Tamás Végh

• Master of Science
• Eötvös Loránd University

The loess-paleosol sequences provide reliable information about the terrestrial paleoenvironment and the climate of the Pleistocene. The interpretation of the commonly used proxies, such as grain-size distribution, environmental magnetic measurements, and diffuse reflectance spectroscopy, may be biased due to the overlapping of different processes...

The understanding of how archaic humans have reacted to past extreme weather events, where they survived during periods of climatic deterioration, and when they repopulated, abandoned areas is a crucial topic in human evolution for exploring the processes of adaptation and extinction of hominins. The project DYNASTY aims to achieve an accurate and...

This work aims to introduce and test various semiquantitative field methods and environmental magnetic measurements to help prepare future planetary missions on Mars. For analog observations, paleosols of loess successions in various stages of soil development were investigated and were used as models to infer environmental change during environmen...

Toward the understanding of (post)pedogenic processes behind the peaks and lows of commonly used climate proxies Horváth, E1, Bradák, B2, Szeberényi, J3, Csonka, D1, Végh, T1, Novothny, Á1 1Department of Physical Geography, Institute of Geography and Earth Sciences, Eötvös Loránd University, Pázmány Péter st. 1/C, Budapest, H‐1117, Hungary, erzse...

The geomorphological characteristics of the loess succession at Malá nad Hronom (Slovakia) mean that it provides a valuable opportunity for the investigation of differences in soil formation in various topographic positions. Along with the semiquantitative characterization of the paleosols (on the basis of physical properties, texture, the characte...

Diffuse Reflectance Spectroscopy (DRS) is a rapid, relatively new method in Quaternary research to analyse sediments and paleosols. This method takes into account clay mineral content, amount of Fe-bearing minerals and grain size composition of samples, simultaneously. Different Quaternary sediment samples were chosen forcharacterization and compar...

The stratotype section of Paks brickyard provides the most detailed accessible loess-paleosol sequence from almost the entire Pleistocene in the middle part of the Carpathian Basin. The best and thickest loess archives of Hungary (Paks, Udvari-2A borehole) are preserved in this part of the basin and now two more drilling cores were deepened in this...

On the basis of a key model of the appearance of hematite and goethite in some Chinese and European loess successions, paleosols generally contain higher proportions of hematite formed by pedogenic processes during warm and humid interglacials, while loess contains sedimentary goethite deposited during colder, glacial periods. Rock magnetic measure...

A multi-proxy analysis, including grain size, magnetic susceptibility and the examination of stable isotopes of hypocoatings, was performed on the loess-paleosol succession at Hévízgyörk (Hungary). Field investigations suggested a continuous record of sedimentation and pedogenesis. However, after the identification of the Bag Tephra, it revealed th...

A multi-proxy analysis was performed on the loess-paleosol succession in Hévízgyörk (Hungary), which included grain size analysis, magnetic susceptibility, diffuse reflectance, micromorphology and the examination of stable isotopes from hypocoatings. Field investigations showed a continuous record of sedimentation and pedogenesis over the course of...

We describe magnetic fabric and depositional environments of aeolian (loess) deposits from Paks, Hungary, and develop a novel, complex conceptual sedimentation model based on grain size and low-field magnetic susceptibility anisotropy data. A plot of shape factor (magnetic fabric parameter) and dry deposition velocity estimated from grain-size reve...

Anisotropy of magnetic susceptibility (AMS) is a frequently applied method in sedimentology, especially in the determination of the orientation of transport processes. We present an analysis of magnetic fabric (MF) studies on loess. New aspects of fabric development reveal: i) The deposition of the aeolian sediments was controlled by gravity, low-e...