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Structure and dynamics of Biela Skala deep-seated gravitational slope deformation in central Slovakia volcanic field.

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Title: Structure and dynamics of Biela Skala deep-seated gravitational slope deformation in central Slovakia volcanic field.
Authors: Toločka, Andrius1,2 (AUTHOR) andrius.tolocka@osu.cz
Source: Natural Hazards. Dec2025, Vol. 121 Issue 19, p22519-22547. 29p.
Subject Terms: *Volcanic fields, *Geomorphology, *Landslide hazard analysis, *Geologic faults, *Computer simulation, *Landslides, *Cliffs
Geographic Terms: Slovakia
Abstract: Deep-seated gravitational slope deformations (DSGSDs) are significant geomorphological features that shape mountainous landscapes and pose considerable hazards to infrastructure and communities. While their evolution in sedimentary terrains has been widely studied, DSGSDs in volcanic rock massifs remain insufficiently explored. This study investigates the Biela Skala DSGSD in the Vtáčnik Mts., part of the Central Slovakia Volcanic Field, characterized by andesitic formations overlying softer, sedimentary coal-bearing units. The research focuses on the geological predispositions, kinematic mechanisms, and evolutionary processes influencing this complex mass movement. An integrated approach combining geomorphic field investigations, remote sensing and numerical modeling was employed to reconstruct the development of the DSGSD and assess its controlling factors. Finite element modeling identified critical shear zones, particularly along the contact between andesitic breccias and overlying pyroclastic-epiclastic layers, and quantified displacement magnitudes exceeding 2 m that correlate with mapped scarps. These findings confirm that tectonic uplift, the complex layering of volcanic units, and active neotectonic faulting collectively enhance slope instability by concentrating gravitational forces in zones of inherent weakness, especially within softer claystone and pyroclastic layers. This study refines the morphostructural framework of the Biela Skala DSGSD, advancing our understanding of slope deformation in neo-volcanic regions and providing a foundation for further kinematic analysis of DSGSDs in similar lithostratigraphic and structural settings. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
FullText Text:
  Availability: 0
Header DbId: enr
DbLabel: Energy & Power Source
An: 189590767
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Structure and dynamics of Biela Skala deep-seated gravitational slope deformation in central Slovakia volcanic field.
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  Data: <searchLink fieldCode="AR" term="%22Toločka%2C+Andrius%22">Toločka, Andrius</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> andrius.tolocka@osu.cz</i>
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  Data: <searchLink fieldCode="JN" term="%22Natural+Hazards%22">Natural Hazards</searchLink>. Dec2025, Vol. 121 Issue 19, p22519-22547. 29p.
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  Label: Subject Terms
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  Data: *<searchLink fieldCode="DE" term="%22Volcanic+fields%22">Volcanic fields</searchLink><br />*<searchLink fieldCode="DE" term="%22Geomorphology%22">Geomorphology</searchLink><br />*<searchLink fieldCode="DE" term="%22Landslide+hazard+analysis%22">Landslide hazard analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Geologic+faults%22">Geologic faults</searchLink><br />*<searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br />*<searchLink fieldCode="DE" term="%22Landslides%22">Landslides</searchLink><br />*<searchLink fieldCode="DE" term="%22Cliffs%22">Cliffs</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Slovakia%22">Slovakia</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Deep-seated gravitational slope deformations (DSGSDs) are significant geomorphological features that shape mountainous landscapes and pose considerable hazards to infrastructure and communities. While their evolution in sedimentary terrains has been widely studied, DSGSDs in volcanic rock massifs remain insufficiently explored. This study investigates the Biela Skala DSGSD in the Vtáčnik Mts., part of the Central Slovakia Volcanic Field, characterized by andesitic formations overlying softer, sedimentary coal-bearing units. The research focuses on the geological predispositions, kinematic mechanisms, and evolutionary processes influencing this complex mass movement. An integrated approach combining geomorphic field investigations, remote sensing and numerical modeling was employed to reconstruct the development of the DSGSD and assess its controlling factors. Finite element modeling identified critical shear zones, particularly along the contact between andesitic breccias and overlying pyroclastic-epiclastic layers, and quantified displacement magnitudes exceeding 2 m that correlate with mapped scarps. These findings confirm that tectonic uplift, the complex layering of volcanic units, and active neotectonic faulting collectively enhance slope instability by concentrating gravitational forces in zones of inherent weakness, especially within softer claystone and pyroclastic layers. This study refines the morphostructural framework of the Biela Skala DSGSD, advancing our understanding of slope deformation in neo-volcanic regions and providing a foundation for further kinematic analysis of DSGSDs in similar lithostratigraphic and structural settings. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=189590767
RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1007/s11069-025-07691-5
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 29
        StartPage: 22519
    Subjects:
      – SubjectFull: Volcanic fields
        Type: general
      – SubjectFull: Geomorphology
        Type: general
      – SubjectFull: Landslide hazard analysis
        Type: general
      – SubjectFull: Geologic faults
        Type: general
      – SubjectFull: Computer simulation
        Type: general
      – SubjectFull: Landslides
        Type: general
      – SubjectFull: Cliffs
        Type: general
      – SubjectFull: Slovakia
        Type: general
    Titles:
      – TitleFull: Structure and dynamics of Biela Skala deep-seated gravitational slope deformation in central Slovakia volcanic field.
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            NameFull: Toločka, Andrius
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          Dates:
            – D: 01
              M: 12
              Text: Dec2025
              Type: published
              Y: 2025
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              Value: 121
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              Value: 19
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            – TitleFull: Natural Hazards
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