E3S Web Conf.
Volume 54, 201825th Salt Water Intrusion Meeting (SWIM 2018)
|Number of page(s)||5|
|Published online||17 September 2018|
Tectonically conditioned brine leakage into usable freshwater aquifers – implications for the quality of groundwater exploited in central Poland
Polish Geological Institute – National Research Institute (PGI-NRI), Kielce, Poland
Contact Information: Dorota Kaczor–Kurzawa, Polish Geological Institute – National Research Institute, Holy Cross Branch, ul. Zgoda 21, 25-953 Kielce; e-mail: firstname.lastname@example.org
Brine leakage areas, which are identical with zones of chloride ion content anomalies (Cl– >60 mg/dm3) in usable aquifers, were mapped and examined on the basis of chemical and isotopic analyses. These zones are predominantly developed in tectonic conditions enabling the inflow of Mesozoic saline waters and brines into freshwater aquifers: 1) fault zones, 2) hydrogeological windows above salt anticlines and elevated tectonic blocks, 3) salt diapirs. The natural process of brine migration has been accelerated in some areas due to groundwater exploitation. Consequently, the decline of groundwater quality on many intakes has been reported, which is a result of the elevated content of chloride, Natrium and Ammonium ions.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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