Fast evolving conduits in clay-bonded sandstone: Characterization, erosion processes and significance for the origin of sandstone landforms

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F12%3A10128248" target="_blank" >RIV/00216208:11310/12:10128248 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.geomorph.2012.07.028" target="_blank" >http://dx.doi.org/10.1016/j.geomorph.2012.07.028</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.geomorph.2012.07.028" target="_blank" >10.1016/j.geomorph.2012.07.028</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fast evolving conduits in clay-bonded sandstone: Characterization, erosion processes and significance for the origin of sandstone landforms

Popis výsledku v původním jazyce

In Strelec Quarry, the Czech Republic, an underground conduit network >300 m long with a volume of similar to 10(4) m(3) and a catchment of 7 km(2) developed over 5 years by groundwater flow in Cretaceous marine quartz sandstone. Similar landforms at natural exposures (conduits, slot canyons, undercuts) are stabilized by case hardening and have stopped evolving. The quarry offers a unique opportunity to study conduit evolution in sandstone at local to regional scales, from the initial stage to maturity,and to characterize the erosion processes which may form natural landforms prior to stabilization. A new technique was developed to distinguish erodible and non-erodible sandstone surfaces. Based on measurements of relative erodibility, drilling resistance, ambient and water-saturated tensile strength (TS) at natural and quarry exposures three distinct kinds of surfaces were found. 1) Erodible sandstone exposed at similar to 60% of surfaces in quarry. This sandstone loses as much as 99%

Název v anglickém jazyce

Fast evolving conduits in clay-bonded sandstone: Characterization, erosion processes and significance for the origin of sandstone landforms

Popis výsledku anglicky

In Strelec Quarry, the Czech Republic, an underground conduit network >300 m long with a volume of similar to 10(4) m(3) and a catchment of 7 km(2) developed over 5 years by groundwater flow in Cretaceous marine quartz sandstone. Similar landforms at natural exposures (conduits, slot canyons, undercuts) are stabilized by case hardening and have stopped evolving. The quarry offers a unique opportunity to study conduit evolution in sandstone at local to regional scales, from the initial stage to maturity,and to characterize the erosion processes which may form natural landforms prior to stabilization. A new technique was developed to distinguish erodible and non-erodible sandstone surfaces. Based on measurements of relative erodibility, drilling resistance, ambient and water-saturated tensile strength (TS) at natural and quarry exposures three distinct kinds of surfaces were found. 1) Erodible sandstone exposed at similar to 60% of surfaces in quarry. This sandstone loses as much as 99%

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Geomorphology

ISSN

0169-555X

e-ISSN

—

Svazek periodika

177

Číslo periodika v rámci svazku

prosinec

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

16

Strana od-do

178-193

Kód UT WoS článku

000311462500014

EID výsledku v databázi Scopus

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