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 SIMAS, Margarete WagnerGUERRA-SOMMER, MargotCAZZULO-KLEPZIG, MiriamMENEGAT, RualdoSANTOS, João Orestes SchneiderFERREIRA, José Alcides FonsecaDEGANI-SCHMIDT, Isabela2013-12-19T16:32:47Z2013-12-19T16:32:47Z2012SIMAS, 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/610The 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 BasinElsevierGEOLOGIAGEOCRONOLOGIABIOESTRATIGRAFIAERA RADIOMÉTRICASHRIMP U-PbGONDWANABRASILGeochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic frameworkinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleOxfordengreponame:Repositório Institucional de Geociências - RIGEOinstname:Companhia de Pesquisa de Recursos Minerais (CPRM)instacron:CPRMinfo:eu-repo/semantics/openAccessTEXTArt_Geocrhonological_simas.pdf.txtArt_Geocrhonological_simas.pdf.txtExtracted texttext/plain51138http://rigeo.cprm.gov.br/jspui/bitstream/doc/610/2/Art_Geocrhonological_simas.pdf.txt5424ff9f976f7728084bc16e9c72e151MD52THUMBNAILArt_Geocrhonological_simas.pdf.jpgArt_Geocrhonological_simas.pdf.jpgGenerated Thumbnailimage/jpeg1716http://rigeo.cprm.gov.br/jspui/bitstream/doc/610/3/Art_Geocrhonological_simas.pdf.jpg49fad6b2ab7cbf46ccd14a130885c3e2MD53ORIGINALArt_Geocrhonological_simas.pdfArt_Geocrhonological_simas.pdfproducao cientificaapplication/pdf2893964http://rigeo.cprm.gov.br/jspui/bitstream/doc/610/1/Art_Geocrhonological_simas.pdfd07ae0da8a6c672eb0094891373282b3MD51doc/6102023-02-13 11:13:17.817oai:rigeo.sgb.gov.br:doc/610Repositório InstitucionalONGhttp://rigeo.cprm.gov.br/oai/requestrigeo@sgb.gov.bropendoar:2023-02-13T14:13:17Repositório 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.issued.fl_str_mv 2012
dc.date.accessioned.fl_str_mv 2013-12-19T16:32:47Z
dc.date.available.fl_str_mv 2013-12-19T16:32:47Z
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status_str publishedVersion
dc.identifier.citation.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.
dc.identifier.uri.fl_str_mv https://rigeo.cprm.gov.br/handle/doc/610
dc.identifier.issn.none.fl_str_mv 08959811
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
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