caa a22 4500 445815000 CHVBK 20180317145224.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s10040-011-0711-8 doi (NATIONALLICENCE)springer-10.1007/s10040-011-0711-8 Conceptual model for surface salinization in an overpressured and a superimposed gravity-flow field, Lake Kelemenszék area, Hungary [Elektronische Daten] [Szilvia Simon, Judit Mádl-Szőnyi, Imre Müller, György Pogácsás] Modèle conceptuel d'une salinisation de surface dans un champ d'écoulement gravitaire sous pression avec flux surimposé, secteur du lac Kelemenszék, Hongrie The Duna-Tisza Interfluve, Hungary, is characterized by patchy surface salinization. However, in the Duna Valley, salinized wetlands appear in a N-S trending continuous zone (Lake Kelemenszék area). The source of the salts is reported to be the overpressured NaCl-type water of the Pre-Neogene basement and the NaHCO3-type water of the Neogene sediments. This "basement and basin origin of salts” concept is based on the strong correlation between the regional distribution of surface salinization and the basinal flow pattern. This study, applying integrated methods, presents hydrogeological evidence for this theory and creates a conceptual model for the salinization. The model reflects that the basement water rises near to the surface through conductive faults crosscutting an extensive aquitard and aquifer. These faults ensure "shortcut”-type water exchange between the basement and the uppermost aquifer. This hydraulic setting generates chemical anomalies in this aquifer up to the surface, producing Na-HCO3-Cl-type water. This water causes extensive surface salinization in those discharge areas where the infiltrating freshwater does not superimpose the upwelling saline water. Where a freshwater lens is located above the ascending saline water, this fresh gravity-driven flow controls the surface distribution of salts, which results in saline patches. Springer-Verlag, 2011 Salinization nationallicence Geophysical methods nationallicence Gravity-driven flow nationallicence Overpressured flow nationallicence Hungary nationallicence Simon Szilvia Department of Physical and Environmental Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University of Sciences, Pázmány Péter sétány 1/c, 1117, Budapest, Hungary aut Mádl-Szőnyi Judit Department of Physical and Environmental Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University of Sciences, Pázmány Péter sétány 1/c, 1117, Budapest, Hungary aut Müller Imre Department of Physical and Environmental Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University of Sciences, Pázmány Péter sétány 1/c, 1117, Budapest, Hungary aut Pogácsás György Department of Physical and Environmental Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University of Sciences, Pázmány Péter sétány 1/c, 1117, Budapest, Hungary aut Hydrogeology Journal Springer-Verlag 19/3(2011-05-01), 701-717 1431-2174 19:3<701 2011 19 10040 https://doi.org/10.1007/s10040-011-0711-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10040-011-0711-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Simon Szilvia Department of Physical and Environmental Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University of Sciences, Pázmány Péter sétány 1/c, 1117, Budapest, Hungary aut NATIONALLICENCE 700 1- Mádl-Szőnyi Judit Department of Physical and Environmental Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University of Sciences, Pázmány Péter sétány 1/c, 1117, Budapest, Hungary aut NATIONALLICENCE 700 1- Müller Imre Department of Physical and Environmental Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University of Sciences, Pázmány Péter sétány 1/c, 1117, Budapest, Hungary aut NATIONALLICENCE 700 1- Pogácsás György Department of Physical and Environmental Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University of Sciences, Pázmány Péter sétány 1/c, 1117, Budapest, Hungary aut NATIONALLICENCE 773 0- Hydrogeology Journal Springer-Verlag 19/3(2011-05-01), 701-717 1431-2174 19:3<701 2011 19 10040 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer