Erzsébet Horváth

Eötvös Loránd University · Department of Physical Geography

This research employs a comprehensive approach, integrating meticulous field investigations, remote sensing data, and a machine learning methodology, to assess soil erosion susceptibility and identify controlling factors in the central region of Hungary, specifically around Uri and Mende which are covered by loess. 14 key factors influencing soil e...

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...

In this study, the Analytic Hierarchy Process (AHP) is applied to generate erosion susceptibility maps in four basins of Kalat-e-Naderi county, namely Archangan, Kalat, Qaratigan, and Chahchaheh basins, situated in northeast Iran. The Kalat-e Naderi region is characterized by a partial coverage of loess. Given the agricultural significance of loes...

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...

Erosion is a serious hazard to agricultural lands and infrastructure, especially in arid and semi-arid regions. We investigated gully erosion susceptibility in a semi-arid region in northeast Iran. The study area (Kalat-e-Naderi Basin) is partly covered by loess in the central areas of the basin as well as erosion-resistant rocks/formations mainly...

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...

Landslides can be mentioned as the most common geomorphic phenomenon as a result of the construction of dams and their reservoirs. In addition to the construction of dams, other anthropogenic factors such as cultivation in the lake vicinal lands, road construction near the dam, and transportation of heavy vehicles as well as some natural factors i...

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...

Soil erosion is one of the most important natural hazards which negatively affect crop production in agriculture by losing the nutrient components of soil (Jebur et al., 2014). Several factors could be responsible for the increased soil erosion rate. This study aims to determine soil erosion susceptibility zones using GIS and spatial analyst tool...

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...

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...

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...

Stable carbon and oxygen isotope composition of pedogenic carbonates were studied from the Quaternary loess-paleosol sequence of Sütt}o in Hungary to investigate genetic processes in a paleoenvironmental context and to distinguish subtypes. Bulk carbonate samples taken at 2 cm vertical resolution, and microscale secondary (authigenic) carbonates (c...

In Hungary, many loess/palaeosol sequences have been found to be discontinuous. In order to allow for correlations with other Quaternary records, reliable chronologies are needed. We therefore apply post-IR infrared (IR) stimulated luminescence (post-IR IRSL; pIRIR290) dating to the uppermost 20 m of the loess sequence at Paks. The pIRIR290 ages ar...

The over 150 years of Hungarian loess research can be divided into three main phases. (1) The first phase is the early times of the Hungarian loess research from the 1850s until the beginning of the 20th century. This was the time of recognition, definition of loess, and the birth of the first ideas about the origin of loess, following the internat...

A thorough rock- and palaeomagnetic investigation of an almost 13-m-thick Upper Pleistocene loess–palaeosol sequence (LPSS) outcropping near the village of Süttő in northern Hungary was conducted to obtain rock magnetic and palaeomagnetic-based chronostratigraphies. The results of our rock magnetic investigations indicate that the classical “Chines...

Present study provides a review of the latest results on fluvial and aeolian landscape evolution in Hungary achieved by our team during the last 20 years. – The Hungarian river terrace system and its chronology was described with special emphasise on the novel threshold concept. A revised terrace system was created by the compilation of novel terra...

The loess–paleosol record at Süttő provides an excellent high-resolution archive of climate and environmental changes. Loess deposits with a thickness of 20 m cover the travertine at Süttő, in the northern part of Hungary, next to the right bank of the Danube River. The loess sequence is intercalated with two greyish stratified horizons, three brow...

A climate cycle model was calculated using different methods (e.g., paleomagnetic, sedimentological and heavy mineral studies) on the loess sequence containing four paleosol and five loess layers in Cérna Valley. The model is based on the development of the sediment sequence created by the influence of the climatic, geological and geomorphological...

A sand dune intercalated by soil horizons was investigated using luminescence and radiocarbon dating methods, to determine the time of aeolian activity and soil formation in the north-eastern part of the Gödöllő Hills in Hungary. Optically stimulated luminescence (OSL) dating and Infrared stimulated luminescence (IRSL) dating of sand sized (100–200...

The loess-palaeosol sequence at Süttő , Hungary contains a high-resolution terrestrial archive of palaeoenvironmental changes. The sequence is about 20 m thick and overlies travertine which was dated using Uranium-series to 235-314 ka (Sierralta et al., in press). Imbedded with the loess are two greyish stratified horizons, three brownish steppe-l...

Anomalous fading of the infrared stimulated luminescence (IRSL) signal from the polymineral fine-grain and K-feldspar fractions of aeolian sediments from Hungary has been studied. The samples in this study have previously been dated using the multiple aliquot additive dose (MAAD) protocol to measure the IRSL signal. The IRSL measurements using MAAD...

The loess–paleosol sequences in Hungary provide an excellent Upper Pleistocene climate archive of the Carpathian Basin. Loess deposits up to 20m thick cover the Süttő travertine complex, located in the very northern part of Hungary, next to the right bank of the Danube River. The loess is intercalated with two weakly developed greyish horizons, two...

The Gödöllő Hills, a low-relief terrain within the Central Pannonian Basin in Hungary, is characterised by moderate tectonic deformation rates. Although typical tectonic landforms are not clearly recognisable in the study area, this paper succeeded in discriminating between tectonically controlled landforms and features shaped by fluvial erosion or...

Four paleosol layers indicating wet and moderate periods and five loess layers indicating dry and cold climate were separated by different methods. The following climate cycle model, based on the development of the sediment sequence created by the influence of climatic, geologic and geomorphologic phenomena, was established by detailed paleomagneti...

Quaternary landscape evolution of the Gödöllő Hills was governed by both structural and climate-related erosional processes. Considerable neotectonic deformation has been documented in the form of inversion of deep-seated earlier normal faults and transpressive reactivation of a syn- to post-rift transtensional strike-slip zone, the Tápió–Tóalmás Z...

TOPO-EUROPE addresses the 4-D topographic evolution of the orogens and intra-plate regions of Europe through a multidisciplinary approach linking geology, geophysics, geodesy and geotechnology. TOPO-EUROPE integrates monitoring, imaging, reconstruction and modelling of the interplay between processes controlling continental topography and related n...

This study aims at a new quantification of neotectonic deformation of the central part of the Pannonian Basin. We use terrace levels and associated travertine as well as speleothem data along the Danube River to quantify its incision rate and thus, estimate the amount and rate of uplift at the axis of the Hungarian Mountain Range (HMR).Several terr...

Topography of the terraced Danube Bend area indicates fast incision of the Danube River, which was followed by its tributaries dissecting deeply the former terrace levels. These surfaces are vertically bended along the river course, indicating antecedent incision of the Danube into the SW–NE trending Hungarian Mountain Range (HMR). Timing and rate...

Neotectonic deformation in the western and central part of the Pannonian Basin was investigated by means of surface and subsurface structural analyses, and geomorphologic observations. The applied methodology includes the study of outcrops, industrial seismic profiles, digital elevation models, topographic maps, and borehole data. Observations sugg...

The Gödöllö Hills are located east of Budapest, in the central part of the Pannonian Basin, Hungary. The upper 1 km is consisted of Upper Miocene to Pliocene, poorly lithified sand(stone), siltstone and claystone of lacustrine, delta or fluvial origin. These sediments are covered by Quaternary loess units with intercalated paleosols, dune and fluvi...

In this presentation, we will focus on new results (1) showing the influence of Plio-Quaternary structures on landscape evolution, mainly on drainage system; (2) describing geomorphic and geological indices which can reflect crustal deformation; (3) giving new time constraints on landscape evolution, denudation and sedimentation; (4) contributing t...

A very detailed Upper Pleistocene record is exposed in a loess/palaeosol sequence at the section at Albertirsa in Hungary. Luminescence dating was carried out to establish a more reliable chronological framework for the Hungarian loess record. The lowermost palaeosol of the section, probably an equivalent of the MF2 horizon at the Mende key section...

Two tephra horizons are known in the Middle and Upper Pleistocene loesses of the Carpathian Basin. The older Bag Tephra has been described from numerous loess outcrops in Hungary, whereas the younger Paks Tephra has been described only from the brickyard of Paks, in southern Hungary. The most characteristic heavy minerals in these horizons are vari...

 The Bag Tephra is a widespread tephra layer interbedded in Quaternary loess deposits along the Danubian valley of Hungary and Slovakia. Its age is poorly defined between 788 and 380 ka B.P. The glass and mineral composition – micropumice clasts of phono-tephrite and blocky shards of tephri-phonolite associated with two kinds of clinopyroxene, fass...

The application of both thermoluminescence and infrared stimulated luminescence dating to the extensively studied “classical” Hungarian loess/paleosol sequences from Basaharc, Mende, and Paks provides a reliable chronological framework and climatostratigraphic reconstruction for the last interglacial/glacial cycle. Based on this combined luminescen...

Several aspects of a tephra layer present in ten loess sections in Hungary and in Czechoslovakia were investigated: grain size, mafic mineral suites, and chemical composition of bulk samples as well as clinopyroxenes. The tephra is identical in all localities, and the name "Bag Tephra' was given to it. This tephra allows us to propose a new stratig...

From late Pliocene through Quaternary, the positive structural inversion of the extensional Pannonian basin has been taking place. The gradual build-up of compressional stresses triggered large-scale folding of the lithosphere resulting in differential vertical movements in the form of accelerated basin subsidence and basement uplift at the wavelen...