Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1111/sed.12846 http://hdl.handle.net/11449/210131 |
Resumo: | The Aptian evaporitic transitional sequence (sag phase) of the Brazilian marginal basins records the first connection between the Central and South Atlantic oceans in the equatorial area. During this phase, lacustrine carbonate reservoirs and giant salt deposits developed in the southern basins of Santos and Campos, forming world-class petroleum reservoirs. The sag succession is also well-preserved in the interior rift basins of north-eastern Brazil, where upper Aptian strata are represented by a continuous section. This contribution presents an interpretation of the evolution of a third-order depositional sequence comprising lacustrine limestones, marine siliciclastic facies and evaporite deposits of the intracontinental Araripe Basin. The Lowstand Systems Tract is characterized by fluvial deposits filling accommodation generated during the syn-rift phase. The overlying deposits comprise marine facies with preservation of dinoflagellates and marine ichnotaxa, evidencing marine deposition in bayhead delta settings. The transgressive surface is represented by limestones, including the Konservat-Lagerstatte laminites, onlapping the basement rocks. Above, tide-dominated bay deposits with distinct subtidal, intertidal and supratidal portions are recorded. The Maximum Flooding Surface is a dark shale below foreshore to shoreface facies, marking the beginning of the Highstand Systems Tract, culminating with deposition of evaporites (gypsum and anhydrite). The stratigraphic architecture and palaeocurrents measured in different facies associations suggest that marine waters reached the basin from the south. The data unequivocally records late Aptian marine ingressions of an incipient South Atlantic Ocean over the interior basins of north-eastern Brazil, while lacustrine conditions were still prevailing in the Pre-Salt sag units of the Santos and Campos basins. |
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Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern BrazilAptianCretaceous Konservat–Lagerstätteepicontinental marine ingressionmixed carbonate–siliciclastic systemPre‐Salt analogueThe Aptian evaporitic transitional sequence (sag phase) of the Brazilian marginal basins records the first connection between the Central and South Atlantic oceans in the equatorial area. During this phase, lacustrine carbonate reservoirs and giant salt deposits developed in the southern basins of Santos and Campos, forming world-class petroleum reservoirs. The sag succession is also well-preserved in the interior rift basins of north-eastern Brazil, where upper Aptian strata are represented by a continuous section. This contribution presents an interpretation of the evolution of a third-order depositional sequence comprising lacustrine limestones, marine siliciclastic facies and evaporite deposits of the intracontinental Araripe Basin. The Lowstand Systems Tract is characterized by fluvial deposits filling accommodation generated during the syn-rift phase. The overlying deposits comprise marine facies with preservation of dinoflagellates and marine ichnotaxa, evidencing marine deposition in bayhead delta settings. The transgressive surface is represented by limestones, including the Konservat-Lagerstatte laminites, onlapping the basement rocks. Above, tide-dominated bay deposits with distinct subtidal, intertidal and supratidal portions are recorded. The Maximum Flooding Surface is a dark shale below foreshore to shoreface facies, marking the beginning of the Highstand Systems Tract, culminating with deposition of evaporites (gypsum and anhydrite). The stratigraphic architecture and palaeocurrents measured in different facies associations suggest that marine waters reached the basin from the south. The data unequivocally records late Aptian marine ingressions of an incipient South Atlantic Ocean over the interior basins of north-eastern Brazil, while lacustrine conditions were still prevailing in the Pre-Salt sag units of the Santos and Campos basins.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)PetrobrasUniv Fed Parana, Inst LAMIR, Dept Geol, Av Cel Francisco H Santos 100, BR-81531980 Curitiba, PR, BrazilUniv Fed Ouro Preto, Escola Minas, Dept Geol, BR-35400000 Ouro Preto, MG, BrazilUniv Estadual Paulista, Inst Geociencias & Ciencias Exatas, Dept Geol, Ave 24-A,Bela Vista 178, BR-13506900 Rio Claro, SP, BrazilUniv Estadual Paulista, Inst Biociencias, Distrito Rubiao Jr S-N 510, BR-18618970 Botucatu, SP, BrazilUniv Saskatchewan, Dept Geol Sci, Saskatoon, SK S7N 5E2, CanadaUniv Estadual Paulista, Inst Geociencias & Ciencias Exatas, Dept Geol, Ave 24-A,Bela Vista 178, BR-13506900 Rio Claro, SP, BrazilUniv Estadual Paulista, Inst Biociencias, Distrito Rubiao Jr S-N 510, BR-18618970 Botucatu, SP, BrazilFAPESP: 2016/13214-7CNPq: 401039/2014-5Petrobras: 2014/00519-9Wiley-BlackwellUniv Fed ParanaUniv Fed Ouro PretoUniversidade Estadual Paulista (Unesp)Univ SaskatchewanVarejao, Filipe G.Warren, Lucas V. [UNESP]Simoes, Marcello G. [UNESP]Buatois, Luis A.Mangano, M. GabrielaBahniuk Rumbelsperger, Anelize M.Assine, Mario L. [UNESP]2021-06-25T12:40:38Z2021-06-25T12:40:38Z2021-03-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article40http://dx.doi.org/10.1111/sed.12846Sedimentology. Hoboken: Wiley, 40 p., 2021.0037-0746http://hdl.handle.net/11449/21013110.1111/sed.12846WOS:000629240000001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSedimentologyinfo:eu-repo/semantics/openAccess2021-10-23T20:11:15Zoai:repositorio.unesp.br:11449/210131Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:26:36.708298Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil |
title |
Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil |
spellingShingle |
Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil Varejao, Filipe G. Aptian Cretaceous Konservat– Lagerstä tte epicontinental marine ingression mixed carbonate– siliciclastic system Pre‐ Salt analogue |
title_short |
Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil |
title_full |
Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil |
title_fullStr |
Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil |
title_full_unstemmed |
Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil |
title_sort |
Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil |
author |
Varejao, Filipe G. |
author_facet |
Varejao, Filipe G. Warren, Lucas V. [UNESP] Simoes, Marcello G. [UNESP] Buatois, Luis A. Mangano, M. Gabriela Bahniuk Rumbelsperger, Anelize M. Assine, Mario L. [UNESP] |
author_role |
author |
author2 |
Warren, Lucas V. [UNESP] Simoes, Marcello G. [UNESP] Buatois, Luis A. Mangano, M. Gabriela Bahniuk Rumbelsperger, Anelize M. Assine, Mario L. [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Univ Fed Parana Univ Fed Ouro Preto Universidade Estadual Paulista (Unesp) Univ Saskatchewan |
dc.contributor.author.fl_str_mv |
Varejao, Filipe G. Warren, Lucas V. [UNESP] Simoes, Marcello G. [UNESP] Buatois, Luis A. Mangano, M. Gabriela Bahniuk Rumbelsperger, Anelize M. Assine, Mario L. [UNESP] |
dc.subject.por.fl_str_mv |
Aptian Cretaceous Konservat– Lagerstä tte epicontinental marine ingression mixed carbonate– siliciclastic system Pre‐ Salt analogue |
topic |
Aptian Cretaceous Konservat– Lagerstä tte epicontinental marine ingression mixed carbonate– siliciclastic system Pre‐ Salt analogue |
description |
The Aptian evaporitic transitional sequence (sag phase) of the Brazilian marginal basins records the first connection between the Central and South Atlantic oceans in the equatorial area. During this phase, lacustrine carbonate reservoirs and giant salt deposits developed in the southern basins of Santos and Campos, forming world-class petroleum reservoirs. The sag succession is also well-preserved in the interior rift basins of north-eastern Brazil, where upper Aptian strata are represented by a continuous section. This contribution presents an interpretation of the evolution of a third-order depositional sequence comprising lacustrine limestones, marine siliciclastic facies and evaporite deposits of the intracontinental Araripe Basin. The Lowstand Systems Tract is characterized by fluvial deposits filling accommodation generated during the syn-rift phase. The overlying deposits comprise marine facies with preservation of dinoflagellates and marine ichnotaxa, evidencing marine deposition in bayhead delta settings. The transgressive surface is represented by limestones, including the Konservat-Lagerstatte laminites, onlapping the basement rocks. Above, tide-dominated bay deposits with distinct subtidal, intertidal and supratidal portions are recorded. The Maximum Flooding Surface is a dark shale below foreshore to shoreface facies, marking the beginning of the Highstand Systems Tract, culminating with deposition of evaporites (gypsum and anhydrite). The stratigraphic architecture and palaeocurrents measured in different facies associations suggest that marine waters reached the basin from the south. The data unequivocally records late Aptian marine ingressions of an incipient South Atlantic Ocean over the interior basins of north-eastern Brazil, while lacustrine conditions were still prevailing in the Pre-Salt sag units of the Santos and Campos basins. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T12:40:38Z 2021-06-25T12:40:38Z 2021-03-15 |
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 |
http://dx.doi.org/10.1111/sed.12846 Sedimentology. Hoboken: Wiley, 40 p., 2021. 0037-0746 http://hdl.handle.net/11449/210131 10.1111/sed.12846 WOS:000629240000001 |
url |
http://dx.doi.org/10.1111/sed.12846 http://hdl.handle.net/11449/210131 |
identifier_str_mv |
Sedimentology. Hoboken: Wiley, 40 p., 2021. 0037-0746 10.1111/sed.12846 WOS:000629240000001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Sedimentology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
40 |
dc.publisher.none.fl_str_mv |
Wiley-Blackwell |
publisher.none.fl_str_mv |
Wiley-Blackwell |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128812965167104 |