Subsurface temperature model of the Hungarian part of the Pannonian Basin

Békési, Eszter; Lenkey, László; Limberger, Jon; Porkoláb, Kristóf; Balázs, Attila; Bonté, Damien; Vrijlandt, Mark; Horváth, Ferenc; Cloetingh, S.A.P.L.; Wees, Jan-Diederik van

doi:10.1016/j.gloplacha.2017.09.020

Cited by 34 publications

(32 citation statements)

References 72 publications

(103 reference statements)

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“…The three 'modelled maps' presented confirm the regional settings of the studied PB area as having elevated heat flow values (Lenkey et al, 2002), higher than average 65 mW/m 2 estimated for continents (Jaupart, Labrosse, Lucazeau, & Mareschal, 2015;Pollack, Hurter, & Johnson, 1993), resulting in higher geothermal gradient than Earth's average. Although, it is worth noting that, surface heat flow values determined in the calibration process of the 3D basin modelling in certain places showed significantly lower results than those presented in Lenkey et al (2002) and Békési et al (2017). Also, estimated values of geothermal gradient were in certain areas lower than those presented in Jelić, Kevrić, and Krasić (1995) and Kurevija et al (2014).…”

Section: Discussionmentioning

confidence: 75%

“…Stratigraphic and lithological outline was obtained from Lučić et al, 2001;Saftić et al, 2003 andPavelić &Kovačić, 2018, in which the main stratigraphic contacts are defined with their corresponding ages and lithological composition of stratigraphic units. For estimation of the heat flow, the input data were obtained from works that are of regional coverage (Békési et al, 2017;Lenkey, Dövényi, Horváth, & Cloething, 2002) with local corrections from Cvetković, Emanović, Stopar, and Slavinić (2018) and calibration data from wells acquired from published sources (Energy Institute Hrvoje Požar & Orkustofnun, 2017; Kolenković, 2012;Kurevija & Vulin, 2011;Kurevija, Kljaić, & Vulin, 2010;Kurevija, Vulin, & Macenić, 2014;Macenić & Kurevija, 2018;Novak Zelenika, 2005). Input data regarding paleo-water depth (PWD) values were taken from regional studies (Ćorić et al, 2009;Krijgsman, Stoica, Vasiliev, & Popov, 2010;Lučić et al, 2001;Magyar, Geary, & Müller, 1999;Pavelić, 2001;Pavelić & Kovačić, 2018;Rögl, 1996Rögl, , 1998.…”

Section: Input Data For the Supplemental Mapsmentioning

confidence: 99%

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Geoenergy potential of the Croatian part of Pannonian Basin: insights from the reconstruction of the pre-Neogene basement unconformity

et al. 2019

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Presented work focuses on the importance of unconformity that separates the Neogene infill from older Palaeozoic and Mesozoic rocks in the Croatian part of Pannonian Basin. Structure map of this horizon nearly represents the thickness map of the Neogene and Quaternary basin fill. Rock formations just below the unconformity are significantly weathered, which results in favourable petrophysical properties, making them interesting from the aspect of geoenergy potential. The pre-Neogene surface was constructed in 1:400,000 scale using publicly available subsurface maps of different scale and different level of detail. Harmonization and compilation of these maps enabled construction of a structured surface with near-vertical fault planes. Supplemental maps were constructed via basin modelling, showing the temperature distribution in the subsurface, potential source rock maturity near the mapped horizon, surface heat flow and geothermal gradient distribution. Constructed maps illustrate the importance of the mapped interval for regional planning of future geoenergy-related research..

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Section: Discussionmentioning

confidence: 75%

Section: Input Data For the Supplemental Mapsmentioning

confidence: 99%

Geoenergy potential of the Croatian part of Pannonian Basin: insights from the reconstruction of the pre-Neogene basement unconformity

et al. 2019

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“…Regional scale groundwater flow model exist for the porous sediments in the Great Hungarian Plain (VISZKOK 2001) and for the karstic water flow in the carbonates in the Transdanubian Range (CSEPREGI & LORBE -RER 1989), but in these models heat transport was not taken into account. On the other hand, lithospheric scale 3D conductive heat transport models exist for Hungary (BÉKÉSI et al 2017) and for the western part of the Pannonian basin (LENKEY et al 2017). In the first model the thermal conductivity and heat production of rocks was varied according to EMERICK & REYNOLDS (2013) in order to fit the calculated temperatures to the observed ones.…”

Section: Discussionmentioning

confidence: 99%

Review of geothermal conditions of Hungary

2021

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The heat flow map of Hungary was presented in the Atlas of Geothermal Resources in Europe in 2002 and was last updated in 2005. Since that time several geothermal projects, e.g. TransEnergy (2010-13), assessment of the geothermal potential of the Drava basin (2013) Paks-II, NPP (2016) and continuous drilling activity in the country have been in progress. Large amount of temperature data became available, which allowed the update of the Geothermal Database of Hungary and the compilation of an updated heat flow map and temperature maps. The heat flow is determined based on the Fourier law using the thermal conductivities of rocks and temperature gradient calculated from temperature observations in boreholes and wells. The thermal conductivity is known from laboratory measurements made on core samples. The thermal conductivities and the temperature data are stored in the Geothermal Database of Hungary. The heat flow is calculated in 2001 boreholes and wells using the Bullard-plot technique. The mean heat flow in Hungary is 90 mW/m2, varying between 30 mW/m2 and 120 mW/m2. The high values are found over buried basement highs in the eastern and southern part of the country, while the low values are located in the recharge areas of karstic flow systems. In the sedimentary basins, where the thickness of the Neogene and Quaternary sediments reaches 5-7 km, the heat flow is slightly below the mean value (80-90 mW/m2) due to the cooling effect of sedimentation. These basins contain the main thermal water aquifer in Hungary utilized for district heating and green house heating. The buried basement highs characterized by high heat flow (100-120 mW/m2) are potential sites to create artificial geothermal reservoirs by hydraulic fracturing (EGS). Temperature maps at 500 m, 1 km, 2 km and 3 km depths were also compiled. Similarly to the heat flow, the temperature anomalies strongly reflect the local and regional groundwater flow systems.

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“…According to this model, the main heat source is provided by the Pleistocene magmatic melts, whereas the presence of faults further enhances the recharge of meteoric waters [76]. A similar heating source was developed in Hungary as a result of a Miocene extension that caused a high thermal attenuation of the lithosphere [82,83]. In the current study, the elevated water temperatures were mainly observed close to the basaltic rock occurrences (T = 30.2 and 23.0 • C for GTES-038 and GTES-040 groundwater irrigations wells, respectively).…”

Section: Indications Of Enhanced Heatmentioning

confidence: 99%

Potential for Mineral Carbonation of CO2 in Pleistocene Basaltic Rocks in Volos Region (Central Greece)

et al. 2019

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Pleistocene alkaline basaltic lavas crop out in the region of Volos at the localities of Microthives and Porphyrio. Results from detailed petrographic study show porphyritic textures with varying porosity between 15% and 23%. Data from deep and shallow water samples were analysed and belong to the Ca-Mg-Na-HCO3-Cl and the Ca-Mg-HCO3 hydrochemical types. Irrigation wells have provided groundwater temperatures reaching up to ~30 °C. Water samples obtained from depths ranging between 170 and 250 m. The enhanced temperature of the groundwater is provided by a recent-inactive magmatic heating source. Comparable temperatures are also recorded in adjacent regions in which basalts of similar composition and age crop out. Estimations based on our findings indicate that basaltic rocks from the region of Volos have the appropriate physicochemical properties for the implementation of a financially feasible CO2 capture and storage scenario. Their silica-undersaturated alkaline composition, the abundance of Ca-bearing minerals, low alteration grade, and high porosity provide significant advantages for CO2 mineral carbonation. Preliminary calculations suggest that potential pilot projects at the Microthives and Porphyrio basaltic formations can store 64,800 and 21,600 tons of CO2, respectively.

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Subsurface temperature model of the Hungarian part of the Pannonian Basin

Cited by 34 publications

References 72 publications

Geoenergy potential of the Croatian part of Pannonian Basin: insights from the reconstruction of the pre-Neogene basement unconformity

Geoenergy potential of the Croatian part of Pannonian Basin: insights from the reconstruction of the pre-Neogene basement unconformity

Review of geothermal conditions of Hungary

Potential for Mineral Carbonation of CO2 in Pleistocene Basaltic Rocks in Volos Region (Central Greece)

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