A preliminary analysis of the relationship between oxygen isotopes in a hydrological system and mollusks in the pampean plain (Buenos Aires, Argentina)

Stable isotopes are widely used as tracers and markers, since they are circulating in ecosystems and reflect the integration of processes occurring within them. In this study, background chemical and isotopic information was collected from a hydrological system and from fossil and modern mollusk she...

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Autores principales: Gualde, María Soledad, Dietrich, Sebastián, Zabala, María Emilia, Dubny, Sabrina
Formato: Artículo revista
Lenguaje:Español
Publicado: CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa 2022
Materias:
δ18O
procesos hidrológicos
ecosistemas
interpretaciones ambientales
hydrological processes
ecosystems
environmental interpretations
Acceso en línea:https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/187
Aporte de:
Cuadernos del CURIHAM de Universidad Nacional de Rosario
id I15-R229-article-187
record_format ojs
institution Universidad Nacional de Rosario
institution_str I-15
repository_str R-229
container_title_str Cuadernos del CURIHAM
language Español
format Artículo revista
topic δ18O
procesos hidrológicos
ecosistemas
interpretaciones ambientales
δ18O
hydrological processes
ecosystems
environmental interpretations
spellingShingle δ18O
procesos hidrológicos
ecosistemas
interpretaciones ambientales
δ18O
hydrological processes
ecosystems
environmental interpretations
Gualde, María Soledad
Dietrich, Sebastián
Zabala, María Emilia
Dubny, Sabrina
A preliminary analysis of the relationship between oxygen isotopes in a hydrological system and mollusks in the pampean plain (Buenos Aires, Argentina)
topic_facet δ18O
procesos hidrológicos
ecosistemas
interpretaciones ambientales
δ18O
hydrological processes
ecosystems
environmental interpretations
author Gualde, María Soledad
Dietrich, Sebastián
Zabala, María Emilia
Dubny, Sabrina
author_facet Gualde, María Soledad
Dietrich, Sebastián
Zabala, María Emilia
Dubny, Sabrina
author_sort Gualde, María Soledad
title A preliminary analysis of the relationship between oxygen isotopes in a hydrological system and mollusks in the pampean plain (Buenos Aires, Argentina)
title_short A preliminary analysis of the relationship between oxygen isotopes in a hydrological system and mollusks in the pampean plain (Buenos Aires, Argentina)
title_full A preliminary analysis of the relationship between oxygen isotopes in a hydrological system and mollusks in the pampean plain (Buenos Aires, Argentina)
title_fullStr A preliminary analysis of the relationship between oxygen isotopes in a hydrological system and mollusks in the pampean plain (Buenos Aires, Argentina)
title_full_unstemmed A preliminary analysis of the relationship between oxygen isotopes in a hydrological system and mollusks in the pampean plain (Buenos Aires, Argentina)
title_sort preliminary analysis of the relationship between oxygen isotopes in a hydrological system and mollusks in the pampean plain (buenos aires, argentina)
description Stable isotopes are widely used as tracers and markers, since they are circulating in ecosystems and reflect the integration of processes occurring within them. In this study, background chemical and isotopic information was collected from a hydrological system and from fossil and modern mollusk shells from del Azul and Tapalqué basins, in the Pampean plain. The objective was to analyze and integrate data using hydrochemical and isotopic diagrams. Based on the analysis of δ18O it was found that in the present hydrological system the isotopic values respond to a coupling of hydrological processes. It was demonstrated that modern mollusk shells exhibit similarities with the mean isotopic values of their mother waters, which reflect the hydrological processes of the system. As regards the fossil mollusks shells, a relationship was established between their paleoenvironment of deposition and the shallow lakes of the present hydrological system. Therefore, environmental interpretations in ecosystems, based on δ18O analysis, are improved when the whole set of hydrological processes occurring in the system under study are taken into account in an integrated manner.
publisher CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa
publishDate 2022
url https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/187
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first_indexed 2023-05-18T23:05:47Z
last_indexed 2023-06-26T22:45:32Z
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spelling I15-R229-article-1872023-06-09T18:22:57Z A preliminary analysis of the relationship between oxygen isotopes in a hydrological system and mollusks in the pampean plain (Buenos Aires, Argentina) Análisis preliminar de la relación entre los isótopos del oxígeno en un sistema hidrológico y en moluscos, en el ámbito de la llanura pampeana (Buenos Aires, Argentina) Gualde, María Soledad Dietrich, Sebastián Zabala, María Emilia Dubny, Sabrina δ18O procesos hidrológicos ecosistemas interpretaciones ambientales δ18O hydrological processes ecosystems environmental interpretations Stable isotopes are widely used as tracers and markers, since they are circulating in ecosystems and reflect the integration of processes occurring within them. In this study, background chemical and isotopic information was collected from a hydrological system and from fossil and modern mollusk shells from del Azul and Tapalqué basins, in the Pampean plain. The objective was to analyze and integrate data using hydrochemical and isotopic diagrams. Based on the analysis of δ18O it was found that in the present hydrological system the isotopic values respond to a coupling of hydrological processes. It was demonstrated that modern mollusk shells exhibit similarities with the mean isotopic values of their mother waters, which reflect the hydrological processes of the system. As regards the fossil mollusks shells, a relationship was established between their paleoenvironment of deposition and the shallow lakes of the present hydrological system. Therefore, environmental interpretations in ecosystems, based on δ18O analysis, are improved when the whole set of hydrological processes occurring in the system under study are taken into account in an integrated manner. Los isótopos estables son utilizados ampliamente como trazadores y marcadores para evaluar los ecosistemas dado que se encuentran circulando integradamente en ellos reflejando los procesos que allí ocurren. En este trabajo, se recopiló información antecedente química e isotópica de un sistema hidrológico ubicado en las cuencas de los arroyos del Azul y Tapalqué, (ámbito de la llanura pampeana) y de conchas de moluscos fósiles y modernos del mismo sistema. El objetivo fue analizar e integrar los datos mediante diagramas hidroquímicos e isotópicos. A través del análisis del δ18O se encontró que en el sistema hidrológico actual los valores isotópicos responden a un acoplamiento de procesos hidrológicos. En este sentido, se ha podido establecer que las conchas de los moluscos modernos presentan similitudes respecto a los valores isotópicos medios de sus aguas madres, las cuales reflejan los procesos hidrológicos del sistema. En cuanto a las conchas de moluscos fósiles se estableció una relación entre su paleoambiente de depositación y las lagunas del sistema hidrológico actual. De este modo, las interpretaciones ambientales en los ecosistemas, a partir del análisis del δ18O, se robustecen cuando se tienen en cuenta los procesos hidrológicos que ocurren en el sistema bajo estudio de forma integrada. CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa 2022-12-23 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/187 10.35305/curiham.v28i.187 Cuadernos del CURIHAM is a half-year publication of the Centro Universitario de Rosario of hydro-environmental research directed by Adelma Mancinelli. It is dedicated to spreading the results of basic and applied research as well as technological innovations on the realm of hidro-environmental issues. It may include field study results, interdisciplinary studies or studies on the state of art on the field: basic hydraulics, fluvial and hydrodinamics, superficial and underground hydrology, urban and stochastic hydrology, planning and management of hydric resources, environmental evaluation, pollution and quality of the water, politics and water legislation, regional hydro-environmental management, hydraulic construction, methods and techniques and everything related to hydro-environmental sciences.; Vol. 28 (2022) Cuadernos del CURIHAM; Vol. 28 (2022) 2683-8168 spa https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/187/207 https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/187/209 https://creativecommons.org/licenses/by-nc-sa/4.0

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