Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-Brazil
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.cretres.2023.105508 http://hdl.handle.net/11449/248558 |
Resumo: | The Aptian–Albian Amargosa Bed, Tucano Basin, which was recently considered as a Konservat-Lagerstätten, is a relatively thin, siliciclastic-dominated succession of yellowish and grayish papyraceous shales. We analyzed the taphonomy of fishes, gastric ejecta, freshwater shrimps and conchostracans, euryaline ostracods, and plants. Fish biostratinomic signatures indicate point to changes in water alkalinity/salinity as their causa mortis, occasionally subject to weak currents. The preferential preservation of flexed shrimps and isolated pleons corroborates this interpretation. Conchostracans, recorded in distinct levels, indicate episodes of mass mortality, variable transport and temporal mixing, and at least one faunal change. During the fossilization, primary P and Ca from shrimps and fishes probably generated phosphates, which finally altered to Fe oxy-/hydroxides, yielding a mixed elemental composition, not expressed in other mineralogies than Fe oxy-/hydroxides. The original calcite of ostracod valves likely has been dissolved/replaced by a K-rich aluminosilicate, or by a precursor phase. Plants were preserved by Fe oxy-/hydroxides or by kerogenisation. Previous studies show that marine ingression of Tethyan waters into the central segment of the proto-South Atlantic gulf flooded the continental scale axial river system captured by the Tucano rift basin, affecting base level up to the Araripe Basin. Here it is interpreted that tributary river systems with relatively steeper stream gradients were less affected by marine transgression than the axial system, resulting in local freshwater riverine influx across the elongated epeiric sea developed over the interior rift basins of NE-Brazil, resulting in a mixed biota of distinct water salinities that alternate in the Amargosa Bed type-section. |
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Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-BrazilAmargosa BedAptianBiostratinomyFossil preservationMarizal FormationTucano BasinThe Aptian–Albian Amargosa Bed, Tucano Basin, which was recently considered as a Konservat-Lagerstätten, is a relatively thin, siliciclastic-dominated succession of yellowish and grayish papyraceous shales. We analyzed the taphonomy of fishes, gastric ejecta, freshwater shrimps and conchostracans, euryaline ostracods, and plants. Fish biostratinomic signatures indicate point to changes in water alkalinity/salinity as their causa mortis, occasionally subject to weak currents. The preferential preservation of flexed shrimps and isolated pleons corroborates this interpretation. Conchostracans, recorded in distinct levels, indicate episodes of mass mortality, variable transport and temporal mixing, and at least one faunal change. During the fossilization, primary P and Ca from shrimps and fishes probably generated phosphates, which finally altered to Fe oxy-/hydroxides, yielding a mixed elemental composition, not expressed in other mineralogies than Fe oxy-/hydroxides. The original calcite of ostracod valves likely has been dissolved/replaced by a K-rich aluminosilicate, or by a precursor phase. Plants were preserved by Fe oxy-/hydroxides or by kerogenisation. Previous studies show that marine ingression of Tethyan waters into the central segment of the proto-South Atlantic gulf flooded the continental scale axial river system captured by the Tucano rift basin, affecting base level up to the Araripe Basin. Here it is interpreted that tributary river systems with relatively steeper stream gradients were less affected by marine transgression than the axial system, resulting in local freshwater riverine influx across the elongated epeiric sea developed over the interior rift basins of NE-Brazil, resulting in a mixed biota of distinct water salinities that alternate in the Amargosa Bed type-section.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Laboratório Nacional de Luz SíncrotronUniversidade de São Paulo Instituto de Geociências, Rua Do Lago, 562, SPUniversidade Federal de São Carlos Programa de Pós-Graduação Em Ecologia e Recursos Naturais, Rodovia Washington Luís, Km 235, SPUniversidade Estadual de Campinas Faculdade de Tecnologia, Rua Paschoal Marmo, 1888, SPUniversidade de São Paulo Programa de Pós-Graduação Em Geoquímica e Geotectônica, Rua Do Lago, 562, SPUNESP – Instituto de Geociências e Ciências Exatas de Rio Claro Departamento de Geologia Aplicada, Av. 24A, 1515, SPUniversidade Federal de São Carlos Laboratório de Paleobiologia e Astrobiologia Rodovia João Leme dos Santos, Km 110, 18052-780, SPUNESP – Instituto de Biociências, Distrito de Rubião Júnior, SPUniversidade Regional Do Cariri, Museu de Paleontologia Plácido Cidade Nuvens, 326, CEUniversidade Federal de Pernambuco Departamento de Geologia Laboratório de Paleontologia, Av. Prof. Moraes Rego, 1235, PELaboratório Nacional de Luz Síncrotron Centro Nacional de Pesquisa Em Energia e Materiais, Rua Giuseppe Máximo Scolfaro, 10.000, SPLaboratório de Plasmas Tecnológicos Universidade Estadual Paulista, Av. 3 de Março, 511, SPUNESP – Instituto de Geociências e Ciências Exatas de Rio Claro Departamento de Geologia Aplicada, Av. 24A, 1515, SPUNESP – Instituto de Biociências, Distrito de Rubião Júnior, SPLaboratório de Plasmas Tecnológicos Universidade Estadual Paulista, Av. 3 de Março, 511, SPFAPESP: 2009/53363-8FAPESP: 2014/16739-8FAPESP: 2016/03091-5FAPESP: 2017/21584-1Laboratório Nacional de Luz Síncrotron: XRF-20170713Universidade de São Paulo (USP)Universidade Federal de São Carlos (UFSCar)Universidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (UNESP)Universidade Regional Do CaririUniversidade Federal de Pernambuco (UFPE)Centro Nacional de Pesquisa Em Energia e MateriaisVoltani, Cibele GaspareloOsés, Gabriel LadeiraFreitas, Bernardo TavaresPrado, Gustavo Marcondes Evangelista MartinsRohn, Rosemarie [UNESP]Pacheco, Mírian Liza Alves ForancelliAnelli, Luiz Eduardode Almeida, Renato PaesSimões, Marcello Guimarães [UNESP]Caldeira do Prado, Ludmila AlvesAraripe, Rilda Verônica Cardoso deGalante, DouglasRangel, Elidiane Cipriano [UNESP]2023-07-29T13:47:13Z2023-07-29T13:47:13Z2023-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.cretres.2023.105508Cretaceous Research, v. 147.1095-998X0195-6671http://hdl.handle.net/11449/24855810.1016/j.cretres.2023.1055082-s2.0-85150773344Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCretaceous Researchinfo:eu-repo/semantics/openAccess2023-07-29T13:47:14Zoai:repositorio.unesp.br:11449/248558Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:54:45.855014Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-Brazil |
title |
Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-Brazil |
spellingShingle |
Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-Brazil Voltani, Cibele Gasparelo Amargosa Bed Aptian Biostratinomy Fossil preservation Marizal Formation Tucano Basin |
title_short |
Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-Brazil |
title_full |
Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-Brazil |
title_fullStr |
Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-Brazil |
title_full_unstemmed |
Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-Brazil |
title_sort |
Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-Brazil |
author |
Voltani, Cibele Gasparelo |
author_facet |
Voltani, Cibele Gasparelo Osés, Gabriel Ladeira Freitas, Bernardo Tavares Prado, Gustavo Marcondes Evangelista Martins Rohn, Rosemarie [UNESP] Pacheco, Mírian Liza Alves Forancelli Anelli, Luiz Eduardo de Almeida, Renato Paes Simões, Marcello Guimarães [UNESP] Caldeira do Prado, Ludmila Alves Araripe, Rilda Verônica Cardoso de Galante, Douglas Rangel, Elidiane Cipriano [UNESP] |
author_role |
author |
author2 |
Osés, Gabriel Ladeira Freitas, Bernardo Tavares Prado, Gustavo Marcondes Evangelista Martins Rohn, Rosemarie [UNESP] Pacheco, Mírian Liza Alves Forancelli Anelli, Luiz Eduardo de Almeida, Renato Paes Simões, Marcello Guimarães [UNESP] Caldeira do Prado, Ludmila Alves Araripe, Rilda Verônica Cardoso de Galante, Douglas Rangel, Elidiane Cipriano [UNESP] |
author2_role |
author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Federal de São Carlos (UFSCar) Universidade Estadual de Campinas (UNICAMP) Universidade Estadual Paulista (UNESP) Universidade Regional Do Cariri Universidade Federal de Pernambuco (UFPE) Centro Nacional de Pesquisa Em Energia e Materiais |
dc.contributor.author.fl_str_mv |
Voltani, Cibele Gasparelo Osés, Gabriel Ladeira Freitas, Bernardo Tavares Prado, Gustavo Marcondes Evangelista Martins Rohn, Rosemarie [UNESP] Pacheco, Mírian Liza Alves Forancelli Anelli, Luiz Eduardo de Almeida, Renato Paes Simões, Marcello Guimarães [UNESP] Caldeira do Prado, Ludmila Alves Araripe, Rilda Verônica Cardoso de Galante, Douglas Rangel, Elidiane Cipriano [UNESP] |
dc.subject.por.fl_str_mv |
Amargosa Bed Aptian Biostratinomy Fossil preservation Marizal Formation Tucano Basin |
topic |
Amargosa Bed Aptian Biostratinomy Fossil preservation Marizal Formation Tucano Basin |
description |
The Aptian–Albian Amargosa Bed, Tucano Basin, which was recently considered as a Konservat-Lagerstätten, is a relatively thin, siliciclastic-dominated succession of yellowish and grayish papyraceous shales. We analyzed the taphonomy of fishes, gastric ejecta, freshwater shrimps and conchostracans, euryaline ostracods, and plants. Fish biostratinomic signatures indicate point to changes in water alkalinity/salinity as their causa mortis, occasionally subject to weak currents. The preferential preservation of flexed shrimps and isolated pleons corroborates this interpretation. Conchostracans, recorded in distinct levels, indicate episodes of mass mortality, variable transport and temporal mixing, and at least one faunal change. During the fossilization, primary P and Ca from shrimps and fishes probably generated phosphates, which finally altered to Fe oxy-/hydroxides, yielding a mixed elemental composition, not expressed in other mineralogies than Fe oxy-/hydroxides. The original calcite of ostracod valves likely has been dissolved/replaced by a K-rich aluminosilicate, or by a precursor phase. Plants were preserved by Fe oxy-/hydroxides or by kerogenisation. Previous studies show that marine ingression of Tethyan waters into the central segment of the proto-South Atlantic gulf flooded the continental scale axial river system captured by the Tucano rift basin, affecting base level up to the Araripe Basin. Here it is interpreted that tributary river systems with relatively steeper stream gradients were less affected by marine transgression than the axial system, resulting in local freshwater riverine influx across the elongated epeiric sea developed over the interior rift basins of NE-Brazil, resulting in a mixed biota of distinct water salinities that alternate in the Amargosa Bed type-section. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T13:47:13Z 2023-07-29T13:47:13Z 2023-07-01 |
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/10.1016/j.cretres.2023.105508 Cretaceous Research, v. 147. 1095-998X 0195-6671 http://hdl.handle.net/11449/248558 10.1016/j.cretres.2023.105508 2-s2.0-85150773344 |
url |
http://dx.doi.org/10.1016/j.cretres.2023.105508 http://hdl.handle.net/11449/248558 |
identifier_str_mv |
Cretaceous Research, v. 147. 1095-998X 0195-6671 10.1016/j.cretres.2023.105508 2-s2.0-85150773344 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Cretaceous Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus 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_ |
1808128997872107520 |