Palinología de la Formación Monte Chico (Cretácico tardío) de la provincia de Santa Cruz, Argentina: granos de polen de gimnospermas

Autores
Povilauskas, Leticia Karina
Año de publicación
2012
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Palynological assemblages composed by continental and marine palynomorphs were recovered from the Monte Chico Formation, late Cretaceous, Santa Cruz Province. In this contribution palynological assemblages shaped by pollen grains belonging to the gymnosperms were studied. The samples were taken from the all section of this unit. Sixteen species of pollen grains were here determined. They belong to the genera: Araucariacites, Classopollis, Cycadopites, Dacrycarpites, Gamerroites, Lygistepollenites, Microcachyridites, Phyllocladidites, Podocarpidites and Trisaccites. On the basis of the stratigraphic distribution of the identified species, mainly in Argentina and Antarctica, and joined with the preliminary analysis determinate of spores, a Maastrichtian-Late Maastrichtian age is here suggested. The palynological assemblages obtained would indicate a typically marine near of shore environment of deposition, with continental conditions towards to the upper section.
As assembleias palinológicas recuperadas dos sedimentos da Formação Monte Chico, Cretáceo superior, Província de Santa Cruz, apresentaram elementos marinhos (cistos de dinoflagelados) e continentais. Nesta contribuição foram estudadas as associações constituídas por grãos de pólen pertencentes às gimnospermas. As amostras foram recuperadas ao longo de toda a secção. Foram descritas dezesseis espécies de grãos de pólen, entre os gêneros: Araucariacites, Classopollis, Cycadopites, Dacrycarpites, Gamerroites, Lygistepollenites, Microcachyridites, Phyllocladidites, Podocarpidites e Trisaccites. Com base na distribuição estratigráfica das espécies identificadas, principalmente na Argentina e na Antártida, e juntamente com a análise dos esporos realizada anteriormente, sugere-se a idade Maastrichtiano a Maastrichtiano superior. A aglutinação palinológica recuperada indica um ambiente deposicional marinho, tipicamente perto do mar, com continentalização progressiva para a parte superior da secção.
Facultad de Ciencias Naturales y Museo
Consejo Nacional de Investigaciones Científicas y Técnicas
Materia
Ciencias Naturales
gymnosperms
Monte Chico Formation
Cretaceous
Argentina
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/120956
Acceder
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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Palinología de la Formación Monte Chico (Cretácico tardío) de la provincia de Santa Cruz, Argentina: granos de polen de gimnospermasPalynology of the Monte Chico Formation (Late Cretaceous) from Santa Cruz province, Argentina: pollen of gymnospermsPovilauskas, Leticia KarinaCiencias NaturalesgymnospermsMonte Chico FormationCretaceousArgentinaPalynological assemblages composed by continental and marine palynomorphs were recovered from the Monte Chico Formation, late Cretaceous, Santa Cruz Province. In this contribution palynological assemblages shaped by pollen grains belonging to the gymnosperms were studied. The samples were taken from the all section of this unit. Sixteen species of pollen grains were here determined. They belong to the genera: Araucariacites, Classopollis, Cycadopites, Dacrycarpites, Gamerroites, Lygistepollenites, Microcachyridites, Phyllocladidites, Podocarpidites and Trisaccites. On the basis of the stratigraphic distribution of the identified species, mainly in Argentina and Antarctica, and joined with the preliminary analysis determinate of spores, a Maastrichtian-Late Maastrichtian age is here suggested. The palynological assemblages obtained would indicate a typically marine near of shore environment of deposition, with continental conditions towards to the upper section.As assembleias palinológicas recuperadas dos sedimentos da Formação Monte Chico, Cretáceo superior, Província de Santa Cruz, apresentaram elementos marinhos (cistos de dinoflagelados) e continentais. Nesta contribuição foram estudadas as associações constituídas por grãos de pólen pertencentes às gimnospermas. As amostras foram recuperadas ao longo de toda a secção. Foram descritas dezesseis espécies de grãos de pólen, entre os gêneros: Araucariacites, Classopollis, Cycadopites, Dacrycarpites, Gamerroites, Lygistepollenites, Microcachyridites, Phyllocladidites, Podocarpidites e Trisaccites. Com base na distribuição estratigráfica das espécies identificadas, principalmente na Argentina e na Antártida, e juntamente com a análise dos esporos realizada anteriormente, sugere-se a idade Maastrichtiano a Maastrichtiano superior. A aglutinação palinológica recuperada indica um ambiente deposicional marinho, tipicamente perto do mar, com continentalização progressiva para a parte superior da secção.Facultad de Ciencias Naturales y MuseoConsejo Nacional de Investigaciones Científicas y Técnicas2012-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf85-94http://sedici.unlp.edu.ar/handle/10915/120956spainfo:eu-repo/semantics/altIdentifier/issn/1519-7530info:eu-repo/semantics/altIdentifier/doi/10.4072/rbp.2012.1.07info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:28:40Zoai:sedici.unlp.edu.ar:10915/120956Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:28:40.518SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Palinología de la Formación Monte Chico (Cretácico tardío) de la provincia de Santa Cruz, Argentina: granos de polen de gimnospermas
Palynology of the Monte Chico Formation (Late Cretaceous) from Santa Cruz province, Argentina: pollen of gymnosperms
title Palinología de la Formación Monte Chico (Cretácico tardío) de la provincia de Santa Cruz, Argentina: granos de polen de gimnospermas
spellingShingle Palinología de la Formación Monte Chico (Cretácico tardío) de la provincia de Santa Cruz, Argentina: granos de polen de gimnospermas
Povilauskas, Leticia Karina
Ciencias Naturales
gymnosperms
Monte Chico Formation
Cretaceous
Argentina
title_short Palinología de la Formación Monte Chico (Cretácico tardío) de la provincia de Santa Cruz, Argentina: granos de polen de gimnospermas
title_full Palinología de la Formación Monte Chico (Cretácico tardío) de la provincia de Santa Cruz, Argentina: granos de polen de gimnospermas
title_fullStr Palinología de la Formación Monte Chico (Cretácico tardío) de la provincia de Santa Cruz, Argentina: granos de polen de gimnospermas
title_full_unstemmed Palinología de la Formación Monte Chico (Cretácico tardío) de la provincia de Santa Cruz, Argentina: granos de polen de gimnospermas
title_sort Palinología de la Formación Monte Chico (Cretácico tardío) de la provincia de Santa Cruz, Argentina: granos de polen de gimnospermas
dc.creator.none.fl_str_mv Povilauskas, Leticia Karina
author Povilauskas, Leticia Karina
author_facet Povilauskas, Leticia Karina
author_role author
dc.subject.none.fl_str_mv Ciencias Naturales
gymnosperms
Monte Chico Formation
Cretaceous
Argentina
topic Ciencias Naturales
gymnosperms
Monte Chico Formation
Cretaceous
Argentina
dc.description.none.fl_txt_mv Palynological assemblages composed by continental and marine palynomorphs were recovered from the Monte Chico Formation, late Cretaceous, Santa Cruz Province. In this contribution palynological assemblages shaped by pollen grains belonging to the gymnosperms were studied. The samples were taken from the all section of this unit. Sixteen species of pollen grains were here determined. They belong to the genera: Araucariacites, Classopollis, Cycadopites, Dacrycarpites, Gamerroites, Lygistepollenites, Microcachyridites, Phyllocladidites, Podocarpidites and Trisaccites. On the basis of the stratigraphic distribution of the identified species, mainly in Argentina and Antarctica, and joined with the preliminary analysis determinate of spores, a Maastrichtian-Late Maastrichtian age is here suggested. The palynological assemblages obtained would indicate a typically marine near of shore environment of deposition, with continental conditions towards to the upper section.
As assembleias palinológicas recuperadas dos sedimentos da Formação Monte Chico, Cretáceo superior, Província de Santa Cruz, apresentaram elementos marinhos (cistos de dinoflagelados) e continentais. Nesta contribuição foram estudadas as associações constituídas por grãos de pólen pertencentes às gimnospermas. As amostras foram recuperadas ao longo de toda a secção. Foram descritas dezesseis espécies de grãos de pólen, entre os gêneros: Araucariacites, Classopollis, Cycadopites, Dacrycarpites, Gamerroites, Lygistepollenites, Microcachyridites, Phyllocladidites, Podocarpidites e Trisaccites. Com base na distribuição estratigráfica das espécies identificadas, principalmente na Argentina e na Antártida, e juntamente com a análise dos esporos realizada anteriormente, sugere-se a idade Maastrichtiano a Maastrichtiano superior. A aglutinação palinológica recuperada indica um ambiente deposicional marinho, tipicamente perto do mar, com continentalização progressiva para a parte superior da secção.
Facultad de Ciencias Naturales y Museo
Consejo Nacional de Investigaciones Científicas y Técnicas
description Palynological assemblages composed by continental and marine palynomorphs were recovered from the Monte Chico Formation, late Cretaceous, Santa Cruz Province. In this contribution palynological assemblages shaped by pollen grains belonging to the gymnosperms were studied. The samples were taken from the all section of this unit. Sixteen species of pollen grains were here determined. They belong to the genera: Araucariacites, Classopollis, Cycadopites, Dacrycarpites, Gamerroites, Lygistepollenites, Microcachyridites, Phyllocladidites, Podocarpidites and Trisaccites. On the basis of the stratigraphic distribution of the identified species, mainly in Argentina and Antarctica, and joined with the preliminary analysis determinate of spores, a Maastrichtian-Late Maastrichtian age is here suggested. The palynological assemblages obtained would indicate a typically marine near of shore environment of deposition, with continental conditions towards to the upper section.
publishDate 2012
dc.date.none.fl_str_mv 2012-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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info:ar-repo/semantics/articulo
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/120956
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dc.language.none.fl_str_mv spa
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dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1519-7530
info:eu-repo/semantics/altIdentifier/doi/10.4072/rbp.2012.1.07
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
85-94
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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