TY - JOUR AU - Hencz, Mátyás AU - Békési, Eszter AU - Patkó, Levente AU - Spránitz, Tamás AU - Hidas, Károly AU - Németh, Károly AU - Kovács, István János AU - Biró, Tamás AU - Sierd A.P.L.Cloetingh, Sierd A.P.L AU - Szabó, Csaba AU - Koptev, Alexander AU - Berkesi, Márta TI - Quantifying geological CO2 accumulation in the subcontinental lithospheric mantle during post-rift evolution of a sedimentary basin (Bakony-Balaton Highland Volcanic Field, Pannonian Basin, Central Europe) JF - GLOBAL AND PLANETARY CHANGE J2 - GLOBAL PLANET CHANGE VL - Special Issue Sedimentary Basins PY - 2026 SN - 0921-8181 DO - 10.1016/j.gloplacha.2026.105377 UR - https://m2.mtmt.hu/api/publication/36951914 ID - 36951914 LA - English DB - MTMT ER - TY - JOUR AU - Karátson, Dávid AU - Lahitte, Pierre AU - Portnyagin, Maxim AU - Palotai, Márton AU - Józsa, Sándor AU - Márton Péterné Szalay, Emőke AU - Tóth, Emőke AU - Erdei, Boglárka AU - Nomade, Sébastien AU - Németh, Károly AU - Iván, Levente AU - Krasznai, Márton AU - Vörös, Fanni AU - Biró, Tamás AU - Paquette, Jean-Louis AU - Hably, Lilla AU - Hír, János AU - Prakfalvi, Péter AU - Kiss, János AU - Pécskay, Zoltán AU - Frick, Daniel A. AU - Hencz, Mátyás TI - A 13.06 Ma widespread ignimbrite in the Pannonian Basin captured a snapshot of shallow marine to coastal environment in Central Paratethys JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 15 PY - 2025 IS - 1 SN - 2045-2322 DO - 10.1038/s41598-025-07002-9 UR - https://m2.mtmt.hu/api/publication/36229551 ID - 36229551 AB - Voluminous Miocene silicic volcanism sourced mainly from the extensional Pannonian Basin played a major role in the evolution of the Central Paratethys. Here, we identify a widely distributed (> 3150 km2) member of the Upper Rhyolite Tuff in Hungary, called the Dobi Ignimbrite, with a precise sanidine/plagioclase 40Ar/39Ar age of 13.064 ± 0.065 Ma (~ Badenian/Sarmatian boundary in Central Paratethys chronology). It has distinctive glass geochemistry with wide compositional variations, which conforms with large-scale silicic explosive eruptions. In line with this, the calculated minimum volume (~ 200 km3) of the Dobi Ignimbrite is consistent with a high-end VEI 7 eruption, with possible ultradistal transport distance of over 300 km. Most of the pyroclastic succession, which erupted in two phases, was emplaced on land, as it contains leaves and tree trunks in the basal layer that we correlate with the Badenian/Sarmatian ‘volcanic floras’ of northern Hungary. At the same time, the ignimbrite has a strongly phreatomagmatic character, and, together with the presence of free-floating foraminifera, this suggest that the source vent was located in coastal waters of the Central Paratethys. These findings indicate either a late Badenian marine incursion prior to the eruption, or the shift of the eruption center toward the sea. LA - English DB - MTMT ER - TY - CONF AU - Hencz, Mátyás AU - Németh, Károly AU - Spránitz, Tamás AU - Biró, Tamás AU - Karátson, Dávid AU - Berkesi, Márta TI - Paleogeographic control on eruption styles in a Miocene maar-diatreme: rock componentry analysis and detailed field work (Bakony- Balaton Highland Volcanic Field, Hungary) T2 - Abstract Book - Basalt 2025 PY - 2025 SP - 18 EP - 20 PG - 3 UR - https://m2.mtmt.hu/api/publication/36364597 ID - 36364597 LA - German DB - MTMT ER - TY - JOUR AU - Pérez-Orozco, Juan Daniel AU - Sosa-Ceballos, Giovanni AU - Biró, Tamás AU - Hencz, Mátyás AU - Macías, José Luis AU - Kovács, István János TI - Syn- and post-depositional thermal history of ignimbrites: insights from the structural hydroxyl defect content of quartz crystals from the Tecoloquillo ignimbrite, Acoculco Caldera Complex, Mexico JF - CONTRIBUTIONS TO MINERALOGY AND PETROLOGY J2 - CONTRIB MINERAL PETR VL - 180 PY - 2025 IS - 12 SN - 0010-7999 DO - 10.1007/s00410-025-02279-5 UR - https://m2.mtmt.hu/api/publication/36467911 ID - 36467911 AB - In this contribution, the structural hydroxyl-defect (OH) content of quartz crystals from the 0.8 ± 0.1 Ma Tecoloquillo Ignimbrite (TI) from the Acoculco Caldera Complex (Puebla, Mexico) was analyzed to examine syn- and post-depositional thermal history of ignimbrites. Pumice-hosted quartz crystals were examined from 5 zones of the TI representing various heights above the basal contact of the ignimbrite. To separate quartz crystal populations, unpolarized micro-FTIR on unoriented crystal fragments was performed to determine the OH-speciation as well as the structural hydroxyl-defect content. Additionally, Raman spectroscopy was used to identify the mineral inclusions of quartz crystals. Two populations of quartz were identified based on the structural hydroxyl-defect concentrations and mineral inclusions: a “hydrous” group with boron-related OH-content (BOH) with evidence of hydrothermal origin (containing abundant rutile needles) and another “anhydrous” group with the absence of any structural hydroxyl-defect content (as well as lack of BOH). The “hydrous” group showed a diffusion profile of BOH with a maximum gradient of 2.4 ± 0.65 wt ppm between the core and the rim of the crystals. The pre-eruptive temperatures of the TI were calculated using the composition of Fe-Ti oxides found in the pumice fragments. Results indicate a 720 ± 20 °C and 790 ± 20 °C temperature for the non-welded main mass (middle level) and 840 ± 30 °C for the welded lower ~ 25 m thick basal level. Based on the pre-eruptive temperatures, the syn- and post-depositional cooling history of the TI was estimated based on thermal modelling. According to the cooling model, the cooling time can reach up to 50 years in the middle level (slow cooling rate: ~3 − 8 °C/s or ~ 1 °C/yr). In spite of such high and long-lasting temperature, the thermal stability of BOH defects (under 600 °C) compared to the common AlOH defects in quartz crystals implies that the ignimbrite emplacement temperature was high enough to cause the total AlOH content to be lost from the quartz crystals, but not as high as the OH-content associated with boron to be diffusively lost. Thus, the structural hydroxyl-defect content of quartz represents a function of the thermal history of the deposit they are embedded in and that of the structural hydroxyl-defect speciation. This is the first study showing the significantly higher thermal stability of BOH structural hydroxyl-defects over AlOH structural hydroxyl-defects within quartz crystals originated from silicic ignimbrites. LA - English DB - MTMT ER - TY - JOUR AU - Hencz, Mátyás AU - Biró, Tamás AU - Németh, Károly AU - Szakács, Alexandru AU - Portnyagin, Maxim AU - Cseri, Zoltán AU - Pécskay, Zoltán AU - Szabó, Csaba AU - Müller, Samuel AU - Karátson, Dávid TI - Lithostratigraphy of the ignimbrite-dominated Miocene Bükk Foreland Volcanic Area (Central Europe) JF - JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH J2 - J VOLCANOL GEOTH RES VL - 445 PY - 2024 PG - 19 SN - 0377-0273 DO - 10.1016/j.jvolgeores.2023.107960 UR - https://m2.mtmt.hu/api/publication/34412174 ID - 34412174 AB - This study documents the volcanic evolution of the Miocene silicic Bükk Foreland Volcanic Area (BFVA), Northern Hungary (Central Europe) at an event-scale. The BFVA is a deeply eroded and dissected volcanic field dominated by multiple, several 10-m thick, valley-filling silicic ignimbrite units, which are chemically and texturally very similar to each other. Hence, establishing lateral correlation is a real challenge due to the sporadic and small-scale outcrops and lack of stratotypes. Detailed field observations allowed us to identify eleven lithological members including fourteen eruption events and establish a nearly complete lithostratigraphic correlation between fifteen outcrops across the BFVA. Primary pyroclastic material of each member was sampled, and volcanic glass was analyzed for major and trace element composition. The geochemical results confirm the field-based classification of the members and enable the correlation of distinct outcrops. The major and trace element composition of the glassy pyroclasts of each member of the BFVA served as basis to create a field-wide chemical reference database for regional correlational studies. Here, a new lithostratigraphic classification scheme consisting of one formation and eleven members is presented, which reflects the challenges unraveling the stratigraphy of ancient volcanic terrains. The field-based event-scale lithostratigraphy of the BFVA suggests a wet, partly sea-covered depositional environment in the close vicinity of the eruption centers providing favorable conditions to ‘fuel’ silicic explosive phreatomagmatism. On the contrary, paleosol horizons formed after almost each major eruption event or sequence suggests an overall near-coast terrestrial environment for the BFVA, where the emplacement of the pyroclastic material occurred. LA - English DB - MTMT ER - TY - JOUR AU - Hír, J AU - Biró, Tamás AU - Karátson, Dávid TI - Középső miocén szárazföldi gerinces faunadokumentáció Észak-Magyarországról és a Visegrádi-hegységből JF - FÖLDTANI KÖZLÖNY J2 - FÖLDTANI KÖZLÖNY VL - 154 PY - 2024 IS - 1 SP - 27 EP - 46 PG - 20 SN - 0015-542X DO - 10.23928/foldt.kozl.2024.154.1.27 UR - https://m2.mtmt.hu/api/publication/35087225 ID - 35087225 AB - Nineteen Middle Miocene (Badenian and Sarmatian) microvertebrate faunas were collected by the first author in quantities of several tons of samples in the Northern Hungary region and from the Visegrád Mountains in Transdanubia over the last two decades. Sample materials were washed and sieved using the sieve system of Daams & Freudenthal (1988). The study of these new faunas resulted in numerous taxonomic, paleobiogeographic and biochronologic conclusions (Hír 2020, Hír et al. 2016, 2017 and references therein), as well as lithostratigraphic and geochronologic results. The main purpose of this paper is to present and discuss the latter relationships. LA - English DB - MTMT ER - TY - JOUR AU - Hencz, Mátyás AU - Németh, Károly AU - Spránitz, Tamás AU - Biró, Tamás AU - Karátson, Dávid AU - Berkesi, Márta TI - Evolution and polycyclic nature of a maar-diatreme volcano as constrained by changing external factors JF - JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH J2 - J VOLCANOL GEOTH RES VL - 453 PY - 2024 PG - 19 SN - 0377-0273 DO - 10.1016/j.jvolgeores.2024.108158 UR - https://m2.mtmt.hu/api/publication/35164900 ID - 35164900 LA - English DB - MTMT ER - TY - CONF AU - Hencz, Mátyás AU - Németh, Károly AU - Spránitz, Tamás AU - Biró, Tamás AU - Karátson, Dávid AU - Berkesi, Márta ED - Piotr, Krzywiec ED - Ewa, Dqbrowska-Jedrusik ED - Monika, Masiak TI - Evolution of a maar-diatreme volcano within a sedimentary basin characterized by combined aquifer system T2 - 18th Workshop of the International Lithosphere Program Task Force Sedimentary Basins SN - 9788368224566 PY - 2024 SP - 30 EP - 30 PG - 1 UR - https://m2.mtmt.hu/api/publication/35740140 ID - 35740140 LA - English DB - MTMT ER - TY - CONF AU - Hencz, Mátyás AU - Németh, Károly AU - Spránitz, Tamás AU - Biró, Tamás AU - Karátson, Dávid AU - Berkesi, Márta ED - Buday, Tamás ED - Csámer, Árpád ED - McIntosh, Richard William ED - Molnár, Kata ED - Virág, Attila TI - Evolution and polycyclic nature of a maar-diatreme volcano as constrained by changing external factors T2 - Ahány kő, annyi történet.14. Kőzettani és Geokémiai Vándorgyűlés előadás- és poszterkivonatok PB - HUN-REN Atommagkutató Intézet C1 - Debrecen SN - 9789638321619 PY - 2024 SP - 49 EP - 49 PG - 1 UR - https://m2.mtmt.hu/api/publication/35742522 ID - 35742522 LA - English DB - MTMT ER - TY - CHAP AU - Tóth, Róbert Péter AU - Biró, Tamás TI - Magyarországi C-ITS megoldások a biztonságos közlekedésért T2 - II. Közlekedésbiztonsági Konferencia PB - Széchenyi István Egyetem Közlekedési Tanszék CY - Győr SN - 9786156443335 PY - 2024 SP - 118 EP - 129 PG - 12 UR - https://m2.mtmt.hu/api/publication/36113284 ID - 36113284 AB - A C-ITS (együttműködő intelligens közlekedési rendszer) számos különböző szolgáltatással járul hozzá a közlekedés biztonságosabbá, hatékonyabbá és gazdaságosabbá tételéhez, valamint az energiafelhasználás és környezeti terhelés csökkentéséhez. A főbb rendszerelemek (központi oldali infrastruktúra, útmenti infrastruktúra, járművön belüli infrastruktúra) közötti, nemzetközi szabványokra épülő kétirányú kommunikációnak és adatcserének köszönhetően valós idejű, pontos forgalmi információk juttathatók el közvetlenül a járművekbe, illetve a járművek felől is részletes adatok fogadhatók. A gyorsforgalmi közlekedésre szabott funkciók Magyarország nyugati felében jelenleg több autópályán és autóúton, a városi környezetben működő funkciók Budapest, Győr és Zalaegerszeg városában érhetők el. A funkciók között megtalálhatók például balesetekre, munkavégzésre, torlódásra és védtelen közlekedőkre vonatkozó figyelmeztetések, valamint a jelzőlámpás csomópontokon történő biztonságos és hatékony átkelést támogató üzenetek is. Zalaegerszegen kísérleti jelleggel kiépült egy dedikált járművek előnyben részesítését megvalósító rendszer, valamint egy védtelen úthasználók biztonságát szolgáló kísérleti rendszer is. A járművek felől érkező CAM (Cooperative Awareness Message) üzenetek számos olyan attribútumot tartalmaznak, amelyek mérése a jelenleg használt szenzorokkal (hurokdetektorok, kamerák, stb.) nehezen, vagy csak pontszerűen valósítható meg, valamint olyan adatok is elérhetővé válnak, amelyek korábban nem voltak hozzáférhetők. A C-ITS rendszer nyújtotta lehetőségek forgalomirányításban történő kihasználása jelentősen hozzájárul a közútkezelők proaktívvá, hosszú távon pedig prediktívvé válásához. LA - Hungarian DB - MTMT ER -