Archean (3.33 Ga) microbe-sediment systems were diverse and flourished in a hydrothermal context

Autores
Westall, Frances; Campbell, Kathleen A.; Bréhéret, Jean Gabriel; Foucher, Frédéric; Gautret, Pascale; Hubert, Axelle; Sorieul, S.; Grassineau, Nathalie; Guido, Diego Martín
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Interacting, diverse microbe-sediment systems exist in natural environments today but have not yet been recognized in the oldest records of life on Earth (older than 3.3 Ga) because of lack of distinctive biomarker molecules and patchy preservation of microbial paleocommunities. In an in-situ outcrop- to microbial-scale study, we have differentiated probable phototrophic, chemolithotrophic, and chemo-organotrophic fossil microbial signatures in a nearshore volcanogenic sedimentary setting in 3.33 Ga rocks of the Josefsdal Chert, Barberton greenstone belt, South Africa, while demonstrating the importance of contemporaneous hydrothermal activity. Hydrothermal fluids, as a nutrient source, strongly controlled the development and distribution of the microbial communities and, as a silicifying agent, contributed to their rapid fossilization. We thus show that intricate microbe-sediment systems are deep-rooted in time and that at least some early life may indeed have been thermophilic.
Instituto de Recursos Minerales
Materia
Geología
Geology
Archean
Hydrothermal circulation
Outcrop
Earth science
Phototroph
Fossilization
Greenstone belt
Early life
Sedimentary rock
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/127091
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/127091
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Archean (3.33 Ga) microbe-sediment systems were diverse and flourished in a hydrothermal contextWestall, FrancesCampbell, Kathleen A.Bréhéret, Jean GabrielFoucher, FrédéricGautret, PascaleHubert, AxelleSorieul, S.Grassineau, NathalieGuido, Diego MartínGeologíaGeologyArcheanHydrothermal circulationOutcropEarth sciencePhototrophFossilizationGreenstone beltEarly lifeSedimentary rockInteracting, diverse microbe-sediment systems exist in natural environments today but have not yet been recognized in the oldest records of life on Earth (older than 3.3 Ga) because of lack of distinctive biomarker molecules and patchy preservation of microbial paleocommunities. In an in-situ outcrop- to microbial-scale study, we have differentiated probable phototrophic, chemolithotrophic, and chemo-organotrophic fossil microbial signatures in a nearshore volcanogenic sedimentary setting in 3.33 Ga rocks of the Josefsdal Chert, Barberton greenstone belt, South Africa, while demonstrating the importance of contemporaneous hydrothermal activity. Hydrothermal fluids, as a nutrient source, strongly controlled the development and distribution of the microbial communities and, as a silicifying agent, contributed to their rapid fossilization. We thus show that intricate microbe-sediment systems are deep-rooted in time and that at least some early life may indeed have been thermophilic.Instituto de Recursos Minerales2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf615-618http://sedici.unlp.edu.ar/handle/10915/127091enginfo:eu-repo/semantics/altIdentifier/issn/0091-7613info:eu-repo/semantics/altIdentifier/issn/1943-2682info:eu-repo/semantics/altIdentifier/doi/10.1130/g36646.1info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:30:42Zoai:sedici.unlp.edu.ar:10915/127091Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:30:43.213SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Archean (3.33 Ga) microbe-sediment systems were diverse and flourished in a hydrothermal context
title Archean (3.33 Ga) microbe-sediment systems were diverse and flourished in a hydrothermal context
spellingShingle Archean (3.33 Ga) microbe-sediment systems were diverse and flourished in a hydrothermal context
Westall, Frances
Geología
Geology
Archean
Hydrothermal circulation
Outcrop
Earth science
Phototroph
Fossilization
Greenstone belt
Early life
Sedimentary rock
title_short Archean (3.33 Ga) microbe-sediment systems were diverse and flourished in a hydrothermal context
title_full Archean (3.33 Ga) microbe-sediment systems were diverse and flourished in a hydrothermal context
title_fullStr Archean (3.33 Ga) microbe-sediment systems were diverse and flourished in a hydrothermal context
title_full_unstemmed Archean (3.33 Ga) microbe-sediment systems were diverse and flourished in a hydrothermal context
title_sort Archean (3.33 Ga) microbe-sediment systems were diverse and flourished in a hydrothermal context
dc.creator.none.fl_str_mv Westall, Frances
Campbell, Kathleen A.
Bréhéret, Jean Gabriel
Foucher, Frédéric
Gautret, Pascale
Hubert, Axelle
Sorieul, S.
Grassineau, Nathalie
Guido, Diego Martín
author Westall, Frances
author_facet Westall, Frances
Campbell, Kathleen A.
Bréhéret, Jean Gabriel
Foucher, Frédéric
Gautret, Pascale
Hubert, Axelle
Sorieul, S.
Grassineau, Nathalie
Guido, Diego Martín
author_role author
author2 Campbell, Kathleen A.
Bréhéret, Jean Gabriel
Foucher, Frédéric
Gautret, Pascale
Hubert, Axelle
Sorieul, S.
Grassineau, Nathalie
Guido, Diego Martín
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Geología
Geology
Archean
Hydrothermal circulation
Outcrop
Earth science
Phototroph
Fossilization
Greenstone belt
Early life
Sedimentary rock
topic Geología
Geology
Archean
Hydrothermal circulation
Outcrop
Earth science
Phototroph
Fossilization
Greenstone belt
Early life
Sedimentary rock
dc.description.none.fl_txt_mv Interacting, diverse microbe-sediment systems exist in natural environments today but have not yet been recognized in the oldest records of life on Earth (older than 3.3 Ga) because of lack of distinctive biomarker molecules and patchy preservation of microbial paleocommunities. In an in-situ outcrop- to microbial-scale study, we have differentiated probable phototrophic, chemolithotrophic, and chemo-organotrophic fossil microbial signatures in a nearshore volcanogenic sedimentary setting in 3.33 Ga rocks of the Josefsdal Chert, Barberton greenstone belt, South Africa, while demonstrating the importance of contemporaneous hydrothermal activity. Hydrothermal fluids, as a nutrient source, strongly controlled the development and distribution of the microbial communities and, as a silicifying agent, contributed to their rapid fossilization. We thus show that intricate microbe-sediment systems are deep-rooted in time and that at least some early life may indeed have been thermophilic.
Instituto de Recursos Minerales
description Interacting, diverse microbe-sediment systems exist in natural environments today but have not yet been recognized in the oldest records of life on Earth (older than 3.3 Ga) because of lack of distinctive biomarker molecules and patchy preservation of microbial paleocommunities. In an in-situ outcrop- to microbial-scale study, we have differentiated probable phototrophic, chemolithotrophic, and chemo-organotrophic fossil microbial signatures in a nearshore volcanogenic sedimentary setting in 3.33 Ga rocks of the Josefsdal Chert, Barberton greenstone belt, South Africa, while demonstrating the importance of contemporaneous hydrothermal activity. Hydrothermal fluids, as a nutrient source, strongly controlled the development and distribution of the microbial communities and, as a silicifying agent, contributed to their rapid fossilization. We thus show that intricate microbe-sediment systems are deep-rooted in time and that at least some early life may indeed have been thermophilic.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/127091
url http://sedici.unlp.edu.ar/handle/10915/127091
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0091-7613
info:eu-repo/semantics/altIdentifier/issn/1943-2682
info:eu-repo/semantics/altIdentifier/doi/10.1130/g36646.1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
615-618
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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