Combined interpretation of geophysical, hydrogeochemical and environmental isotope data in a distal lobe of the Maros fluvial fan, Hungary – A novel approach in aquifer characterisation
Study region: Pannonian Basin, Hungary, Maros fluvial fan. Study focus: This paper presents a novel approach to characterise a distal lobe of a fluvial fan, demonstrating how a combined interpretation of high-resolution geophysical methods like electrical resistivity tomography and geophysical cone...
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| Format: | Article |
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Elsevier
2024-12-01
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| Series: | Journal of Hydrology: Regional Studies |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581824003276 |
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| author | Teodóra Szőcs Ágnes Rotár Szalkai Levente Magyar László Palcsu Márton Bujdosó János Stickel Zoltán Püspöki |
| author_facet | Teodóra Szőcs Ágnes Rotár Szalkai Levente Magyar László Palcsu Márton Bujdosó János Stickel Zoltán Püspöki |
| author_sort | Teodóra Szőcs |
| collection | DOAJ |
| description | Study region: Pannonian Basin, Hungary, Maros fluvial fan. Study focus: This paper presents a novel approach to characterise a distal lobe of a fluvial fan, demonstrating how a combined interpretation of high-resolution geophysical methods like electrical resistivity tomography and geophysical cone penetration tests together with log-correlation, hydrogeochemical, isotope and noble gas data provides a sound basis for aquifer characterisation. This multidisciplinary investigative approach is applicable to any fluvial fan to support water management. New hydrological insights for the region: (1) The studied fluvial fan forms a hydraulically interconnected aquifer system, with three channel belts and six hydrostratigraphic units. (2) Mean groundwater residence times are distinct in the aquifers studied. Holocene infiltration, with apparent residence time younger than 20–22 years is characteristic in the uppermost channel belt and forms part of local groundwater flow systems. The deeper aquifers host groundwater infiltrated during the Pleistocene, as part of the intermediate flow system. (3) Where the silty-clayey floodplain sediments have been replaced by sandy deposits, and groundwater abstraction is present, groundwater can communicate between the upper and lower channel belts, therefore fresh infiltration passes into the deeper channel belts, resulting mostly in mean residence times younger than 100 years. However, Pleistocene infiltration was detected at about 30 m below surface in the second channel belt, where the unconfined aquifer is missing and silty-clayey sediments are on the surface. |
| format | Article |
| id | doaj-art-4682a1fc683b4901932ed9d2c9c0bb38 |
| institution | OA Journals |
| issn | 2214-5818 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj-art-4682a1fc683b4901932ed9d2c9c0bb382025-08-20T02:30:51ZengElsevierJournal of Hydrology: Regional Studies2214-58182024-12-015610197810.1016/j.ejrh.2024.101978Combined interpretation of geophysical, hydrogeochemical and environmental isotope data in a distal lobe of the Maros fluvial fan, Hungary – A novel approach in aquifer characterisationTeodóra Szőcs0Ágnes Rotár Szalkai1Levente Magyar2László Palcsu3Márton Bujdosó4János Stickel5Zoltán Püspöki6Supervisory Authority for Regulatory Affairs, Budapest, Hungary; Correspondence to: Supervisory Authority for Regulatory Affairs, Geological Survey, Alkotás utca 50., 1123 Budapest, Hungary.Supervisory Authority for Regulatory Affairs, Budapest, HungaryGeoGold Kárpátia Ltd., Budapest, HungaryHUN-REN Institute for Nuclear Research, Debrecen, HungaryGeoGold Kárpátia Ltd., Budapest, HungaryElgoscar Plc., Budapest, HungarySupervisory Authority for Regulatory Affairs, Budapest, HungaryStudy region: Pannonian Basin, Hungary, Maros fluvial fan. Study focus: This paper presents a novel approach to characterise a distal lobe of a fluvial fan, demonstrating how a combined interpretation of high-resolution geophysical methods like electrical resistivity tomography and geophysical cone penetration tests together with log-correlation, hydrogeochemical, isotope and noble gas data provides a sound basis for aquifer characterisation. This multidisciplinary investigative approach is applicable to any fluvial fan to support water management. New hydrological insights for the region: (1) The studied fluvial fan forms a hydraulically interconnected aquifer system, with three channel belts and six hydrostratigraphic units. (2) Mean groundwater residence times are distinct in the aquifers studied. Holocene infiltration, with apparent residence time younger than 20–22 years is characteristic in the uppermost channel belt and forms part of local groundwater flow systems. The deeper aquifers host groundwater infiltrated during the Pleistocene, as part of the intermediate flow system. (3) Where the silty-clayey floodplain sediments have been replaced by sandy deposits, and groundwater abstraction is present, groundwater can communicate between the upper and lower channel belts, therefore fresh infiltration passes into the deeper channel belts, resulting mostly in mean residence times younger than 100 years. However, Pleistocene infiltration was detected at about 30 m below surface in the second channel belt, where the unconfined aquifer is missing and silty-clayey sediments are on the surface.http://www.sciencedirect.com/science/article/pii/S2214581824003276Groundwater qualityAquifer characterizationClimate changeGroundwater managementIsotopesFluvial fan |
| spellingShingle | Teodóra Szőcs Ágnes Rotár Szalkai Levente Magyar László Palcsu Márton Bujdosó János Stickel Zoltán Püspöki Combined interpretation of geophysical, hydrogeochemical and environmental isotope data in a distal lobe of the Maros fluvial fan, Hungary – A novel approach in aquifer characterisation Journal of Hydrology: Regional Studies Groundwater quality Aquifer characterization Climate change Groundwater management Isotopes Fluvial fan |
| title | Combined interpretation of geophysical, hydrogeochemical and environmental isotope data in a distal lobe of the Maros fluvial fan, Hungary – A novel approach in aquifer characterisation |
| title_full | Combined interpretation of geophysical, hydrogeochemical and environmental isotope data in a distal lobe of the Maros fluvial fan, Hungary – A novel approach in aquifer characterisation |
| title_fullStr | Combined interpretation of geophysical, hydrogeochemical and environmental isotope data in a distal lobe of the Maros fluvial fan, Hungary – A novel approach in aquifer characterisation |
| title_full_unstemmed | Combined interpretation of geophysical, hydrogeochemical and environmental isotope data in a distal lobe of the Maros fluvial fan, Hungary – A novel approach in aquifer characterisation |
| title_short | Combined interpretation of geophysical, hydrogeochemical and environmental isotope data in a distal lobe of the Maros fluvial fan, Hungary – A novel approach in aquifer characterisation |
| title_sort | combined interpretation of geophysical hydrogeochemical and environmental isotope data in a distal lobe of the maros fluvial fan hungary a novel approach in aquifer characterisation |
| topic | Groundwater quality Aquifer characterization Climate change Groundwater management Isotopes Fluvial fan |
| url | http://www.sciencedirect.com/science/article/pii/S2214581824003276 |
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