Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework

Detalhes bibliográficos
Autor(a) principal: SIMAS, Margarete Wagner
Data de Publicação: 2012
Outros Autores: GUERRA-SOMMER, Margot, CAZZULO-KLEPZIG, Miriam, MENEGAT, Rualdo, SANTOS, João Orestes Schneider, FERREIRA, José Alcides Fonseca, DEGANI-SCHMIDT, Isabela
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional de Geociências - RIGEO
Texto Completo: https://rigeo.cprm.gov.br/handle/doc/610
Resumo: The radiometric age of 291 1.2 Ma obtained through single-crystal zircon UePb ages (Sensitive High Resolution Ion MicroProbe e SHRIMP II) of tonsteins from the Leão-Butiá Coalfield, southern Paraná|Basin (Rio Grande do Sul state), associated with previous SHRIMP II radiometric data obtained from tonsteins from the western (Candiota Coalfield) and eastern (Faxinal and Leão-Butiá coalfields) borders of|the basin indicate that the mean age of the main peat-forming interval is 291.0 1.3 Ma. In a regional context, the mean age represents a consistent geochronological correlation for the uppermost and more important coal seams in southern Brazilian coalfields, but this assumption does not establish an ash fall|origin from a single volcanic event. According to the International Stratigraphic Chart, the interval is dated as middle Sakmarian. The coal palynofloras are included in the Protohaploxypinus goraiensis|Subzone within the palynostratigraphic framework for the Brazilian Paraná Basin. Formal relationships are also established with the GlossopteriseRhodeopteridium Zone within the phytostratigraphic chart for the Lower Permian of southern Brazilian Paraná Basin
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spelling Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic frameworkGEOLOGIAGEOCRONOLOGIABIOESTRATIGRAFIAERA RADIOMÉTRICASHRIMP U-PbGONDWANABRASILThe radiometric age of 291 1.2 Ma obtained through single-crystal zircon UePb ages (Sensitive High Resolution Ion MicroProbe e SHRIMP II) of tonsteins from the Leão-Butiá Coalfield, southern Paraná|Basin (Rio Grande do Sul state), associated with previous SHRIMP II radiometric data obtained from tonsteins from the western (Candiota Coalfield) and eastern (Faxinal and Leão-Butiá coalfields) borders of|the basin indicate that the mean age of the main peat-forming interval is 291.0 1.3 Ma. In a regional context, the mean age represents a consistent geochronological correlation for the uppermost and more important coal seams in southern Brazilian coalfields, but this assumption does not establish an ash fall|origin from a single volcanic event. According to the International Stratigraphic Chart, the interval is dated as middle Sakmarian. The coal palynofloras are included in the Protohaploxypinus goraiensis|Subzone within the palynostratigraphic framework for the Brazilian Paraná Basin. Formal relationships are also established with the GlossopteriseRhodeopteridium Zone within the phytostratigraphic chart for the Lower Permian of southern Brazilian Paraná BasinElsevier2013-12-19T16:32:47Z2013-12-19T16:32:47Z2012info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSIMAS, Margarete Wagner; GUERRA-SOMMER, Margot; CAZZULO-KLEPZIG, Miriam; MENEGAT, Rualdo; SANTOS, João Orestes Schneider; FERREIRA, José Alcides Fonseca; DEGANI-SCHMIDT, Isabela. Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework. Journal of South American Earth Sciences, Oxford, v.39, p.1-15, 2012.08959811https://rigeo.cprm.gov.br/handle/doc/610SIMAS, Margarete WagnerGUERRA-SOMMER, MargotCAZZULO-KLEPZIG, MiriamMENEGAT, RualdoSANTOS, João Orestes SchneiderFERREIRA, José Alcides FonsecaDEGANI-SCHMIDT, Isabelaengreponame:Repositório Institucional de Geociências - RIGEOinstname:Companhia de Pesquisa de Recursos Minerais (CPRM)instacron:CPRMinfo:eu-repo/semantics/openAccess2023-02-13T14:13:17Zoai:rigeo.sgb.gov.br:doc/610Repositório InstitucionalONGhttps://rigeo.sgb.gov.br/oai/requestrigeo@sgb.gov.bropendoar:43362025-02-24T10:35:06.037136Repositório Institucional de Geociências - RIGEO - Companhia de Pesquisa de Recursos Minerais (CPRM)false
dc.title.none.fl_str_mv Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework
title Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework
spellingShingle Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework
SIMAS, Margarete Wagner
GEOLOGIA
GEOCRONOLOGIA
BIOESTRATIGRAFIA
ERA RADIOMÉTRICA
SHRIMP U-Pb
GONDWANA
BRASIL
title_short Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework
title_full Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework
title_fullStr Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework
title_full_unstemmed Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework
title_sort Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework
author SIMAS, Margarete Wagner
author_facet SIMAS, Margarete Wagner
GUERRA-SOMMER, Margot
CAZZULO-KLEPZIG, Miriam
MENEGAT, Rualdo
SANTOS, João Orestes Schneider
FERREIRA, José Alcides Fonseca
DEGANI-SCHMIDT, Isabela
author_role author
author2 GUERRA-SOMMER, Margot
CAZZULO-KLEPZIG, Miriam
MENEGAT, Rualdo
SANTOS, João Orestes Schneider
FERREIRA, José Alcides Fonseca
DEGANI-SCHMIDT, Isabela
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv SIMAS, Margarete Wagner
GUERRA-SOMMER, Margot
CAZZULO-KLEPZIG, Miriam
MENEGAT, Rualdo
SANTOS, João Orestes Schneider
FERREIRA, José Alcides Fonseca
DEGANI-SCHMIDT, Isabela
dc.subject.por.fl_str_mv GEOLOGIA
GEOCRONOLOGIA
BIOESTRATIGRAFIA
ERA RADIOMÉTRICA
SHRIMP U-Pb
GONDWANA
BRASIL
topic GEOLOGIA
GEOCRONOLOGIA
BIOESTRATIGRAFIA
ERA RADIOMÉTRICA
SHRIMP U-Pb
GONDWANA
BRASIL
description The radiometric age of 291 1.2 Ma obtained through single-crystal zircon UePb ages (Sensitive High Resolution Ion MicroProbe e SHRIMP II) of tonsteins from the Leão-Butiá Coalfield, southern Paraná|Basin (Rio Grande do Sul state), associated with previous SHRIMP II radiometric data obtained from tonsteins from the western (Candiota Coalfield) and eastern (Faxinal and Leão-Butiá coalfields) borders of|the basin indicate that the mean age of the main peat-forming interval is 291.0 1.3 Ma. In a regional context, the mean age represents a consistent geochronological correlation for the uppermost and more important coal seams in southern Brazilian coalfields, but this assumption does not establish an ash fall|origin from a single volcanic event. According to the International Stratigraphic Chart, the interval is dated as middle Sakmarian. The coal palynofloras are included in the Protohaploxypinus goraiensis|Subzone within the palynostratigraphic framework for the Brazilian Paraná Basin. Formal relationships are also established with the GlossopteriseRhodeopteridium Zone within the phytostratigraphic chart for the Lower Permian of southern Brazilian Paraná Basin
publishDate 2012
dc.date.none.fl_str_mv 2012
2013-12-19T16:32:47Z
2013-12-19T16:32:47Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv SIMAS, Margarete Wagner; GUERRA-SOMMER, Margot; CAZZULO-KLEPZIG, Miriam; MENEGAT, Rualdo; SANTOS, João Orestes Schneider; FERREIRA, José Alcides Fonseca; DEGANI-SCHMIDT, Isabela. Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework. Journal of South American Earth Sciences, Oxford, v.39, p.1-15, 2012.
08959811
https://rigeo.cprm.gov.br/handle/doc/610
identifier_str_mv SIMAS, Margarete Wagner; GUERRA-SOMMER, Margot; CAZZULO-KLEPZIG, Miriam; MENEGAT, Rualdo; SANTOS, João Orestes Schneider; FERREIRA, José Alcides Fonseca; DEGANI-SCHMIDT, Isabela. Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework. Journal of South American Earth Sciences, Oxford, v.39, p.1-15, 2012.
08959811
url https://rigeo.cprm.gov.br/handle/doc/610
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Institucional de Geociências - RIGEO
instname:Companhia de Pesquisa de Recursos Minerais (CPRM)
instacron:CPRM
instname_str Companhia de Pesquisa de Recursos Minerais (CPRM)
instacron_str CPRM
institution CPRM
reponame_str Repositório Institucional de Geociências - RIGEO
collection Repositório Institucional de Geociências - RIGEO
repository.name.fl_str_mv Repositório Institucional de Geociências - RIGEO - Companhia de Pesquisa de Recursos Minerais (CPRM)
repository.mail.fl_str_mv rigeo@sgb.gov.br
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