Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Petrobras Processo FAPESP: 2016/13214-7 CNPq: 401039/2014-5 Petrobras: 2014/00519-9 The Aptian evaporitic transitional sequence (sag phase) of the Brazilian marginal bas...
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2021
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Online Access: | http://hdl.handle.net/11449/210131 https://doi.org/10.1111/sed.12846 |
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ftunivespir:oai:repositorio.unesp.br:11449/210131 2023-07-02T03:33:44+02:00 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. Warren, Lucas V. Simoes, Marcello G. Buatois, Luis A. Mangano, M. Gabriela Bahniuk Rumbelsperger, Anelize M. Assine, Mario L. Universidade Estadual Paulista (UNESP) 2021-03-15 40 http://hdl.handle.net/11449/210131 https://doi.org/10.1111/sed.12846 eng eng Wiley-Blackwell Sedimentology http://dx.doi.org/10.1111/sed.12846 Sedimentology. Hoboken: Wiley, 40 p., 2021. 0037-0746 http://hdl.handle.net/11449/210131 doi:10.1111/sed.12846 WOS:000629240000001 Aptian Cretaceous Konservat– Lagerstä tte epicontinental marine ingression mixed carbonate– siliciclastic system Pre‐ Salt analogue info:eu-repo/semantics/article 2021 ftunivespir https://doi.org/10.1111/sed.12846 2023-06-12T17:28:04Z Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Petrobras Processo FAPESP: 2016/13214-7 CNPq: 401039/2014-5 Petrobras: 2014/00519-9 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 ... Article in Journal/Newspaper South Atlantic Ocean Universidade Estadual Paulista São Paulo: Repositório Institucional UNESP Sedimentology 68 5 2125 2164 |
institution |
Open Polar |
collection |
Universidade Estadual Paulista São Paulo: Repositório Institucional UNESP |
op_collection_id |
ftunivespir |
language |
English |
topic |
Aptian Cretaceous Konservat– Lagerstä tte epicontinental marine ingression mixed carbonate– siliciclastic system Pre‐ Salt analogue |
spellingShingle |
Aptian Cretaceous Konservat– Lagerstä tte epicontinental marine ingression mixed carbonate– siliciclastic system Pre‐ Salt analogue Varejao, Filipe G. Warren, Lucas V. Simoes, Marcello G. Buatois, Luis A. Mangano, M. Gabriela Bahniuk Rumbelsperger, Anelize M. Assine, Mario L. Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil |
topic_facet |
Aptian Cretaceous Konservat– Lagerstä tte epicontinental marine ingression mixed carbonate– siliciclastic system Pre‐ Salt analogue |
description |
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Petrobras Processo FAPESP: 2016/13214-7 CNPq: 401039/2014-5 Petrobras: 2014/00519-9 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 ... |
author2 |
Universidade Estadual Paulista (UNESP) |
format |
Article in Journal/Newspaper |
author |
Varejao, Filipe G. Warren, Lucas V. Simoes, Marcello G. Buatois, Luis A. Mangano, M. Gabriela Bahniuk Rumbelsperger, Anelize M. Assine, Mario L. |
author_facet |
Varejao, Filipe G. Warren, Lucas V. Simoes, Marcello G. Buatois, Luis A. Mangano, M. Gabriela Bahniuk Rumbelsperger, Anelize M. Assine, Mario L. |
author_sort |
Varejao, Filipe G. |
title |
Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil |
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 |
publisher |
Wiley-Blackwell |
publishDate |
2021 |
url |
http://hdl.handle.net/11449/210131 https://doi.org/10.1111/sed.12846 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
Sedimentology http://dx.doi.org/10.1111/sed.12846 Sedimentology. Hoboken: Wiley, 40 p., 2021. 0037-0746 http://hdl.handle.net/11449/210131 doi:10.1111/sed.12846 WOS:000629240000001 |
op_doi |
https://doi.org/10.1111/sed.12846 |
container_title |
Sedimentology |
container_volume |
68 |
container_issue |
5 |
container_start_page |
2125 |
op_container_end_page |
2164 |
_version_ |
1770273792493355008 |