TY - JOUR AU - Garamhegyi, Tamás AU - Székely, Ferenc AU - Carrillo-Rivera, J. Joel AU - Mádlné Szőnyi, Judit TI - Revision of archive recovery tests using analytical and numerical methods on thermal water wells in sandstone and fractured carbonate aquifers in the vicinity of Budapest, Hungary JF - ENVIRONMENTAL EARTH SCIENCES J2 - ENVIRON EARTH SCI VL - 79 PY - 2020 PG - 16 SN - 1866-6280 DO - 10.1007/s12665-020-8835-6 UR - https://m2.mtmt.hu/api/publication/31207373 ID - 31207373 N1 - Cited By :4 Export Date: 30 June 2022 Correspondence Address: Garamhegyi, T.; Department of Geology, Pázmány Péter sétány 1/C, Hungary; email: tamas.garamhegyi@gmail.com LA - English DB - MTMT ER - TY - JOUR AU - Mádlné Szőnyi, Judit AU - Czauner, Brigitta AU - Iván, Veronika AU - Tóth, Ádám AU - Simon, Szilvia AU - Erőss, Anita AU - Kovácsné Bodor, Petra AU - Trásy-Havril, Tímea AU - Boncz, László AU - Sőreg, Viktor TI - Confined carbonates–Regional scale hydraulic interaction or isolation? JF - MARINE AND PETROLEUM GEOLOGY J2 - MAR PETROL GEOL VL - 107 PY - 2019 SP - 591 EP - 612 PG - 22 SN - 0264-8172 DO - 10.1016/j.marpetgeo.2017.06.006 UR - https://m2.mtmt.hu/api/publication/3240055 ID - 3240055 N1 - József and Erzsébet Tóth Endowed Hydrogeology Chair, Department of Physical and Applied Geology, Faculty of Science, Eötvös Loránd University, 1/C Pázmány P. stny. Budapest-1117, Hungary MOL Hungarian Oil and Gas Public Limited Company, 18 Oktober 23. St. Budapest-1117, Hungary Cited By :10 Export Date: 1 July 2022 Correspondence Address: Mádl-Szőnyi, J.; József and Erzsébet Tóth Endowed Hydrogeology Chair, 1/C Pázmány P. stny. Budapest-1117, Hungary; email: szjudit@ludens.elte.hu LA - English DB - MTMT ER - TY - JOUR AU - Szijártó, Márk AU - Galsa, Attila AU - Tóth, Ádám AU - Mádlné Szőnyi, Judit TI - Numerical investigation of the combined effect of forced and free thermal convection in synthetic groundwater basins JF - JOURNAL OF HYDROLOGY J2 - J HYDROL VL - 572 PY - 2019 SP - 364 EP - 379 PG - 16 SN - 0022-1694 DO - 10.1016/j.jhydrol.2019.03.003 UR - https://m2.mtmt.hu/api/publication/30573099 ID - 30573099 N1 - WoS:hiba:000467891900029 2020-01-10 07:41 DOI azonosító nem egyezik AB - The theoretical examination of the combined effect of water table configuration and heat transfer is relevant to improve understanding of deep groundwater systems, not only in siliciclastic sedimentary basins, but also in fractured rocks or karstified carbonates. Numerical model calculations have been carried out to investigate the interaction of topography-driven forced and buoyancy-driven free thermal convection in a synthetic, two-dimensional model. Effects of numerous model parameters were systematically studied in order to examine their influence on the Darcy flux, the temperature and the hydraulic head field. It was established that higher geothermal gradients and greater model depths facilitate the evolution of time-dependent free thermal convection in agreement with changes of the thermal Rayleigh number and the modified Péclet number. However, increasing water table slope and anisotropy coefficient favor the formation of stationary forced thermal convection. Free thermal convection mainly affects the deeper part of the midline and the discharge zone of the synthetic model. In the examined model basins, the position of the maximum hydraulic head is located within the bottom thermal boundary layer near the recharge zone. This divergent stagnation point underlies a local downwelling zone characterized by underpressure. These simulations draw attention to the importance of understanding the combined effect of forced and free thermal convection in sedimentary basins regarding regional groundwater flow patterns, and temperature distributions. LA - English DB - MTMT ER - TY - JOUR AU - Békési, Eszter AU - Lenkey, László AU - Limberger, J AU - Porkoláb, Kristóf AU - Balázs, Attila AU - Bonté, D AU - Vrijlandt, M AU - Horváth, Ferenc AU - Cloetingh, S AU - van Wees, JD TI - Subsurface temperature model of the Hungarian part of the Pannonian Basin JF - GLOBAL AND PLANETARY CHANGE J2 - GLOBAL PLANET CHANGE VL - 171 PY - 2018 SP - 48 EP - 64 PG - 17 SN - 0921-8181 DO - 10.1016/j.gloplacha.2017.09.020 UR - https://m2.mtmt.hu/api/publication/26902707 ID - 26902707 AB - Hungary is one of the most suitable countries in Europe for geothermal development, as a result of large amounts of Miocene extension and associated thermal attenuation of the lithosphere. For geothermal exploration, it is crucial to have an insight into the subsurface temperature distribution. A new thermal model of Hungary is presented extending from the surface down to the lithosphere-asthenosphere boundary (LAB) based on a new stochastic thermal modeling workflow. The model solves the heat equation in steady-state, assuming conduction as the main heat transfer mechanism. At the top and the base, we adopt a constant surface temperature and basal heat flow condition. For the calibration of the model, temperature measurements were collected from the Geothermal Database of Hungary. The model is built up in a layered structure, where each layer has its own thermal properties. The prior thermal properties and basal condition of the model are updated through the ensemble smoother with multiple data assimilation technique. The prior model shows a misfit with the observed temperatures, which is explained fundamentally by transient thermal effects and non-conductive heat transfer. Other misfits can be attributed to a-priori assumptions on thermal properties, boundary conditions, and uncertainty in the model geometry. The updated models considerably improve the prior model, showing a better fit with measured records. The updated models are capable to reproduce the thermal effect of lithospheric extension and the sedimentary infill of the Pannonian Basin. Results indicate that the hottest areas below 3 km are linked to the basement highs surrounded by deep subbasins of the Great Hungarian Plain. Our models provide an indication on the potential sites for future EGS in Hungary and can serve as an input for geothermal resource assessment. LA - English DB - MTMT ER - TY - JOUR AU - Mádlné Szőnyi, Judit AU - Erőss, Anita AU - Trásy-Havril, Tímea AU - Poros, Zsófia AU - Győri, Orsolya AU - Tóth, Ádám AU - Csoma, A AU - Ronchi, P AU - Mindszenty, Andrea TI - Fluidumok, áramlási rendszerek és ásványtani lenyomataik összefüggései a Budai Termálkarszton [Fluids, flow systems and their mineralogical imprints in the Buda Thermal Karst] JF - FÖLDTANI KÖZLÖNY J2 - FÖLDTANI KÖZLÖNY VL - 148 PY - 2018 IS - 1 SP - 75 EP - 96 PG - 22 SN - 0015-542X DO - 10.23928/foldt.kozl.2018.148.1.75 UR - https://m2.mtmt.hu/api/publication/3385290 ID - 3385290 N1 - Eötvös Loránd Tudományegyetem, Általános és Alkalmazott Földtani Tanszék, Pázmány P. sétány 1/ C, Budapest, 1117, Hungary ConocoPhillips, Houston, TX 77252-2197, United States 600 North Dairy Ashford, P.O. Box 219777079-1175, United States MTA-ELTE Geológiai, Geofizikai és Űrtudományi Kutatócsoport, Pázmány P. sétány 1/ C, Budapest, 1117, Hungary MOL Nyrt, Október huszonharmadika u. 18, Budapest, 1117, Hungary Eni Spa, Olaszország, Piazzale Enrico Mattei, Róma, 100144, Italy Export Date: 18 December 2018 AB - The fluid evolution of the Buda Thermal Karst (BTK) has been ongoing since the Late Miocene. At that time the system was fully confined and only the thermal buoyancy influenced the flow of fluids in the system. Parallel with the uplift of the Buda Hills, the infiltration of fresh water into the system began; thus the subsequent evolution of the topography-driven groundwater flow brought about the superposition of the two fluid flow systems. This occurred with different prevailing driving forces: namely, the topography in the upper part and buoyancy in the lower. The uplift of the Gödöllő Hills also had an influence on the processes of the BTK and resulted in the evolution of fluid flow heading from the eastern, confined part of the system towards the River Danube. Consequently, the dominantly basinal fluids of the confining strata infiltrated into the underlying carbonate aquifers filled with meteoric water via vertical leakage. These changes were followed in the mineral paragenesis of the BTK. The western region of the BTK is part of the NE Trans-danubian Range and nowadays the carbonate aquifers are semi- or unconfined. The springs of this area represent the terminal points of local, intermediate and regional flow systems and they display the rock-water interaction along the flow path. The evaluation of the flow pattern could reveal the West–East direction of flow under the River Danube and the upwelling of fluids towards the discharge areas along the River Danube in the upper, shallow part of the system. The NaCl-type basinal fluids originated from the eastern-confining layers and they contribute to the regional flow component. West–Southwest of the River Danube, Mg2+- and SO42 - rich water can be found. The results represent the hydraulically continuous flow sytem of the BTK, the asymmetric flow pattern at the boundary of unconfined and confined carbonate aquifers and, moreover, the significance of confining layers in the accumulation and dissipation of heat. The pressure conditions present in the system are nearly hydrostatic. The NE Marginal Fault also has a role in the differentiation of the discharge areas at the foothills of the Rózsadomb and the Gellért Hill. In the area behind the Gellért Hill an intermediate flow system appears; therefore, at the foothills of the Gellért Hill only thermal water is discharged. At the Rózsadomb the lukewarm and hydrothermal fluid discharge areas are close to each other. Thus the evidence strongly suggests that the respective hydrothermal components of the Central and Southern systems differ. The NaCl-type water of the eastern half of the basin contributes to the discharge of the regional flow path of the Central system. This system transfers H2 S and CH4 to the springs. In the case of the Southern System, the excess of sulphate in the water is more prevalent, and this may be in connection with the evaporite layers in the SW. On the basis of sulphur isotope analysis, the meteoric fluid component of the Rózsadomb receives its sulphur during infiltration through a pyrite-rich covering strata. The brief details mentioned here suggest that a better understanding of the fluid evolution of the BTK will contribute to the interpretation of hypogenic karstification and cave evolution in the area. © 2018, Hungarian Geological Society. All rights reserved. LA - Hungarian DB - MTMT ER - TY - JOUR AU - Erhardt, Ildikó AU - Ötvös, V AU - Erőss, Anita AU - Czauner, Brigitta AU - Simon, Szilvia AU - Mádlné Szőnyi, Judit TI - Hydraulic evaluation of the hypogenic karst area in Budapest (Hungary) JF - HYDROGEOLOGY JOURNAL J2 - HYDROGEOL J VL - 25 PY - 2017 IS - 6 SP - 1871 EP - 1891 PG - 21 SN - 1431-2174 DO - 10.1007/s10040-017-1591-3 UR - https://m2.mtmt.hu/api/publication/3215600 ID - 3215600 N1 - Government Office for Vas County Department of Environmental Protection and Nature Conservation Management, Vörösmarty utca 2, Szombathely, 9700, Hungary Sopron Waterworks Co, Bartók Béla utca, Sopron, 42, Hungary József and Erzsébet Endowed Hydrogeology Chair, Dept. of Physical and Applied Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University, Pázmány Péter sétány 1/c, Budapest, 1117, Hungary Cited By :11 Export Date: 23 May 2022 Correspondence Address: Erhardt, I.; Government Office for Vas County Department of Environmental Protection and Nature Conservation Management, Vörösmarty utca 2, Hungary; email: erhardtildi@gmail.com LA - English DB - MTMT ER - TY - CHAP AU - Mádlné Szőnyi, Judit AU - Tóth, Ádám ED - Philippe, Renard ED - Catherine, Bertrand TI - Topographically Driven Fluid Flow at the Boundary of Confined and Unconfined Sub-basins of Carbonates: Basic Pattern and Evaluation Approach on the Example of Buda Thermal Karst T2 - EuroKarst 2016, Neuchâtel PB - Springer Netherlands CY - Cham SN - 9783319454658 T3 - Advances in Karst Science PY - 2017 SP - 89 EP - 98 PG - 10 DO - 10.1007/978-3-319-45465-8_10 UR - https://m2.mtmt.hu/api/publication/3163666 ID - 3163666 LA - English DB - MTMT ER - TY - CHAP AU - Mádlné Szőnyi, Judit AU - Erőss, Anita AU - Tóth, Ádám ED - Klimchouk, A ED - Palmer, A ED - De Waele, J ED - Auler, A ED - Audra, P TI - Fluid Flow Systems and Hypogene Karst of the Transdanubian Range, Hungary—With Special Emphasis on Buda Thermal Karst T2 - Hypogene Karst Regions and Caves of the World PB - Springer Netherlands CY - Graz SN - 9783319533483 PY - 2017 SP - 267 EP - 278 PG - 12 DO - 10.1007/978-3-319-53348-3_17 UR - https://m2.mtmt.hu/api/publication/3256328 ID - 3256328 LA - English DB - MTMT ER - TY - JOUR AU - Trásy-Havril, Tímea AU - John, W. Molson AU - Mádlné Szőnyi, Judit TI - Evolution of fluid flow and heat distribution over geological time scales at the margin of unconfined and confined carbonate sequences - A numerical investigation based on the Buda Thermal Karst analogue JF - MARINE AND PETROLEUM GEOLOGY J2 - MAR PETROL GEOL VL - 78 PY - 2016 SP - 738 EP - 749 PG - 12 SN - 0264-8172 DO - 10.1016/j.marpetgeo.2016.10.001 UR - https://m2.mtmt.hu/api/publication/3127627 ID - 3127627 N1 - Megjegyzés-26277417 N1 Funding details: NSERC, Natural Sciences and Engineering Research Council of Canada Megjegyzés-26277420 N1 Funding details: NSERC, Natural Sciences and Engineering Research Council of Canada LA - English DB - MTMT ER - TY - JOUR AU - Mádlné Szőnyi, Judit AU - Tóth, Ádám TI - Basin-scale conceptual groundwater flow model for an unconfined and confined thick carbonate region JF - HYDROGEOLOGY JOURNAL J2 - HYDROGEOL J VL - 23 PY - 2015 IS - 7 SP - 1359 EP - 1380 PG - 22 SN - 1431-2174 DO - 10.1007/s10040-015-1274-x UR - https://m2.mtmt.hu/api/publication/2969005 ID - 2969005 N1 - Cited By :70 Export Date: 4 April 2023 Correspondence Address: Mádl-Szőnyi, J.; Department of Physical and Applied Geology, Pázmány P. stny. 1/C, Hungary; email: szjudit@ludens.elte.hu AB - Application of the gravity-driven regional groundwater flow (GDRGF) concept to the hydrogeologically complex thick carbonate system of the Transdanubian Range (TR), Hungary, is justified based on the principle of hydraulic continuity. The GDRGF concept informs about basin hydraulics and groundwater as a geologic agent. It became obvious that the effect of heterogeneity and anisotropy on the flow pattern could be derived from hydraulic reactions of the aquifer system. The topography and heat as driving forces were examined by numerical simulations of flow and heat transport. Evaluation of groups of springs, in terms of related discharge phenomena and regional chloride distribution, reveals the dominance of topography-driven flow when considering flow and related chemical and temperature patterns. Moreover, heat accumulation beneath the confined part of the system also influences these patterns. The presence of cold, lukewarm and thermal springs and related wetlands, creeks, mineral precipitates, and epigenic and hypogenic caves validates the existence of GDRGF in the system. Vice versa, groups of springs reflect rock–water interaction and advective heat transport and inform about basin hydraulics. Based on these findings, a generalized conceptual GDRGF model is proposed for an unconfined and confined carbonate region. An interface was revealed close to the margin of the unconfined and confined carbonates, determined by the GDRGF and freshwater and basinal fluids involved. The application of this model provides a background to interpret manifestations of flowing groundwater in thick carbonates generally, including porosity enlargement and hydrocarbon and heat accumulation. © 2015, Springer-Verlag Berlin Heidelberg. LA - English DB - MTMT ER - TY - JOUR AU - Erőss, Anita AU - Mádlné Szőnyi, Judit AU - Heinz, Surbeck AU - Horváth, Ákos AU - Nico, Goldscheider AU - Anita, É Csoma TI - Radionuclides as natural tracers for the characterization of fluids in regional discharge areas, Buda Thermal Karst, Hungary JF - JOURNAL OF HYDROLOGY J2 - J HYDROL VL - 426-427 PY - 2012 SP - 124 EP - 137 PG - 14 SN - 0022-1694 DO - 10.1016/j.jhydrol.2012.01.031 UR - https://m2.mtmt.hu/api/publication/1843789 ID - 1843789 LA - English DB - MTMT ER - TY - JOUR AU - Goldscheider, N AU - Mádlné Szőnyi, Judit AU - Erőss, Anita AU - Schill, E TI - Review: Thermal water resources in carbonate rock aquifers. JF - HYDROGEOLOGY JOURNAL J2 - HYDROGEOL J VL - 18 PY - 2010 IS - 6 SP - 1303 EP - 1318 PG - 16 SN - 1431-2174 DO - 10.1007/s10040-010-0611-3 UR - https://m2.mtmt.hu/api/publication/1374546 ID - 1374546 N1 - Megjegyzés-22054774 LA - English DB - MTMT ER - TY - JOUR AU - Cserepes, L AU - Lenkey, László TI - Forms of hydrothermal and hydraulic flow in a homogeneous unconfined aquifer JF - GEOPHYSICAL JOURNAL INTERNATIONAL J2 - GEOPHYS J INT VL - 158 PY - 2004 SP - 785 EP - 797 PG - 13 SN - 0956-540X DO - 10.1111/j.1365-246X.2004.02182.x UR - https://m2.mtmt.hu/api/publication/1513629 ID - 1513629 LA - English DB - MTMT ER - TY - JOUR AU - Tóth, József AU - Almasi, I TI - Interpretation of observed fluid potential patterns in a deep sedimentary basin under tectonic compression: Hungarian Great Plain, Pannonian Basin JF - GEOFLUIDS J2 - GEOFLUIDS VL - 1 PY - 2001 IS - 1 SP - 11 EP - 36 PG - 26 SN - 1468-8115 DO - 10.1046/j.1468-8123.2001.11004.x UR - https://m2.mtmt.hu/api/publication/2947136 ID - 2947136 AB - The approximate to 40 000 km(2) Hungarian Great Plain portion of the Pannonian Basin consists of a basin fill of 100 m to more than 7000 m thick semi- to unconsolidated marine, deltaic, lacustrine and fluviatile clastic sediments of Neogene age, resting on a strongly tectonized Pre-Neogene basement of horst-and-graben topography of a relief in excess of 5000 m. The basement is built of a great variety of brittle rocks, including flysch, carbonates and metamorphics. The relatively continuous Endrod Aquitard, with a permeability of less than 1 md (10(-15) m(2)) and a depth varying between 500 and 5000 m, divides the basin's rock framework into upper and lower sequences of highly permeable rock units, whose permeabilities range from a few tens to several thousands of millidarcy. Subsurface fluid potential and flow fields were inferred from 16 192 water level and pore pressure measurements using three methods of representation: pressure-elevation profiles; hydraulic head maps; and hydraulic cross-sections. Pressure-elevation profiles were constructed for eight areas. Typically, they start from the surface with a straight-line segment of a hydrostatic gradient (gamma(st) = 9.8067 MPa km(-1)) and extend to depths of 1400-2500 m. At high surface elevations, the gradient is slightly smaller than hydrostatic, while at low elevations it is slightly greater. At greater depths, both the pressures and theft vertical gradients are uniformly superhydrostatic. The transition to the overpressured depths may be gradual, with a gradient of gamma(dyn) = 10(-15) MPa km(-1) over a vertical distance of 400-1000 m, or abrupt, with a pressure jump of up to 10 MPa km(-1) over less than 100 m and a gradient of gamma(dyn) > 20 MPa km(-1). According to the hydraulic head maps for 13 100-500 m thick horizontal slices of the rock framework, the fluid potential in the near-surface domains declines with depth beneath positive topographic features, but it increases beneath depressions. The approximate boundary between these hydraulically contrasting regions is the 100 m elevation contour line in the Duna-Tisza interfluve, and the 100-110 m contours in the Nyirseg uplands. Below depths of 600 m, islets of superhydrostatic heads develop which grow in number, areal extent and height as the depth increases; hydraulic heads may exceed 3000 m locally. A hydraulic head 'escarpment' appears gradually in the elevafion range of - 1000 to - 2800 m along an arcuate line which tracks a major regional fault zone striking NE-SW: heads drop stepwise by several hundred metres, at places 2000 m, from its north and west sides to the south and east. The escarpment forms a 'fluid potential bank' between a 'fluid potential highland' (500-2500 m) to the north and west, and a 'fluid potential basin' (100-500 m) to the south and east. A 'potential island' rises 1000 m high above this basin further south. According to four vertical hydraulic sections, groundwater flow is controlled by the topography in the upper 200-1700 m of the basin; the driving force is orientated downwards beneath the highlands and upwards beneath the lowlands. However, it is directed uniformly upwards at greater depths. The transition between the two regimes may be gradual or abrupt, as indicated by wide or dense spacing of the hydraulic head contours, respectively. Pressure 'plumes' or 'ridges' may protrude to shallow depths along faults originating in the basement. The basement horsts appear to be overpressured relative to the intervening grabens. The principal thesis of this paper is that the two main driving forces of fluid flow in the basin are gravitation, due to elevation differences of the topographic relief, and tectonic compression. The flow field is unconfined in the gravitational regime, whereas it is confined in the compressional regime. The nature and geometry of the fluid potential field between the two regimes are controlled by the sedimentary and structural features of the rock units in that domain, characterized by highly permeable and localized sedimentary windows, conductive faults and fracture zones. The transition between the two potential fields can be gradual or abrupt in the vertical, and island-like or ridge-like in plan view. The depth of the boundary zone can vary between 400 and 2000 m. Recharge to the gravitational regime is inferred to occur from infiltrating precipitation water, whereas that to the confined regime is from pore volume reduction due to the basement's tectonic compression. LA - English DB - MTMT ER - TY - JOUR AU - Haas, János AU - Korpás, L AU - Török, Ákos AU - Dosztály, L AU - Góczán, F AU - Hámorné, Vidó Mária AU - Oraveczné, Scheffer A AU - Tardiné, Filácz E TI - Felső-triász medence és lejtőfáciesek a Budai-hegységben - a Vérhalom téri fúrás vizsgálatának tükrében [Upper Triassic basin and slope facies in the Buda Mts.–based on study of core drilling Vérhalom tér, Budapest] JF - FÖLDTANI KÖZLÖNY J2 - FÖLDTANI KÖZLÖNY VL - 130 PY - 2000 IS - 3 SP - 371 EP - 421 PG - 51 SN - 0015-542X UR - https://m2.mtmt.hu/api/publication/1005843 ID - 1005843 LA - English DB - MTMT ER - TY - JOUR AU - Tari, Gábor AU - Báldi, T AU - Báldi-Beke, M TI - Paleogene retroarc flexural basin beneath the Neogene Pannonian Basin: A geodynamic model JF - TECTONOPHYSICS J2 - TECTONOPHYSICS VL - 226 PY - 1993 IS - 1-4 SP - 433 EP - 455 PG - 23 SN - 0040-1951 DO - 10.1016/0040-1951(93)90131-3 UR - https://m2.mtmt.hu/api/publication/22049448 ID - 22049448 N1 - Z9: 40 WC: Geochemistry & Geophysics LA - English DB - MTMT ER - TY - JOUR AU - Bodri, Louise TI - GEOTHERMAL MODEL OF THE EARTHS CRUST IN THE PANNONIAN BASIN JF - TECTONOPHYSICS J2 - TECTONOPHYSICS VL - 72 PY - 1981 IS - 1-2 SP - 61 EP - 73 PG - 13 SN - 0040-1951 DO - 10.1016/0040-1951(81)90087-1 UR - https://m2.mtmt.hu/api/publication/2900029 ID - 2900029 LA - English DB - MTMT ER -