleocene/Eocene Boundary), Tierra Del Fuego, Argentina; Asociación Paleontológica Argentina; Ameghiniana; 55; 2; 5-2018; 223-229 0002-7014 1851-8044 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.5710/AMGH.17.10.2017.3118 info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/10.5710/AMGH.17.10.2017.3118 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Asociación Paleontológica Argentina |
publisher.none.fl_str_mv |
Asociación Paleontológica Argentina |
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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1842269016885821440 |
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13.13397 |