Pohyb skalních věží u Holštejna na severním okraji Moravského krasu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F25%3A10169889" target="_blank" >RIV/00025798:_____/25:10169889 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.5817/GVMS2025-39968" target="_blank" >https://doi.org/10.5817/GVMS2025-39968</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5817/GVMS2025-39968" target="_blank" >10.5817/GVMS2025-39968</a>

Jazyk výsledku

čeština

Název v původním jazyce

Pohyb skalních věží u Holštejna na severním okraji Moravského krasu

Popis výsledku v původním jazyce

článek řeší problematiku vyklápění skalních věží v Holštejně v severní části Moravského krasu na základě orientační analýzy strukturních prvků.

Název v anglickém jazyce

Toppling of rock towers near Holštejn on the northern edge of the Moravian Karst

Popis výsledku anglicky

Rock towers are in the Moravian Karst quite a rare phenomenon. The biggest group of sevenis situated west of the Holštejn village near the Vaňous walls in the half blind valley of theBílá voda stream. Surrounding area is made up of the Vilémovice Limestone of Frasnianage, which are folded into SW steeply inclined folds with subhorizontal fold axes, verygently dipping towards SSE. Three systems of cleavage were detected in the locality. Themost prominent cleavage system K0 is NE-SW striking moderately dipping towards SW.Based on the orientation, it is likely that this system is the axial cleavage of the main folds.The other two cleavage systems are K1 and K2, which have very similar orientation. Bothare W-E striking, dipping towards S, K2 is slightly steeper than K1. All rock towers showsigns of toppling. This was proven via an orientation analysis of the two cleavage systemsK1 and K2. More traditional bedding planes could not have been used, because there werenone detected in any of the towers and because they are folded, they would be unreliableanyway. These two cleavage systems have an almost constant angle of 16o +-4o between themand can be therefore used as a rotation gauge instead. The rotation angle of these towersincreases more or less systematically downslope up to 20o. The mean rotation axes for bothcleavages are the same and have a very similar orientation as the NNE-SSW striking fault.Two structures control this toppling: the NNE-SSW striking fault system, which is the mainsubvertical separation plane of the towers forming a pronounced crest above the towers andbedding planes generally dipping gently towards E, which served as a &quot;basal&quot; plane of thelimestones block on which they toppled. Opening of fault planes was detected also in theSonda pod Jedničkou cave system located SW of the rock towers in the same slope. This, incombination with several small warm air exhalation spots near the crest around the rocktowers, suggests quite a deep reach of the slope deformation (40 meters). This was possiblebecause the Bílá voda stream valley was originally empty with much higher and steeperslopes than today and was subsequently filled by Quaternary sediments.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

<a href="/cs/project/SS02030023" target="_blank" >SS02030023: Horninové prostředí a suroviny</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Geologické výzkumy na Moravě a ve Slezsku

ISSN

1212-6209

e-ISSN

2336-4378

Svazek periodika

32

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

17-21

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-105019944673