Dissolved major and trace geochemical dynamics in Antarctic lacustrine systems

Autores
Lecomte, Karina Leticia; Vignoni, Paula A.; Echegoyen, Cecilia Vanina; Santolaya, María Pía; Kopalová, Katerina; Kohler, Tyler J.; Roman, Matej; Coria, Silvia Herminda; Lirio, Juan Manuel
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Clearwater Mesa (James Ross Island, northeast Antarctic Peninsula) provides a unique opportunity to study solute dynamics and geochemical weathering in the pristine lacustrine systems of a high latitude environment. In order to determine major controls on the solute composition of these habitats, a geochemical survey was conducted on 35 lakes. Differences between lakes were observed based on measured physico-chemical parameters, revealing neutral to alkaline waters with total dissolved solids (TDS) < 2500 mg L−1. Katerina and Trinidad-Tatana systems showed an increase in their respective TDS, total organic carbon values, and finner sediments from external to internal lakes, indicating an accumulation of solutes due to weathering. Norma and Florencia systems exhibited the most diluted and circumneutral waters, likely from the influence of glacier and snow melt. Finally, isolated lakes presented large variability in TDS values, indicating weathering and meltwater contributions at different proportions. Trace metal abundances revealed a volcanic mineral weathering source, except for Pb and Zn, which could potentially indicate atmospheric inputs. Geochemical modelling was also conducted on a subset of connected lakes to gain greater insight into processes determining solute composition, resulting in the weathering of salts, carbonates and silicates with the corresponding generation of clays. We found CO2 consumption accounted for 20–30% of the total species involved in weathering reactions. These observations allow insights into naturally occurring geochemical processes in a pristine environment, while also providing baseline data for future research assessing the impacts of anthropogenic pollution and the effects of climate change.
Fil: Lecomte, Karina Leticia. 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: Vignoni, Paula A.. German Research Centre for Geosciences; Alemania. Universitat Potsdam; Alemania. Universidad Nacional de Córdoba; Argentina
Fil: Echegoyen, Cecilia Vanina. 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: Santolaya, María Pía. Universidad Nacional de Córdoba; Argentina
Fil: Kopalová, Katerina. Charles University; República Checa
Fil: Kohler, Tyler J.. Charles University; República Checa. Ecole Polytechnique Fédérale de Lausanne; Suiza
Fil: Roman, Matej. Masaryk University; República Checa
Fil: Coria, Silvia Herminda. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Lirio, Juan Manuel. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
CLEARWATER MESA
GEOCHEMISTRY
HIGH LATITUDE LAKES
MAJOR AND TRACE ELEMENTS
PHREEQC MODELLING
PRISTINE ENVIRONMENTS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/145640
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/145640
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Dissolved major and trace geochemical dynamics in Antarctic lacustrine systemsLecomte, Karina LeticiaVignoni, Paula A.Echegoyen, Cecilia VaninaSantolaya, María PíaKopalová, KaterinaKohler, Tyler J.Roman, MatejCoria, Silvia HermindaLirio, Juan ManuelCLEARWATER MESAGEOCHEMISTRYHIGH LATITUDE LAKESMAJOR AND TRACE ELEMENTSPHREEQC MODELLINGPRISTINE ENVIRONMENTShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Clearwater Mesa (James Ross Island, northeast Antarctic Peninsula) provides a unique opportunity to study solute dynamics and geochemical weathering in the pristine lacustrine systems of a high latitude environment. In order to determine major controls on the solute composition of these habitats, a geochemical survey was conducted on 35 lakes. Differences between lakes were observed based on measured physico-chemical parameters, revealing neutral to alkaline waters with total dissolved solids (TDS) < 2500 mg L−1. Katerina and Trinidad-Tatana systems showed an increase in their respective TDS, total organic carbon values, and finner sediments from external to internal lakes, indicating an accumulation of solutes due to weathering. Norma and Florencia systems exhibited the most diluted and circumneutral waters, likely from the influence of glacier and snow melt. Finally, isolated lakes presented large variability in TDS values, indicating weathering and meltwater contributions at different proportions. Trace metal abundances revealed a volcanic mineral weathering source, except for Pb and Zn, which could potentially indicate atmospheric inputs. Geochemical modelling was also conducted on a subset of connected lakes to gain greater insight into processes determining solute composition, resulting in the weathering of salts, carbonates and silicates with the corresponding generation of clays. We found CO2 consumption accounted for 20–30% of the total species involved in weathering reactions. These observations allow insights into naturally occurring geochemical processes in a pristine environment, while also providing baseline data for future research assessing the impacts of anthropogenic pollution and the effects of climate change.Fil: Lecomte, Karina Leticia. 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: Vignoni, Paula A.. German Research Centre for Geosciences; Alemania. Universitat Potsdam; Alemania. Universidad Nacional de Córdoba; ArgentinaFil: Echegoyen, Cecilia Vanina. 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: Santolaya, María Pía. Universidad Nacional de Córdoba; ArgentinaFil: Kopalová, Katerina. Charles University; República ChecaFil: Kohler, Tyler J.. Charles University; República Checa. Ecole Polytechnique Fédérale de Lausanne; SuizaFil: Roman, Matej. Masaryk University; República ChecaFil: Coria, Silvia Herminda. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; ArgentinaFil: Lirio, Juan Manuel. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaPergamon-Elsevier Science Ltd2020-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/145640Lecomte, Karina Leticia; Vignoni, Paula A.; Echegoyen, Cecilia Vanina; Santolaya, María Pía; Kopalová, Katerina; et al.; Dissolved major and trace geochemical dynamics in Antarctic lacustrine systems; Pergamon-Elsevier Science Ltd; Chemosphere; 240; 2-2020; 90045-6535CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0045653519321770info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemosphere.2019.124938info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:55:45Zoai:ri.conicet.gov.ar:11336/145640instacron: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:34982025-10-15 14:55:46.176CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dissolved major and trace geochemical dynamics in Antarctic lacustrine systems
title Dissolved major and trace geochemical dynamics in Antarctic lacustrine systems
spellingShingle Dissolved major and trace geochemical dynamics in Antarctic lacustrine systems
Lecomte, Karina Leticia
CLEARWATER MESA
GEOCHEMISTRY
HIGH LATITUDE LAKES
MAJOR AND TRACE ELEMENTS
PHREEQC MODELLING
PRISTINE ENVIRONMENTS
title_short Dissolved major and trace geochemical dynamics in Antarctic lacustrine systems
title_full Dissolved major and trace geochemical dynamics in Antarctic lacustrine systems
title_fullStr Dissolved major and trace geochemical dynamics in Antarctic lacustrine systems
title_full_unstemmed Dissolved major and trace geochemical dynamics in Antarctic lacustrine systems
title_sort Dissolved major and trace geochemical dynamics in Antarctic lacustrine systems
dc.creator.none.fl_str_mv Lecomte, Karina Leticia
Vignoni, Paula A.
Echegoyen, Cecilia Vanina
Santolaya, María Pía
Kopalová, Katerina
Kohler, Tyler J.
Roman, Matej
Coria, Silvia Herminda
Lirio, Juan Manuel
author Lecomte, Karina Leticia
author_facet Lecomte, Karina Leticia
Vignoni, Paula A.
Echegoyen, Cecilia Vanina
Santolaya, María Pía
Kopalová, Katerina
Kohler, Tyler J.
Roman, Matej
Coria, Silvia Herminda
Lirio, Juan Manuel
author_role author
author2 Vignoni, Paula A.
Echegoyen, Cecilia Vanina
Santolaya, María Pía
Kopalová, Katerina
Kohler, Tyler J.
Roman, Matej
Coria, Silvia Herminda
Lirio, Juan Manuel
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv CLEARWATER MESA
GEOCHEMISTRY
HIGH LATITUDE LAKES
MAJOR AND TRACE ELEMENTS
PHREEQC MODELLING
PRISTINE ENVIRONMENTS
topic CLEARWATER MESA
GEOCHEMISTRY
HIGH LATITUDE LAKES
MAJOR AND TRACE ELEMENTS
PHREEQC MODELLING
PRISTINE ENVIRONMENTS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Clearwater Mesa (James Ross Island, northeast Antarctic Peninsula) provides a unique opportunity to study solute dynamics and geochemical weathering in the pristine lacustrine systems of a high latitude environment. In order to determine major controls on the solute composition of these habitats, a geochemical survey was conducted on 35 lakes. Differences between lakes were observed based on measured physico-chemical parameters, revealing neutral to alkaline waters with total dissolved solids (TDS) < 2500 mg L−1. Katerina and Trinidad-Tatana systems showed an increase in their respective TDS, total organic carbon values, and finner sediments from external to internal lakes, indicating an accumulation of solutes due to weathering. Norma and Florencia systems exhibited the most diluted and circumneutral waters, likely from the influence of glacier and snow melt. Finally, isolated lakes presented large variability in TDS values, indicating weathering and meltwater contributions at different proportions. Trace metal abundances revealed a volcanic mineral weathering source, except for Pb and Zn, which could potentially indicate atmospheric inputs. Geochemical modelling was also conducted on a subset of connected lakes to gain greater insight into processes determining solute composition, resulting in the weathering of salts, carbonates and silicates with the corresponding generation of clays. We found CO2 consumption accounted for 20–30% of the total species involved in weathering reactions. These observations allow insights into naturally occurring geochemical processes in a pristine environment, while also providing baseline data for future research assessing the impacts of anthropogenic pollution and the effects of climate change.
Fil: Lecomte, Karina Leticia. 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: Vignoni, Paula A.. German Research Centre for Geosciences; Alemania. Universitat Potsdam; Alemania. Universidad Nacional de Córdoba; Argentina
Fil: Echegoyen, Cecilia Vanina. 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: Santolaya, María Pía. Universidad Nacional de Córdoba; Argentina
Fil: Kopalová, Katerina. Charles University; República Checa
Fil: Kohler, Tyler J.. Charles University; República Checa. Ecole Polytechnique Fédérale de Lausanne; Suiza
Fil: Roman, Matej. Masaryk University; República Checa
Fil: Coria, Silvia Herminda. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Lirio, Juan Manuel. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Clearwater Mesa (James Ross Island, northeast Antarctic Peninsula) provides a unique opportunity to study solute dynamics and geochemical weathering in the pristine lacustrine systems of a high latitude environment. In order to determine major controls on the solute composition of these habitats, a geochemical survey was conducted on 35 lakes. Differences between lakes were observed based on measured physico-chemical parameters, revealing neutral to alkaline waters with total dissolved solids (TDS) < 2500 mg L−1. Katerina and Trinidad-Tatana systems showed an increase in their respective TDS, total organic carbon values, and finner sediments from external to internal lakes, indicating an accumulation of solutes due to weathering. Norma and Florencia systems exhibited the most diluted and circumneutral waters, likely from the influence of glacier and snow melt. Finally, isolated lakes presented large variability in TDS values, indicating weathering and meltwater contributions at different proportions. Trace metal abundances revealed a volcanic mineral weathering source, except for Pb and Zn, which could potentially indicate atmospheric inputs. Geochemical modelling was also conducted on a subset of connected lakes to gain greater insight into processes determining solute composition, resulting in the weathering of salts, carbonates and silicates with the corresponding generation of clays. We found CO2 consumption accounted for 20–30% of the total species involved in weathering reactions. These observations allow insights into naturally occurring geochemical processes in a pristine environment, while also providing baseline data for future research assessing the impacts of anthropogenic pollution and the effects of climate change.
publishDate 2020
dc.date.none.fl_str_mv 2020-02
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/11336/145640
Lecomte, Karina Leticia; Vignoni, Paula A.; Echegoyen, Cecilia Vanina; Santolaya, María Pía; Kopalová, Katerina; et al.; Dissolved major and trace geochemical dynamics in Antarctic lacustrine systems; Pergamon-Elsevier Science Ltd; Chemosphere; 240; 2-2020; 9
0045-6535
CONICET Digital
CONICET
url http://hdl.handle.net/11336/145640
identifier_str_mv Lecomte, Karina Leticia; Vignoni, Paula A.; Echegoyen, Cecilia Vanina; Santolaya, María Pía; Kopalová, Katerina; et al.; Dissolved major and trace geochemical dynamics in Antarctic lacustrine systems; Pergamon-Elsevier Science Ltd; Chemosphere; 240; 2-2020; 9
0045-6535
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0045653519321770
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemosphere.2019.124938
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
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 13.22299

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