Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates

Autores
Beeler, Scott R.; Gomez, Fernando Javier; Bradley, Alexander
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Microbialites and abiogenic carbonates of the closed-basin hypersaline lake Laguna Negra (Catamarca Province, Argentina) are highly enriched in both 13C and 18O. These carbonates precipitate in the zone of recharge where lake water mixes with groundwater. We examined the processes controlling the isotopic evolution of input waters in order to better interpret the isotopic compositions of the carbonates. Large enrichments of 13C in dissolved inorganic carbon and 18O in water occur as input groundwater chemically evolves. These enrichments can be explained through the abiotic processes of water-equilibration, evaporation, degassing, and carbonate precipitation. The 13C and 18O contents of lake carbonates are consistent with equilibrium precipitation from lake water indicating that the currently ongoing processes can explain the isotopic patterns observed in carbonates. Isotopic compositions of these microbialites are largely unrelated to the biological processes controlling microbialite formation – a pattern that may be generalizable to other settings. However, the isotopic compositions of these microbialites record information about their depositional environment.
Fil: Beeler, Scott R.. Washington University in St. Louis; Estados Unidos
Fil: Gomez, Fernando Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Bradley, Alexander. Washington University in St. Louis; Estados Unidos
Materia
BIOGENICITY
DEPOSITIONAL ENVIRONMENT
ISOTOPIC ENRICHMENT
LAGUNA NEGRA
MICROBIALITE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/140930
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonatesBeeler, Scott R.Gomez, Fernando JavierBradley, AlexanderBIOGENICITYDEPOSITIONAL ENVIRONMENTISOTOPIC ENRICHMENTLAGUNA NEGRAMICROBIALITEhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Microbialites and abiogenic carbonates of the closed-basin hypersaline lake Laguna Negra (Catamarca Province, Argentina) are highly enriched in both 13C and 18O. These carbonates precipitate in the zone of recharge where lake water mixes with groundwater. We examined the processes controlling the isotopic evolution of input waters in order to better interpret the isotopic compositions of the carbonates. Large enrichments of 13C in dissolved inorganic carbon and 18O in water occur as input groundwater chemically evolves. These enrichments can be explained through the abiotic processes of water-equilibration, evaporation, degassing, and carbonate precipitation. The 13C and 18O contents of lake carbonates are consistent with equilibrium precipitation from lake water indicating that the currently ongoing processes can explain the isotopic patterns observed in carbonates. Isotopic compositions of these microbialites are largely unrelated to the biological processes controlling microbialite formation – a pattern that may be generalizable to other settings. However, the isotopic compositions of these microbialites record information about their depositional environment.Fil: Beeler, Scott R.. Washington University in St. Louis; Estados UnidosFil: Gomez, Fernando Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Bradley, Alexander. Washington University in St. Louis; Estados UnidosPergamon-Elsevier Science Ltd2020-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/140930Beeler, Scott R.; Gomez, Fernando Javier; Bradley, Alexander; Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates; Pergamon-Elsevier Science Ltd; Geochimica et Cosmochimica Acta; 269; 1-2020; 136-1490016-7037CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.gca.2019.10.022info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0016703719306660info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:11:58Zoai:ri.conicet.gov.ar:11336/140930instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:11:59.208CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates
title Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates
spellingShingle Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates
Beeler, Scott R.
BIOGENICITY
DEPOSITIONAL ENVIRONMENT
ISOTOPIC ENRICHMENT
LAGUNA NEGRA
MICROBIALITE
title_short Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates
title_full Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates
title_fullStr Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates
title_full_unstemmed Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates
title_sort Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates
dc.creator.none.fl_str_mv Beeler, Scott R.
Gomez, Fernando Javier
Bradley, Alexander
author Beeler, Scott R.
author_facet Beeler, Scott R.
Gomez, Fernando Javier
Bradley, Alexander
author_role author
author2 Gomez, Fernando Javier
Bradley, Alexander
author2_role author
author
dc.subject.none.fl_str_mv BIOGENICITY
DEPOSITIONAL ENVIRONMENT
ISOTOPIC ENRICHMENT
LAGUNA NEGRA
MICROBIALITE
topic BIOGENICITY
DEPOSITIONAL ENVIRONMENT
ISOTOPIC ENRICHMENT
LAGUNA NEGRA
MICROBIALITE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Microbialites and abiogenic carbonates of the closed-basin hypersaline lake Laguna Negra (Catamarca Province, Argentina) are highly enriched in both 13C and 18O. These carbonates precipitate in the zone of recharge where lake water mixes with groundwater. We examined the processes controlling the isotopic evolution of input waters in order to better interpret the isotopic compositions of the carbonates. Large enrichments of 13C in dissolved inorganic carbon and 18O in water occur as input groundwater chemically evolves. These enrichments can be explained through the abiotic processes of water-equilibration, evaporation, degassing, and carbonate precipitation. The 13C and 18O contents of lake carbonates are consistent with equilibrium precipitation from lake water indicating that the currently ongoing processes can explain the isotopic patterns observed in carbonates. Isotopic compositions of these microbialites are largely unrelated to the biological processes controlling microbialite formation – a pattern that may be generalizable to other settings. However, the isotopic compositions of these microbialites record information about their depositional environment.
Fil: Beeler, Scott R.. Washington University in St. Louis; Estados Unidos
Fil: Gomez, Fernando Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Bradley, Alexander. Washington University in St. Louis; Estados Unidos
description Microbialites and abiogenic carbonates of the closed-basin hypersaline lake Laguna Negra (Catamarca Province, Argentina) are highly enriched in both 13C and 18O. These carbonates precipitate in the zone of recharge where lake water mixes with groundwater. We examined the processes controlling the isotopic evolution of input waters in order to better interpret the isotopic compositions of the carbonates. Large enrichments of 13C in dissolved inorganic carbon and 18O in water occur as input groundwater chemically evolves. These enrichments can be explained through the abiotic processes of water-equilibration, evaporation, degassing, and carbonate precipitation. The 13C and 18O contents of lake carbonates are consistent with equilibrium precipitation from lake water indicating that the currently ongoing processes can explain the isotopic patterns observed in carbonates. Isotopic compositions of these microbialites are largely unrelated to the biological processes controlling microbialite formation – a pattern that may be generalizable to other settings. However, the isotopic compositions of these microbialites record information about their depositional environment.
publishDate 2020
dc.date.none.fl_str_mv 2020-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/140930
Beeler, Scott R.; Gomez, Fernando Javier; Bradley, Alexander; Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates; Pergamon-Elsevier Science Ltd; Geochimica et Cosmochimica Acta; 269; 1-2020; 136-149
0016-7037
CONICET Digital
CONICET
url http://hdl.handle.net/11336/140930
identifier_str_mv Beeler, Scott R.; Gomez, Fernando Javier; Bradley, Alexander; Controls of extreme isotopic enrichment in modern microbialites and associated abiogenic carbonates; Pergamon-Elsevier Science Ltd; Geochimica et Cosmochimica Acta; 269; 1-2020; 136-149
0016-7037
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gca.2019.10.022
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0016703719306660
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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