Origin and weathering of landslide material in a loess area: a geochemical study of the Kulcs landslide, Hungary

Udvardi, Beatrix; Kovàcs, István; Szabó, Csaba; Falus, György; Újvári, Gábor; Besnyi, Anikó; Bertalan, Éva; Budai, Ferenc; Horváth, Zsolt

doi:10.1007/s12665-016-6103-6

Cited by 13 publications

(10 citation statements)

References 35 publications

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“…Since about 50 % of slide mass lies above maximum reservoir level 2140 m, the continuous rainfall seepage will saturate the upper landslide mass and the stability of landslide will further reduce. Rainfall seepage contributes significantly to the slope deformation [47][48]. The relationship between stability coefficient, reservoir level fluctuation, and precipitation shows that the stability coefficient appears to lag behind the reservoir level (Fig.…”

Section: Stability Coefficient Analysismentioning

confidence: 96%

“…The reservoir impoundment has significantly altered the original geological conditions and enlarge the frequency of natural disasters, especially landslides [12]. The fluctuation zone undergoes wetting-drying cycles which will lead to deteriorating the slide mass and the sliding belt reflect the prime control over deformation and stability of landslide [13]. The stability and deformation behavior of a reservoir landslide is governed by external water loadings, pore pressure and soil properties [14][15].…”

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confidence: 99%

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Characterizing the Fundamental Controls on Deformation and Stability of an Active Reservoir Landslide, Southwest China

Kamran¹,

Hu²,

Hussain³

et al. 2022

Pol. J. Environ. Stud.

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Reservoir landslides are a common type of geological disasters in hydropower surroundings, which cause a severe socio-economic threat to human life [1]. Generally, narrow and steep valleys are prone to landslides [2-4]. Wavefront slopes in reservoir reservoir project area are greatly affected by water level changes and may fail easily [5-7]. For example, the catastrophic Vajont landslide in Italy 1963 and the Qianjianping landslide of China in 2003, both disaster events triggered by the variation of reservoir level [8-9].

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Section: Stability Coefficient Analysismentioning

confidence: 96%

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confidence: 99%

Characterizing the Fundamental Controls on Deformation and Stability of an Active Reservoir Landslide, Southwest China

Kamran¹,

Hu²,

Hussain³

et al. 2022

Pol. J. Environ. Stud.

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“…Earlier studies show that weathering processes affected the red clay. For this reason, clay minerals are the most important minerals in this situation [23]. Furthermore, carbonate precipitation is observable at the top of the sliding surface [27].…”

Section: Study Areamentioning

confidence: 99%

“…Landslides are frequent on these bluffs (Figure 1) [20][21][22]. One well-known bluff is located in Kulcs, a town built on a bluff over the Danube (Figure 1) [23]. According to earlier studies, the hydrogeological properties of Kulcs are influenced by both the water level of the Danube and the amount of rainfall [12,22].…”

Section: Introductionmentioning

confidence: 99%

“…The study area in: (a) Europe; and (b) Hungary. The rose colored areas are the loess-paleosol sequences, the red lines show the mass movements areas and the circle indicates the location of the study area, Kulcs[21]; (c) map of Kulcs, where red areas show the four moving blocks, with a picture as an example of a local landslide (modified after[23]); and (d) schematic sequence of the study area with the potential sliding surface, water table, clayey layer, sediment of the river and spring[29].…”

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The Role of Water and Weathering Processes in Landslides in Hungarian Loess Sediments

et al. 2023

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Loess-paleosol bluffs can be unstable, but in the course of urbanization, houses may be built in such locations to take advantage of the view. One factor affecting the stability of such bluffs is water, the role of which in mass movements is well established. In this study, the connection of mass movements to meteorological conditions, such as rainfall and subsequent water level changes, was researched using new statistical methods. The periodicity of the water level of the Danube was analyzed using wavelet spectrum analyses, while changepoint analysis was used to determine variations in the quantity of precipitation. These results were compared to the chronology of six mass movements in Kulcs, Hungary. This study also focused on the changes in geochemical properties of loess in different weather conditions (dry periods, wet periods, and flooding). The results showed that only two mass movements were connected to hydrological conditions, and in the other case human activity and geochemical changes may have been factors. The results of geochemical models created using PHREEQC showed calcite and kaolinite precipitation, and albite and dolomite dissolution as the main mineral changes over the course of a year. Albite was found to dissolve only in wet periods, and kaolinite precipitation was significant during flood periods.

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A Hydro-Chemo-Mechanical Analysis of the Slip Surface of Landslides in the Three Gorges Area of China

Gaire

Zhao

2018

Proceedings of GeoShanghai 2018 International Conference: Geoenvironment and Geohazard

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Origin and weathering of landslide material in a loess area: a geochemical study of the Kulcs landslide, Hungary

Cited by 13 publications

References 35 publications

Characterizing the Fundamental Controls on Deformation and Stability of an Active Reservoir Landslide, Southwest China

Characterizing the Fundamental Controls on Deformation and Stability of an Active Reservoir Landslide, Southwest China

The Role of Water and Weathering Processes in Landslides in Hungarian Loess Sediments

A Hydro-Chemo-Mechanical Analysis of the Slip Surface of Landslides in the Three Gorges Area of China

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