Arcades: Products of stress-controlled and discontinuity-related weathering

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10376487" target="_blank" >RIV/00216208:11310/18:10376487 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985831:_____/18:00489228

Výsledek na webu

<a href="https://doi.org/10.1016/j.earscirev.2018.03.012" target="_blank" >https://doi.org/10.1016/j.earscirev.2018.03.012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.earscirev.2018.03.012" target="_blank" >10.1016/j.earscirev.2018.03.012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Arcades: Products of stress-controlled and discontinuity-related weathering

Popis výsledku v původním jazyce

Weathering patterns on sandstone cliff faces and sloping surfaces were studied from the viewpoint of gravity induced stress combined with the presence of planar discontinuities in the rock. Critical evaluation of hundreds of photos taken in various regions around the world, numerical modelling using finite element method (including automatic stress-controlled element removal technique of erosion modelling), and physical in situ modelling of friable sandstone revealed the formation of a specific sub-group of weathering forms related to planar discontinuities. Due to their striking similarity with elements known from architecture, these pits are introduced as &quot;arcades&quot; or arcade-like forms. These pits and cavities vary in size but they are similar in shape, coalesced into &quot;trains&quot; along the discontinuities, and separated from each other by hourglass-shaped pillars. In their origin and geometry, these forms differ from widely known cavernous weathering forms such as honeycombs and tafoni. We have shown that arcade shape and size are controlled by the redistribution of gravity induced stress along planar discontinuities and the resulting stress shadows. The stress shadow zones along the discontinuities are characterized by material loss owing to various weathering and erosional mechanisms. Although overlooked as yet, stress-controlled weathering along discontinuities has a strong effect on rock surface morphology, and arcades can be taken as its principal example.

Název v anglickém jazyce

Arcades: Products of stress-controlled and discontinuity-related weathering

Popis výsledku anglicky

Weathering patterns on sandstone cliff faces and sloping surfaces were studied from the viewpoint of gravity induced stress combined with the presence of planar discontinuities in the rock. Critical evaluation of hundreds of photos taken in various regions around the world, numerical modelling using finite element method (including automatic stress-controlled element removal technique of erosion modelling), and physical in situ modelling of friable sandstone revealed the formation of a specific sub-group of weathering forms related to planar discontinuities. Due to their striking similarity with elements known from architecture, these pits are introduced as &quot;arcades&quot; or arcade-like forms. These pits and cavities vary in size but they are similar in shape, coalesced into &quot;trains&quot; along the discontinuities, and separated from each other by hourglass-shaped pillars. In their origin and geometry, these forms differ from widely known cavernous weathering forms such as honeycombs and tafoni. We have shown that arcade shape and size are controlled by the redistribution of gravity induced stress along planar discontinuities and the resulting stress shadows. The stress shadow zones along the discontinuities are characterized by material loss owing to various weathering and erosional mechanisms. Although overlooked as yet, stress-controlled weathering along discontinuities has a strong effect on rock surface morphology, and arcades can be taken as its principal example.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

<a href="/cs/project/GA16-19459S" target="_blank" >GA16-19459S: Vliv napětí daného gravitací na erozi pískovce: fyzikální a numerické modelování</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Earth-Science Reviews

ISSN

0012-8252

e-ISSN

—

Svazek periodika

180

Číslo periodika v rámci svazku

březen

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

26

Strana od-do

159-184

Kód UT WoS článku

000433645900009

EID výsledku v databázi Scopus

2-s2.0-85044967072