Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina

Autores
Barreda, Viviana Dora; Palamarczuk, Susana Carmen
Año de publicación
2000
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A preliminar palynostratigraphic framework is proposed for Cenozoic deposits cropping out in the southern San Jorge Gulf area, Santa Cruz Province, Argentina. Pollen and spores assemblages and associated dinoflagellate cysts recovered from three sections, Mazarredo, Punta Nava and El Faro, were analysed. On the basis of the palynological content two units were recognised and inforrnally named: Unit 1 and Unit 2. Unit 1, represented in Mazarredo and Punta Nava sections, was assigned to the Late Oligocene. The paleoenvironment was identified as a lagoon for the former and inner shelf for the latter. The underlying Unit 2, comprising the top of Punta Nava and El Faro sections, is onsidered to be Early Miocene in age and deposited in a sublitoral to coastal environment. It can be correlated with the Cheuque Formation (Chubut Province). Both dinoflagellate cyst and adjacent land derived pollen and spores suggest humid and warm -temperate climatic conditions for the Late Oligocene and a slight deterioration for the Early Miocene.
Fil: Barreda, Viviana Dora. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Invest.en Rec.geologicos (i); Argentina
Fil: Palamarczuk, Susana Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Invest.en Rec.geologicos (i); Argentina
Materia
Polen
Dinoflagelados
Oligoceno
Mioceno
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/71695
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/71695
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, ArgentinaBarreda, Viviana DoraPalamarczuk, Susana CarmenPolenDinoflageladosOligocenoMiocenohttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1A preliminar palynostratigraphic framework is proposed for Cenozoic deposits cropping out in the southern San Jorge Gulf area, Santa Cruz Province, Argentina. Pollen and spores assemblages and associated dinoflagellate cysts recovered from three sections, Mazarredo, Punta Nava and El Faro, were analysed. On the basis of the palynological content two units were recognised and inforrnally named: Unit 1 and Unit 2. Unit 1, represented in Mazarredo and Punta Nava sections, was assigned to the Late Oligocene. The paleoenvironment was identified as a lagoon for the former and inner shelf for the latter. The underlying Unit 2, comprising the top of Punta Nava and El Faro sections, is onsidered to be Early Miocene in age and deposited in a sublitoral to coastal environment. It can be correlated with the Cheuque Formation (Chubut Province). Both dinoflagellate cyst and adjacent land derived pollen and spores suggest humid and warm -temperate climatic conditions for the Late Oligocene and a slight deterioration for the Early Miocene.Fil: Barreda, Viviana Dora. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Invest.en Rec.geologicos (i); ArgentinaFil: Palamarczuk, Susana Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Invest.en Rec.geologicos (i); ArgentinaAsociacion Paleontologica Argentina2000-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/71695Barreda, Viviana Dora; Palamarczuk, Susana Carmen; Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina; Asociacion Paleontologica Argentina; Ameghiniana; 37; 1; 3-2000; 103-1170002-70141851-8044CONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/http://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2521info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:11:01Zoai:ri.conicet.gov.ar:11336/71695instacron: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:34982025-09-29 10:11:02.197CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina
title Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina
spellingShingle Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina
Barreda, Viviana Dora
Polen
Dinoflagelados
Oligoceno
Mioceno
title_short Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina
title_full Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina
title_fullStr Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina
title_full_unstemmed Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina
title_sort Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina
dc.creator.none.fl_str_mv Barreda, Viviana Dora
Palamarczuk, Susana Carmen
author Barreda, Viviana Dora
author_facet Barreda, Viviana Dora
Palamarczuk, Susana Carmen
author_role author
author2 Palamarczuk, Susana Carmen
author2_role author
dc.subject.none.fl_str_mv Polen
Dinoflagelados
Oligoceno
Mioceno
topic Polen
Dinoflagelados
Oligoceno
Mioceno
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A preliminar palynostratigraphic framework is proposed for Cenozoic deposits cropping out in the southern San Jorge Gulf area, Santa Cruz Province, Argentina. Pollen and spores assemblages and associated dinoflagellate cysts recovered from three sections, Mazarredo, Punta Nava and El Faro, were analysed. On the basis of the palynological content two units were recognised and inforrnally named: Unit 1 and Unit 2. Unit 1, represented in Mazarredo and Punta Nava sections, was assigned to the Late Oligocene. The paleoenvironment was identified as a lagoon for the former and inner shelf for the latter. The underlying Unit 2, comprising the top of Punta Nava and El Faro sections, is onsidered to be Early Miocene in age and deposited in a sublitoral to coastal environment. It can be correlated with the Cheuque Formation (Chubut Province). Both dinoflagellate cyst and adjacent land derived pollen and spores suggest humid and warm -temperate climatic conditions for the Late Oligocene and a slight deterioration for the Early Miocene.
Fil: Barreda, Viviana Dora. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Invest.en Rec.geologicos (i); Argentina
Fil: Palamarczuk, Susana Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Invest.en Rec.geologicos (i); Argentina
description A preliminar palynostratigraphic framework is proposed for Cenozoic deposits cropping out in the southern San Jorge Gulf area, Santa Cruz Province, Argentina. Pollen and spores assemblages and associated dinoflagellate cysts recovered from three sections, Mazarredo, Punta Nava and El Faro, were analysed. On the basis of the palynological content two units were recognised and inforrnally named: Unit 1 and Unit 2. Unit 1, represented in Mazarredo and Punta Nava sections, was assigned to the Late Oligocene. The paleoenvironment was identified as a lagoon for the former and inner shelf for the latter. The underlying Unit 2, comprising the top of Punta Nava and El Faro sections, is onsidered to be Early Miocene in age and deposited in a sublitoral to coastal environment. It can be correlated with the Cheuque Formation (Chubut Province). Both dinoflagellate cyst and adjacent land derived pollen and spores suggest humid and warm -temperate climatic conditions for the Late Oligocene and a slight deterioration for the Early Miocene.
publishDate 2000
dc.date.none.fl_str_mv 2000-03
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/11336/71695
Barreda, Viviana Dora; Palamarczuk, Susana Carmen; Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina; Asociacion Paleontologica Argentina; Ameghiniana; 37; 1; 3-2000; 103-117
0002-7014
1851-8044
CONICET Digital
CONICET
url http://hdl.handle.net/11336/71695
identifier_str_mv Barreda, Viviana Dora; Palamarczuk, Susana Carmen; Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno, en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina; Asociacion Paleontologica Argentina; Ameghiniana; 37; 1; 3-2000; 103-117
0002-7014
1851-8044
CONICET Digital
CONICET
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2521
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 Asociacion Paleontologica Argentina
publisher.none.fl_str_mv Asociacion Paleontologica 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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score 13.070432

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