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5. Comparability of heavy mineral data – The first interlaboratory round robin test

Author

Dunkl, István, von Eynatten, Hilmar, Andò, Sergio, Lünsdorf, Keno, Morton, Andrew, Alexander, Bruce, Aradi, László, Augustsson, Carita, Bahlburg, Heinrich, Barbarano, Marta, Benedictus, Aukje, Berndt, Jasper, Bitz, Irene, Boekhout, Flora, Breitfeld, Tim, Cascalho, João, Costa, Pedro J.M., Ekwenye, Ogechi, Fehér, Kristóf, Flores-Aqueveque, Valentina, Führing, Philipp, Giannini, Paulo, Goetz, Walter, Guedes, Carlos, Gyurica, György, Hennig-Breitfeld, Juliane, Hülscher, Julian, Jafarzadeh, Mahdi, Jagodziński, Robert, Józsa, Sándor, Kelemen, Péter, Keulen, Nynke, Kovacic, Marijan, Liebermann, Christof, Limonta, Mara, Lužar-Oberiter, Borna, Markovic, Frane, Melcher, Frank, Miklós, Dóra Georgina, Moghalu, Ogechukwu, Mounteney, Ian, Nascimento, Daniel, Novaković, Tea, Obbágy, Gabriella, Oehlke, Mathias, Omma, Jenny, Onuk, Peter, Passchier, Sandra, Pfaff, Katharina, Lincoñir, Luisa Pinto, Power, Matthew, Razum, Ivan, Resentini, Alberto, Sági, Tamás, Salata, Dorota, Salgueiro, Rute, Schönig, Jan, Sitnikova, Maria, Sternal, Beata, Szakmány, György, Szokaluk, Monika, Thamó-Bozsó, Edit, Tóth, Ágoston, Tremblay, Jonathan, Verhaegen, Jasper, Villaseñor, Tania, Wagreich, Michael, Wolf, Anna, and Yoshida, Kohki

Published
2020
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7. The earliest unambiguous Neanderthal engravings on cave walls: La Roche-Cotard, Loire Valley, France

Author

Marquet, Jean-Claude, primary, Freiesleben, Trine Holm, additional, Thomsen, Kristina Jørkov, additional, Murray, Andrew Sean, additional, Calligaro, Morgane, additional, Macaire, Jean-Jacques, additional, Robert, Eric, additional, Lorblanchet, Michel, additional, Aubry, Thierry, additional, Bayle, Grégory, additional, Bréhéret, Jean-Gabriel, additional, Camus, Hubert, additional, Chareille, Pascal, additional, Egels, Yves, additional, Guillaud, Émilie, additional, Guérin, Guillaume, additional, Gautret, Pascale, additional, Liard, Morgane, additional, O’Farrell, Magen, additional, Peyrouse, Jean-Baptiste, additional, Thamó-Bozsó, Edit, additional, Verdin, Pascal, additional, Wojtczak, Dorota, additional, Oberlin, Christine, additional, and Jaubert, Jacques, additional

Published
2023
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8. Obliquity‐driven mountain permafrost‐related fluvial magnetic susceptibility cycles in the Quaternary mid‐latitude long‐term (2.5 Ma) fluvial Maros Fan in the Pannonian Basin

Author

Püspöki, Zoltán, primary, Gibbard, Philip L., additional, Kiss, László Ferenc, additional, McIntosh, Richard W., additional, Thamó‐Bozsó, Edit, additional, Krassay, Zita, additional, Szappanos, Bálint, additional, Maigut, Vera, additional, Kovács, Péter, additional, Karácsony, Dominik, additional, Stercel, Ferenc, additional, Visnovitz, Ferenc, additional, Demény, Krisztina, additional, Bereczki, László, additional, Szőcs, Teodóra, additional, Rotár‐Szalkai, Ágnes, additional, and Fancsik, Tamás, additional

Published
2023
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9. The earliest unambiguous Neanderthal engravings on cave walls:La Roche-Cotard, Loire Valley, France

Author

Marquet, Jean Claude, Freiesleben, Trine Holm, Thomsen, Kristina Jørkov, Murray, Andrew Sean, Calligaro, Morgane, Macaire, Jean Jacques, Robert, Eric, Lorblanchet, Michel, Aubry, Thierry, Bayle, Grégory, Bréhéret, Jean Gabriel, Camus, Hubert, Chareille, Pascal, Guillaud, Émilie, Guérin, Guillaume, Gautret, Pascale, Liard, Morgane, O’Farrell, Magen, Peyrouse, Jean Baptiste, Thamó-Bozsó, Edit, Verdin, Pascal, Wojtczak, Dorota, Oberlin, Christine, Jaubert, Jacques, Marquet, Jean Claude, Freiesleben, Trine Holm, Thomsen, Kristina Jørkov, Murray, Andrew Sean, Calligaro, Morgane, Macaire, Jean Jacques, Robert, Eric, Lorblanchet, Michel, Aubry, Thierry, Bayle, Grégory, Bréhéret, Jean Gabriel, Camus, Hubert, Chareille, Pascal, Guillaud, Émilie, Guérin, Guillaume, Gautret, Pascale, Liard, Morgane, O’Farrell, Magen, Peyrouse, Jean Baptiste, Thamó-Bozsó, Edit, Verdin, Pascal, Wojtczak, Dorota, Oberlin, Christine, and Jaubert, Jacques

Abstract

Here we report on Neanderthal engravings on a cave wall at La Roche-Cotard (LRC) in central France, made more than 57±3 thousand years ago. Following human occupation, the cave was completely sealed by cold-period sediments, which prevented access until its discovery in the 19th century and first excavation in the early 20th century. The timing of the closure of the cave is based on 50 optically stimulated luminescence ages derived from sediment collected inside and from around the cave. The anthropogenic origin of the spatially-structured, non-figurative marks found within the cave is confirmed using taphonomic, traceological and experimental evidence. Cave closure occurred significantly before the regional arrival of H. sapiens, and all artefacts from within the cave are typical Mousterian lithics; in Western Europe these are uniquely attributed to H. neanderthalensis. We conclude that the LRC engravings are unambiguous examples of Neanderthal abstract design.

Published
2023

16. Fluvial magnetic susceptibility as a proxy for long‐term variations of mountain permafrost development in the Alp‐Carpathian region

Author

Püspöki, Zoltán, primary, Gibbard, Philip Leonard, additional, Nádor, Annamária, additional, Thamó‐Bozsó, Edit, additional, Sümegi, Pál, additional, Fogarassy‐Pummer, Tímea, additional, Mcintosh, Richard William, additional, Lantos, Miklós, additional, Tóth‐Makk, Ágnes, additional, Stercel, Ferenc, additional, Krassay, Zita, additional, Kovács, Péter, additional, Szőcs, Teodóra, additional, and Fancsik, Tamás, additional

Published
2021
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17. Comparability of heavy mineral data – The first interlaboratory round robin test

Author

Dunkl, I, von Eynatten, H, Andò, S, Lünsdorf, K, Morton, A, Alexander, B, Aradi, L, Augustsson, C, Bahlburg, H, Barbarano, M, Benedictus, A, Berndt, J, Bitz, I, Boekhout, F, Breitfeld, T, Cascalho, J, Costa, P, Ekwenye, O, Fehér, K, Flores-Aqueveque, V, Führing, P, Giannini, P, Goetz, W, Guedes, C, Gyurica, G, Hennig-Breitfeld, J, Hülscher, J, Jafarzadeh, M, Jagodziński, R, Józsa, S, Kelemen, P, Keulen, N, Kovacic, M, Liebermann, C, Limonta, M, Lužar-Oberiter, B, Markovic, F, Melcher, F, Miklós, D, Moghalu, O, Mounteney, I, Nascimento, D, Novaković, T, Obbágy, G, Oehlke, M, Omma, J, Onuk, P, Passchier, S, Pfaff, K, Lincoñir, L, Power, M, Razum, I, Resentini, A, Sági, T, Salata, D, Salgueiro, R, Schönig, J, Sitnikova, M, Sternal, B, Szakmány, G, Szokaluk, M, Thamó-Bozsó, E, Tóth, Á, Tremblay, J, Verhaegen, J, Villaseñor, T, Wagreich, M, Wolf, A, Yoshida, K, Dunkl, István, von Eynatten, Hilmar, Andò, Sergio, Lünsdorf, Keno, Morton, Andrew, Alexander, Bruce, Aradi, László, Augustsson, Carita, Bahlburg, Heinrich, Barbarano, Marta, Benedictus, Aukje, Berndt, Jasper, Bitz, Irene, Boekhout, Flora, Breitfeld, Tim, Cascalho, João, Costa, Pedro J. M., Ekwenye, Ogechi, Fehér, Kristóf, Flores-Aqueveque, Valentina, Führing, Philipp, Giannini, Paulo, Goetz, Walter, Guedes, Carlos, Gyurica, György, Hennig-Breitfeld, Juliane, Hülscher, Julian, Jafarzadeh, Mahdi, Jagodziński, Robert, Józsa, Sándor, Kelemen, Péter, Keulen, Nynke, Kovacic, Marijan, Liebermann, Christof, Limonta, Mara, Lužar-Oberiter, Borna, Markovic, Frane, Melcher, Frank, Miklós, Dóra Georgina, Moghalu, Ogechukwu, Mounteney, Ian, Nascimento, Daniel, Novaković, Tea, Obbágy, Gabriella, Oehlke, Mathias, Omma, Jenny, Onuk, Peter, Passchier, Sandra, Pfaff, Katharina, Lincoñir, Luisa Pinto, Power, Matthew, Razum, Ivan, Resentini, Alberto, Sági, Tamás, Salata, Dorota, Salgueiro, Rute, Schönig, Jan, Sitnikova, Maria, Sternal, Beata, Szakmány, György, Szokaluk, Monika, Thamó-Bozsó, Edit, Tóth, Ágoston, Tremblay, Jonathan, Verhaegen, Jasper, Villaseñor, Tania, Wagreich, Michael, Wolf, Anna, Yoshida, Kohki, Dunkl, I, von Eynatten, H, Andò, S, Lünsdorf, K, Morton, A, Alexander, B, Aradi, L, Augustsson, C, Bahlburg, H, Barbarano, M, Benedictus, A, Berndt, J, Bitz, I, Boekhout, F, Breitfeld, T, Cascalho, J, Costa, P, Ekwenye, O, Fehér, K, Flores-Aqueveque, V, Führing, P, Giannini, P, Goetz, W, Guedes, C, Gyurica, G, Hennig-Breitfeld, J, Hülscher, J, Jafarzadeh, M, Jagodziński, R, Józsa, S, Kelemen, P, Keulen, N, Kovacic, M, Liebermann, C, Limonta, M, Lužar-Oberiter, B, Markovic, F, Melcher, F, Miklós, D, Moghalu, O, Mounteney, I, Nascimento, D, Novaković, T, Obbágy, G, Oehlke, M, Omma, J, Onuk, P, Passchier, S, Pfaff, K, Lincoñir, L, Power, M, Razum, I, Resentini, A, Sági, T, Salata, D, Salgueiro, R, Schönig, J, Sitnikova, M, Sternal, B, Szakmány, G, Szokaluk, M, Thamó-Bozsó, E, Tóth, Á, Tremblay, J, Verhaegen, J, Villaseñor, T, Wagreich, M, Wolf, A, Yoshida, K, Dunkl, István, von Eynatten, Hilmar, Andò, Sergio, Lünsdorf, Keno, Morton, Andrew, Alexander, Bruce, Aradi, László, Augustsson, Carita, Bahlburg, Heinrich, Barbarano, Marta, Benedictus, Aukje, Berndt, Jasper, Bitz, Irene, Boekhout, Flora, Breitfeld, Tim, Cascalho, João, Costa, Pedro J. M., Ekwenye, Ogechi, Fehér, Kristóf, Flores-Aqueveque, Valentina, Führing, Philipp, Giannini, Paulo, Goetz, Walter, Guedes, Carlos, Gyurica, György, Hennig-Breitfeld, Juliane, Hülscher, Julian, Jafarzadeh, Mahdi, Jagodziński, Robert, Józsa, Sándor, Kelemen, Péter, Keulen, Nynke, Kovacic, Marijan, Liebermann, Christof, Limonta, Mara, Lužar-Oberiter, Borna, Markovic, Frane, Melcher, Frank, Miklós, Dóra Georgina, Moghalu, Ogechukwu, Mounteney, Ian, Nascimento, Daniel, Novaković, Tea, Obbágy, Gabriella, Oehlke, Mathias, Omma, Jenny, Onuk, Peter, Passchier, Sandra, Pfaff, Katharina, Lincoñir, Luisa Pinto, Power, Matthew, Razum, Ivan, Resentini, Alberto, Sági, Tamás, Salata, Dorota, Salgueiro, Rute, Schönig, Jan, Sitnikova, Maria, Sternal, Beata, Szakmány, György, Szokaluk, Monika, Thamó-Bozsó, Edit, Tóth, Ágoston, Tremblay, Jonathan, Verhaegen, Jasper, Villaseñor, Tania, Wagreich, Michael, Wolf, Anna, and Yoshida, Kohki

Abstract

Heavy minerals are typically rare but important components of siliciclastic sediments and rocks. Their abundance, proportions, and variability carry valuable information on source rocks, climatic, environmental and transport conditions between source to sink, and diagenetic processes. They are important for practical purposes such as prospecting for mineral resources or the correlation and interpretation of geologic reservoirs. Despite the extensive use of heavy mineral analysis in sedimentary petrography and quite diverse methods for quantifying heavy mineral assemblages, there has never been a systematic comparison of results obtained by different methods and/or operators. This study provides the first interlaboratory test of heavy mineral analysis. Two synthetic heavy mineral samples were prepared with considerably contrasting compositions intended to resemble natural samples. The contributors were requested to provide (i) metadata describing methods, measurement conditions and experience of the operators and (ii) results tables with mineral species and grain counts. One hundred thirty analyses of the two samples were performed by 67 contributors, encompassing both classical microscopic analyses and data obtained by emerging automated techniques based on electron-beam chemical analysis or Raman spectroscopy. Because relatively low numbers of mineral counts (N) are typical for optical analyses while automated techniques allow for high N, the results vary considerably with respect to the Poisson uncertainty of the counting statistics. Therefore standard methods used in evaluation of round robin tests are not feasible. In our case the ‘true’ compositions of the test samples are not known. Three methods have been applied to determine possible reference values: (i) the initially measured weight percentages, (ii) calculation of grain percentages using estimates of grain volumes and densities, and (iii) the best-match average calculated from the most reliable analyses f

Published
2020

21. High‐resolution stratigraphy of Quaternary fluvial deposits in the Makó Trough and the Danube‐Tisza Interfluve, Hungary, based on magnetic susceptibility data

Author

Püspöki, Zoltán, primary, Fogarassy‐Pummer, Tímea, additional, Thamó‐Bozsó, Edit, additional, Falus, György, additional, Cserkész‐Nagy, Ágnes, additional, Szappanos, Bálint, additional, Márton, Emő, additional, Lantos, Zoltán, additional, Szabó, Szilárd, additional, Stercel, Ferenc, additional, Tóth‐Makk, Ágnes, additional, Mcintosh, Richard W., additional, Szőcs, Teodóra, additional, Pálóczy, Péter, additional, and Fancsik, Tamás, additional

Published
2020
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23. Landscape changes, terraces and deposits of the river Pulvar (Fars, Iran): new perspectives and new chronology derived from OSL dating

Author

Rigot, Jean-Baptiste, Gondet, Sébastien, Mohammadkhani, Kourosh, Thamó-Bozsó, Edit, Gondet, Sébastien, Les résidences achéménides et leurs 'paradis': archéologie du paysage entre Perse et Caucase - - PARADISE2016 - ANR-16-FRAL-0011 - FRAL - VALID, ARCHEORIENT - Environnements et sociétés de l'Orient ancien (Archéorient), Université Lumière - Lyon 2 (UL2)-Centre National de la Recherche Scientifique (CNRS), Shahid Beheshti University, and ANR-16-FRAL-0011,PARADISE,Les résidences achéménides et leurs 'paradis': archéologie du paysage entre Perse et Caucase(2016)

Subjects
[SHS.ARCHI]Humanities and Social Sciences/Architecture, space management, [SHS.ARCHEO] Humanities and Social Sciences/Archaeology and Prehistory, [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory, [SHS.ENVIR] Humanities and Social Sciences/Environmental studies, [SHS.ENVIR]Humanities and Social Sciences/Environmental studies, [SHS.ARCHI] Humanities and Social Sciences/Architecture, space management
Abstract

International audience; This work is implemented in the frame of an Iranian-French archaeological project focusing on the area of Pasargades, an Achaemenid capital founded in the middle of the 1st mill. BC, located in an intermountaneous flooding plain in the Zagros. The goal of the project is to understand the regional human occupation, consequently deeper study of the large-scale Holocene landscape dynamics is necessary. This project is implemented under the agreement of the of the Iranian Centre for Archaeological Research (ICAR) with the support the Pasargadae World Heritage Site Office, the Shahid Beheshti University, the French National Agency for Research (ANR), and the French Foreign Ministry.Critical results concerning landscape changes in mountain environment has been produced. Especially for the Holocene river dynamics, three main phases have been characterized corresponding to three alluvial terraces (T1 to T3) mapped and analyzed over the whole studied area.A large scale phase of alluvial deposits occured from the beginning of the Holocene until middle or even recent Holocene. It is characterized by a thick fine sediment layer visible throughout the region which fills plains and valleys. This deposit was cuted as terrace 15 meters up to the river (T1). The controlling factors of this accumulation appears to be climate and geological structure. Holocene climatic optimum (8000-5000 BP) increased the erosion of previous levels and especially sandy-marly quaternary deposits. This would explain both the high carbonate content and the fineness of the particles, because the quaternary deposits consist partly on the same type of sediment. Furthermore the increase of the precipitations and the vegetation covering could explain the strong cutting of the T1 terrace. An Achaemenid dam built over the T1 terrace gives a relative date to this phenomena (at least 500 BC). OSL dating (results to be received during the first 2019 semester) will precise this event.The thickness and granularity of the sediments in T1 are stricking, in such an environment. The steepness of the side slopes, the former Pleistocene deposits and the presence of intermountain plains downstream of the studied section (Tang-e-Bolaghi gorge) could have played a decisive role. The second terrace (T2) is linked to reactivation of the alluvial dynamic, with coarser deposit in a context that seems relatively wet. The obtained C14 dates refer to the Islamic period as also demonstrated by a ceramic sherd found in a sequence in the plain of Pasargades. Third terrace (T3) is less visible but still present as benches along the present river bed sides. It shows the sub-actual river dynamics, in elevation perhaps due to the excessive puncture of alluvium in the Pulvar bed.

Published
2019

25. High‐resolution stratigraphy of a Quaternary fluvial deposit based on magnetic susceptibility variations (Jászság Basin, Hungary)

Author

Püspöki, Zoltán, primary, Fogarassy‐Pummer, Tímea, additional, Thamó‐Bozsó, Edit, additional, Berényi, Bernadett, additional, Cserkész‐Nagy, Ágnes, additional, Szappanos, Bálint, additional, Márton, Emő, additional, Lantos, Zoltán, additional, Nádor, Annamária, additional, Fancsik, Tamás, additional, Stercel, Ferenc, additional, Tóth‐Makk, Ágnes, additional, Mcintosh, Richard W., additional, Szőcs, Teodóra, additional, and Faragó, Enikő, additional

Published
2019
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26. High‐resolution stratigraphy of Quaternary fluvial deposits in the Makó Trough and the Danube‐Tisza Interfluve, Hungary, based on magnetic susceptibility data.

Author

Püspöki, Zoltán, Fogarassy‐Pummer, Tímea, Thamó‐Bozsó, Edit, Falus, György, Cserkész‐Nagy, Ágnes, Szappanos, Bálint, Márton, Emő, Lantos, Zoltán, Szabó, Szilárd, Stercel, Ferenc, Tóth‐Makk, Ágnes, Mcintosh, Richard W., Szőcs, Teodóra, Pálóczy, Péter, and Fancsik, Tamás

Subjects
MAGNETIC susceptibility, ALLUVIUM, GEOMAGNETIC reversals, MAGNETIC fields, METAMORPHIC rocks, FLUVIAL geomorphology
Abstract

High‐resolution stratigraphical architecture of a Quaternary fluvial succession in the Makó Trough and the Danube‐Tisza Interfluve (Pannonian Basin, Hungary) was investigated based on low field magnetic susceptibility (MS) measurements of seven fully cored boreholes, interpreted on the basis of the early postglacial magnetic susceptibility episodes previously described in the Körös and Jászság Basins. To confirm the reliability of the Dévaványa and Vésztő MS records (Körös Basin), the published magnetostratigraphical data were re‐investigated revealing the consequent arrangement of the MS peaks correlated with the Jingbian section and the short‐lived polarity reversals correlated with the Geomagnetic Instability Time Scale. The Quaternary climatic regime in the Körös Basin begins in the late Pliocene at 2.7 Ma. The correlation between the Körös Basin (Dévaványa) and Makó Trough (Mindszent) was confirmed by the multi‐proxy spectral investigation of the Mindszent section, revealing ~100‐ and ~41‐ka cycles in the MS, colour, logged spontaneous potential and resistivity records. Based on MS records of the seven boreholes, the base of the Quaternary can be identified irrespective of the facies, age and climatic phase of the lowermost Quaternary strata. By performing MS and log correlation of 131 boreholes, extended unconformities were detected in the Quaternary profiles in the Danube‐Tisza Interfluve (~1070±10, ~1920±10 and ~2300±10 ka) interpreted as sequence boundaries. Sedimentological and mineralogical data reveal a significant change at ~725–606 ka likely as a response to the 'mid‐Pleistocene transition', leading to the multiple branching of the Danube. SEM data revealed that ilmenite is also responsible for the development of the early postglacial magnetic susceptibility episodes. This increases the stratigraphical potential of fluvial successions with catchment area that contain metamorphic rocks. A gradual retreat of permafrost zone determines long‐term temporal trends of the climatically controlled fluvial magnetic susceptibility episodes, causing upward decreasing trends in the time series. [ABSTRACT FROM AUTHOR]

Published
2021
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27. High‐resolution stratigraphy of a Quaternary fluvial deposit based on magnetic susceptibility variations (Jászság Basin, Hungary).

Author

Püspöki, Zoltán, Fogarassy‐Pummer, Tímea, Thamó‐Bozsó, Edit, Berényi, Bernadett, Cserkész‐Nagy, Ágnes, Szappanos, Bálint, Márton, Emő, Lantos, Zoltán, Nádor, Annamária, Fancsik, Tamás, Stercel, Ferenc, Tóth‐Makk, Ágnes, Mcintosh, Richard W., Szőcs, Teodóra, and Faragó, Enikő

Subjects
MAGNETIC susceptibility, MAGNETIC declination, ALLUVIUM, STRATIGRAPHIC geology, MAGNETIC fields, FLUVIAL geomorphology, BOREHOLES
Abstract

Quaternary fluvial succession of the Jászság Basin (Hungary) was investigated, challenging the stratigraphical potential of 'early postglacial fluvial magnetic susceptibility episodes' recognized earlier in the Körös Basin. Low field magnetic susceptibility (MS) was measured in four boreholes from the basin centre and margins, representing channel and flood‐plain environments. Statistical distributions of MS data contain significant sets of outliers, regardless of facies conditions. The downhole distribution of these outliers produces magnetic susceptibility cycles. Supported by magnetic susceptibility cycles, high‐resolution facies correlations were performed reflecting a steady palaeohydrographical situation in the area, with a trunk river to the southeast and tributaries to the northwest. SEM‐EDX data revealed that ferromagnetic grains are responsible for the outlying MS values. The heterogeneous association of magnetite indicates a catchment area with volcanic and metamorphic rocks, while the group of small (<5 μm) magnetite octahedrons originated from nearby rhyolitic tuff formations. Magnetic grains were transported along channel belts, while small (<2 μm) magnetic particles were floated onto flood‐plains attached to clays. Climatic control is indicated by peaks at ~100 ka frequency in spectra of MS records and was also detected in palaeosol development and in flood frequency using the spectra of measured colour (~100 ka) and logged resistivity (~100 ka, ~41 ka), respectively. The climate‐dependent MS signal traceable far into the basin in both channel and flood‐plain environments can be summoned when the Quaternary fluvial succession of the Pannonian Basin is investigated, assuming some sources of magnetite in the catchment areas. According to the concept of 'fluvial magnetic susceptibility episodes', the early postglacial escape and spreading of the magnetite fraction control the MS signal that can support mapping of the unconformable Quaternary base and building of high‐resolution models of aquifers. [ABSTRACT FROM AUTHOR]

Published
2020
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30. Magnetic susceptibility as a possible correlation tool in Quaternary alluvial stratigraphy

Author

Püspöki, Zoltán, primary, Kovács, István J., additional, Fancsik, Tamás, additional, Nádor, Annamária, additional, Thamó‐Bozsó, Edit, additional, Tóth‐Makk, Ágnes, additional, Udvardi, Beatrix, additional, Kónya, Péter, additional, Füri, Judit, additional, Bendő, Zsolt, additional, Zilahi‐Sebess, László, additional, Stercel, Ferenc, additional, Gulyás, Ágnes, additional, and Mcintosh, Richard W., additional

Published
2016
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40. Distribution of relict permafrost features in the Pannonian Basin, Hungary.

Author

Fábián, Szabolcs Ákos, Kovács, János, Varga, Gábor, Sipos, György, Horváth, Zoltán, Thamó‐Bozsó, Edit, and Tóth, Gábor

Subjects
PERMAFROST, WEDGES, PLEISTOCENE Epoch, THERMOLUMINESCENCE dating, ATMOSPHERIC temperature
Abstract

Wedge structures and involutions suggest that Late Pleistocene frozen ground, either permafrost or deep seasonal frost, extended at least as far south as latitude 47° N in central Europe (the Pannonian Basin). Optically stimulated luminescence dating of the sand infill from a number of wedges indicates that emplacement of the sand infill occurred during the Late Pleistocene (22.2-15.7 ka). This suggests that during this time the mean annual air temperature was depressed by at least ∼15° C relative to the present. Either continuous or discontinuous permafrost was probably present in the north and NW of the Pannonian Basin. The subsequent thaw of frozen ground is indicated by the widespread occurrence of deformed sediments. The presence of soil (ground) wedges suggests conditions of deep seasonal frost probably existed during the period when climate ameliorated following the Last Permafrost Maximum ( LPM). [ABSTRACT FROM AUTHOR]

Published
2014
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