Spatial distribution of stable isotopes (18O and 2H): links between precipitation, surface and groundwater and geomorphological impact in a poorly drained plain, Cordoba, Argentina

Published
2025-05-27
DOI: https://doi.org/10.14295/ras.v39i1.30291
Keywords: Aquífero, Isótopos, Planície, Isoscape, Geomorfologia Aquifer, Isotopes, Plain, Isoscape, Geomorphology Aquífero, Isótopos, Planície, Isoscape, Geomorfologia

    Authors

  • Miguel Pascuini Universidad Nacional de Rio Cuarto, Córdoba – Argentina
  • Adriana Cabrera Universidad Nacional de Rio Cuarto, Córdoba – Argentina
  • Monica Blarasin Universidad Nacional de Rio Cuarto, Córdoba – Argentina
  • Becher Quinodóz Fátima Universidad Nacional de Rio Cuarto, Córdoba – Argentina
  • Lutri Veronica Universidad Nacional de Rio Cuarto, Córdoba – Argentina
  • Matteoda Edel Universidad Nacional de Rio Cuarto, Córdoba – Argentina
  • Giacobone Daniela Universidad Nacional de Rio Cuarto, Córdoba – Argentina
  • Pramparo Santiago Universidad Nacional de Rio Cuarto, Córdoba – Argentina
  • Schroeter German Universidad Nacional de Rio Cuarto, Córdoba – Argentina

Abstract

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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How to Cite
Pascuini, M., Cabrera, A., Blarasin, M., Fátima, B. Q., Veronica, L., Edel, M., … German, S. (2025). Spatial distribution of stable isotopes (18O and 2H): links between precipitation, surface and groundwater and geomorphological impact in a poorly drained plain, Cordoba, Argentina . Águas Subterrâneas, 39(1), e30291. https://doi.org/10.14295/ras.v39i1.30291