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...
Guardado en:
| Autores principales: | , , , |
|---|---|
| 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: | |
| Acceso en línea: | https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/187 |
| Aporte de: |
| Sumario: | 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. |
|---|