The rise and fall of the giant stromatolites of the Lower Permian Irati Formation (Paraná Basin, Brazil): A multi-proxy based paleoenvironmental reconstruction
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.palaeo.2022.111246 http://hdl.handle.net/11449/247709 |
Resumo: | Giant stromatolites are meter-scale laminated carbonate biosedimentary deposits formed by the action of benthic microbiota under very specific conditions. Although occurrences of giant stromatolites are relatively common in Precambrian deposits, the Phanerozoic record is still sparse. Here, we carried out an integrated analysis of the Lower Permian Santa Rosa de Viterbo giant stromatolite field, developed in a mixed carbonate-siliciclastic depositional system within a restricted intracontinental basin (Irati Formation, Paraná Basin, Brazil). Using available and new descriptions of stromatolite morphology and associated facies, we applied a multi-proxy approach based upon sedimentological, paleontological, geochemical, and isotopic data to develop a detailed paleoenvironmental model for this particular occurrence. The NE-SW elongated giant stromatolites – of >3 m in height, > 7 m in length, and > 1 m wide – have variable external shape and internal morphology, indicating changing growth strategy due to variations in the hydrodynamic conditions, bathymetry, and terrigenous input. Increasing δ13C values towards the top of the succession are related to intense microbial activity, increased nutrient supply, and enhanced primary productivity, with the higher δ13C values matching the global Permian seawater signal. Y/Ho and La/La* ratios indicate a less restricted setting towards the top of the succession, which is consistent with the increasing water depth recorded by the stromatolite morphology. The combination of smooth lamination, exclusively coccoidal microbial community, and fossil content, point to deposition under high (possibly hyper) salinity conditions for most of the succession. Our data suggests that the existence of stressful conditions (i.e., strong currents and high salinity) protected the benthic microbial communities from predation and favored EPS production, generating the ideal conditions for the growth of giant stromatolites, a very uncommon situation in the Phanerozoic. |
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The rise and fall of the giant stromatolites of the Lower Permian Irati Formation (Paraná Basin, Brazil): A multi-proxy based paleoenvironmental reconstructionCarbonate geochemistryGiant microbialitesIrati-Whitehill SeaRestricted basinStressful environmentStromatolite growthGiant stromatolites are meter-scale laminated carbonate biosedimentary deposits formed by the action of benthic microbiota under very specific conditions. Although occurrences of giant stromatolites are relatively common in Precambrian deposits, the Phanerozoic record is still sparse. Here, we carried out an integrated analysis of the Lower Permian Santa Rosa de Viterbo giant stromatolite field, developed in a mixed carbonate-siliciclastic depositional system within a restricted intracontinental basin (Irati Formation, Paraná Basin, Brazil). Using available and new descriptions of stromatolite morphology and associated facies, we applied a multi-proxy approach based upon sedimentological, paleontological, geochemical, and isotopic data to develop a detailed paleoenvironmental model for this particular occurrence. The NE-SW elongated giant stromatolites – of >3 m in height, > 7 m in length, and > 1 m wide – have variable external shape and internal morphology, indicating changing growth strategy due to variations in the hydrodynamic conditions, bathymetry, and terrigenous input. Increasing δ13C values towards the top of the succession are related to intense microbial activity, increased nutrient supply, and enhanced primary productivity, with the higher δ13C values matching the global Permian seawater signal. Y/Ho and La/La* ratios indicate a less restricted setting towards the top of the succession, which is consistent with the increasing water depth recorded by the stromatolite morphology. The combination of smooth lamination, exclusively coccoidal microbial community, and fossil content, point to deposition under high (possibly hyper) salinity conditions for most of the succession. Our data suggests that the existence of stressful conditions (i.e., strong currents and high salinity) protected the benthic microbial communities from predation and favored EPS production, generating the ideal conditions for the growth of giant stromatolites, a very uncommon situation in the Phanerozoic.Financiadora de Estudos e ProjetosFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Department of Geology São Paulo State University (UNESP), Bela Vista, SPInstitute of Geosciences São Paulo University (USP), Butantã, SPDepartment of Geology School of Mines Federal University of Ouro Preto (UFOP), Morro do Cruzeiro, MGManoel Teixeira da Costa Research Center Institute of Geosciences Department of Geology Federal University of Minas Gerais (UFMG), Pampulha, MGCentro de Investigaciones Geológicas UNLP-CONICET, calle 1, n. 644LAMIR Institute Department of Geology Federal University of Paraná (UFPR), Jardim das Américas, PRDepartment of Zoology São Paulo State University (UNESP), Rubião Júnior District, SPDepartment of Geology São Paulo State University (UNESP), Bela Vista, SPDepartment of Zoology São Paulo State University (UNESP), Rubião Júnior District, SPFAPESP: 2019/00515-7Universidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Federal University of Ouro Preto (UFOP)Universidade Federal de Minas Gerais (UFMG)UNLP-CONICETUniversidade Federal do Paraná (UFPR)Antunes, G. C. [UNESP]Warren, L. V. [UNESP]Okubo, J. [UNESP]Fairchild, T. R.Varejão, F. G.Uhlein, G. J.Inglez, L. [UNESP]Poiré, D. G.Bahniuk, A. M.Simões, M. G. [UNESP]2023-07-29T13:23:44Z2023-07-29T13:23:44Z2022-11-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.palaeo.2022.111246Palaeogeography, Palaeoclimatology, Palaeoecology, v. 606.0031-0182http://hdl.handle.net/11449/24770910.1016/j.palaeo.2022.1112462-s2.0-85139287952Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPalaeogeography, Palaeoclimatology, Palaeoecologyinfo:eu-repo/semantics/openAccess2023-07-29T13:23:44Zoai:repositorio.unesp.br:11449/247709Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:40:19.378716Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The rise and fall of the giant stromatolites of the Lower Permian Irati Formation (Paraná Basin, Brazil): A multi-proxy based paleoenvironmental reconstruction |
title |
The rise and fall of the giant stromatolites of the Lower Permian Irati Formation (Paraná Basin, Brazil): A multi-proxy based paleoenvironmental reconstruction |
spellingShingle |
The rise and fall of the giant stromatolites of the Lower Permian Irati Formation (Paraná Basin, Brazil): A multi-proxy based paleoenvironmental reconstruction Antunes, G. C. [UNESP] Carbonate geochemistry Giant microbialites Irati-Whitehill Sea Restricted basin Stressful environment Stromatolite growth |
title_short |
The rise and fall of the giant stromatolites of the Lower Permian Irati Formation (Paraná Basin, Brazil): A multi-proxy based paleoenvironmental reconstruction |
title_full |
The rise and fall of the giant stromatolites of the Lower Permian Irati Formation (Paraná Basin, Brazil): A multi-proxy based paleoenvironmental reconstruction |
title_fullStr |
The rise and fall of the giant stromatolites of the Lower Permian Irati Formation (Paraná Basin, Brazil): A multi-proxy based paleoenvironmental reconstruction |
title_full_unstemmed |
The rise and fall of the giant stromatolites of the Lower Permian Irati Formation (Paraná Basin, Brazil): A multi-proxy based paleoenvironmental reconstruction |
title_sort |
The rise and fall of the giant stromatolites of the Lower Permian Irati Formation (Paraná Basin, Brazil): A multi-proxy based paleoenvironmental reconstruction |
author |
Antunes, G. C. [UNESP] |
author_facet |
Antunes, G. C. [UNESP] Warren, L. V. [UNESP] Okubo, J. [UNESP] Fairchild, T. R. Varejão, F. G. Uhlein, G. J. Inglez, L. [UNESP] Poiré, D. G. Bahniuk, A. M. Simões, M. G. [UNESP] |
author_role |
author |
author2 |
Warren, L. V. [UNESP] Okubo, J. [UNESP] Fairchild, T. R. Varejão, F. G. Uhlein, G. J. Inglez, L. [UNESP] Poiré, D. G. Bahniuk, A. M. Simões, M. G. [UNESP] |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade de São Paulo (USP) Federal University of Ouro Preto (UFOP) Universidade Federal de Minas Gerais (UFMG) UNLP-CONICET Universidade Federal do Paraná (UFPR) |
dc.contributor.author.fl_str_mv |
Antunes, G. C. [UNESP] Warren, L. V. [UNESP] Okubo, J. [UNESP] Fairchild, T. R. Varejão, F. G. Uhlein, G. J. Inglez, L. [UNESP] Poiré, D. G. Bahniuk, A. M. Simões, M. G. [UNESP] |
dc.subject.por.fl_str_mv |
Carbonate geochemistry Giant microbialites Irati-Whitehill Sea Restricted basin Stressful environment Stromatolite growth |
topic |
Carbonate geochemistry Giant microbialites Irati-Whitehill Sea Restricted basin Stressful environment Stromatolite growth |
description |
Giant stromatolites are meter-scale laminated carbonate biosedimentary deposits formed by the action of benthic microbiota under very specific conditions. Although occurrences of giant stromatolites are relatively common in Precambrian deposits, the Phanerozoic record is still sparse. Here, we carried out an integrated analysis of the Lower Permian Santa Rosa de Viterbo giant stromatolite field, developed in a mixed carbonate-siliciclastic depositional system within a restricted intracontinental basin (Irati Formation, Paraná Basin, Brazil). Using available and new descriptions of stromatolite morphology and associated facies, we applied a multi-proxy approach based upon sedimentological, paleontological, geochemical, and isotopic data to develop a detailed paleoenvironmental model for this particular occurrence. The NE-SW elongated giant stromatolites – of >3 m in height, > 7 m in length, and > 1 m wide – have variable external shape and internal morphology, indicating changing growth strategy due to variations in the hydrodynamic conditions, bathymetry, and terrigenous input. Increasing δ13C values towards the top of the succession are related to intense microbial activity, increased nutrient supply, and enhanced primary productivity, with the higher δ13C values matching the global Permian seawater signal. Y/Ho and La/La* ratios indicate a less restricted setting towards the top of the succession, which is consistent with the increasing water depth recorded by the stromatolite morphology. The combination of smooth lamination, exclusively coccoidal microbial community, and fossil content, point to deposition under high (possibly hyper) salinity conditions for most of the succession. Our data suggests that the existence of stressful conditions (i.e., strong currents and high salinity) protected the benthic microbial communities from predation and favored EPS production, generating the ideal conditions for the growth of giant stromatolites, a very uncommon situation in the Phanerozoic. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11-15 2023-07-29T13:23:44Z 2023-07-29T13:23:44Z |
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.palaeo.2022.111246 Palaeogeography, Palaeoclimatology, Palaeoecology, v. 606. 0031-0182 http://hdl.handle.net/11449/247709 10.1016/j.palaeo.2022.111246 2-s2.0-85139287952 |
url |
http://dx.doi.org/10.1016/j.palaeo.2022.111246 http://hdl.handle.net/11449/247709 |
identifier_str_mv |
Palaeogeography, Palaeoclimatology, Palaeoecology, v. 606. 0031-0182 10.1016/j.palaeo.2022.111246 2-s2.0-85139287952 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Palaeogeography, Palaeoclimatology, Palaeoecology |
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_ |
1808129541775818752 |