Publisher © Czech Geological Survey, ISSN: 2336-5757 (online), 0514-8057 (print)
The Quaternary sediments of the Jedlka site in the České středohoří Mts. and their significance for slope movements analysis
Abstract
The area of the neovolcanic České středohoří Mts. is affected by numerous, fossil and active landslides and slow, creeping slope movements. The majority of landslides are associated with underlying soft, often clayey Upper Cretaceous rocks that disinegrate under the heavy neovolcanic load. The other less common group of landslides is associated with unhomogenities within neovolcanic massif. The volcano-sedimentary intercalations formed by zeolites (phillipsite) and smectite separate individual lava flows and they act as groundwater flow barrier and cause the landsliding. The thick slope sediments are in glacial conditions removed by solifluction and they may form the accumulation valley terraces that resemble "classic" river terraces but they almost do not contain any fluviatile sediments.
