TY - JOUR AU - Demény, Attila AU - Berentés, A AU - Rinyu, László AU - Kovács, Ivett AU - Surányi, Gergely AU - Virág, Magdolna TI - Subaqueous carbonate speleothems as paleotemperature archives – clumped isotope thermometry and stable isotope compositions of inclusion-hosted wate JF - INTERNATIONAL JOURNAL OF SPELEOLOGY J2 - INT J SPELEOL VL - 53 PY - 2024 IS - 1 SP - 25 EP - 37 PG - 13 SN - 0392-6672 DO - 10.5038/1827-806X.53.1.2480 UR - https://m2.mtmt.hu/api/publication/34659670 ID - 34659670 N1 - Funding Agency and Grant Number: Balaton Uplands National Park [102-2/2022]; Eotvos Lorand Research Network; European Union [GINOP-2.3.2-15-2016-00009 'ICER']; Hungarian State; European Regional Development Fund; [SA-41/2021] Funding text: The sampling conducted for this study in Berger Karoly Cave was permitted by the directorate of the Balaton Uplands National Park (No. 102-2/2022) . Rezso Szilaj and Denes Szieberth provided essential help during sampling in Berger Karoly and Molnar Janos caves, respectively. The authors are indebted to Ariana Gugora for polishing the English of the manuscript. Constructive reviews and helpful comments of three anonymous reviewers, and the editorial handling by Bogdan P. Onac are gratefully thanked. The study was financed by the Eotvos Lorand Research Network (projects SA-41/2021; ELKH KEP-1/2020) . The clumped isotope facility of the Institute for Nuclear Research was supported by the European Union and the Hungarian State, co -financed by the European Regional Development Fund in the project of GINOP-2.3.2-15-2016-00009 'ICER'. LA - English DB - MTMT ER - TY - JOUR AU - Balázs, László AU - Nyitrai, Gábor AU - Surányi, Gergely AU - Hamar, Gergő AU - Barnaföldi, Gergely Gábor AU - Varga, Dezső TI - 3D Muographic Inversion in the Exploration of Cavities and Low-density Fractured Zones JF - GEOPHYSICAL JOURNAL INTERNATIONAL J2 - GEOPHYS J INT VL - 236 PY - 2024 IS - 1 SP - 700 EP - 710 PG - 11 SN - 0956-540X DO - 10.1093/gji/ggad428 UR - https://m2.mtmt.hu/api/publication/34317845 ID - 34317845 N1 - Wigner Research Center for Physics, Konkoly-Th. M. u. 29-33, Budapest, 1121, Hungary Department of Geophysics and Space Science, Eötvös Loránd University, Pázmány P. s. 1/C, Budapest, 1117, Hungary Budapest University of Technology and Economics, Institute of Nuclear Techniques, Műegyetem rkp. 9, Budapest, 1111, Hungary Export Date: 10 January 2024 AB - Muography is an imaging tool based on the attenuation of cosmic muons for observing density anomalies associated with large objects, such as underground caves or fractured zones. Tomography based on muography measurements, that is, three dimensional reconstruction of density distribution from two dimensional muon flux maps, brings along special challenges. The detector field of view covering must be as balanced as possible, considering the muon flux drop at high zenith angles and the detector placement possibilities. The inversion from directional muon fluxes to a 3D density map is usually underdetermined (more voxels than measurements). Therefore, the solution of the inversion can be unstable due to partial coverage. The instability can be solved by geologically relevant Bayesian constraints. However, the Bayesian principle results in parameter bias and artifacts. In this work, linearized (density-length based) inversion is applied by formulating the constraints associated with inversion to ensure the stability of parameter fitting. After testing the procedure on synthetic examples, an actual high-quality muography measurement data set from 7 positions is used as input for the inversion. The resulting tomographic imaging provides details on the complicated internal structures of karstic fracture zone. The existence of low density zones in the imaged space was verified by samples from core drills, which consist of altered dolomite powder within the intact high density dolomite. LA - English DB - MTMT ER - TY - JOUR AU - Demény, Attila AU - Czuppon, György AU - Kern, Zoltán AU - Hatvani, István Gábor AU - Topál, Dániel AU - Karlik, Máté AU - Surányi, Gergely AU - Molnár, Mihály AU - Kiss, Gabriella Ilona AU - Szabó, Máté Zoltán AU - Shen, CC AU - Hu, HM AU - May, Zoltán TI - A speleothem record of seasonality and moisture transport around the 8.2 ka event in Central Europe (Vacska Cave, Hungary) JF - QUATERNARY RESEARCH J2 - QUATERNARY RES VL - 118 PY - 2024 SP - 195 EP - 210 PG - 16 SN - 0033-5894 DO - 10.1017/qua.2023.33 UR - https://m2.mtmt.hu/api/publication/34082661 ID - 34082661 N1 - Published online: 28 July 2023 LA - English DB - MTMT ER - TY - CONF AU - Czuppon, György AU - Demény, Attila AU - Karlik, Máté AU - Siklósy, Zoltán AU - Leél-Őssy, Szabolcs AU - Óvári, Mihály AU - Surányi, Gergely AU - Molnár, M AU - Lin, K AU - Shen, CC ED - Bojar, AV ED - Tichy, G ED - Bojar, HP ED - Moser, B ED - Wojtowicz, A ED - Pelc, A ED - Neubauer, F TI - The “overshoot” following 8.2 ky event recorded in speleothem from Béke Cave (NE Hungary) T2 - European Society for Isotope Research Meeting XVI (ESIR) PY - 2023 SP - 29 EP - 30 PG - 2 UR - https://m2.mtmt.hu/api/publication/34546173 ID - 34546173 LA - English DB - MTMT ER - TY - CHAP AU - Sebe, Krisztina AU - Bauer, Márton AU - Surányi, Gergely AU - Novothny, Ágnes AU - Csillag, Gábor AU - Ruszkiczay-Rüdiger, Zsófia ED - Kisbenedek, Tibor ED - Morvai, Anita TI - Karsztfejlődés a Nyugat-Mecsekben: geomorfológia, kronológia, emelkedéstörténet T2 - Baranyai Barlangkutatás Konferencia : „Rónaki László-emlékkonferencia” PB - Janus Pannonius Múzeum CY - Pécs SN - 9789639873575 PY - 2023 SP - 24 EP - 25 PG - 2 UR - https://m2.mtmt.hu/api/publication/34396990 ID - 34396990 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Sebe, Krisztina AU - Gasparik, Mihály AU - Szentesi, Zoltán AU - Surányi, Gergely AU - Novothny, Ágnes AU - Pandolfi, Luca TI - New Pleistocene vertebrate assemblages from the Villány Hills (SW Hungary): Siklós and Palkonya JF - FRAGMENTA PALAEONTOLOGICA HUNGARICA J2 - FRAGM PALAEONTOL HUNG VL - 38 PY - 2023 SP - 75 EP - 94 PG - 20 SN - 1586-930X DO - 10.17111/FragmPalHung.2023.38.75 UR - https://m2.mtmt.hu/api/publication/34134323 ID - 34134323 AB - The Villány Hills in SW Hungary have the richest archive of Pliocene–Quaternary vertebrate faunas in the Pannonian Basin, mostly in karstic cavities. Here we present three new sites that extend the list of Pleistocene vertebrate locations for the area and add information to the evolution history of the region. In the northern part of the Siklós quarry, bone breccia was found coming from fissures in Jurassic or Cretaceous limestones. Its lithofacies and fossil content are similar to those of other well-known Plio-Pleistocene karst infills of the region. As it contained mostly snake vertebrae, its age could not be constrained precisely. In the southern part of the same quarry, two vertical shaft s were discovered, which are unusual in several respects. Th ey formed in a Middle Triassic dolomite succession, a rock type generally not prone to karstification. Th ey might have been created by gravitational deformation of the relatively steep slope, probably at diff erent times. One of them was closed from above and contained fl owstones precipitated during the late Middle Pleistocene, during the late Rissian MIS7 interglacial. The other one was filled from above with loess, rock fragments and remains of large mammals – Equus cf. ferus, Bos primigenius and Coelodonta antiquitatis –, possibly between 140–40 ka, during one of the stadials of the Weichselian or the latest Saalian. The site shows that fossil-bearing cavities could also form in lithologies not favourable for karstification, which then trapped fossils in a similar way karstic cavities do. In contrast with the previous two and with most of the other known vertebrate sites of the Villány Hills, the Palkonya outcrop is not a karst cavity fill but was deposited on the (palaeo)surface. Bison sp., possibly B. schoetensacki remains were found between the Triassic basement and Quaternary slope sediments, and within the latter succession. The Bison bones are probably Middle Pleistocene or late Early Pleistocene, older than ~300 ka. The overlying slope sediments originate from the reworking of various older deposits. Th ey were covered with loess in the Weichselian (~22 ka ago), then again with slope deposits. The abundance of bones in and around the outcrop suggests that this site acted as a fossil trap as well. Bones probably enriched in the sediments during reworking of older deposits. In cold periods, loess deposition decreased (subdued) the relief through infilling the depressions. With 21 figures and 3 tables. LA - English DB - MTMT ER - TY - GEN AU - Novothny, Ágnes AU - Sipos, György AU - Újvári, Gábor AU - Filyó, Dávid AU - Surányi, Gergely AU - Végh, Tamás AU - Csonka, Diána AU - Bartyik, Tamás AU - Magyar, G AU - Horváth, Erzsébet TI - High resolution luminescence dating of the Süttő loess-paleosol sequence (MIS 6-2), Hungary: age depth model and mass accumulation rates. Session 85: Loess and dust deposits: beyond local studies TS - Session 85: Loess and dust deposits: beyond local studies PY - 2023 UR - https://m2.mtmt.hu/api/publication/34080452 ID - 34080452 N1 - Submission type: poster LA - English DB - MTMT ER - TY - CONF AU - Újvári, Gábor AU - Bernasconi, SM AU - Stevens, T AU - Kele, Sándor AU - Páll-Gergely, Barna AU - Surányi, Gergely AU - Demény, Attila TI - Temperature response in East Central Europe to North Atlantic interstadial warming over the 26-31 ka period. Session 18: Dansgaard-Oechger events in climate models and the real world TS - Session 18: Dansgaard-Oechger events in climate models and the real world T2 - INQUA ROMA 2023 PY - 2023 UR - https://m2.mtmt.hu/api/publication/34080436 ID - 34080436 N1 - Submission type: poster LA - English DB - MTMT ER - TY - JOUR AU - Oláh, László AU - Balázs, László AU - Barnaföldi, Gergely Gábor AU - Galgóczi, Gábor AU - Gera, Ádám László AU - Hamar, Gergő AU - Nyitrai, Gábor AU - Surányi, Gergely AU - Tanaka, Hiroyuki K. M. AU - Varga, Dezső TI - Földtudományi kutatások és geotechnikai alkalmazások kozmikus müonok mérésével JF - MAGYAR GEOFIZIKA J2 - MAGYAR GEOFIZIKA VL - 62 PY - 2022 IS - 4 SP - 225 EP - 241 PG - 17 SN - 0025-0120 UR - https://m2.mtmt.hu/api/publication/34127755 ID - 34127755 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Hamar, Gergő AU - Surányi, Gergely AU - Varga, Dezső AU - Balogh, Szabolcs József AU - Nyitrai, Gábor AU - Molnár, Gábor AU - Gera, Ádám László AU - Galgóczi, Gábor AU - Barnaföldi, Gergely Gábor ED - GAUCHON, Ch. ED - JAILLET, S. ED - BALLESTEROS, D. ED - HONIAT, Ch. ED - GENUITE, K. ED - RACINE, T. TI - Cavity Location by Muon Tomography T2 - Proceedings of the 18th International Congress of Speleology PB - Association française de karstologie CY - [s.l.] SN - 9782741706960 T3 - Karstologia mémoires ; 26. PY - 2022 SP - 119 EP - 122 PG - 4 UR - https://m2.mtmt.hu/api/publication/34127672 ID - 34127672 LA - English DB - MTMT ER -