Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western Gondwana
- Autores
- Rubinstein, Claudia Viviana; Petus, Elodie; Niemeyer, Hans
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The Middle Member of the Zorritas Formation in the Antofagasta region of northern Chile, yielded terrestrial and marine palynomorph assemblages which span the Devonian/Carboniferous boundary. The assemblages show a clear predominance of terrestrial palynomorphs with 70 miospore species, 18 marine phytoplankton species, two non-marine algae and one chitinozoan species, all coming from 15 productive levels. Palynomorphs are poorly preserved and most of them are reworked. Three palynological associations are recognized based on miospores. These are assigned to the Tournaisian–Visean, Tournaisian and probable latest Famennian. Age assignments are discussed in the frame of the spore zonal schemes established for Euramerica and western Gondwana. The stratigraphical distribution of spores allows the identification of the probable position of the Devonian/Carboniferous boundary within the Zorritas Formation. This system boundary is proposed for the first time in Palaeozoic sedimentary rocks of northern Chile. The presence of Gondwanan typical miospore species indicates affinities with this palaeocontinent even though the Tournaisian and Tournaisian–Visean miospore associations support the cosmopolitanism already suggested for the early Carboniferous flora. The significant number of reworked palynomorphs together with the sedimentological analysis of the studied sections, suggest that these deposits were severely impacted by the climatic change and major sea level fluctuations. Similar conditions were recorded in coeval western Gondwana basins.
Fil: Rubinstein, Claudia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Petus, Elodie. Université de Liège; Bélgica
Fil: Niemeyer, Hans. Universidad Católica del Norte; Chile - Materia
-
CHILE
DEVONIAN/CARBONIFEROUS BOUNDARY
MIOSPORES
PHYTOPLANKTON
WESTERN GONDWANA - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/63964
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Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western GondwanaRubinstein, Claudia VivianaPetus, ElodieNiemeyer, HansCHILEDEVONIAN/CARBONIFEROUS BOUNDARYMIOSPORESPHYTOPLANKTONWESTERN GONDWANAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Middle Member of the Zorritas Formation in the Antofagasta region of northern Chile, yielded terrestrial and marine palynomorph assemblages which span the Devonian/Carboniferous boundary. The assemblages show a clear predominance of terrestrial palynomorphs with 70 miospore species, 18 marine phytoplankton species, two non-marine algae and one chitinozoan species, all coming from 15 productive levels. Palynomorphs are poorly preserved and most of them are reworked. Three palynological associations are recognized based on miospores. These are assigned to the Tournaisian–Visean, Tournaisian and probable latest Famennian. Age assignments are discussed in the frame of the spore zonal schemes established for Euramerica and western Gondwana. The stratigraphical distribution of spores allows the identification of the probable position of the Devonian/Carboniferous boundary within the Zorritas Formation. This system boundary is proposed for the first time in Palaeozoic sedimentary rocks of northern Chile. The presence of Gondwanan typical miospore species indicates affinities with this palaeocontinent even though the Tournaisian and Tournaisian–Visean miospore associations support the cosmopolitanism already suggested for the early Carboniferous flora. The significant number of reworked palynomorphs together with the sedimentological analysis of the studied sections, suggest that these deposits were severely impacted by the climatic change and major sea level fluctuations. Similar conditions were recorded in coeval western Gondwana basins.Fil: Rubinstein, Claudia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Petus, Elodie. Université de Liège; BélgicaFil: Niemeyer, Hans. Universidad Católica del Norte; ChileElsevier Science2017-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63964Rubinstein, Claudia Viviana; Petus, Elodie; Niemeyer, Hans; Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western Gondwana; Elsevier Science; Geoscience Frontiers; 8; 3; 5-2017; 493-5061674-9871CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.gsf.2016.04.005info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1674987116300317info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:47:23Zoai:ri.conicet.gov.ar:11336/63964instacron: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 09:47:24.184CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western Gondwana |
title |
Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western Gondwana |
spellingShingle |
Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western Gondwana Rubinstein, Claudia Viviana CHILE DEVONIAN/CARBONIFEROUS BOUNDARY MIOSPORES PHYTOPLANKTON WESTERN GONDWANA |
title_short |
Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western Gondwana |
title_full |
Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western Gondwana |
title_fullStr |
Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western Gondwana |
title_full_unstemmed |
Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western Gondwana |
title_sort |
Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western Gondwana |
dc.creator.none.fl_str_mv |
Rubinstein, Claudia Viviana Petus, Elodie Niemeyer, Hans |
author |
Rubinstein, Claudia Viviana |
author_facet |
Rubinstein, Claudia Viviana Petus, Elodie Niemeyer, Hans |
author_role |
author |
author2 |
Petus, Elodie Niemeyer, Hans |
author2_role |
author author |
dc.subject.none.fl_str_mv |
CHILE DEVONIAN/CARBONIFEROUS BOUNDARY MIOSPORES PHYTOPLANKTON WESTERN GONDWANA |
topic |
CHILE DEVONIAN/CARBONIFEROUS BOUNDARY MIOSPORES PHYTOPLANKTON WESTERN GONDWANA |
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 Middle Member of the Zorritas Formation in the Antofagasta region of northern Chile, yielded terrestrial and marine palynomorph assemblages which span the Devonian/Carboniferous boundary. The assemblages show a clear predominance of terrestrial palynomorphs with 70 miospore species, 18 marine phytoplankton species, two non-marine algae and one chitinozoan species, all coming from 15 productive levels. Palynomorphs are poorly preserved and most of them are reworked. Three palynological associations are recognized based on miospores. These are assigned to the Tournaisian–Visean, Tournaisian and probable latest Famennian. Age assignments are discussed in the frame of the spore zonal schemes established for Euramerica and western Gondwana. The stratigraphical distribution of spores allows the identification of the probable position of the Devonian/Carboniferous boundary within the Zorritas Formation. This system boundary is proposed for the first time in Palaeozoic sedimentary rocks of northern Chile. The presence of Gondwanan typical miospore species indicates affinities with this palaeocontinent even though the Tournaisian and Tournaisian–Visean miospore associations support the cosmopolitanism already suggested for the early Carboniferous flora. The significant number of reworked palynomorphs together with the sedimentological analysis of the studied sections, suggest that these deposits were severely impacted by the climatic change and major sea level fluctuations. Similar conditions were recorded in coeval western Gondwana basins. Fil: Rubinstein, Claudia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina Fil: Petus, Elodie. Université de Liège; Bélgica Fil: Niemeyer, Hans. Universidad Católica del Norte; Chile |
description |
The Middle Member of the Zorritas Formation in the Antofagasta region of northern Chile, yielded terrestrial and marine palynomorph assemblages which span the Devonian/Carboniferous boundary. The assemblages show a clear predominance of terrestrial palynomorphs with 70 miospore species, 18 marine phytoplankton species, two non-marine algae and one chitinozoan species, all coming from 15 productive levels. Palynomorphs are poorly preserved and most of them are reworked. Three palynological associations are recognized based on miospores. These are assigned to the Tournaisian–Visean, Tournaisian and probable latest Famennian. Age assignments are discussed in the frame of the spore zonal schemes established for Euramerica and western Gondwana. The stratigraphical distribution of spores allows the identification of the probable position of the Devonian/Carboniferous boundary within the Zorritas Formation. This system boundary is proposed for the first time in Palaeozoic sedimentary rocks of northern Chile. The presence of Gondwanan typical miospore species indicates affinities with this palaeocontinent even though the Tournaisian and Tournaisian–Visean miospore associations support the cosmopolitanism already suggested for the early Carboniferous flora. The significant number of reworked palynomorphs together with the sedimentological analysis of the studied sections, suggest that these deposits were severely impacted by the climatic change and major sea level fluctuations. Similar conditions were recorded in coeval western Gondwana basins. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-05 |
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/11336/63964 Rubinstein, Claudia Viviana; Petus, Elodie; Niemeyer, Hans; Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western Gondwana; Elsevier Science; Geoscience Frontiers; 8; 3; 5-2017; 493-506 1674-9871 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/63964 |
identifier_str_mv |
Rubinstein, Claudia Viviana; Petus, Elodie; Niemeyer, Hans; Palynostratigraphy of the Zorritas Formation, Antofagasta Region, Chile: Insights on the Devonian/Carboniferous boundary in western Gondwana; Elsevier Science; Geoscience Frontiers; 8; 3; 5-2017; 493-506 1674-9871 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.gsf.2016.04.005 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1674987116300317 |
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 |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1842268855912628224 |
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13.13397 |