A geochemical database of volcanic glass compositions and back-scattered electron images from ignimbrites of the Bükk Foreland Volcanic Field, analysed at GEOMAR and Kiel University (Germany)

Description

This database is a compilation of published data (Karatson et al., 2022, 2025, 2026; Hencz et al., 2024) and unpublished data on the composition of volcanic glass from ignimbrites of the Bükk Foreland Volcanic Field (BFVF), including major, volatile (F, S, Cl) and trace elements, as well as distal samples provisionally related to these ignimbrites. Electron probe microanalytical (EPMA) data and back-scattered electron (BSE) images were obtained from rock fragments that had been crushed to less than 0.5 mm and mounted in epoxy resin at the GEOMAR Helmholtz Centre for Ocean Research in Kiel, Germany. Trace elements were analysed by laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) in the same specimens at the Institute of Earth Sciences at Kiel University (Kiel, Germany). All data are internally consistent and were obtained using similar analytical techniques; details can be found elsewhere (Portnyagin, 2026; Portnyagin et al., 2026). References: Hencz, M., Biró, T., Németh, K., Szakács, A., Portnyagin, M., Cseri, Z., Pécskay, Z., Szabó, C., Müller, S. and Karátson, D. (2024) Lithostratigraphic scheme of the Miocene silicic explosive volcanism of the Bükk Foreland Volcanic Area (Hungary): constraints from field volcanology and glass geochemistry. Journal of Volcanology and Geothermal Research, 445: 107960. https://doi.org/10.1016/j.jvolgeores.2023.107960 Karátson, D., Biró, T., Portnyagin, M., et al. (2022) Large-magnitude (VEI≥7) ‘wet’ explosive silicic eruption preserved a Lower Miocene habitat at the Ipolytarnóc Fossil Site, North Hungary. Scientific Reports, 12: 9743. https://doi.org/10.1038/s41598-022-13586-3 Karátson, D., Lahitte, P., Portnyagin, M., Cseri, Z., Kósik, S., Józsa, S., Vörös, F., Palotai, M., Kovács D., Biró, T., Nomade, S., Mandic, O., Frick, D.A. and Hencz, M. (2026) Multiple ignimbrite eruptions around 15 Ma in the North Pannonian Basin: volcanology, geochronology, and geochemistry of the Tar-Jató tuffs. Journal of Volcanology and Geothermal Research. https://doi.org/10.1016/j.jvolgeores.2026.108662 Karátson, D., Lahitte, P., Portnyagin, M., Palotai, M., Józsa, S., Márton, E., Tóth, E., Erdei, B., Nomade, S., Nemeth, K., Iván, L., Krasznai, M., Vörös, F., Biró, T., Paquette, J.-L., Hír, J., Prakfalvi, P., Kiss, J., Pécskay, Z. and Hencz, M. (2025) A 13.06 Ma widespread ignimbrite in the Pannonian Basin captured a snapshot of abrupt paleogeographic changes in Central Paratethys. Scientific Reports, 15: 23528. https://doi.org/10.1038/s41598-025-07002-9 Portnyagin, M., Thöner, M., Ponomareva, V. (2026) A version of electron probe microanalysis of volcanic glass at GEOMAR, Kiel (Germany), Mendeley Data, Version 2, doi: 10.17632/8fxcs7cnh6.2 Portnyagin, M., Garbe-Schönberg, D. and Frick, D.A. (2026) LA-ICP-MS tephra analysis at Kiel University, Mendeley Data, Version 1, https://data.mendeley.com/datasets/tzr659nhmd/1

Institutions

• GEOMAR Helmholtz Centre for Ocean Research Kiel

  Schleswig-Holstein, Kiel
• Eötvös Loránd University

  Budapest, Budapest

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