TRACE FOSSILS FROM THE UPPER CRETACEOUS CAPACETE FORMATION, SANFRANCISCANA BASIN, CENTRAL BRAZIL

Detalhes bibliográficos
Autor(a) principal: Sedorko, Daniel
Data de Publicação: 2020
Outros Autores: Alessandretti, Luciano, Warren, Lucas Verissimo [UNESP], Verde, Mariano, Rangel, Caio Cesar, Ramos, Kimberly Silva, Netto, Renata Guimaraes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.14241/asgp.2020.15
http://hdl.handle.net/11449/209965
Resumo: The Upper Cretaceous Capacete Formation, from the intracratonic Sanfranciscana Basin, central Brazil, consists of epiclastic sediments with a significant aeolian contribution. This unit has been traditionally interpreted as deposited by alluvial fans distally grading to braided rivers in an arid- to semiarid climate within the central part of southwestern Gondwana. Locally, some expositions with wide lateral extension show architectural elements indicative of deposition in meandering rivers, such as floodplain fines (FF) interbedded with crevasse splay (CR), lateral-accretion macroforms (LA), and channels (CH). Bioturbation within the meandering fluvial deposits is commonly associated with the floodplain element, mainly occurring in fine-grained sandstone and mudstone. The lateral-accretion elements and channel deposits are barren of trace fossils. Sandstone with climbing ripples (Sr) from the element CR show low bioturbation of meniscate trace fossils assigned to Taenidium, Beaconites, and Scoyenia ichnogenera. Simple vertical and horizontal burrows identified as Skolithos and Palaeophycus occur associated with Taenidium and Camborygma in sandstone facies (Sr, St and Sh), as well as rhizoliths, representing the Scoyenia ichnofacies. The predominance of trace fossils related to the FF and CR architectural elements attests to the colonization mostly by insects in episodic and vegetated flood plains of the meandering river system from the Capacete Formation. Thus, despite the primarily arid to semiarid conditions interpreted for the inner parts of the newly formed South American continent during the Upper Cretaceous, our new data support deposition under humid conditions in some intervals of the Capacete Formation from the Sanfranciscana Basin.
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spelling TRACE FOSSILS FROM THE UPPER CRETACEOUS CAPACETE FORMATION, SANFRANCISCANA BASIN, CENTRAL BRAZILMeandering fluvial systeminsectscontinental trace fossilsScoyenia ichnofaciesThe Upper Cretaceous Capacete Formation, from the intracratonic Sanfranciscana Basin, central Brazil, consists of epiclastic sediments with a significant aeolian contribution. This unit has been traditionally interpreted as deposited by alluvial fans distally grading to braided rivers in an arid- to semiarid climate within the central part of southwestern Gondwana. Locally, some expositions with wide lateral extension show architectural elements indicative of deposition in meandering rivers, such as floodplain fines (FF) interbedded with crevasse splay (CR), lateral-accretion macroforms (LA), and channels (CH). Bioturbation within the meandering fluvial deposits is commonly associated with the floodplain element, mainly occurring in fine-grained sandstone and mudstone. The lateral-accretion elements and channel deposits are barren of trace fossils. Sandstone with climbing ripples (Sr) from the element CR show low bioturbation of meniscate trace fossils assigned to Taenidium, Beaconites, and Scoyenia ichnogenera. Simple vertical and horizontal burrows identified as Skolithos and Palaeophycus occur associated with Taenidium and Camborygma in sandstone facies (Sr, St and Sh), as well as rhizoliths, representing the Scoyenia ichnofacies. The predominance of trace fossils related to the FF and CR architectural elements attests to the colonization mostly by insects in episodic and vegetated flood plains of the meandering river system from the Capacete Formation. Thus, despite the primarily arid to semiarid conditions interpreted for the inner parts of the newly formed South American continent during the Upper Cretaceous, our new data support deposition under humid conditions in some intervals of the Capacete Formation from the Sanfranciscana Basin.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Fed Uberlandia, Inst Geog, LMG 746 Km 1,Campus Monte Carmelo, BR-38500000 Uberlandia, MG, BrazilSao Paulo State Univ, Inst Geosci & Exact Sci, Dept Geol, Ave 24-A,Bela Vista 178, BR-13506900 Rio Claro, SP, BrazilUniv Republica, Sci Fac, Paleontol Dept, Igua 4225, Montevideo 11400, UruguayUnisinos Univ, Geol Grad Program, Sao Leopoldo, RS, BrazilSao Paulo State Univ, Inst Geosci & Exact Sci, Dept Geol, Ave 24-A,Bela Vista 178, BR-13506900 Rio Claro, SP, BrazilCNPq: 159548/2018-7Polish Geological SocUniversidade Federal de Uberlândia (UFU)Universidade Estadual Paulista (Unesp)Univ RepublicaUnisinos UnivSedorko, DanielAlessandretti, LucianoWarren, Lucas Verissimo [UNESP]Verde, MarianoRangel, Caio CesarRamos, Kimberly SilvaNetto, Renata Guimaraes2021-06-25T12:35:09Z2021-06-25T12:35:09Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article247-260http://dx.doi.org/10.14241/asgp.2020.15Annales Societatis Geologorum Poloniae. Krakow: Polish Geological Soc, v. 90, n. 3, p. 247-260, 2020.0208-9068http://hdl.handle.net/11449/20996510.14241/asgp.2020.15WOS:000611815000004Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAnnales Societatis Geologorum Poloniaeinfo:eu-repo/semantics/openAccess2021-10-23T19:50:12Zoai:repositorio.unesp.br:11449/209965Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:31:09.652889Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv TRACE FOSSILS FROM THE UPPER CRETACEOUS CAPACETE FORMATION, SANFRANCISCANA BASIN, CENTRAL BRAZIL
title TRACE FOSSILS FROM THE UPPER CRETACEOUS CAPACETE FORMATION, SANFRANCISCANA BASIN, CENTRAL BRAZIL
spellingShingle TRACE FOSSILS FROM THE UPPER CRETACEOUS CAPACETE FORMATION, SANFRANCISCANA BASIN, CENTRAL BRAZIL
Sedorko, Daniel
Meandering fluvial system
insects
continental trace fossils
Scoyenia ichnofacies
title_short TRACE FOSSILS FROM THE UPPER CRETACEOUS CAPACETE FORMATION, SANFRANCISCANA BASIN, CENTRAL BRAZIL
title_full TRACE FOSSILS FROM THE UPPER CRETACEOUS CAPACETE FORMATION, SANFRANCISCANA BASIN, CENTRAL BRAZIL
title_fullStr TRACE FOSSILS FROM THE UPPER CRETACEOUS CAPACETE FORMATION, SANFRANCISCANA BASIN, CENTRAL BRAZIL
title_full_unstemmed TRACE FOSSILS FROM THE UPPER CRETACEOUS CAPACETE FORMATION, SANFRANCISCANA BASIN, CENTRAL BRAZIL
title_sort TRACE FOSSILS FROM THE UPPER CRETACEOUS CAPACETE FORMATION, SANFRANCISCANA BASIN, CENTRAL BRAZIL
author Sedorko, Daniel
author_facet Sedorko, Daniel
Alessandretti, Luciano
Warren, Lucas Verissimo [UNESP]
Verde, Mariano
Rangel, Caio Cesar
Ramos, Kimberly Silva
Netto, Renata Guimaraes
author_role author
author2 Alessandretti, Luciano
Warren, Lucas Verissimo [UNESP]
Verde, Mariano
Rangel, Caio Cesar
Ramos, Kimberly Silva
Netto, Renata Guimaraes
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal de Uberlândia (UFU)
Universidade Estadual Paulista (Unesp)
Univ Republica
Unisinos Univ
dc.contributor.author.fl_str_mv Sedorko, Daniel
Alessandretti, Luciano
Warren, Lucas Verissimo [UNESP]
Verde, Mariano
Rangel, Caio Cesar
Ramos, Kimberly Silva
Netto, Renata Guimaraes
dc.subject.por.fl_str_mv Meandering fluvial system
insects
continental trace fossils
Scoyenia ichnofacies
topic Meandering fluvial system
insects
continental trace fossils
Scoyenia ichnofacies
description The Upper Cretaceous Capacete Formation, from the intracratonic Sanfranciscana Basin, central Brazil, consists of epiclastic sediments with a significant aeolian contribution. This unit has been traditionally interpreted as deposited by alluvial fans distally grading to braided rivers in an arid- to semiarid climate within the central part of southwestern Gondwana. Locally, some expositions with wide lateral extension show architectural elements indicative of deposition in meandering rivers, such as floodplain fines (FF) interbedded with crevasse splay (CR), lateral-accretion macroforms (LA), and channels (CH). Bioturbation within the meandering fluvial deposits is commonly associated with the floodplain element, mainly occurring in fine-grained sandstone and mudstone. The lateral-accretion elements and channel deposits are barren of trace fossils. Sandstone with climbing ripples (Sr) from the element CR show low bioturbation of meniscate trace fossils assigned to Taenidium, Beaconites, and Scoyenia ichnogenera. Simple vertical and horizontal burrows identified as Skolithos and Palaeophycus occur associated with Taenidium and Camborygma in sandstone facies (Sr, St and Sh), as well as rhizoliths, representing the Scoyenia ichnofacies. The predominance of trace fossils related to the FF and CR architectural elements attests to the colonization mostly by insects in episodic and vegetated flood plains of the meandering river system from the Capacete Formation. Thus, despite the primarily arid to semiarid conditions interpreted for the inner parts of the newly formed South American continent during the Upper Cretaceous, our new data support deposition under humid conditions in some intervals of the Capacete Formation from the Sanfranciscana Basin.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
2021-06-25T12:35:09Z
2021-06-25T12:35:09Z
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/10.14241/asgp.2020.15
Annales Societatis Geologorum Poloniae. Krakow: Polish Geological Soc, v. 90, n. 3, p. 247-260, 2020.
0208-9068
http://hdl.handle.net/11449/209965
10.14241/asgp.2020.15
WOS:000611815000004
url http://dx.doi.org/10.14241/asgp.2020.15
http://hdl.handle.net/11449/209965
identifier_str_mv Annales Societatis Geologorum Poloniae. Krakow: Polish Geological Soc, v. 90, n. 3, p. 247-260, 2020.
0208-9068
10.14241/asgp.2020.15
WOS:000611815000004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Annales Societatis Geologorum Poloniae
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 247-260
dc.publisher.none.fl_str_mv Polish Geological Soc
publisher.none.fl_str_mv Polish Geological Soc
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
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