Fossil diversity and taphonomy of glacial and post-glacial lower paleozoic strata, NE Paraná Basin, Brazil
Autor(a) principal: | |
---|---|
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/10.1016/j.jsames.2021.103470 http://hdl.handle.net/11449/222002 |
Resumo: | Unlike other South American basins, the boundary between Ordovician and Silurian in the Paraná Basin, Brazil, has yet to be studied in detail. This article reports the occurrence and taphonomic analysis of a fauna composed of the organophosphatic brachiopods Kosoidea australis and ?Palaeoglossa sp., the mollusks ?Paleoneilo sp. and ?Cuneamya sp., besides rynchonelliform brachiopods and the ostracods Harpabollia sp. and Satiellina paranaensis. This assemblage indicates a Hirnantian age for the top of the Iapó and the base of the Vila Maria formations, northeastern border of the Paraná Basin. Taphonomic signatures and facies associations point to a pro-glacial environment, at the transitional shoreface, represented by the last sedimentary facies of the Iapó Formation. The overlying transgressive strata represent the beginning of the Vila Maria Formation, in which fossils and lithofacies indicate predominant post-glacial conditions in an offshore setting. Two taphofacies were delineated. One features size- and type-selected fossils, deposited in rain-out facies originated from the melting glacier. The second, with autochthonous to parautochthonous fossils, represents a post-glacial offshore setting. The low faunal diversity points to marine connections between North and South African basins, and with South American basins. |
id |
UNSP_00da753caaef1c4fd58192329602dce9 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/222002 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Fossil diversity and taphonomy of glacial and post-glacial lower paleozoic strata, NE Paraná Basin, BrazilBivalve mollusksHirnantianOrganophosphatic brachiopodsOstracodsTaphofaciesUnlike other South American basins, the boundary between Ordovician and Silurian in the Paraná Basin, Brazil, has yet to be studied in detail. This article reports the occurrence and taphonomic analysis of a fauna composed of the organophosphatic brachiopods Kosoidea australis and ?Palaeoglossa sp., the mollusks ?Paleoneilo sp. and ?Cuneamya sp., besides rynchonelliform brachiopods and the ostracods Harpabollia sp. and Satiellina paranaensis. This assemblage indicates a Hirnantian age for the top of the Iapó and the base of the Vila Maria formations, northeastern border of the Paraná Basin. Taphonomic signatures and facies associations point to a pro-glacial environment, at the transitional shoreface, represented by the last sedimentary facies of the Iapó Formation. The overlying transgressive strata represent the beginning of the Vila Maria Formation, in which fossils and lithofacies indicate predominant post-glacial conditions in an offshore setting. Two taphofacies were delineated. One features size- and type-selected fossils, deposited in rain-out facies originated from the melting glacier. The second, with autochthonous to parautochthonous fossils, represents a post-glacial offshore setting. The low faunal diversity points to marine connections between North and South African basins, and with South American basins.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Geosciences Institute UNICAMP, CampinasGeosciences Institute University of BrasiliaCenter for Technological Innovation-CEDES Setor Bancário NorteDepartment of Geology São Paulo State University UnespDepartment of Geology São Paulo State University UnespFAPESP: 2017/10956-5CNPq: 459776/2014-2Universidade Estadual de Campinas (UNICAMP)University of BrasiliaCenter for Technological Innovation-CEDES Setor Bancário NorteUniversidade Estadual Paulista (UNESP)Zabini, CarolinaDenezine, MatheusRodrigues, Lívia C. da S.Gonçalves, Lívio R. de O.Adôrno, Rodrigo R.Carmo, Dermeval doAssine, Mário L. [UNESP]2022-04-28T19:41:53Z2022-04-28T19:41:53Z2021-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jsames.2021.103470Journal of South American Earth Sciences, v. 111.0895-9811http://hdl.handle.net/11449/22200210.1016/j.jsames.2021.1034702-s2.0-85110769514Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of South American Earth Sciencesinfo:eu-repo/semantics/openAccess2022-04-28T19:41:54Zoai:repositorio.unesp.br:11449/222002Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:05:00.560278Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Fossil diversity and taphonomy of glacial and post-glacial lower paleozoic strata, NE Paraná Basin, Brazil |
title |
Fossil diversity and taphonomy of glacial and post-glacial lower paleozoic strata, NE Paraná Basin, Brazil |
spellingShingle |
Fossil diversity and taphonomy of glacial and post-glacial lower paleozoic strata, NE Paraná Basin, Brazil Zabini, Carolina Bivalve mollusks Hirnantian Organophosphatic brachiopods Ostracods Taphofacies |
title_short |
Fossil diversity and taphonomy of glacial and post-glacial lower paleozoic strata, NE Paraná Basin, Brazil |
title_full |
Fossil diversity and taphonomy of glacial and post-glacial lower paleozoic strata, NE Paraná Basin, Brazil |
title_fullStr |
Fossil diversity and taphonomy of glacial and post-glacial lower paleozoic strata, NE Paraná Basin, Brazil |
title_full_unstemmed |
Fossil diversity and taphonomy of glacial and post-glacial lower paleozoic strata, NE Paraná Basin, Brazil |
title_sort |
Fossil diversity and taphonomy of glacial and post-glacial lower paleozoic strata, NE Paraná Basin, Brazil |
author |
Zabini, Carolina |
author_facet |
Zabini, Carolina Denezine, Matheus Rodrigues, Lívia C. da S. Gonçalves, Lívio R. de O. Adôrno, Rodrigo R. Carmo, Dermeval do Assine, Mário L. [UNESP] |
author_role |
author |
author2 |
Denezine, Matheus Rodrigues, Lívia C. da S. Gonçalves, Lívio R. de O. Adôrno, Rodrigo R. Carmo, Dermeval do Assine, Mário L. [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual de Campinas (UNICAMP) University of Brasilia Center for Technological Innovation-CEDES Setor Bancário Norte Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Zabini, Carolina Denezine, Matheus Rodrigues, Lívia C. da S. Gonçalves, Lívio R. de O. Adôrno, Rodrigo R. Carmo, Dermeval do Assine, Mário L. [UNESP] |
dc.subject.por.fl_str_mv |
Bivalve mollusks Hirnantian Organophosphatic brachiopods Ostracods Taphofacies |
topic |
Bivalve mollusks Hirnantian Organophosphatic brachiopods Ostracods Taphofacies |
description |
Unlike other South American basins, the boundary between Ordovician and Silurian in the Paraná Basin, Brazil, has yet to be studied in detail. This article reports the occurrence and taphonomic analysis of a fauna composed of the organophosphatic brachiopods Kosoidea australis and ?Palaeoglossa sp., the mollusks ?Paleoneilo sp. and ?Cuneamya sp., besides rynchonelliform brachiopods and the ostracods Harpabollia sp. and Satiellina paranaensis. This assemblage indicates a Hirnantian age for the top of the Iapó and the base of the Vila Maria formations, northeastern border of the Paraná Basin. Taphonomic signatures and facies associations point to a pro-glacial environment, at the transitional shoreface, represented by the last sedimentary facies of the Iapó Formation. The overlying transgressive strata represent the beginning of the Vila Maria Formation, in which fossils and lithofacies indicate predominant post-glacial conditions in an offshore setting. Two taphofacies were delineated. One features size- and type-selected fossils, deposited in rain-out facies originated from the melting glacier. The second, with autochthonous to parautochthonous fossils, represents a post-glacial offshore setting. The low faunal diversity points to marine connections between North and South African basins, and with South American basins. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-11-01 2022-04-28T19:41:53Z 2022-04-28T19:41:53Z |
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.jsames.2021.103470 Journal of South American Earth Sciences, v. 111. 0895-9811 http://hdl.handle.net/11449/222002 10.1016/j.jsames.2021.103470 2-s2.0-85110769514 |
url |
http://dx.doi.org/10.1016/j.jsames.2021.103470 http://hdl.handle.net/11449/222002 |
identifier_str_mv |
Journal of South American Earth Sciences, v. 111. 0895-9811 10.1016/j.jsames.2021.103470 2-s2.0-85110769514 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of South American Earth Sciences |
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_ |
1808128606008770560 |