Near surface detection of depth-sourced saline water, Duna-Tisza Interfluve

Authors

  • Szilvia Simon Department of Physical and Applied Geology, Eötvös Loránd University, Pázmány Péter stny 1/c, Budapest, 1117, Hungary https://orcid.org/0000-0002-3811-9141
  • Imre Müller Department of Physical and Applied Geology, Eötvös Loránd University, Pázmány Péter stny 1/c, Budapest, 1117, Hungary

Keywords:

salinization, geophysical survey, wetland

Abstract

In the Duna-Tisza Interfluve in Hungary, and mostly in the Dunavalley, the salinization is a great problem for the agriculture. The amelioration of sodic soils, and the protection of saline wetland areas require the knowledge of the source of salt, and the controls and mechanisms of salt distribution. According to hydrogeological research on the area, two principal forces drive subsurface waters (Tóth and Almási, 2001). Deep overpressures due to tectonic compression and gravity at shallow depths. In the Duna-valley – according to our hydraulic studies – both systems discharge in areas of saline lakes and salt effected soils. According to our hypothesis, the high salinity of the lakes and soils is probably related to the highly saline deep flow system. We have tried to prove this hypothesis with the help of chemical and geophysical measurements in the area of Kelemen-szék lake. The chemical results indicate the presence of saline waters below the lake (~3–5000 mg/l) and fresh groundwater to the east (~2–400 mg/l). Resistivity measurements show similar distribution of the systems to 100–120 m depth. These results suggest the presence of deep saline water near the surface and support the deep origin of high salinity.

Author Biography

  • Szilvia Simon, Department of Physical and Applied Geology, Eötvös Loránd University, Pázmány Péter stny 1/c, Budapest, 1117, Hungary

    corresponding author
    szilvia.simon@gmail.com 

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Published

2008-03-31

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How to Cite

Simon, S., & Müller, I. (2008). Near surface detection of depth-sourced saline water, Duna-Tisza Interfluve. GEORGIKON FOR AGRICULTURE, 11(1), 1-18. https://journal.uni-mate.hu/index.php/gfa/article/view/6178

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