Quantitative approach by miospores of the Devonian-Carboniferous transition

Autores
Streel, Maurice; Di Pasquo Lartigue, Maria
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The abundance of selected species at geological scale has been noted to be a useful criterium to correlate sedimentary sequences. In this work, we take as an example two groups of species, the lepidophyta and pusillites, which are noted to characterize the Devonian-Carboniferous transition. From formerly obtained results in rare Famennian coal-beds, it is known that the parent plants of the two groups of spores were living near swamps in deltaic marshes. Spores (miospores), often with diameters around 50 µm, have the advantage, compared to other microfossils, to be produced by each individual terrestrial plant in thousands of specimens, which are transported into the sediments by wind and fluvial or marine currents. In this context, the group lepidophyta, the most widespread and stratigraphically narrowest, was chosen to be considered in priority. We selected the geological sections studied in the northern Rhenish Massif (Sauerland, Germany) as reference because they are the best known for animal macrofossils, such as goniatites, in particular those species that had been used to fix the DCB before the use of conodonts (and spores), which prevail to-day. In the reference sections in Sauerland, the extinction of the group lepidophyta is observed in two steps. Initially it is most often dominant, with more than 50 % of the total of all spores counted. The first extinction step is characterized by a strong decline of the group lepidophyta, which persist to be present in all samples, but rarely exceeds 5 % of the total of all spores counted. The second extinction step led to the complete absence of the group. These two extinction steps have been noted in several localities in Europe (Ireland, England, Poland, Portugal) but also in Greenland in a sedimentary sequence in which the extinction of the group lepidophyta is linked to warming and humidity increase and the collapse of the final Devonian glacial episode. We have searched this interval in North and South America, but most of palynological analysis have no quantitative approach, and often the extinction level of the DCB is hampered by the erosion of Upper Devonian deposits or unfavorable lithofacies for palynology. Additionally, the presence of reworked Devonian palynomorphs is frequent and, especially, those from the Upper Devonian were redeposited into Mississippian deposits in South America.
Fil: Streel, Maurice. Universite de Liege. Faculty Of Applied Sciences.; Bélgica
Fil: Di Pasquo Lartigue, Maria. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
Materia
QUANTITATIVE PALYNOLOGY
DEVONIAN
CARBONIFEROUS
REVISION
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:11336/214070

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spelling Quantitative approach by miospores of the Devonian-Carboniferous transitionStreel, MauriceDi Pasquo Lartigue, MariaQUANTITATIVE PALYNOLOGYDEVONIANCARBONIFEROUSREVISIONhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The abundance of selected species at geological scale has been noted to be a useful criterium to correlate sedimentary sequences. In this work, we take as an example two groups of species, the lepidophyta and pusillites, which are noted to characterize the Devonian-Carboniferous transition. From formerly obtained results in rare Famennian coal-beds, it is known that the parent plants of the two groups of spores were living near swamps in deltaic marshes. Spores (miospores), often with diameters around 50 µm, have the advantage, compared to other microfossils, to be produced by each individual terrestrial plant in thousands of specimens, which are transported into the sediments by wind and fluvial or marine currents. In this context, the group lepidophyta, the most widespread and stratigraphically narrowest, was chosen to be considered in priority. We selected the geological sections studied in the northern Rhenish Massif (Sauerland, Germany) as reference because they are the best known for animal macrofossils, such as goniatites, in particular those species that had been used to fix the DCB before the use of conodonts (and spores), which prevail to-day. In the reference sections in Sauerland, the extinction of the group lepidophyta is observed in two steps. Initially it is most often dominant, with more than 50 % of the total of all spores counted. The first extinction step is characterized by a strong decline of the group lepidophyta, which persist to be present in all samples, but rarely exceeds 5 % of the total of all spores counted. The second extinction step led to the complete absence of the group. These two extinction steps have been noted in several localities in Europe (Ireland, England, Poland, Portugal) but also in Greenland in a sedimentary sequence in which the extinction of the group lepidophyta is linked to warming and humidity increase and the collapse of the final Devonian glacial episode. We have searched this interval in North and South America, but most of palynological analysis have no quantitative approach, and often the extinction level of the DCB is hampered by the erosion of Upper Devonian deposits or unfavorable lithofacies for palynology. Additionally, the presence of reworked Devonian palynomorphs is frequent and, especially, those from the Upper Devonian were redeposited into Mississippian deposits in South America.Fil: Streel, Maurice. Universite de Liege. Faculty Of Applied Sciences.; BélgicaFil: Di Pasquo Lartigue, Maria. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; ArgentinaIUGS Subcommission on Stratigraphy. International Subcommission on Devonian Stratigraphy2022-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/214070Streel, Maurice; Di Pasquo Lartigue, Maria; Quantitative approach by miospores of the Devonian-Carboniferous transition; IUGS Subcommission on Stratigraphy. International Subcommission on Devonian Stratigraphy; Newsletter of the Subcommssion of Devonian Stratigraphy; 37; 11-2022; 23-452074-7268CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://devonian.stratigraphy.org/archivesinfo:eu-repo/semantics/altIdentifier/url/http://devonian.stratigraphy.org/archive/SDS-Newsletter-37-2022.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:10:37Zoai:ri.conicet.gov.ar:11336/214070instacron: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 10:10:37.823CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Quantitative approach by miospores of the Devonian-Carboniferous transition
title Quantitative approach by miospores of the Devonian-Carboniferous transition
spellingShingle Quantitative approach by miospores of the Devonian-Carboniferous transition
Streel, Maurice
QUANTITATIVE PALYNOLOGY
DEVONIAN
CARBONIFEROUS
REVISION
title_short Quantitative approach by miospores of the Devonian-Carboniferous transition
title_full Quantitative approach by miospores of the Devonian-Carboniferous transition
title_fullStr Quantitative approach by miospores of the Devonian-Carboniferous transition
title_full_unstemmed Quantitative approach by miospores of the Devonian-Carboniferous transition
title_sort Quantitative approach by miospores of the Devonian-Carboniferous transition
dc.creator.none.fl_str_mv Streel, Maurice
Di Pasquo Lartigue, Maria
author Streel, Maurice
author_facet Streel, Maurice
Di Pasquo Lartigue, Maria
author_role author
author2 Di Pasquo Lartigue, Maria
author2_role author
dc.subject.none.fl_str_mv QUANTITATIVE PALYNOLOGY
DEVONIAN
CARBONIFEROUS
REVISION
topic QUANTITATIVE PALYNOLOGY
DEVONIAN
CARBONIFEROUS
REVISION
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 abundance of selected species at geological scale has been noted to be a useful criterium to correlate sedimentary sequences. In this work, we take as an example two groups of species, the lepidophyta and pusillites, which are noted to characterize the Devonian-Carboniferous transition. From formerly obtained results in rare Famennian coal-beds, it is known that the parent plants of the two groups of spores were living near swamps in deltaic marshes. Spores (miospores), often with diameters around 50 µm, have the advantage, compared to other microfossils, to be produced by each individual terrestrial plant in thousands of specimens, which are transported into the sediments by wind and fluvial or marine currents. In this context, the group lepidophyta, the most widespread and stratigraphically narrowest, was chosen to be considered in priority. We selected the geological sections studied in the northern Rhenish Massif (Sauerland, Germany) as reference because they are the best known for animal macrofossils, such as goniatites, in particular those species that had been used to fix the DCB before the use of conodonts (and spores), which prevail to-day. In the reference sections in Sauerland, the extinction of the group lepidophyta is observed in two steps. Initially it is most often dominant, with more than 50 % of the total of all spores counted. The first extinction step is characterized by a strong decline of the group lepidophyta, which persist to be present in all samples, but rarely exceeds 5 % of the total of all spores counted. The second extinction step led to the complete absence of the group. These two extinction steps have been noted in several localities in Europe (Ireland, England, Poland, Portugal) but also in Greenland in a sedimentary sequence in which the extinction of the group lepidophyta is linked to warming and humidity increase and the collapse of the final Devonian glacial episode. We have searched this interval in North and South America, but most of palynological analysis have no quantitative approach, and often the extinction level of the DCB is hampered by the erosion of Upper Devonian deposits or unfavorable lithofacies for palynology. Additionally, the presence of reworked Devonian palynomorphs is frequent and, especially, those from the Upper Devonian were redeposited into Mississippian deposits in South America.
Fil: Streel, Maurice. Universite de Liege. Faculty Of Applied Sciences.; Bélgica
Fil: Di Pasquo Lartigue, Maria. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
description The abundance of selected species at geological scale has been noted to be a useful criterium to correlate sedimentary sequences. In this work, we take as an example two groups of species, the lepidophyta and pusillites, which are noted to characterize the Devonian-Carboniferous transition. From formerly obtained results in rare Famennian coal-beds, it is known that the parent plants of the two groups of spores were living near swamps in deltaic marshes. Spores (miospores), often with diameters around 50 µm, have the advantage, compared to other microfossils, to be produced by each individual terrestrial plant in thousands of specimens, which are transported into the sediments by wind and fluvial or marine currents. In this context, the group lepidophyta, the most widespread and stratigraphically narrowest, was chosen to be considered in priority. We selected the geological sections studied in the northern Rhenish Massif (Sauerland, Germany) as reference because they are the best known for animal macrofossils, such as goniatites, in particular those species that had been used to fix the DCB before the use of conodonts (and spores), which prevail to-day. In the reference sections in Sauerland, the extinction of the group lepidophyta is observed in two steps. Initially it is most often dominant, with more than 50 % of the total of all spores counted. The first extinction step is characterized by a strong decline of the group lepidophyta, which persist to be present in all samples, but rarely exceeds 5 % of the total of all spores counted. The second extinction step led to the complete absence of the group. These two extinction steps have been noted in several localities in Europe (Ireland, England, Poland, Portugal) but also in Greenland in a sedimentary sequence in which the extinction of the group lepidophyta is linked to warming and humidity increase and the collapse of the final Devonian glacial episode. We have searched this interval in North and South America, but most of palynological analysis have no quantitative approach, and often the extinction level of the DCB is hampered by the erosion of Upper Devonian deposits or unfavorable lithofacies for palynology. Additionally, the presence of reworked Devonian palynomorphs is frequent and, especially, those from the Upper Devonian were redeposited into Mississippian deposits in South America.
publishDate 2022
dc.date.none.fl_str_mv 2022-11
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/11336/214070
Streel, Maurice; Di Pasquo Lartigue, Maria; Quantitative approach by miospores of the Devonian-Carboniferous transition; IUGS Subcommission on Stratigraphy. International Subcommission on Devonian Stratigraphy; Newsletter of the Subcommssion of Devonian Stratigraphy; 37; 11-2022; 23-45
2074-7268
CONICET Digital
CONICET
url http://hdl.handle.net/11336/214070
identifier_str_mv Streel, Maurice; Di Pasquo Lartigue, Maria; Quantitative approach by miospores of the Devonian-Carboniferous transition; IUGS Subcommission on Stratigraphy. International Subcommission on Devonian Stratigraphy; Newsletter of the Subcommssion of Devonian Stratigraphy; 37; 11-2022; 23-45
2074-7268
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://devonian.stratigraphy.org/archives
info:eu-repo/semantics/altIdentifier/url/http://devonian.stratigraphy.org/archive/SDS-Newsletter-37-2022.pdf
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
application/pdf
dc.publisher.none.fl_str_mv IUGS Subcommission on Stratigraphy. International Subcommission on Devonian Stratigraphy
publisher.none.fl_str_mv IUGS Subcommission on Stratigraphy. International Subcommission on Devonian Stratigraphy
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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reponame_str CONICET Digital (CONICET)
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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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