TY - JOUR AU - Cseresznyés, Dóra AU - Király, Csilla AU - Gál, Á AU - Papucs, A AU - Kónya, P AU - Lakos, I AU - Kovács, Ivett AU - Rinyu, László AU - Szamosfalvi, Á AU - Szabó, Csaba AU - Falus, György AU - Czuppon, György TI - Surface occurrence of dawsonite and natural CO2 emanation in Covasna, in the Eastern Carpathians: A stable isotope study JF - CHEMICAL GEOLOGY J2 - CHEM GEOL VL - 645 PY - 2024 SN - 0009-2541 DO - 10.1016/j.chemgeo.2023.121883 UR - https://m2.mtmt.hu/api/publication/34445854 ID - 34445854 N1 - Lithosphere Fluid Research Lab (LRG), Eötvös Loránd University (ELTE), Pázmány Péter sétány 1/C, Budapest, 1117, Hungary Doctoral School of Environmental Science, Eötvös Loránd University (ELTE), Pázmány Péter sétány 1/C, Budapest, 1117, Hungary Geographical Institute (GI), Research Centre for Astronomy and Earth Sciences, Eötvös Loránd Research Network, Budaörsi út 45, Budapest, 1112, Hungary Department of Geology, Babeș-Bolyai University, Kogălniceanu str. 1., Cluj, RO-400084, Romania County Nature Conservation and Mountain Rescue Center, Gábor Áron str. 1., Sfântu Gheorghe, RO-520003, Romania Directorate of Geology, Supervisory Authority for Regulatory Affairs (SARA), Sas utca 20-22., Budapest, 1051, Hungary Institute for Geological and Geochemical Research, HUN-REN Research Centre for Astronomy and Earth Sciences, Budaörsi út 45, Budapest, 1112, Hungary CSFK, MTA Centre of Excellence, Konkoly Thege Miklós út 15–17, Budapest, 1121, Hungary Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research (ATOMKI), HUN-REN, Bem tér 18/c., Debrecen, 4026, Hungary Institute of Earth Physics and Space Science, HUN-REN, Csatkai Endre utca 6-8., Sopron, 9400, Hungary Export Date: 15 January 2024 Correspondence Address: Czuppon, G.; Institute for Geological and Geochemical Research, Budaörsi út 45, Hungary; email: czuppon@geochem.hu LA - English DB - MTMT ER - TY - JOUR AU - Lu, P AU - Zhang, G AU - Huang, Y AU - Apps, J AU - Zhu, C TI - Dawsonite as a Temporary but Effective Sink for Geological Carbon Storage JF - INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL J2 - INT J GREENH GAS CON VL - 119 PY - 2022 PG - 13 SN - 1750-5836 DO - 10.1016/j.ijggc.2022.103733 UR - https://m2.mtmt.hu/api/publication/33038759 ID - 33038759 N1 - Export Date: 15 April 2024 LA - English DB - MTMT ER - TY - JOUR AU - Cseresznyés, Dóra AU - Czuppon, György AU - Király, Csilla AU - Demény, Attila AU - Györe, D AU - Forray, V AU - Kovács, Ivett AU - Szabó, Csaba AU - Falus, György TI - Origin of dawsonite-forming fluids in the Mihályi-Répcelak field (Pannonian Basin) using stable H, C and O isotope compositions: Implication for mineral storage of carbon-dioxide JF - CHEMICAL GEOLOGY J2 - CHEM GEOL VL - 584 PY - 2021 SN - 0009-2541 DO - 10.1016/j.chemgeo.2021.120536 UR - https://m2.mtmt.hu/api/publication/32240638 ID - 32240638 N1 - Lithosphere Fluid Research Lab (LRG), Department of Petrology and Geochemistry, Institute of Geography and Earth Sciences, Eötvös Loránd University (ELTE), Pázmány Péter sétány 1/C, Budapest, 1117, Hungary Mining and Geological Survey of Hungary (MBFSZ), Colombus utca 17-23, Budapest, 1145, Hungary Institute for Geological and Geochemical Research (IGGR), Research Centre for Astronomy and Earth Sciences, Eötvös Loránd Research Network, Budaörsi út 45, Budapest, 1112, Hungary Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research, Bem tér 18/c, Debrecen, 4026, Hungary Geographical Institute (GI), Research Centre for Astronomy and Earth Sciences, Eötvös Loránd Research Network, Budaörsi út 45, Budapest, 1112, Hungary Isotope Geosciences Unit, Scottish Universities Environmental Research Centre (SUERC), East Kilbride, Scotland G75 0QF, United Kingdom Export Date: 6 January 2022 Correspondence Address: Czuppon, G.; Institute for Geological and Geochemical Research (IGGR), Budaörsi út 45, Hungary; email: czuppon@geochem.hu AB - Natural CO2 reservoirs provide an opportunity to study long-term fluid-rock interactions, which are essential to reassure the safety of mineral storage of carbon-dioxide. The Mihályi-Répcelak field (Pannonian Basin, Central Europe) is one of the largest natural CO2-bearing reservoirs in Europe (25 Mt). The CO2 was trapped in Neogene sandstones, which contain various carbonate minerals (dolomite, ankerite, siderite, dawsonite). To reveal the origin of the parent fluid, from which these minerals precipitated, dawsonite and siderite were separated by a new physical method to minimise the uncertainties in the analysis of their stable isotope composition. The δ13CDaw values range from +1.3 to +1.6‰ and the calculated δ13CCO2 values in equilibrium with dawsonite (−4.8‰ - –2.0‰) overlap with the carbon isotope compositions of the local CO2 and the European Subcontinental Lithospheric Mantle (−3.9‰ - –2.1‰). This indicates that the dawsonite-forming CO2 had a magmatic origin. The siderite data indicates that some formed from the magmatic CO2, possibly simultaneously with dawsonite (−6.0‰ - –3.9‰), whereas the rest (−8.4 - –6.1‰) formed either from a fractionated CO2 with magmatic origin or before the CO2 invasion. The hydrogen isotope composition of structural OH− of dawsonite (−57‰ to −74‰) was determined and was used to estimate the origin of the interacting porewater. The calculated porewater data (δD: −69‰ - –103‰ and δ18O: −1.4‰ - +4.7‰) indicate that the parent fluid was meteoric water modified by water-rock interaction. Our data allows estimation of the total amount of CO2 stored in the dawsonite-bearing sandstone reservoir to be 25 kg/m3, well in line with previous modelling works, which gives a total of 2.01 × 106 t of CO2, higher than previous estimates. We suggest that individual mineral analysis complemented by hydrogen isotope analysis is to be employed to effectively trace in-reservoir fluid-rock interactions in CO2 reservoirs and provide valuable input data for geochemical modelling for better predicting conditions for mineral storage of CO2. LA - English DB - MTMT ER - TY - JOUR AU - Szabó-Krausz, Zsuzsanna AU - Gál, Nóra Edit AU - Gável, V AU - Falus, György TI - Wellbore cement alteration during decades of abandonment and following CO2 attack – A geochemical modelling study in the area of potential CO2 reservoirs in the Pannonian Basin JF - APPLIED GEOCHEMISTRY J2 - APPL GEOCHEM VL - 113 PY - 2020 PG - 12 SN - 0883-2927 DO - 10.1016/j.apgeochem.2019.104516 UR - https://m2.mtmt.hu/api/publication/31033081 ID - 31033081 N1 - CODEN: APPGE LA - English DB - MTMT ER - TY - JOUR AU - Király, Csilla AU - Falus, György AU - Gresina, Fruzsina AU - Jakab, Gergely Imre AU - Szalai, Zoltán AU - Varga, György TI - Granulometric properties of particles in Upper Miocene sandstones from thin sections, Szolnok Formation, Hungary JF - HUNGARIAN GEOGRAPHICAL BULLETIN (2009-) J2 - HUNG GEOGR BULL (2009-) VL - 68 PY - 2019 IS - 4 SP - 341 EP - 353 PG - 13 SN - 2064-5031 DO - 10.15201/hungeobull.68.4.2 UR - https://m2.mtmt.hu/api/publication/31029800 ID - 31029800 N1 - Geographical Institute, Research Centre for Astronomy and Earth Sciences, Budaörsi út 45, Budapest, H-1112, Hungary Mining and Geological Survey of Hungary, Columbus u. 17-23, Budapest, H-1145, Hungary Institute of Geography and Earth Sciences, Faculty of Science, Eötvös University, Pázmány Péter sétány 1/c, Budapest, H-1117, Hungary Institute of Geography and Geoinformatics, University of Miskolc, Egyetemváros, Miskolc, H-3515, Hungary Cited By :2 Export Date: 25 October 2020 Correspondence Address: Falus, G.; Mining and Geological Survey of Hungary, Columbus u. 17-23, Hungary Geographical Institute, Research Centre for Astronomy and Earth Sciences, Budaörsi út 45, Budapest, H-1112, Hungary Mining and Geological Survey of Hungary, Columbus u. 17-23, Budapest, H-1145, Hungary Institute of Geography and Earth Sciences, Faculty of Science, Eötvös University, Pázmány Péter sétány 1/c, Budapest, H-1117, Hungary Institute of Geography and Geoinformatics, University of Miskolc, Egyetemváros, Miskolc, H-3515, Hungary Cited By :2 Export Date: 11 February 2021 Correspondence Address: Falus, G.; Mining and Geological Survey of Hungary, Columbus u. 17-23, Hungary Funding text 1: Acknowledgement: Support of the National Research, Development and Innovation Office NKFIH K131353, K120620, FK-128230 is gratefully acknowledged. The research was additionally supported by KEP-08. LA - English DB - MTMT ER - TY - JOUR AU - Xu, Tianfu AU - Zhu, Huixing AU - Feng, Guanhong AU - Yang, Zhijie AU - Tian, Hailong TI - Numerical simulation of calcite vein formation and its impact on caprock sealing efficiency – Case study of a natural CO2 reservoir JF - INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL J2 - INT J GREENH GAS CON VL - 83 PY - 2019 SP - 29 EP - 42 PG - 14 SN - 1750-5836 DO - 10.1016/j.ijggc.2019.01.021 UR - https://m2.mtmt.hu/api/publication/30432929 ID - 30432929 N1 - Cited By :4 Export Date: 25 October 2020 Correspondence Address: Tian, H.; Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin UniversityChina; email: thl@jlu.edu.cn LA - English DB - MTMT ER - TY - JOUR AU - Szabó-Krausz, Zsuzsanna AU - Gál, Nóra Edit AU - Kun, Éva AU - Szőcs, Teodóra AU - Falus, György TI - Accessing effects and signals of leakage from a CO2 reservoir to a shallow freshwater aquifer by reactive transport modelling. JF - ENVIRONMENTAL EARTH SCIENCES J2 - ENVIRON EARTH SCI VL - 77 PY - 2018 IS - 12 SN - 1866-6280 DO - 10.1007/s12665-018-7637-6 UR - https://m2.mtmt.hu/api/publication/3425458 ID - 3425458 N1 - Department of Hydrogeology and Geochemistry, Mining and Geological Survey of Hungary, Stefánia út 14, Budapest, 1143, Hungary MTA Premium Postdoctorate Research Program, Office of Funded Research Groups, Hungarian Academy of Sciences, Nádor u. 7, Budapest, 1051, Hungary Cited By :6 Export Date: 7 February 2023 Correspondence Address: Szabó, Z.; MTA Premium Postdoctorate Research Program, Nádor u. 7, Hungary; email: zsszabo86@gmail.com AB - CO2 geological storage is a transitional technology for the mitigation of climate change. In the vicinity of potential CO2 reservoirs in Hungary, protected freshwater aquifers used for drinking water supplies exist. Effects of disaster events of CO2 escape and brine displacement to one of these aquifers have been studied by kinetic 1D reactive transport modelling in PHREEQC. Besides verifying that ion concentrations in the freshwater may increase up to drinking water limit values in both scenarios (CO2 or brine leakage), total porosity of the rock is estimated. Pore volume is expected to increase at the entry point of CO2 and to decrease at further distances, whereas it shows minor increase along the flow path for the effect of brine inflow. Additionally, electrical conductivity of water is estimated and suggested to be the best parameter to measure for cost-effective monitoring of both worst-case leakage scenarios. Solution composition (left) and mineral reactions (right) on days 110 (top) and 330 (bottom) in kinetic 1D reactive transport model of the reference case, i.e. freshwater flow through freshwater aquifer. Solution composition (left) and mineral reactions (right) on days 110 (top) and 330 (bottom) in kinetic 1D reactive transport model of the reference case, i.e. freshwater flow through freshwater aquifer. … and follows Equation 2. and follows Equation 2. … Solution composition (left) and mineral reactions (right) on days 110 (top) and 330 (bottom) in kinetic 1D reactive transport model of CO 2 leakage scenario, i.e. CO 2 saturated freshwater flow through freshwater aquifer. Solution composition (left) and mineral reactions (right) on days 110 (top) and 330 (bottom) in kinetic 1D reactive transport model of CO 2 leakage scenario, i.e. CO 2 saturated freshwater flow through freshwater aquifer. … Solution composition (left) and mineral reactions (right) on days 110 (top) and 330 (bottom) in kinetic 1D reactive transport model of brine leakage scenario, i.e. 10% saline+90% freshwater mix flow through freshwater aquifer. Solution composition (left) and mineral reactions (right) on days 110 (top) and 330 (bottom) in kinetic 1D reactive transport model of brine leakage scenario, i.e. 10% saline+90% freshwater mix flow through freshwater aquifer. … Estimated total porosity change in the aquifer on days 110 (top) and 330 (bottom) based on a difference between kinetic 1D reactive transport model of the reference and that of CO 2 (left) and brine (right) leakage scenarios i.e. CO 2 saturated freshwater and 10% saline+90% freshwater mix flows through freshwater aquifer, respectively.+3 Estimated total porosity change in the aquifer on days 110 (top) and 330 (bottom) based on a difference between kinetic 1D reactive transport model of the reference and that of CO 2 (left) and brine (right) leakage scenarios i.e. CO 2 saturated freshwater and 10% saline+90% freshwater mix flows through freshwater aquifer, respectively. … Figures - uploaded by Zsuzsanna Szabó-Krausz LA - English DB - MTMT ER - TY - CHAP AU - Worden, R H AU - Armitage, P J AU - Butcher, A R AU - Churchill, J M AU - Csoma, A E AU - Hollis, C AU - Lander, R H AU - Omma, J E ED - Armitage, P J ED - Butcher, A R ED - Churchill, J M ED - Csoma, A E ED - Hollis, C ED - Lander, R H ED - Omma, J E ED - Worden, R H TI - Petroleum reservoir quality prediction: overview and contrasting approaches from sandstone and carbonate communities T2 - Reservoir quality of clastic and carbonate rocks: analysis, modelling and prediction PB - Geological Society of London CY - London SN - 9781786201393 T3 - Geological Society pecial publication ; 435. PB - Geological Society of London PY - 2018 SP - 1 EP - 31 PG - 31 DO - 10.1144/SP435.21 UR - https://m2.mtmt.hu/api/publication/27416229 ID - 27416229 LA - English DB - MTMT ER -