TY - JOUR AU - Heszler, Bernát AU - Katchinoff, Joachim AU - Palcsu, László AU - Horváth, Anikó AU - Vallner, Zsolt AU - Kovács, Emma Blanka AU - Planavsky, Noah AU - Pálfy, József TI - Marine Strontium Isotope Evolution at the Triassic‐Jurassic Transition Links Transient Changes in Continental Weathering to Volcanism of the Central Atlantic Magmatic Province JF - GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS J2 - GEOCHEM GEOPHY GEOSY VL - 25 PY - 2024 IS - 3 SN - 1525-2027 DO - 10.1029/2024GC011464 UR - https://m2.mtmt.hu/api/publication/34746792 ID - 34746792 N1 - Department of Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University, Budapest, Hungary School of Earth Sciences, University of Bristol, Bristol, United Kingdom Department of Earth and Planetary Sciences, Yale University, New Haven, CT, United States Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research, Debrecen, Hungary Department of Geology and Meteorology, University of Pécs, Pécs, Hungary Department of Geology and Earth Surface Research Laboratory (ESRL), Trinity College Dublin, The University of Dublin, College Green, Dublin 2, Ireland HUN-REN-MTM-ELTE Research Group for Paleontology, Budapest, Hungary Export Date: 26 March 2024 Correspondence Address: Heszler, B.; Department of Geology, Hungary; email: bernat.heszler@bristol.ac.uk Correspondence Address: Pálfy, J.; Department of Geology, Hungary; email: palfy@elte.hu AB - The end‐Triassic extinction (ETE) is one of the most severe biotic crises in the Phanerozoic. This event was synchronous with volcanism of the Central Atlantic Magmatic Province (CAMP), the ultimate cause of the extinction and related environmental perturbations. However, the continental weathering response to CAMP‐induced warming remains poorly constrained. Strontium isotope stratigraphy is a powerful correlation tool that can also provide insights into the changes in weathering regime, but the scarcity of 87 Sr/ 86 Sr data across the Triassic‐Jurassic boundary (TJB) hindered the use of this method. Here we present new high‐resolution 87 Sr/ 86 Sr data from bulk carbonates at Csővár, a continuous marine section that spans 2.5 Myrs across the TJB. We document a continuing decrease in 87 Sr/ 86 Sr ratio from the late Rhaetian to the ETE, terminated by a 300 kyr interval of a flat trend and followed by a transient increase in the early Hettangian that levels off. We suggest that the first in the series of perturbations is linked to the influx of non‐radiogenic Sr from the weathering of freshly erupted CAMP basalts, leading to a delay in the radiogenic continental weathering response. The subsequent rise in 87 Sr/ 86 Sr after the TJB is explained by intensified continental crustal weathering from elevated CO 2 levels and reduced mantle‐derived Sr flux. Using Sr flux modeling, we also find support for such multiphase, prolonged continental weathering scenarios. Aggregating the new data set with published records employing an astrochronological age model results in a highly resolved Sr isotope reference curve for an 8.5 Myr interval around the TJB. LA - English DB - MTMT ER - TY - CHAP AU - Dénes, D AU - Vallner, Zsolt AU - Demény, Attila AU - Kovács, Zs AU - Pálfy, József ED - Bosnakoff, Mariann ED - Szives, Ottilia ED - Főzy, István TI - AZ ALSÓ JURA PISZNICEI MÉSZKŐ FORMÁCIÓ INTEGRÁLT SZTRATIGRÁFIÁJA A TATAI KÁLVÁRIA-DOMBON T2 - 26. Magyar Őslénytani Vándorgyűlés PB - Magyarhoni Földtani Társulat CY - Budapest SN - 9789638221865 PY - 2023 SP - 12 EP - 13 PG - 2 UR - https://m2.mtmt.hu/api/publication/34450455 ID - 34450455 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Hesselbo, Stephen P. AU - Al-Suwaidi, Aisha AU - Baker, Sarah J. AU - Ballabio, Giorgia AU - Belcher, Claire M. AU - Bond, Andrew AU - Boomer, Ian AU - Bos, Remco AU - Bjerrum, Christian J. AU - Bogus, Kara AU - Boyle, Richard AU - Browning, James V. AU - Butcher, Alan R. AU - Condon, Daniel J. AU - Copestake, Philip AU - Daines, Stuart AU - Dalby, Christopher AU - Damaschke, Magret AU - Damborenea, Susana E. AU - Deconinck, Jean-Francois AU - Dickson, Alexander J. AU - Fendley, Isabel M. AU - Fox, Calum P. AU - Fraguas, Angela AU - Frieling, Joost AU - Gibson, Thomas A. AU - He, Tianchen AU - Hickey, Kat AU - Hinnov, Linda A. AU - Hollaar, Teuntje P. AU - Huang, Chunju AU - Hudson, Alexander J. L. AU - Jenkyns, Hugh C. AU - Idiz, Erdem AU - Jiang, Mengjie AU - Krijgsman, Wout AU - Korte, Christoph AU - Leng, Melanie J. AU - Lenton, Timothy M. AU - Leu, Katharina AU - Little, Crispin T. S. AU - MacNiocaill, Conall AU - Manceñido, Miguel O. AU - Mather, Tamsin A. AU - Mattioli, Emanuela AU - Miller, Kenneth G. AU - Newton, Robert J. AU - Page, Kevin N. AU - Pálfy, József AU - Pieńkowski, Gregory AU - Porter, Richard J. AU - Poulton, Simon W. AU - Riccardi, Alberto C. AU - Riding, James B. AU - Roper, Ailsa AU - Ruhl, Micha AU - Silva, Ricardo L. AU - Storm, Marisa S. AU - Suan, Guillaume AU - Szűcs, Dominika AU - Thibault, Nicolas AU - Uchman, Alfred AU - Stanley, James N. AU - Ullmann, Clemens V. AU - van de Schootbrugge, Bas AU - Vickers, Madeleine L. AU - Wadas, Sonja AU - Whiteside, Jessica H. AU - Wignall, Paul B. AU - Wonik, Thomas AU - Xu, Weimu AU - Zeeden, Christian AU - Zhao, Ke TI - Initial results of coring at Prees, Cheshire Basin, UK (ICDP JET project): towards an integrated stratigraphy, timescale, and Earth system understanding for the Early Jurassic JF - SCIENTIFIC DRILLING J2 - SCI DRIL VL - 32 PY - 2023 SP - 1 EP - 25 PG - 25 SN - 1816-8957 DO - 10.5194/sd-32-1-2023 UR - https://m2.mtmt.hu/api/publication/34233670 ID - 34233670 N1 - Camborne School of Mines, Department of Earth and Environmental Sciences, University of Exeter, Penryn Campus, Penryn, Cornwall, TR10 9FE, United Kingdom Department of Earth Sciences, Khalifa University of Science and Technology, P.O. Box 12333, Abu Dhabi, United Arab Emirates Department of Geography, Laver Building, University of Exeter, North Park Road, Exeter, EX4 4QE, United Kingdom School of Earth Sciences and SFI Research Centre in Applied Geosciences (ICRAG), University College DublinDublin 4, Ireland Centre of Climate, Ocean and Atmosphere, Department of Earth Sciences, Royal Holloway University of London, Surrey, TW20 0EX, United Kingdom Geosciences Research Group, School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, United Kingdom Department of Earth Sciences, Utrecht University, Marine Palynology and Paleoceanography, Princetonlaan 8a, Utrecht, 3584, Netherlands Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, Copenhagen K, 1350, Denmark Department of Earth and Planetary Sciences, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, NJ 08854-8066, United States Geological Survey of Finland, Espoo, 02151, Finland British Geological Survey, Nottingham, Keyworth, NG12 5GG, United Kingdom Merlin Energy Resources Ltd., Newberry House, Herefordshire, Ledbury, HR8 2EJ, United Kingdom División Paleozoología Invertebrados, Facultad de Ciencias Naturales y Museo, Universidad Nacional de la Plata, Argentina, CONICET, Paseo del Bosque S/N, La Plata, 1900, Argentina Biogeosciences, UMR 6282, UBFC/CNRS, Université Bourgogne Franche-Comté, 6 Boulevard Gabriel, Dijon, 21000, France Department of Earth Sciences, University of Oxford, Oxford, OX1 3AN, United Kingdom Biogeochemistry Center, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, 237-0061, Japan Dpto. Biología y Geología, Fis. y Quimica Inorganica y Grupo de Investigacion en Dinamica de la Tierra y Evolucion Del Paisaje, ESCET, Universidad Rey Juan Carlos, C/Tulipán s/n, Móstoles, Madrid, 28933, Spain College of Oceanography, Hohai University, 1 Xikang Road, Nanjing, Jiangsu, 210098, China Department of Atmospheric, Oceanic, Earth Sciences, George Mason University, Fairfax, VA 22030, United States State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan, China Leibniz Institute for Applied Geophysics (LIAG), Stilleweg 2, Hanover, 30655, Germany School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom Univ Lyon, UCBL, ENSL, UJM, CNRS, LGL-TPE, Villeurbanne, 69622, France Department of Geology, Eötvös Loránd University, Pázmány, Péter sétány 1/C, Budapest, 1117, Hungary HUN-REN-MTM-ELTE Research Group of Palaeontology, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary Polish Geological Institute-National Research Institute, Rakowiecka 4, Warsaw, 00-975, Poland Department of Geology and SFI Research Centre in Applied Geosciences (ICRAG), Trinity College Dublin, The University of Dublin, Dublin, Ireland Department of Earth Sciences, Clayton H. Riddell Faculty of Earth, Environment, Resources, University of Manitoba, 230 Wallace Building, 125 Dysart Road, Winnipeg, MB R3T 2N2, Canada NIOZ Royal Netherlands Institute for Sea Research, Department of Marine Microbiology and Biogeochemistry, P.O. Box 59, 1790 AB (Texel), Den Burg, Netherlands Faculty of Geography and Geology, Jagiellonian University, Gronostajowa 3a, Kraków, 30-087, Poland Centre for Earth Evolution and Dynamics (CEED), University of Oslo, P.O. Box 1028 Blindern, Oslo, 0315, Norway Department of Geological Sciences, San Diego State University, San Diego, CA 92182-1010, United States Cited By :1 Export Date: 21 March 2024 Correspondence Address: Hesselbo, S.P.; Camborne School of Mines, Penryn, United Kingdom; email: s.p.hesselbo@exeter.ac.uk AB - Abstract. Drilling for the International Continental Scientific Drilling Program (ICDP) Early Jurassic Earth System and Timescale project (JET) was undertaken between October 2020 and January 2021. The drill site is situated in a small-scale synformal basin of the latest Triassic to Early Jurassic age that formed above the major Permian–Triassic half-graben system of the Cheshire Basin. The borehole is located to recover an expanded and complete succession to complement the legacy core from the Llanbedr (Mochras Farm) borehole drilled through 1967–1969 on the edge of the Cardigan Bay Basin, North Wales. The overall aim of the project is to construct an astronomically calibrated integrated timescale for the Early Jurassic and to provide insights into the operation of the Early Jurassic Earth system. Core of Quaternary age cover and Early Jurassic mudstone was obtained from two shallow partially cored geotechnical holes (Prees 2A to 32.2 m below surface (m b.s.) and Prees 2B to 37.0 m b.s.) together with Early Jurassic and Late Triassic mudstone from the principal hole, Prees 2C, which was cored from 32.92 to 651.32 m (corrected core depth scale). Core recovery was 99.7 % for Prees 2C. The ages of the recovered stratigraphy range from the Late Triassic (probably Rhaetian) to the Early Jurassic, Early Pliensbachian (Ibex Ammonoid Chronozone). All ammonoid chronozones have been identified for the drilled Early Jurassic strata. The full lithological succession comprises the Branscombe Mudstone and Blue Anchor formations of the Mercia Mudstone Group, the Westbury and Lilstock formations of the Penarth Group, and the Redcar Mudstone Formation of the Lias Group. A distinct interval of siltstone is recognized within the Late Sinemurian of the Redcar Mudstone Formation, and the name “Prees Siltstone Member” is proposed. Depositional environments range from playa lake in the Late Triassic to distal offshore marine in the Early Jurassic. Initial datasets compiled from the core include radiography, natural gamma ray, density, magnetic susceptibility, and X-ray fluorescence (XRF). A full suite of downhole logs was also run. Intervals of organic carbon enrichment occur in the Rhaetian (Late Triassic) Westbury Formation and in the earliest Hettangian and earliest Pliensbachian strata of the Redcar Mudstone Formation, where up to 4 % total organic carbon (TOC) is recorded. Other parts of the succession are generally organic-lean, containing less than 1 % TOC. Carbon-isotope values from bulk organic matter have also been determined, initially at a resolution of ∼ 1 m, and these provide the basis for detailed correlation between the Prees 2 succession and adjacent boreholes and Global Stratotype Section and Point (GSSP) outcrops. Multiple complementary studies are currently underway and preliminary results promise an astronomically calibrated biostratigraphy, magnetostratigraphy, and chemostratigraphy for the combined Prees and Mochras successions as well as insights into the dynamics of background processes and major palaeo-environmental changes. LA - English DB - MTMT ER - TY - JOUR AU - Kovács, Z AU - Horváth-Kostka, Zsófia Rita AU - Müller, Tamás AU - Pálfy, József TI - Chronostratigraphic overview of the Toarcian (Early Jurassic) ammonite fauna from the Mecsek Mountains (Hungary) JF - GEOLOGICA CARPATHICA J2 - GEOL CARPATH VL - 74 PY - 2023 IS - 3 SP - 211 EP - 232 PG - 22 SN - 1335-0552 DO - 10.31577/GeolCarp.2023.14 UR - https://m2.mtmt.hu/api/publication/34057402 ID - 34057402 N1 - Funding Agency and Grant Number: National Research, Development and Innovation Office of Hungary [OTKA NN 128702, K 135309] Funding text: We are grateful to Gabor Botfalvai, Andras Galacz, Anna Somlyay and Istvan Szente (Eotvos University, Budapest) , Alfred Dulai (HNHM, Budapest) , Tamas Henn (MK, Komlo) , Olga Piros and Timea Szlepak (Library of the Geological Institute of Hungary) for professional help and advice. Marta Hetenyi kindly provided indis- pensable locality information on the ammonite material in the Hetenyi Collection. Marton Szabo (HNHM) and Domonkos Verestoi-Kovacs (Budapest) contributed to the illustrations in this work. Private fossil collectors Laszlo Kanizsai (Komlo) and Laszlo Soever (Bonyhad) helped with our field surveys in the Cseresnyak Hill and the Farkas Ravine areas. Laszlo Soever kindly made available his ammonite material for study and publication. Critical comments by Philippe Faure (France) on an earlier version and constructive reviews by two anonymous journal reviewers helped to improve the manuscript. This study received funding by the National Research, Development and Innovation Office of Hungary (grants OTKA NN 128702 and K 135309) . This is ELKH-MTM-ELTE Paleo contribution No. 372. LA - English DB - MTMT ER - TY - JOUR AU - Somlyay, Anna AU - Palcsu, László AU - Kiss, Gabriella Ilona AU - Clarkson, Matthew O. AU - Kovács, Emma Blanka AU - Vallner, Zsolt AU - Zajzon, Norbert AU - Pálfy, József TI - Uranium isotope evidence for extensive seafloor anoxia after the end-Triassic mass extinction JF - EARTH AND PLANETARY SCIENCE LETTERS J2 - EARTH PLANET SC LETT VL - 614 PY - 2023 PG - 12 SN - 0012-821X DO - 10.1016/j.epsl.2023.118190 UR - https://m2.mtmt.hu/api/publication/33821788 ID - 33821788 N1 - Department of Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University, Budapest, 1117, Hungary ELKH-MTM-ELTE Research Group for Paleontology, Budapest, 1117, Hungary Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research, Debrecen, 4026, Hungary Department of Earth Sciences, ETHZ, Zurich, 8092, Switzerland Department of Geology, and Earth Surface Research Laboratory (ESRL), Trinity College Dublin, The University of Dublin, College Green, Dublin 2, Ireland Institute of Mineralogy and Petrology, University of Miskolc, Miskolc-Egyetemváros, H-3515, Hungary Export Date: 22 May 2023 Correspondence Address: Somlyay, A.; Department of Geology, Hungary; email: anna.somlyay@erdw.ethz.ch LA - English DB - MTMT ER - TY - JOUR AU - Vallner, Zsolt AU - Kovács, E.B. AU - Haas, János AU - Móricz, Ferenc AU - Ruhl, M. AU - Zajzon, Norbert AU - Pálfy, József TI - Preservation of orbital forcing in intraplatform carbonates and an astronomical time frame for a multiproxy record of end-Triassic global change from a western Tethyan section (Csővár, Hungary) JF - PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY J2 - PALAEOGEOGR PALAEOCL VL - 617 PY - 2023 PG - 18 SN - 0031-0182 DO - 10.1016/j.palaeo.2023.111493 UR - https://m2.mtmt.hu/api/publication/33712669 ID - 33712669 N1 - Department of Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, H-1117, Hungary Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research, Bem square 18/C, Debrecen, H-4026, Hungary Department of Geology, and Earth Surface Research Laboratory (ESRL), Trinity College Dublin, The University of Dublin, College Green, Dublin 2, Ireland Institute of Mineralogy and Petrology, University of Miskolc, Miskolc-Egyetemváros, H-3515, Hungary ELKH-MTM-ELTE Research Group for Paleontology, Hungary Cited By :2 Export Date: 12 March 2024 CODEN: PPPYA Correspondence Address: Vallner, Z.; Department of Geology, Pázmány Péter sétány 1/C, Hungary; email: zsolt.vallner@gmail.com LA - English DB - MTMT ER - TY - CHAP AU - Vallner, Zsolt AU - Pálfy, József ED - Pálfy, József ED - Főzy, István TI - Cyclostratigraphy and astrochronology of the lacustrine to paralic Mecsek Coal Formation (Southwest Hungary) T2 - 11th International Congress on the Jurassic System PB - ELTE CY - Budapest SN - 9786155270710 PY - 2022 SP - 128 UR - https://m2.mtmt.hu/api/publication/33961967 ID - 33961967 LA - English DB - MTMT ER - TY - CHAP AU - Dénes, D AU - Vallner, Zsolt AU - Demény, Attila AU - Kovács, Zs AU - Pálfy, József ED - Pálfy, József ED - Főzy, István TI - INTEGRATED STRATIGRAPHY OF THE HETTANGIAN-SINEMURIAN (LOWER JURASSIC) IN THE TATA GEOLOGICAL GARDEN (TRANSDANUBIAN RANGE, HUNGARY) T2 - 11th International Congress on the Jurassic System PB - ELTE CY - Budapest SN - 9786155270710 PY - 2022 SP - 35 UR - https://m2.mtmt.hu/api/publication/33112016 ID - 33112016 LA - English DB - MTMT ER - TY - CHAP AU - Somlyay, Anna AU - Palcsu, László AU - Kiss, Gabriella Ilona AU - Matthew, O. Clarkson AU - Kovács, Emma Blanka AU - Vallner, Zsolt AU - Zajzon, Norbert AU - Pálfy, József ED - Pálfy, József ED - Főzy, István TI - Extensive anoxia after the End-Triassic Mass Extinction: uranium isotope evidence from the Triassic-Jurassic boundary section at Csővár T2 - 11th International Congress on the Jurassic System PB - ELTE CY - Budapest SN - 9786155270710 PY - 2022 SP - 111 UR - https://m2.mtmt.hu/api/publication/33110863 ID - 33110863 LA - English DB - MTMT ER - TY - CHAP AU - Vallner, Zsolt AU - Kovács, EB AU - Demény, Attila AU - Móricz, Ferenc AU - Zajzon, Norbert AU - Pálfy, József ED - Pálfy, József ED - Főzy, István TI - Multiproxy cyclostratigraphy and astrochronology of a Triassic-Jurassic boundary section from Csővár, Hungary T2 - 11th International Congress on the Jurassic System PB - ELTE CY - Budapest SN - 9786155270710 PY - 2022 SP - 127 UR - https://m2.mtmt.hu/api/publication/33110788 ID - 33110788 LA - English DB - MTMT ER -