Spatial distribution of stable isotopes (18O and 2H): links between precipitation, surface and groundwater and geomorphological impact in a poorly drained plain, Cordoba, Argentina
The aim of this study is to establish the relationships between the spatial distribution of the isotopic composition of surface and groundwater with geomorphological factors and precipitation, using isotopic techniques, in the urban and rural area of Canals, located in a sector of the Pampean Plain,...
| Autores: | , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | Brasil |
| Institución: | Associação Brasileira de Águas Subterrâneas |
| Repositorio: | Águas Subterrâneas (São Paulo. Online) |
| Idioma: | español |
| OAI Identifier: | oai:ojs.aguassubterraneas.abas.org:article/30291 |
| Acceso en línea: | https://aguassubterraneas.abas.org/asubterraneas/article/view/30291 |
| Access Level: | acceso abierto |
| Palabra clave: | Aquífero Isótopos Planície Isoscape Geomorfologia Aquifer Isotopes Plain Geomorphology |
| Sumario: | The aim of this study is to establish the relationships between the spatial distribution of the isotopic composition of surface and groundwater with geomorphological factors and precipitation, using isotopic techniques, in the urban and rural area of Canals, located in a sector of the Pampean Plain, in the province of Córdoba, Argentina. Drainage in the region is moderately impeded, with the presence of dunes and deflation basins with lagoons. The free aquifer present is composed of fine and very fine sands. The hydraulic interconnections were evaluated by conventional hydrogeological methodology and stable water isotope analysis (δ²H and δ¹⁸O). Hydrodynamics and geochemistry indicate that the aquifer has flows of different hierarchies, both local and intermediate from upstream. The hydraulic, geochemical and isotopic relationships are influenced by morpholithological factors, the depth of the water table and anthropogenic activity (on-site sanitation systems, intensive agriculture and livestock farming, among others). |
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