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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/145640
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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 Técnicas2025-09-29T10:00:00Zoai: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:34982025-09-29 10:00:00.47CONICET 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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1844613776375021568 |
score |
13.070432 |