0383272 - ÚSMH 2013 RIV NL eng J - Journal Article
Bruthans, J. - Svetlik, D. - Soukup, J. - Schweigstillová, Jana - Válek, Jan - Sedláčková, M. - Mayo, A.L.
Fast evolving conduits in clay-bonded sandstone: Characterization, erosion processes and significance for the origin of sandstone landforms.
Geomorphology. Roč. 177, December (2012), s. 178-193. ISSN 0169-555X. E-ISSN 1872-695X
R&D Projects: GA AV ČR IAA300130806
Institutional support: RVO:67985891 ; RVO:68378297
Keywords : sandstone * erosion * piping * tensile strength * conduit * landform
Subject RIV: DA - Hydrology ; Limnology
Impact factor: 2.552, year: 2012

In Strelec Quarry, the Czech Republic, an underground conduit network a catchment of 7 km2 developed over 5 years by groundwater flow in Cretaceous marine quartz sandstone. Similar landforms at natural exposures are stabilized by case hardening and have stopped evolving. Natural landforms were probably formed very rapidly by overland flow, piping and possibly fluidization during or at the end of the glacial periods when sandstone was not yet protected by case hardening.
Permanent Link: http://hdl.handle.net/11104/0218434