TY - JOUR AU - Sümegi, Pál AU - Gulyás, Sándor AU - Molnár, Dávid AU - Sümegi, BP. AU - Törőcsik, Tünde AU - Almond, PC. AU - Smalley, I AU - Zhou, L AU - Galovic, L AU - Pál-Molnár, Elemér AU - Hao, Q AU - Molnár, Mihály AU - Koloszár, L TI - Periodicities of paleoclimate variations in the first high-resolution non-orbitally tuned grain size record of the past 1 Ma from SW Hungary and regional, global correlations JF - AEOLIAN RESEARCH J2 - AEOLIAN RES VL - 40 PY - 2019 SP - 74 EP - 90 PG - 17 SN - 1875-9637 DO - 10.1016/j.aeolia.2019.07.002 UR - https://m2.mtmt.hu/api/publication/30741554 ID - 30741554 N1 - University of Szeged, Department of Geology and Paleontology, Szeged, Hungary Institute of Archeology, Hungarian Academy of Science, Budapest, Hungary ICER Center, Institute of Nuclear Research, Hungarian Academy of Sciences, Debrecen, Hungary Lincoln University, Lincoln, Northern Canterbury, New Zealand University of Leicester, Department of Geography, United Kingdom University of Beijing, Department of Geomorphology and Quaternary Geology, China Geological Institute of Croatia, Zagreb, Croatia University of Szeged, Department of Minerology, Petrology and Geochemistry, Szeged, Hungary Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China Institute of Nuclear Research, Hertelendi Laboratory of Environmental Sciences, Debrecen, Hungary Hungarian Geological and Geophysical Institute, Budapest, Hungary Export Date: 15 August 2019 Correspondence Address: Gulyás, S.; University of Szeged, Department of Geology and PaleontologyHungary; email: gulyas.sandor@geo.u-szeged.hu LA - English DB - MTMT ER - TY - JOUR AU - Újvári, Gábor AU - Kele, Sándor AU - Bernasconi, SM AU - Haszpra, László AU - Novothny, Ágnes AU - Bradák, Balázs TI - Clumped isotope paleotemperatures from MIS 5 soil carbonates in southern Hungary JF - PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY J2 - PALAEOGEOGR PALAEOCL VL - 518 PY - 2019 SP - 72 EP - 81 PG - 10 SN - 0031-0182 DO - 10.1016/j.palaeo.2019.01.002 UR - https://m2.mtmt.hu/api/publication/30399128 ID - 30399128 N1 - Funding Agency and Grant Number: National Research Development and Innovation Office in Hungary (NKFI Alap) [KH-125584]; Bolyai Janos Research Scholarship of the Hungarian Academy of Sciences; European Union; State of Hungary; European Regional Development Fund [GINOP-2.3.2-15-2016-00009] Funding text: This work was funded by the National Research Development and Innovation Office in Hungary (NKFI Alap KH-125584 project). Additional financial support provided by the Bolyai Janos Research Scholarship of the Hungarian Academy of Sciences (to GU) is gratefully acknowledged. The research was supported by the European Union and the State of Hungary, co-financed by the European Regional Development Fund in the project of GINOP-2.3.2-15-2016-00009 'ICER'. Constructive and insightful comments made by two anonymous reviewers greatly improved the paper. Export Date: 25 November 2019 CODEN: PPPYA Correspondence Address: Újvári, G.; Department of Lithospheric Research, University of Vienna, Althantrsasse 14 (UZA II), Austria; email: ujvari.gabor@csfk.mta.hu Cited By :3 Export Date: 25 October 2020 CODEN: PPPYA Correspondence Address: Újvári, G.; Department of Lithospheric Research, University of Vienna, Althantrsasse 14 (UZA II), Austria; email: ujvari.gabor@csfk.mta.hu Funding Agency and Grant Number: National Research Development and Innovation Office in Hungary (NKFI Alap) [KH-125584]; Bolyai Janos Research Scholarship of the Hungarian Academy of SciencesHungarian Academy of Sciences; European UnionEuropean Union (EU); State of Hungary; European Regional Development FundEuropean Union (EU) [GINOP-2.3.2-15-2016-00009] Funding text: This work was funded by the National Research Development and Innovation Office in Hungary (NKFI Alap KH-125584 project). Additional financial support provided by the Bolyai Janos Research Scholarship of the Hungarian Academy of Sciences (to GU) is gratefully acknowledged. The research was supported by the European Union and the State of Hungary, co-financed by the European Regional Development Fund in the project of GINOP-2.3.2-15-2016-00009 'ICER'. Constructive and insightful comments made by two anonymous reviewers greatly improved the paper. Cited By :5 Export Date: 16 February 2021 CODEN: PPPYA Correspondence Address: Újvári, G.; Department of Lithospheric Research, Althantrsasse 14 (UZA II), Austria; email: ujvari.gabor@csfk.mta.hu Funding details: European Commission, EC Funding details: Magyar Tudományos Akadémia, MTA Funding details: National Kidney Foundation of Iowa, NKFI Funding details: European Regional Development Fund, FEDER, GINOP-2.3.2-15-2016-00009 Funding text 1: This work was funded by the National Research Development and Innovation Office in Hungary ( NKFI Alap KH-125584 project). Additional financial support provided by the Bolyai János Research Scholarship of the Hungarian Academy of Sciences (to GÚ) is gratefully acknowledged. The research was supported by the European Union and the State of Hungary , co-financed by the European Regional Development Fund in the project of GINOP-2.3.2-15-2016-00009 ‘ICER’. Constructive and insightful comments made by two anonymous reviewers greatly improved the paper. LA - English DB - MTMT ER - TY - JOUR AU - Varga, György AU - Újvári, Gábor AU - Kovács, János TI - Interpretation of sedimentary (sub)populations extracted from grain size distributions of Central European loess-paleosol series JF - QUATERNARY INTERNATIONAL J2 - QUATERN INT VL - 502 PY - 2019 IS - Part A SP - 60 EP - 70 PG - 11 SN - 1040-6182 DO - 10.1016/j.quaint.2017.09.021 UR - https://m2.mtmt.hu/api/publication/3280132 ID - 3280132 AB - Grain size proxies of aeolian dust deposits have widely been applied in environmental and sedimentary studies. However, large body of research papers are not taking into consideration that a complex grain size distribution curve cannot be an indicator of a single one environmental factor (e.g. wind speed/strength, transportation distance, aridity). The aim of the present paper is to discuss the main differences of frequently used statistical methods and to provide possible interpretations of the results by applying these various approaches on the high-resolution loess-paleosol profile of Dunaszekcso, South Hungary (Central Europe). Beside single statistical descriptors (mean, median, mode) of grain size and simple indices of size-fraction ratios (U-ratio, Grain Size Index), some more complex algorithms were also used in our paper. The applied parametric curve-fitting, end-member modelling and hierarchical cluster analysis techniques are using the whole spectrum of the measured grain size distributions and provide a more reliable and more representative results even in case of small scale variations. According to our findings, approaches which provide direct linkage among simple statistical descriptors and single atmospheric or other environmental elements are rather oversimplified as properties aeolian dust deposits are influenced by the integrated effects of several concurrent processes. Differences of more complex decomposition methods arise from the different approach and scope. End-members are determined from the unmixing based on the covariance structure of the whole grain size data-series of the section, while the parametric curve-fitting is based on the one-by-one deconvolution of the grain size distribution curves. End-members of loess-paleosol samples are regarded as representation of the average dust grain size distribution of various temporal sediment clusters of seasonal or other short-term intervals, while (sub) populations by parametric curve-fitting are proposed to illustrate process-related elements of background and dust storm depositional components for each sample. Results of cluster analysis represent similar grouping conditions as end-member modelling with a reduced sedimentary and genetically meaning. (C) 2017 Elsevier Ltd and INQUA. All rights reserved. LA - English DB - MTMT ER - TY - JOUR AU - Bradák, Balázs AU - Újvári, Gábor AU - Seto, Y AU - Hyodo, M AU - Végh, Tamás TI - A conceptual magnetic fabric development model for the Paks loess in Hungary JF - AEOLIAN RESEARCH J2 - AEOLIAN RES VL - 30 PY - 2018 SP - 20 EP - 31 PG - 12 SN - 1875-9637 DO - 10.1016/j.aeolia.2017.11.002 UR - https://m2.mtmt.hu/api/publication/3297574 ID - 3297574 N1 - Cited By :5 Export Date: 24 September 2019 Correspondence Address: Bradák, B.; Research Center for Inland Seas, Kobe University, Nada, Japan; email: bradak.b@people.kobe-u.ac.jp Cited By :6 Export Date: 22 November 2019 Correspondence Address: Bradák, B.; Research Center for Inland Seas, Kobe University, Nada, Japan; email: bradak.b@people.kobe-u.ac.jp LA - English DB - MTMT ER - TY - JOUR AU - Lehmkuhl, F AU - Boesken, J AU - Hosek, J AU - Sprafke, T AU - Markovic, SB AU - Obreht, I AU - Hambach, U AU - Sümegi, Pál AU - Thiemann, A AU - Steffens, S AU - Lindner, H AU - Veres, D AU - Zeeden, C TI - Loess distribution and related Quaternary sediments in the Carpathian Basin JF - JOURNAL OF MAPS J2 - J MAPS VL - 14 ET - 0 PY - 2018 IS - 2 SP - 661 EP - 670 PG - 10 SN - 1744-5647 DO - 10.1080/17445647.2018.1526720 UR - https://m2.mtmt.hu/api/publication/30356403 ID - 30356403 N1 - Funding Agency and Grant Number: DFG (Deutsche Forschungsgemeinschaft) [INST 216/596-3, CRC 806] Funding text: The investigations were carried out in the frame of the CRC 806 'Our way to Europe', subproject B1 'The Eastern Trajectory': 'Last Glacial Palaeogeography and Archaeology of the Eastern Mediterranean and of the Balkan Peninsula', supported by the DFG (Deutsche Forschungsgemeinschaft [grant number INST 216/596-3]). AB - Supraregional (palaeo)geoecological studies require detailed knowledge of the distribution of aeolian sediments and their sources. Such spatial data can be visualised and shared in maps, but often these are constrained in their resolution or extent. This is the case for the Carpathian Basin, where cross-border maps are not detailed enough to answer many research questions. Problems occur especially along political borders due to different geological mapping standards and varying lithological definitions. Using a Geographic Information System (GIS), we compiled a map showing the distribution of loess and related Quaternary sediments in the Carpathian Basin, with unprecedented detail. We vectorised and analysed existing data (mainly from geological maps) and combined and transferred these into a common (loess) sediment classification system. This cross-border map shows the distribution of aeolian sediments in the Carpathian Basin at a scale of 1:1,500,000. For the northwestern and the southern Carpathian Basin, we added maps that clarify the extent of late Pleistocene and Holocene terrace and floodplain deposits, which were merged in the to highlight the predominant dust source areas for this region. LA - English DB - MTMT ER - TY - JOUR AU - Sümegi, Pál AU - Gulyás, Sándor AU - Molnár, Dávid AU - Sümegi, B P AU - Almond, P C AU - Vandenberghe, J AU - Zhou, L AU - Pál-Molnár, Elemér AU - Törőcsik, Tünde AU - Hao, Q AU - Smalley, I AU - Molnár, Mihály AU - Marsi, István TI - New chronology of the best developed loess/paleosol sequence of Hungary capturing the past 1.1 ma. Implications for correlation and proposed pan-Eurasian stratigraphic schemes TS - Implications for correlation and proposed pan-Eurasian stratigraphic schemes JF - QUATERNARY SCIENCE REVIEWS J2 - QUATERN SCI REV VL - 191 PY - 2018 SP - 144 EP - 166 PG - 23 SN - 0277-3791 DO - 10.1016/j.quascirev.2018.04.012 UR - https://m2.mtmt.hu/api/publication/3374753 ID - 3374753 N1 - Megjegyzés-27405538 N1 Funding details: GINOP-2.3.2-15-2016-00009, FEDER, European Regional Development Fund N1 Funding text: The research was supported by the European Union and the State of Hungary, co-financed by the gs1:European Regional Development Fund in the project of GINOP-2.3.2-15-2016-00009 'ICER'. We are grateful for the two anonymous reviewers whose comments helped improving the content of the manuscript to its present form. Appendix A University of Szeged, Department of Geology and Paleontology, Szeged, Hungary Institute of Archeology, Hungarian Academy of Science, Budapest, Hungary Lincoln University, Lincoln, Northern Canterbury, New Zealand Vrije Universiteit Amsterdam, Institute of Earth Sciences, Netherlands University of Beijing, Department of Geomorphology and Quaternary Geology, China University of Szeged, Department of Minerology, Petrology and Geochemistry, Szeged, Hungary Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China University of Leicester, Department of Geography, United Kingdom Institute of Nuclear Research, Hertelendi Laboratory of Environmental Sciences, Debrecen, Hungary ICER Center, Institute of Nuclear Research, Hungarian Academy of Sciences, Debrecen, Hungary Hungarian Geological and Geophysical Institute, Budapest, Hungary Cited By :2 Export Date: 24 September 2019 CODEN: QSRED Correspondence Address: Gulyás, S.; University of Szeged, Department of Geology and PaleontologyHungary; email: gulyas.sandor@geo.u-szeged.hu Funding details: European Regional Development Fund, GINOP-2.3.2-15-2016-00009 Funding text 1: The research was supported by the European Union and the State of Hungary, co-financed by the gs1:European Regional Development Fund in the project of GINOP-2.3.2-15-2016-00009 'ICER'. We are grateful for the two anonymous reviewers whose comments helped improving the content of the manuscript to its present form. Appendix A LA - English DB - MTMT ER - TY - JOUR AU - Újvári, Gábor AU - Stevens, T AU - Molnár, Mihály AU - Demény, Attila AU - Fabrice, L AU - Varga, György AU - Jull, Timothy AJ AU - Páll-Gergely, Barna AU - Buylaert, JP AU - Kovács, János TI - Coupled European and Greenland last glacial dust activity driven by North Atlantic climate JF - PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA J2 - P NATL ACAD SCI USA VL - 114 PY - 2017 IS - 50 SP - E10632 EP - E10638 PG - 7 SN - 0027-8424 DO - 10.1073/pnas.1712651114 UR - https://m2.mtmt.hu/api/publication/3296802 ID - 3296802 N1 - Institute for Geological and Geochemical Research, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Budapest, H-1112, Hungary Center for Nuclear Technologies, Technical University of Denmark, Roskilde, 4000, Denmark Department of Earth Sciences, Uppsala University, Uppsala, 75236, Sweden Isotope Climatology and Environmental Research Centre, Institute for Nuclear Research, Hungarian Academy of Sciences, Debrecen, H-4026, Hungary Geography Institute, Pontificia Universidad Católica de Chile, Santiago, 7810000, Chile Geographical Institute, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Budapest, H-1112, Hungary Department of Geosciences, University of Arizona, Tucson, AZ 85721, United States University of Arizona Accelerator Mass Spectrometry Facility, University of Arizona, Tucson, AZ 85721, United States Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, H-1022, Hungary Nordic Laboratory for Luminescence Dating, Department of Geoscience, University of Aarhus, Roskilde, 4000, Denmark Department of Geology and Meteorology, University of Pécs, Pécs, H-7624, Hungary Environmental Analytical and Geoanalytical Research Group, Szentágothai Research Centre, Pécs, H-7624, Hungary Cited By :10 Export Date: 24 September 2019 CODEN: PNASA Correspondence Address: Újvári, G.; Institute for Geological and Geochemical Research, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of SciencesHungary; email: ujvari.gabor@csfk.mta.hu Institute for Geological and Geochemical Research, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Budapest, H-1112, Hungary Center for Nuclear Technologies, Technical University of Denmark, Roskilde, 4000, Denmark Department of Earth Sciences, Uppsala University, Uppsala, 75236, Sweden Isotope Climatology and Environmental Research Centre, Institute for Nuclear Research, Hungarian Academy of Sciences, Debrecen, H-4026, Hungary Geography Institute, Pontificia Universidad Católica de Chile, Santiago, 7810000, Chile Geographical Institute, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Budapest, H-1112, Hungary Department of Geosciences, University of Arizona, Tucson, AZ 85721, United States University of Arizona Accelerator Mass Spectrometry Facility, University of Arizona, Tucson, AZ 85721, United States Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, H-1022, Hungary Nordic Laboratory for Luminescence Dating, Department of Geoscience, University of Aarhus, Roskilde, 4000, Denmark Department of Geology and Meteorology, University of Pécs, Pécs, H-7624, Hungary Environmental Analytical and Geoanalytical Research Group, Szentágothai Research Centre, Pécs, H-7624, Hungary Export Date: 22 February 2021 CODEN: PNASA Correspondence Address: Újvári, G.; Institute for Geological and Geochemical Research, Hungary; email: ujvari.gabor@csfk.mta.hu LA - English DB - MTMT ER - TY - JOUR AU - Újvári, Gábor AU - Molnár, Mihály AU - Páll-Gergely, Barna TI - Charcoal and mollusc shell 14C-dating of the Dunaszekcso loess record, Hungary JF - QUATERNARY GEOCHRONOLOGY J2 - QUAT GEOCHRONOL VL - 35 PY - 2016 SP - 43 EP - 53 PG - 11 SN - 1871-1014 DO - 10.1016/j.quageo.2016.05.005 UR - https://m2.mtmt.hu/api/publication/3080495 ID - 3080495 N1 - Export Date: 15 October 2019 Correspondence Address: Újvári, G.; Institute for Geological and Geochemical Research, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Budaörsi u. 45, Hungary; email: ujvari.gabor@csfk.mta.hu Export Date: 22 February 2021 Correspondence Address: Újvári, G.; Institute for Geological and Geochemical Research, Budaörsi u. 45, Hungary; email: ujvari.gabor@csfk.mta.hu AB - Accelerator mass spectrometry (AMS) radiocarbon dating of charcoals and 10 mollusc species (+2 identified at the family level) yield 64 new ages from the Dunaszekcso loess record, Hungary. Charcoal 14C ages are found to be protocol-dependent, with ages obtained from the high temperature (800 °C) fraction of the two-step combustion (TSC) protocol being always the oldest and likely most reliable. One step combustion (OSC) at 1000 °C produces comparable ages with those obtained from the low temperature (400 °C) fraction of the TSC protocol. Discrepancies between the ABA-TSC400 and TSC800 ages become larger for older, and less well-preserved charcoal fragments. Testing of shell ages against those of charcoals reveals that Succineidae sp., Chondrula tridens, Trochulus hispidus and members of the family Clausiliidae yield 14C ages that are statistically indistinguishable from charcoals recovered from the same stratigraphic interval, or with the ABA-TSC800 charcoal age. Thus, these species show great potential for creating accurate and precise chronologies for loess records within the useful range (<~40 ka) of 14C-dating of land snails. Conservative estimates of 95% uncertainties of the resulting Bayesian age-depth models are in the range of 500-800 yr. However, these uncertainties are strongly dependent on the number of dates available and the resolution of sampling, but they are usually well below those of luminescence chronologies. © 2016 Elsevier B.V. LA - English DB - MTMT ER - TY - JOUR AU - Varga, György AU - Cserháti, Csaba AU - Kovács, János AU - Szalai, Zoltán TI - Saharan dust deposition in the Carpathian Basin and its possible effects on interglacial soil formation JF - AEOLIAN RESEARCH J2 - AEOLIAN RES VL - 22 PY - 2016 SP - 1 EP - 12 PG - 12 SN - 1875-9637 DO - 10.1016/j.aeolia.2016.05.004 UR - https://m2.mtmt.hu/api/publication/3072437 ID - 3072437 N1 - Geographical Institute, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Budaörsi út 45, Budapest, H-1112, Hungary Department of Solid State Physics, University of Debrecen, Bem tér 18/b, Debrecen, H-4026, Hungary Department of Geology and Meteorology, University of Pécs, Ifjúság u. 6, Pécs, H-7624, Hungary Environmental Analytical and Geoanalytical Research Group, Szentágothai Research Centre, University of Pécs, Ifjúság u. 20, Pécs, H-7624, Hungary Department of Environmental and Landscape Geography, Institute of Geography and Earth Sciences, Faculty of Science, Eötvös University, Pázmány Péter sétany 1/c, Budapest, H-1117, Hungary Cited By :38 Export Date: 30 April 2022 Correspondence Address: Varga, G.; Geographical Institute, Budaörsi út 45, Hungary; email: varga.gyorgy@csfk.mta.hu LA - English DB - MTMT ER - TY - JOUR AU - Újvári, Gábor AU - Molnár, Mihály AU - Novothny, Ágnes AU - Páll-Gergely, Barna AU - Kovács, János AU - Várhegyi, András TI - AMS 14C and OSL/IRSL dating of the Dunaszekcső loess sequence (Hungary): chronology for 20 to 150 ka and implications for establishing reliable age–depth models for the last 40 ka JF - QUATERNARY SCIENCE REVIEWS J2 - QUATERN SCI REV VL - 106 PY - 2014 IS - SI SP - 140 EP - 154 PG - 15 SN - 0277-3791 DO - 10.1016/j.quascirev.2014.06.009 UR - https://m2.mtmt.hu/api/publication/2790432 ID - 2790432 N1 - Geodetic and Geophysical Institute, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Csatkai E. u. 6-8., Sopron, H-9400, Hungary Hertelendi Laboratory of Environmental Studies, Institute for Nuclear Research, Hungarian Academy of Sciences, Bem tér 18/C, Debrecen, H-4026, Hungary Department of Physical Geography, Eötvös Loránd University, Pazmany Peter setany 1/c, Budapest, H-1117, Hungary Department of Biology, Shinshu University, Matsumoto, 390-8621, Japan Department of Geology and Meteorology, University of Pécs, Ifjúság u. 6., Pécs, 7624, Hungary Environmental Analytical and Geoanalytical Research Group, Szentágothai Research Centre, University of Pécs, Ifjúság útja 20., Pécs, H-7624, Hungary Department of Environmental Engineering, Polláck Mihály Faculty of Engineering and Information Technology, University of Pécs, Rozmaring u. 17., Pécs, H-7634, Hungary Export Date: 15 October 2019 CODEN: QSRED Correspondence Address: Újvári, G.; Geodetic and Geophysical Institute, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Csatkai E. u. 6-8., Hungary; email: ujvari@ggki.hu Funding Agency and Grant Number: Hungarian Scientific Research FundOrszagos Tudomanyos Kutatasi Alapprogramok (OTKA) [OTKA PD-108639, OTKA PD-100315]; Bolyai Janos Research Scholarship of the Hungarian Academy of SciencesHungarian Academy of Sciences; EUEuropean Union (EU) [TAMOP-4.2.2.C-11/1/KONV-2012-0015, SROP-4.2.1.B-10/2/KONV-2010-0002, TAMOP-4.2.2.A-11/1/KONV-2012-0043] Funding text: This work has been funded by post doc projects from the Hungarian Scientific Research Fund to GU (OTKA PD-108639) and to AN (OTKA PD-100315). Additional financial support provided by the Bolyai Janos Research Scholarship of the Hungarian Academy of Sciences (GU) and the EU through the TAMOP-4.2.2.C-11/1/KONV-2012-0015 Earth System, the SROP-4.2.1.B-10/2/KONV-2010-0002 and ENVIKUT (TAMOP-4.2.2.A-11/1/KONV-2012-0043) projects is gratefully acknowledged. Special thanks to Christine Thiel, Jan-Pieter Buylaert and Andrew Murray for the fruitful discussions on post-IR IRSL dating and for the possibility to etching fine-grained samples at the Nordic Laboratory for Luminescence Dating, Riso National Laboratory, Roskilde, Denmark. Guest editor Achim Brauer and the two anonymous referees are thanked for their valuable input which helped us to refine the original manuscript substantially. Geodetic and Geophysical Institute, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Csatkai E. u. 6-8., Sopron, H-9400, Hungary Hertelendi Laboratory of Environmental Studies, Institute for Nuclear Research, Hungarian Academy of Sciences, Bem tér 18/C, Debrecen, H-4026, Hungary Department of Physical Geography, Eötvös Loránd University, Pazmany Peter setany 1/c, Budapest, H-1117, Hungary Department of Biology, Shinshu University, Matsumoto, 390-8621, Japan Department of Geology and Meteorology, University of Pécs, Ifjúság u. 6., Pécs, 7624, Hungary Environmental Analytical and Geoanalytical Research Group, Szentágothai Research Centre, University of Pécs, Ifjúság útja 20., Pécs, H-7624, Hungary Department of Environmental Engineering, Polláck Mihály Faculty of Engineering and Information Technology, University of Pécs, Rozmaring u. 17., Pécs, H-7634, Hungary Cited By :46 Export Date: 16 February 2021 CODEN: QSRED Correspondence Address: Újvári, G.; Geodetic and Geophysical Institute, Csatkai E. u. 6-8., Hungary; email: ujvari@ggki.hu Funding details: European Commission, EC Funding details: Magyar Tudományos Akadémia, MTA Funding details: Hungarian Scientific Research Fund, OTKA, PD-100315, OTKA PD-108639 Funding text 1: This work has been funded by post doc projects from the Hungarian Scientific Research Fund to GÚ ( OTKA PD-108639 ) and to ÁN ( OTKA PD-100315 ). Additional financial support provided by the Bolyai János Research Scholarship of the Hungarian Academy of Sciences (GÚ) and the EU through the TÁMOP-4.2.2.C-11/1/KONV‒2012-0015 Earth System, the SROP-4.2.1.B-10/2/KONV-2010-0002 and ENVIKUT (TÁMOP-4.2.2.A-11/1/KONV-2012-0043) projects is gratefully acknowledged. Special thanks to Christine Thiel, Jan-Pieter Buylaert and Andrew Murray for the fruitful discussions on post-IR IRSL dating and for the possibility to etching fine-grained samples at the Nordic Laboratory for Luminescence Dating, Risø National Laboratory, Roskilde, Denmark. Guest editor Achim Brauer and the two anonymous referees are thanked for their valuable input which helped us to refine the original manuscript substantially. Geodetic and Geophysical Institute, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Csatkai E. u. 6-8., Sopron, H-9400, Hungary Hertelendi Laboratory of Environmental Studies, Institute for Nuclear Research, Hungarian Academy of Sciences, Bem tér 18/C, Debrecen, H-4026, Hungary Department of Physical Geography, Eötvös Loránd University, Pazmany Peter setany 1/c, Budapest, H-1117, Hungary Department of Biology, Shinshu University, Matsumoto, 390-8621, Japan Department of Geology and Meteorology, University of Pécs, Ifjúság u. 6., Pécs, 7624, Hungary Environmental Analytical and Geoanalytical Research Group, Szentágothai Research Centre, University of Pécs, Ifjúság útja 20., Pécs, H-7624, Hungary Department of Environmental Engineering, Polláck Mihály Faculty of Engineering and Information Technology, University of Pécs, Rozmaring u. 17., Pécs, H-7634, Hungary Export Date: 22 February 2021 CODEN: QSRED Correspondence Address: Újvári, G.; Geodetic and Geophysical Institute, Csatkai E. u. 6-8., Hungary; email: ujvari@ggki.hu AB - Abstract As revealed by 18 AMS radiocarbon and 24 OSL/IRSL ages the Dunaszekcső loess-paleosol sequence is an excellent terrestrial record of paleoenvironmental change in the Carpathian Basin for the last 130 ka, with significant soil forming episodes during the Eemian interglacial (130–115 ka, MIS 5e) and in some subsequent MIS 5 stages, and distinct periods of loess accumulations during the MIS 4 and MIS 2. Charcoals from the sequence made it possible to test the accuracy of 14C ages from mollusc shells. This approach revealed that 14C ages from some gastropods having small shells (<10 mm) (Succinella oblonga, Vitrea crystallina) are statistically indistinguishable from the ages of charcoals, while others (Clausiliidae sp., Chondrula tridens) show age anomalies up to 600–800 years. OSL and pIRIR@290 ages are found to be consistently older, while post-IR OSL ages are younger than the 14C ages from charcoals and molluscs by some thousands of years, except for pIRIR@225 ages that match the radiocarbon ages quite well. OSL and IRSL ages have scatters up to 7–10 thousand years within 40 ka, while charcoals and small molluscs yield consistent ages with relatively low variability. Beyond the observation that some small molluscs seem to yield reliable 14C ages, calibrated 2σ age ranges of the radiocarbon data (ca 500–800 years for 20 to 30 ka) are an order of magnitude narrower than those of the OSL/IRSL methods (1800–4000 years for 25 to 35 ka). Thus, for establishing chronologies within 40 ka, which are both accurate and precise enough to address issues like synchroneity of millennial-scale paleoenvironmental events across regions (e.g. North Atlantic and Europe), AMS radiocarbon dating of shells of specific loess molluscs and charcoals may probably be a powerful chronological tool. However, additional work is definitely required involving 14C and OSL/IRSL dates from other loess sequences to further test the performance of these two supposedly robust chronometers. LA - English DB - MTMT ER - TY - JOUR AU - Újvári, Gábor AU - Raucsikné Varga, Andrea Beáta AU - Raucsik, Béla AU - Kovács, János TI - The Paks loess-paleosol sequence: A record of chemical weathering and provenance for the last 800 ka in the mid-Carpathian Basin JF - QUATERNARY INTERNATIONAL J2 - QUATERN INT VL - 319 PY - 2014 SP - 22 EP - 37 PG - 16 SN - 1040-6182 DO - 10.1016/j.quaint.2012.04.004 UR - https://m2.mtmt.hu/api/publication/2524367 ID - 2524367 AB - The Paks loess-paleosol sequence is one of the most important terrestrial records of Middle and Late Pleistocene environmental changes in East Central Europe, spanning the last ca. 0.8. Ma. While geochemical proxies demonstrate a general decreasing chemical weathering trend over the last 0.8. Ma in the Carpathian Basin, mineralogy and derived indices reflect intensifying physical erosion. In theory, the observed chemical weathering trend can be accounted for both by enhanced input of relatively unweathered material and by climate deterioration during the Quaternary, as the proxies such as CIA are not capable of distinguishing between pre- and post-depositional weathering. Enhanced physical erosion of the source areas, driven by tectonism, and resulting increased sedimentation of fresh mineral dust at the depositional site are demonstrated by increasing dolomite, illite and chlorite contents and sme/ill, sme/(ill. +. chl) ratios from older to younger sediments in the profile, together with increasing thickness of loess layers towards the youngest part of the sequence. At the same time, constant smectite contents (30-40%) in paleosols appear to disprove progressive aridization of interglacials through time and suggest that the duration of pedogenesis played an important role in determining soil types. Further, the increasing proportion of inherited phyllosilicates (illite and chlorite) would, in theory, raise the possibility that the decreasing values of chemical weathering indices are just artifacts of enhanced physical erosion and resulting increased dust deposition by a dilution effect. The above findings highlight the fact that the general view on chemical weathering is oversimplistic, as its 'equation' includes two basic variables, tectonism and time beyond climate and the interplay of these equally important factors will eventually determine its final value. To get a better grasp of these processes needs further data (more age control in loess profiles, data on uplift in and around sedimentary basins) and more sophisticated proxies, as the mineralogical data presented here can be considered only semiquantitative.Regarding the provenance of sediments in the Paks profile, geochemical data demonstrate that felsic rocks dominated the source areas and there have been only very little variations in provenance over the last ca. 0.8. Ma. Significant contributions from mafic/ultramafic rocks to the sediments can be ruled out as revealed by lower abundances of ferromagnesian trace elements. The appearance of amphiboles and high dolomite contents suggest that loess material was at least partly sourced from local rocks and geochemical data reveal a genetic link between floodplain sediments and loess deposits. © 2012 Elsevier Ltd and INQUA. LA - English DB - MTMT ER - TY - JOUR AU - Varga, György AU - Újvári, Gábor AU - Kovács, János TI - Spatiotemporal patterns of Saharan dust outbreaks in the Mediterranean Basin JF - AEOLIAN RESEARCH J2 - AEOLIAN RES VL - 15 PY - 2014 SP - 151 EP - 160 PG - 10 SN - 1875-9637 DO - 10.1016/j.aeolia.2014.06.005 UR - https://m2.mtmt.hu/api/publication/2759491 ID - 2759491 N1 - Geographical Institute, Research Centre for Astronomy and Earth Sciences Hungarian Academy of Sciences, Budaörsiút 45, Budapest, H-1112, Hungary Geodetic and Geophysical Institute, Research Centre for Astronomy and Earth Sciences Hungarian Academy of Sciences, Csatkai E. u. 6-8, Sopron, H-9400, Hungary Department of Geology and Meteorology, University of Pécs, Ifjúság u. 6, Pécs, H-7624, Hungary Environmental Analytical and Geoanalytical Research Group, Szentágothai Research Centre, University of Pécs, Ifjúság u. 20, Pécs, H-7624, Hungary Cited By :50 Export Date: 7 January 2022 Correspondence Address: Varga, G.; Geographical Institute, Budaörsiút 45, Hungary AB - Saharan dust outbreaks transport appreciable amounts of mineral particles into the atmosphere of the Mediterranean Basin. Atmospheric particulates have significant impacts on numerous atmospheric, climatic and biogeochemical processes. The recognition of background drivers, spatial and temporal variations of the amount of Saharan dust particles in the Mediterranean can lead to a better understanding of possible past and future environmental effects of atmospheric dust in the region. For this study the daily NASA Total Ozone Mapping Spectrometer's and Ozone Monitoring Instrument's aerosol data (1979-2012) were employed to estimate atmospheric dust amount. Daily geopotential height, wind vector and meridional flow data of the distinguished dust events were obtained from the NCEP/NCAR Reanalysis to compile mean synoptic composite maps. In order to identify the typical dust transportation routes and possible source areas, the backward trajectories were plotted using the NOAA HYSPLIT model. The main period of the dust transportation is from March to end of August, when the thermal convective activity forces the injection of particles to higher atmospheric levels. However, seasonality patterns of the different Mediterranean sub-basins show quite large differences. In western sub-basins, the maxima of Saharan dust outbreaks is in summer, related southwest flow between a southward emanating trough and the northward migrating subtropical high-pressure centre. In the eastern basin, dust storms occur typically in spring, generated by the warm sector winds on foreside of eastward moving Mediterranean and Sharav cyclones. The seasonal distribution of dust events in the central sub-basins shows a bimodal characteristic with a spring and summer peak. © 2014 Elsevier B.V. All rights reserved. LA - English DB - MTMT ER - TY - JOUR AU - Újvári, Gábor AU - Klötzli, U AU - Kiraly, F AU - Ntaflos, T TI - Towards identifying the origin of metamorphic components in Austrian loess: Insights from detrital rutile chemistry, thermometry and U-Pb geochronology JF - QUATERNARY SCIENCE REVIEWS J2 - QUATERN SCI REV VL - 75 PY - 2013 SP - 132 EP - 142 PG - 11 SN - 0277-3791 DO - 10.1016/j.quascirev.2013.06.002 UR - https://m2.mtmt.hu/api/publication/2363430 ID - 2363430 AB - Trace element (Cr, Nb, Zr) geochemistry and U-Pb geochronology of detrital rutile grains provide constraints on the nature of potential metamorphic sources of loess in Austria. Cr and Nb compositions reveal rutile sources with a predominance of metapelitic lithologies for all three loess samples. By contrast, Zr-in-rutile geothermometry indicates that formation temperatures for loess rutiles around Krems (at the Bohemian Massif=BM) proved to be ca 100-125°C higher (Tmedian=717 and 737°C for two samples from Stratzing and Krems) than those at Wels (close to the Eastern Alps=EA; Tmedian=612°C), implying that rutiles in loess at Wels were derived from Alpine lower amphibolite-grade rocks, while those in loess around Krems from rocks formed under upper amphibolite to granulite-grade conditions. Metamorphic temperatures recorded in rutiles from loess at the BM closely match the 'two-reaction' thermobarometry estimates of the last high-T overprint (7-11kbar and 700-800°C) of rocks making up the Varied series and Gföhl units around Krems. This event dated at 340 to 350Ma is believed to be captured by the detrital rutile U-Pb data as well (e.g. 349±21 and 352±32 Ma). All these data demonstrate the significance of proximal BM sources (Varied series and Gföhl unit drained by the Danube) in loess formation around Krems. Fluvial transport is believed to have played a substantial role in entraining and accumulating rutiles for subsequent aeolian deflation for loess near Wels. While the ultimate sources of these grains are likely to be in the Eastern Alps, the recycling of these rutiles from the flysch zone of the EA cannot be ruled out.Despite the uncertainties of Cr-Nb-based source discriminations in some cases and the potential decoupling of Zr- and U-Pb systematics recognized in rutiles, this study demonstrates that rutiles may provide unique details on the nature and metamorphic history of their parent rocks, if used with caution and by knowing its limitations under certain conditions. It is anticipated that, beyond zircon, rutile geochemistry will become a powerful provenance tracer in loess studies too. This seems to be particularly important to gain a better understanding on the erosion and rutile fertility of different metamorphic terrains and their contributions to loess material, issues that have not been adequately addressed thus far. © 2013 Elsevier Ltd. LA - English DB - MTMT ER - TY - JOUR AU - Varga, György AU - Kovács, János AU - Újvári, Gábor TI - Analysis of Saharan dust intrusions into the Carpathian Basin (Central Europe) over the period of 1979-2011 JF - GLOBAL AND PLANETARY CHANGE J2 - GLOBAL PLANET CHANGE VL - 100 PY - 2013 SP - 333 EP - 342 PG - 10 SN - 0921-8181 DO - 10.1016/j.gloplacha.2012.11.007 UR - https://m2.mtmt.hu/api/publication/2151085 ID - 2151085 N1 - Geographical Institute, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Budaörsi út 45, H-1112 Budapest, Hungary Department of Geology, University of Pécs, Ifjúság u. 6, H-7624 Pécs, Hungary Environmental Analytical and Geoanalytical Laboratory, Szentágothai Research Centre, University of Pécs, Ifjúság u. 20, H-7624 Pécs, Hungary Geodetic and Geophysical Institute, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Csatkai E. u. 6-8, H-9400 Sopron, Hungary Cited By :22 Export Date: 24 September 2019 CODEN: GPCHE Correspondence Address: Varga, G.; Geographical Institute, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Budaörsi út 45, Hungary; email: varga.gyorgy@csfk.mta.hu AB - Aeolian dust particles and dust storms play substantial role in climatic and other environmental processes of the Earth system. The largest and most important dust source areas are situated in the Sahara, from where several hundred thousand tons of mineral dust is emitted each year and transported towards the European continent. Here we show that 130 Saharan dust events (SDEs) reached the atmosphere of the Carpathian Basin from 1979 to 2011 by using the NASA's daily TOMS Aerosol Index data, satellite images and backward trajectory calculations of NOAA HYSPLIT model. Monthly trends of dust events demonstrate that the main period of dust transportation is in the spring, with a secondary maximum in the summer (in July and August). This seasonal distribution match well the seasonality of Saharan dust emissions. However synoptic meteorological conditions govern primarily the occurrence of long-range dust transport towards Central Europe. Based on their different meteorological backgrounds (geopotential field, wind vector and meridional flow), SDEs were classified into three main types. By using composite mean maps of synoptic situations and backward trajectories, the possible source areas have also been identified for the different types of events. Finally, we provide a short discussion on how the African mineral dust could contribute to the local aeolian sedimentation of the Carpathian Basin during the Plio-Pleistocene. © 2012 Elsevier B.V. LA - English DB - MTMT ER - TY - JOUR AU - Kovács, János AU - Moravcová, M AU - Újvári, Gábor AU - Pintér, AG TI - Reconstructing the paleoenvironment of East Central Europe in the Late Pleistocene using the oxygen and carbon isotopic signal of tooth in large mammal remains JF - QUATERNARY INTERNATIONAL J2 - QUATERN INT VL - 276-277 PY - 2012 SP - 145 EP - 154 PG - 10 SN - 1040-6182 DO - 10.1016/j.quaint.2012.04.009 UR - https://m2.mtmt.hu/api/publication/2107311 ID - 2107311 LA - English DB - MTMT ER - TY - JOUR AU - Újvári, Gábor AU - Raucsikné Varga, Andrea Beáta AU - Ramos, F C AU - Kovács, János AU - Németh, Tibor AU - Stevens, T TI - Evaluating the use of clay mineralogy, Sr-Nd isotopes and zircon U-Pb ages in tracking dust provenance: An example from loess of the Carpathian Basin JF - CHEMICAL GEOLOGY J2 - CHEM GEOL VL - 304-305 PY - 2012 SP - 83 EP - 96 PG - 14 SN - 0009-2541 DO - 10.1016/j.chemgeo.2012.02.007 UR - https://m2.mtmt.hu/api/publication/1934996 ID - 1934996 N1 - Megjegyzés-22375086 WC: Geochemistry & Geophysics LA - English DB - MTMT ER - TY - JOUR AU - Sebe, Krisztina AU - Csillag, Gábor AU - Ruszkiczay-Rüdiger, Zsófia AU - Fodor, László AU - Thamóné Bozsó, Edit AU - Müller, P AU - Braucher, R TI - Wind erosion under cold climate: A Pleistocene periglacial mega-yardang system in Central Europe (Western Pannonian Basin, Hungary) JF - GEOMORPHOLOGY J2 - GEOMORPHOLOGY VL - 134 PY - 2011 IS - 3-4 SP - 470 EP - 482 PG - 13 SN - 0169-555X DO - 10.1016/j.geomorph.2011.08.003 UR - https://m2.mtmt.hu/api/publication/1712195 ID - 1712195 LA - English DB - MTMT ER - TY - JOUR AU - Raucsikné Varga, Andrea Beáta AU - Újvári, Gábor AU - Raucsik, Béla TI - Tectonic versus climatic control on the evolution of a loess–paleosol sequence at Beremend, Hungary: An integrated approach based on paleoecological, clay mineralogical, and geochemical data JF - QUATERNARY INTERNATIONAL J2 - QUATERN INT VL - 240 PY - 2011 IS - 1-2 SP - 71 EP - 86 PG - 16 SN - 1040-6182 DO - 10.1016/j.quaint.2010.10.032 UR - https://m2.mtmt.hu/api/publication/1394245 ID - 1394245 N1 - Megjegyzés-24849663 Megjegyzés-22001851 Z9: 1 WC: Geography, Physical; Geosciences, Multidisciplinary AB - The role of two major factors, climate and tectonism, in controlling loess-paleosol evolution has been evaluated in the present study based on a multi-proxy dataset comprising mollusc, bulk and clay mineralogical, and geochemical data. A recent trend has been to use chemical indices such as the chemical index of alteration (CIA) for paleoclimate reconstructions in loess-paleosol sequences spanning several hundreds of thousands of years, but without any tectonic interpretation. Possible effects of geodynamic factors on physical erosion, chemical weathering and consequently weathering proxies are discussed. Clearly, the relative rates of physical erosion and chemical weathering in a sedimentary environment could be significantly influenced by geodynamic factors and governed not just by climate. Intensifying tectonic uplift gives rise to enhanced physical erosion, leading to increased supply of fresh mineral surfaces having less time to react with weathering agents. In theory, this process may point towards decreasing chemical weathering in a sequence without any real changes of climate. In the studied loess-paleosol sequence at Beremend (Hungary) a trend of decreasing chemical weathering has been observed, which can be explained by a global climate deterioration and accelerating uplift in and around the sedimentary basin. Increasing dust sedimentation could theoretically also contribute to this process as a result of increasing aridification and wind strength reflecting climate change in weathering records following a non-linear amplification. The findings refer to the fact that the impact of tectonism should also be taken into consideration in tracing past chemical weathering trends on timescales of hundreds of thousands (or millions) of years. This is because tectonic effects may impose on the CIA signal and distort it suggesting a potential bias in reconstructing paleoclimate change based only on this proxy from certain loess sequences associated with young orogenic belts. (C) 2010 Elsevier Ltd and INQUA. All rights reserved. LA - English DB - MTMT ER - TY - JOUR AU - Varga, György TI - Similarities among the Plio–Pleistocene terrestrial aeolian dust deposits in the World and in Hungary JF - QUATERNARY INTERNATIONAL J2 - QUATERN INT VL - 234 PY - 2011 IS - 1-2 SP - 98 EP - 108 PG - 11 SN - 1040-6182 DO - 10.1016/j.quaint.2010.09.011 UR - https://m2.mtmt.hu/api/publication/1456573 ID - 1456573 N1 - Megjegyzés-24852822 Megjegyzés-22375090 Z9: 2 WC: Geography, Physical; Geosciences, Multidisciplinary Cited By :33 Export Date: 27 October 2020 Correspondence Address: Varga, G.Budaörsi út 45, H-1112 Budapest, Hungary; email: gyoker@gamma.ttk.pte.hu LA - English DB - MTMT ER - TY - JOUR AU - Újvári, Gábor AU - Kovács, János AU - Varga, György AU - Raucsik, Béla AU - Markovic, SB TI - Dust flux estimates for the Last Glacial Period in East Central Europe based on terrestrial records of loess deposits: a review JF - QUATERNARY SCIENCE REVIEWS J2 - QUATERN SCI REV VL - 29 PY - 2010 IS - 23-24 SP - 3157 EP - 3166 PG - 10 SN - 0277-3791 DO - 10.1016/j.quascirev.2010.07.005 UR - https://m2.mtmt.hu/api/publication/1361069 ID - 1361069 N1 - Geodetic and Geophysical Research Institute of the Hungarian Academy of Sciences, Csatkai Endre u. 6-8., H-9400 Sopron, Hungary Department of Geology, University of Pécs, Ifjúság u. 6., H-7624 Pécs, Hungary Department of Earth and Environmental Sciences, University of Pannonia, Egyetem u. 10., H-8200 Veszprém, Hungary Department of Physical Geography, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia Cited By :76 Export Date: 22 May 2022 CODEN: QSRED Correspondence Address: Újvári, G.; Geodetic and Geophysical Research Institute of the Hungarian Academy of Sciences, Csatkai Endre u. 6-8., H-9400 Sopron, Hungary; email: ujvari@ggki.hu LA - English DB - MTMT ER - TY - JOUR AU - Újvári, Gábor AU - Raucsikné Varga, Andrea Beáta AU - Balogh-Brunstad, Zs TI - Origin, weathering, and geochemical composition of loess in southwestern Hungary JF - QUATERNARY RESEARCH J2 - QUATERNARY RES VL - 69 PY - 2008 IS - 3 SP - 421 EP - 437 PG - 17 SN - 0033-5894 DO - 10.1016/j.yqres.2008.02.001 UR - https://m2.mtmt.hu/api/publication/1130631 ID - 1130631 LA - English DB - MTMT ER - TY - JOUR AU - Sümegi, Pál AU - Molnár, Mihály AU - Sudár Sándorné Svingor, Éva AU - Szántó, Andrea Zsuzsanna AU - Hum, L AU - Gulyás, Sándor TI - Results of radiocarbon analysis of Upper Weichselian loess sequences from Hungary JF - RADIOCARBON J2 - RADIOCARBON VL - 49 PY - 2007 IS - 2 SP - 1023 EP - 1030 PG - 6 SN - 0033-8222 DO - 10.1017/S0033822200042880 UR - https://m2.mtmt.hu/api/publication/1183257 ID - 1183257 N1 - University of Szeged, Department of Geology and Paleontology, Egyetem u. 2-6, 6722 Szeged, Hungary Institute of Nuclear Research of Hungarian Academy of Sciences, Laboratory of Environmental Studies, Bem tér 18/C, 4026 Debrecen, Hungary Cited By :10 Export Date: 22 May 2022 CODEN: RACAA Correspondence Address: Sümegi, P.; University of Szeged, Egyetem u. 2-6, 6722 Szeged, Hungary; email: sumegi@geo.u-szeged.hu LA - English DB - MTMT ER -