Numerical modeling of collapsed deep-seated gravitational slope deformations: Insights from the Veľká Fatra Mts., Western Carpathians

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F25%3AA2603BPD" target="_blank" >RIV/61988987:17310/25:A2603BPD - isvavai.cz</a>

Výsledek na webu

<a href="https://geologicacarpathica.com/browse/archive/?journal_article_no=38000" target="_blank" >https://geologicacarpathica.com/browse/archive/?journal_article_no=38000</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.31577/geolcarp.2025.01" target="_blank" >10.31577/geolcarp.2025.01</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical modeling of collapsed deep-seated gravitational slope deformations: Insights from the Veľká Fatra Mts., Western Carpathians

Popis výsledku v původním jazyce

Although deep-seated gravitational slope deformations (DSGSDs) are common, they are not highly investigated phenomena worldwide. In the Carpathian mountain range, they played an important role during the Quaternary evolution of typical core mountain ridges formed by a crystalline basement and surrounded by Mesozoic deposits. There is evidence that the majority of the largest catastrophic rock slope failures (collapses) in the Carpathians appeared precisely in areas affected by DSGSDs. Two DSGSD-affected slopes in the northeast part of the Veľká Fatra Mts. (Western Carpathians, Slovakia) have recently been subjected to a detailed investigation involving geomorphic mapping, remote sensing analysis, structural data collection, and numerical modeling. To improve our understanding of these gravity-induced processes, we performed a back-analysis of collapsed DSGSDs through a continuum-based, finite-element ­model composed using the RS2 code. Results show that these DSGSDs are strongly predisposed by regional geological structures given by the intersection of bedding planes, joint sets, and thrust faults. The numerical modeling approach and performed back-analysis have enabled a better view of the development of these deep-seated slope failures in the Veľká Fatra Mts. It suggests a high diversity of mechanisms leading to the origin of these DSGSD cases. The main causal factors influencing their development have been bedrock structure, the lithological composition (dolomite and limestone), thrust faults, and deep weathering of the rock mass. Both cases have deep basal shear zones, as well as a small number of series of gravitational faults associated with complex joint sets.

Název v anglickém jazyce

Numerical modeling of collapsed deep-seated gravitational slope deformations: Insights from the Veľká Fatra Mts., Western Carpathians

Popis výsledku anglicky

Although deep-seated gravitational slope deformations (DSGSDs) are common, they are not highly investigated phenomena worldwide. In the Carpathian mountain range, they played an important role during the Quaternary evolution of typical core mountain ridges formed by a crystalline basement and surrounded by Mesozoic deposits. There is evidence that the majority of the largest catastrophic rock slope failures (collapses) in the Carpathians appeared precisely in areas affected by DSGSDs. Two DSGSD-affected slopes in the northeast part of the Veľká Fatra Mts. (Western Carpathians, Slovakia) have recently been subjected to a detailed investigation involving geomorphic mapping, remote sensing analysis, structural data collection, and numerical modeling. To improve our understanding of these gravity-induced processes, we performed a back-analysis of collapsed DSGSDs through a continuum-based, finite-element ­model composed using the RS2 code. Results show that these DSGSDs are strongly predisposed by regional geological structures given by the intersection of bedding planes, joint sets, and thrust faults. The numerical modeling approach and performed back-analysis have enabled a better view of the development of these deep-seated slope failures in the Veľká Fatra Mts. It suggests a high diversity of mechanisms leading to the origin of these DSGSD cases. The main causal factors influencing their development have been bedrock structure, the lithological composition (dolomite and limestone), thrust faults, and deep weathering of the rock mass. Both cases have deep basal shear zones, as well as a small number of series of gravitational faults associated with complex joint sets.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Geologica Carpathica

ISSN

1335-0552

e-ISSN

1336-8052

Svazek periodika

—

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

20

Strana od-do

3-22

Kód UT WoS článku

001532985000001

EID výsledku v databázi Scopus

2-s2.0-105011838965