Mátyás Hencz

Institute of Earth Physics and Space Science

This paper presents the results from a geographic information systems (GIS) workflow, which was used to analyze the spatial distribution and temporal evolution of volcanoes in the Mio-Pleistocene monogenetic Bakony-Balaton Highland Volcanic Field (BBHVF), located in the Pannonian Basin, Hungary. Volcanism occurred during the tectonic inversion in a...

Units with extremely variable erodibility are typical in the succession of pyroclastic-dominated volcanic fields. Welded ignimbrites are usually resistant to erosion, thus, they often appear as positive landforms, i.e., mesas or tilted plateaus after millions of years of denudation. The Bükkalja Volcanic Area being part of the most extended foothil...

During Earth’s history, geosphere-biosphere interactions were often determined by momentary, catastrophic changes such as large explosive volcanic eruptions. The Miocene ignimbrite flare-up in the Pannonian Basin, which is located along a complex convergent plate boundary between Europe and Africa, provides a superb example of this interaction. In...

Structural hydroxyl content of volcanic quartz phenocrysts was investigated with unpolarized Fourier-transform infrared spectroscopy. The phenocrysts originated from five pyroclastic fallout deposits from the Bükk Foreland Volcanic Area (BFVA), Hungary, and two from the AD 1314 Kaharoa eruption (KH eruption), Okataina Volcanic Complex (Taupo Volcan...

Detailed investigation of a Lower Miocene Plinian pyroclastic sequence that crops out in the Bükk Foreland Volcanic Area (BFVA) in Northern Hungary is presented here. The studied eruptive products are part of a ca. 50 metres thick pyroclastic succession comprising of a basal ignimbrite that is covered by stratified pyroclastic unit including a topm...

The East Carpathian volcanic range experienced an along-arc, Late Miocene to Quaternary migration of eruptive activity during its ~11 Ma-long activity. Here, a novel and complex methodology is presented that yields new geochronological and geomorphological constraints on the evolution of the 20 volcanic edifices. New unspiked KAr ages either constr...

A Middle Miocene, ~8 m thick pyroclastic succession, reported from the Bükk Foreland Volcanic Area (BFVA) in Northern Hungary (Central Europe) specified here as the Jató Member, was produced by silicic phreatomagmatism (Phreatoplinian sensu lato). Two well-preserved outcrops ~8 km apart and inferred to be within ~10–50 km from source represent the...

We investigated two enigmatic depressions near Galaxias Fossae, Mars. In contrast to previous studies, we infer phreatomagmatic origin for both of them.

A fapados légitársaságoknak köszönhetően egyre szélesebb rétegek számára válnak elérhetővé olyan távoli területek, amelyekre korábban csak jelentős költségek vállalásával lehetett eljutni. Ezen területek közé tartozik a Spanyolországhoz tartozó Kanári-szigetek is. Tanulmányunkban egyrészt áttekintő földrajzi képet adunk magáról a Kanári-szigetekről...

A tanulmányban a Bakony–Balaton-felvidéki Vulkáni Terület (BBVT) legismertebb tanúhegyén, a Badacsonyon kibukkanó freatomagmás piroklasztit-sorozat első kvantitatív leírását és vulkanológiai értelmezését mutatjuk be. A piroklasztitok juvenilis / litikus törmelékeinek arányát pontszámlálásos módszerrel vizsgáltuk vágott kézipéldány-felszíneken. A fe...

I Ig gn ni im mb br ri it t ö ös ss sz zl le et t a az z e eg gr ri i " " T Tu uf fa ak kő ő-b bá án ny yá áb ba an n " " Az egri " Tufakőbányában " egy tipikus kalderaformáló kitörés során létrejött piroklasztit-összlet tárul fel, amely a Bükkalja vulkáni terület egyik legidősebb képződménye (Capaccioni et al., 1995). A rétegsor egy 20 cm állandó...