TY - CHAP AU - Unger, Zoltán AU - Polgári, Márta AU - Gyollai, Ildikó AU - Bérzi, Szaniszló ED - Hargitai, Henrik TI - Mars felfedező. Zsebatlasz és Almanach a 37. Mars évre TS - Zsebatlasz és Almanach a 37. Mars évre T2 - Mars felfedező PB - Hargitai Henrik e.v. CY - Budapest SN - 9786150162522 PY - 2023 UR - https://m2.mtmt.hu/api/publication/34643494 ID - 34643494 N1 - Kőgombócók a Marson (7.187.o.) LA - Hungarian DB - MTMT ER - TY - JOUR AU - Unger, Zoltán TI - The Importance of Clathrates in the Karst processes. Theoretical Considerations on the Analogy of Methane Hydrates TS - Theoretical Considerations on the Analogy of Methane Hydrates JF - INTERNATIONAL JOURNAL OF ENGINEERING AND SCIENCE INVENTION J2 - INT J ENG SCI INVENT VL - 12 PY - 2023 IS - 11 SP - 21 EP - 25 PG - 4 SN - 2319-6726 DO - 10.35629/6734-12112125 UR - https://m2.mtmt.hu/api/publication/34506741 ID - 34506741 AB - The clathrates are generally known as methane hydrates and are results of the thermodynamic processes, when a guest molecule is trapped in the frozen ice cage. In the case of the methane hydrates the methane as a non-polar molecule is trapped by the frozen ice in deep sea environment. The cages are formed by several polar water molecules with hydrogen bond. These are also formed and documented in the permafrost zone. The guest non-polar molecules are not only methane in clathrates, but several other molecules like CO2and SO2. In the case of glaciokarst when the ice melts, these guest molecules release and may generate a more aggressive water. These acidic waters can be responsible in the for the intensive karstic processes, in cave generation. LA - English DB - MTMT ER - TY - JOUR AU - Veress, Márton AU - Unger, Zoltán TI - Potential Impacts of Zone-Specific Mining on Karst JF - Acadlore Transactions on Geosciences J2 - ATG VL - 2 PY - 2023 IS - 4 SP - 208 EP - 214 PG - 7 SN - 2958-1869 DO - 10.56578/atg020403 UR - https://m2.mtmt.hu/api/publication/34436504 ID - 34436504 LA - English DB - MTMT ER - TY - JOUR AU - Veress, Márton AU - Unger, Zoltán AU - Vetési-Foith, Szilárd TI - Anthropogenic Pseudokarstic Depressions on Mount Bocskor (Bakony Region, Hungary) JF - JOURNAL OF EARTH SCIENCE J2 - J EARTH SCI VL - 34 PY - 2023 IS - 1 SP - 214 EP - 231 PG - 18 SN - 1674-487X DO - 10.1007/s12583-021-1506-z UR - https://m2.mtmt.hu/api/publication/33638484 ID - 33638484 LA - English DB - MTMT ER - TY - CONF AU - Unger, Zoltán AU - LeClair, David TI - Should we rethink the model for the Transylvanian basin? T2 - AAPG Europe Regional Conference 2022: Revitalizing Old Fields and Energy Transition in Mature Basins C1 - Budapest PY - 2022 UR - https://m2.mtmt.hu/api/publication/33769887 ID - 33769887 AB - “The history of exploration shows abundant evidence that new data, new concepts and new interpretations can lead to the discovery of new plays and new prospects in mature basins.” The opening message on the Beicip homepage is a premise we can confirm from our experience, particularly for the Transylvanian Basin (Romania) as a mature gas province. Traditionally, the origin of pure methane reserves has been attributed to the classical biodegradation of organic material (i.e. from the sedimentary sequence of the basin). However, the gas reserves of the Transylvanian Basin highly exceed the quantity of gas normally furnished by this source. Therefore, we state that other gas sources must exist besides the traditionally accepted one (Unger & LeClair 2016). We propose two new ideas to explain and explore the increase of the reserve potential in the basin: The idea of parallel salt and methane generation presents potential for new discoveries in the basin (Unger & LeClair 2018). The dissociation of Middle and Late Miocene methane hydrates can also generate new discoveries of methane (Unger & LeClair &Györfi 2022). The Black Sea Basin can be viewed as a modern analogy of the phenomena that occurred in the Transylvanian Basin, as proved by the existence and generation of methane hydrates (Radu Gh. & Sandu V., 2015). The deep-sea salt generation idea, first mentioned by Krézsek et al (2010) and developed by Unger & LeClair (2018), creates the necessity to revise the present basin model scenario. The new view excludes the desiccation, fast subsidence phase of the Transylvanian basin during the Middle Badenian (Unger & LeClair 2022). As a result, this approach will open the way to substantiating new discoveries for the remaining HC-potential. LA - English DB - MTMT ER - TY - JOUR AU - Unger, Zoltán AU - D., LeClair, AU - I., Györfi, TI - Investigation of Miocene Methane Hydrate Generation Potential in the Transylvanian Basin, Romania JF - Advances in Geological and Geotechnical Engineering Research J2 - adv. in geol. and geotech. eng. res. VL - 4 PY - 2022 IS - 2 SP - 1 SN - 2810-9384 DO - 10.30564/agger.v4i2.4413 UR - https://m2.mtmt.hu/api/publication/32766036 ID - 32766036 LA - English DB - MTMT ER - TY - CONF AU - Unger, Zoltán AU - Deák, György TI - A klatrátok jelentősége a karsztosodás folyamatában T2 - 17. Téli Ásványtudományi Iskola PY - 2022 SP - & UR - https://m2.mtmt.hu/api/publication/32681030 ID - 32681030 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Unger, Zoltán AU - D., LeClair TI - Review of the Ochsenius Theory for Salt Generation in the Transylvanian Basin, Romania JF - Advances in Geological and Geotechnical Engineering Research J2 - adv. in geol. and geotech. eng. res. VL - 4 PY - 2022 IS - 1 SP - 28 SN - 2810-9384 DO - 10.30564/agger.v4i1.4307 UR - https://m2.mtmt.hu/api/publication/32680997 ID - 32680997 LA - English DB - MTMT ER - TY - JOUR AU - Unger, Zoltán TI - A Feleki konkréciók új képződési modellje JF - ÉLET ÉS TUDOMÁNY J2 - ÉLET ÉS TUDOMÁNY VL - 25 PY - 2021 SP - 780 EP - 783 PG - 4 SN - 0013-6077 UR - https://m2.mtmt.hu/api/publication/32681042 ID - 32681042 LA - Hungarian DB - MTMT ER - TY - CONF AU - Unger, Zoltán AU - David, LeClair ED - Puskás, János TI - Felületi jelenségek és a fordított ozmózis nyomás kapcsolata T2 - XV. Regionális Természettudományi Konferencia PROGRAM ÉS AZ ELŐADÁSOK ÖSSZEFOGLALÓI PB - ELTE Savaria Egyetemi Központ C1 - Szombathely PY - 2020 SP - 20 UR - https://m2.mtmt.hu/api/publication/32076968 ID - 32076968 LA - Hungarian DB - MTMT ER -