@article{MTMT:34659670, title = {Subaqueous carbonate speleothems as paleotemperature archives – clumped isotope thermometry and stable isotope compositions of inclusion-hosted wate}, url = {https://m2.mtmt.hu/api/publication/34659670}, author = {Demény, Attila and Berentés, A and Rinyu, László and Kovács, Ivett and Surányi, Gergely and Virág, Magdolna}, doi = {10.5038/1827-806X.53.1.2480}, journal-iso = {INT J SPELEOL}, journal = {INTERNATIONAL JOURNAL OF SPELEOLOGY}, volume = {53}, unique-id = {34659670}, issn = {0392-6672}, year = {2024}, eissn = {1827-806X}, pages = {25-37}, orcid-numbers = {Demény, Attila/0000-0003-0522-9018; Kovács, Ivett/0000-0001-7015-7909; Virág, Magdolna/0000-0001-6104-1963} } @article{MTMT:34317845, title = {3D Muographic Inversion in the Exploration of Cavities and Low-density Fractured Zones}, url = {https://m2.mtmt.hu/api/publication/34317845}, author = {Balázs, László and Nyitrai, Gábor and Surányi, Gergely and Hamar, Gergő and Barnaföldi, Gergely Gábor and Varga, Dezső}, doi = {10.1093/gji/ggad428}, journal-iso = {GEOPHYS J INT}, journal = {GEOPHYSICAL JOURNAL INTERNATIONAL}, volume = {236}, unique-id = {34317845}, issn = {0956-540X}, abstract = {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.}, year = {2024}, eissn = {1365-246X}, pages = {700-710}, orcid-numbers = {Balázs, László/0000-0003-1544-5734; Varga, Dezső/0000-0002-2450-1331} } @article{MTMT:34082661, title = {A speleothem record of seasonality and moisture transport around the 8.2 ka event in Central Europe (Vacska Cave, Hungary)}, url = {https://m2.mtmt.hu/api/publication/34082661}, author = {Demény, Attila and Czuppon, György and Kern, Zoltán and Hatvani, István Gábor and Topál, Dániel and Karlik, Máté and Surányi, Gergely and Molnár, Mihály and Kiss, Gabriella Ilona and Szabó, Máté Zoltán and Shen, CC and Hu, HM and May, Zoltán}, doi = {10.1017/qua.2023.33}, journal-iso = {QUATERNARY RES}, journal = {QUATERNARY RESEARCH}, volume = {118}, unique-id = {34082661}, issn = {0033-5894}, year = {2024}, eissn = {1096-0287}, pages = {195-210}, orcid-numbers = {Demény, Attila/0000-0003-0522-9018; Czuppon, György/0000-0002-7231-6042; Kern, Zoltán/0000-0003-4900-2587; Hatvani, István Gábor/0000-0002-9262-7315} } @CONFERENCE{MTMT:34546173, title = {The “overshoot” following 8.2 ky event recorded in speleothem from Béke Cave (NE Hungary)}, url = {https://m2.mtmt.hu/api/publication/34546173}, author = {Czuppon, György and Demény, Attila and Karlik, Máté and Siklósy, Zoltán and Leél-Őssy, Szabolcs and Óvári, Mihály and Surányi, Gergely and Molnár, M and Lin, K and Shen, CC}, booktitle = {European Society for Isotope Research Meeting XVI (ESIR)}, unique-id = {34546173}, year = {2023}, pages = {29-30}, orcid-numbers = {Czuppon, György/0000-0002-7231-6042; Demény, Attila/0000-0003-0522-9018} } @{MTMT:34396990, title = {Karsztfejlődés a Nyugat-Mecsekben: geomorfológia, kronológia, emelkedéstörténet}, url = {https://m2.mtmt.hu/api/publication/34396990}, author = {Sebe, Krisztina and Bauer, Márton and Surányi, Gergely and Novothny, Ágnes and Csillag, Gábor and Ruszkiczay-Rüdiger, Zsófia}, booktitle = {Baranyai Barlangkutatás Konferencia : „Rónaki László-emlékkonferencia”}, unique-id = {34396990}, year = {2023}, pages = {24-25}, orcid-numbers = {Sebe, Krisztina/0000-0002-4647-2199; Novothny, Ágnes/0000-0003-3513-0406} } @article{MTMT:34134323, title = {New Pleistocene vertebrate assemblages from the Villány Hills (SW Hungary): Siklós and Palkonya}, url = {https://m2.mtmt.hu/api/publication/34134323}, author = {Sebe, Krisztina and Gasparik, Mihály and Szentesi, Zoltán and Surányi, Gergely and Novothny, Ágnes and Pandolfi, Luca}, doi = {10.17111/FragmPalHung.2023.38.75}, journal-iso = {FRAGM PALAEONTOL HUNG}, journal = {FRAGMENTA PALAEONTOLOGICA HUNGARICA}, volume = {38}, unique-id = {34134323}, issn = {1586-930X}, abstract = {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.}, year = {2023}, pages = {75-94}, orcid-numbers = {Sebe, Krisztina/0000-0002-4647-2199; Szentesi, Zoltán/0000-0002-7019-5478; Novothny, Ágnes/0000-0003-3513-0406} } @misc{MTMT:34080452, title = {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}, url = {https://m2.mtmt.hu/api/publication/34080452}, author = {Novothny, Ágnes and Sipos, György and Újvári, Gábor and Filyó, Dávid and Surányi, Gergely and Végh, Tamás and Csonka, Diána and Bartyik, Tamás and Magyar, G and Horváth, Erzsébet}, unique-id = {34080452}, year = {2023}, orcid-numbers = {Novothny, Ágnes/0000-0003-3513-0406; Sipos, György/0000-0001-6224-2361; Újvári, Gábor/0000-0002-2816-6155; Végh, Tamás/0000-0001-8476-3686; Csonka, Diána/0000-0002-2318-6720; Horváth, Erzsébet/0000-0002-0197-4152} } @CONFERENCE{MTMT:34080436, title = {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}, url = {https://m2.mtmt.hu/api/publication/34080436}, author = {Újvári, Gábor and Bernasconi, SM and Stevens, T and Kele, Sándor and Páll-Gergely, Barna and Surányi, Gergely and Demény, Attila}, booktitle = {INQUA ROMA 2023}, unique-id = {34080436}, year = {2023}, orcid-numbers = {Újvári, Gábor/0000-0002-2816-6155; Kele, Sándor/0000-0002-8607-7636; Páll-Gergely, Barna/0000-0002-6167-7221; Demény, Attila/0000-0003-0522-9018} } @article{MTMT:34127755, title = {Földtudományi kutatások és geotechnikai alkalmazások kozmikus müonok mérésével}, url = {https://m2.mtmt.hu/api/publication/34127755}, author = {Oláh, László and Balázs, László and Barnaföldi, Gergely Gábor and Galgóczi, Gábor and Gera, Ádám László and Hamar, Gergő and Nyitrai, Gábor and Surányi, Gergely and Tanaka, Hiroyuki K. M. and Varga, Dezső}, journal-iso = {MAGYAR GEOFIZIKA}, journal = {MAGYAR GEOFIZIKA}, volume = {62}, unique-id = {34127755}, issn = {0025-0120}, year = {2022}, eissn = {2677-1497}, pages = {225-241}, orcid-numbers = {Balázs, László/0000-0003-1544-5734; Varga, Dezső/0000-0002-2450-1331} } @inproceedings{MTMT:34127672, title = {Cavity Location by Muon Tomography}, url = {https://m2.mtmt.hu/api/publication/34127672}, author = {Hamar, Gergő and Surányi, Gergely and Varga, Dezső and Balogh, Szabolcs József and Nyitrai, Gábor and Molnár, Gábor and Gera, Ádám László and Galgóczi, Gábor and Barnaföldi, Gergely Gábor}, booktitle = {Proceedings of the 18th International Congress of Speleology}, unique-id = {34127672}, year = {2022}, pages = {119-122} }