Nature Trail Hvozdnice
Ucovering the River Gravel from Ice Age
The right bank of the Hvozdnice river is uncovering very interesting memories of Ice Age in many places. In Opava and Hlučínsko region we can find some wandering stones and expressively modelled Hlučínská wold.
The continental glacier melting from the Scandinavia brought some blocks of northern rocks with it – granite, quartzite, porphyry, flints, etc. The shape of wandering (erratic) stones was made by its´ spalling and abrasion, which after the glaciers had melted, stayed on the same place. At the bottom of the glacier, there was aluminium, sandy, clay and gravel material which after the melting formed the lower moraine. The Saal glacier took to it´s bottom also basalt blocks near the Kamenná Muntain at Otice and brought it further to the south to Štáblovie and Dolní Životice.
The surface of the opposite river bank is a formation of fluvial gravel made by the Hvozdnice river. It is a remains of the river terrace that originated in the time of the saal glacier. The Saal moraine deposits are present on it and basalt blocks are falling from it occasionally, maybe not that visible from this stand. The moraine is very well visible also from the next stop. The slope clay form the upper part of the planted profile.
Odkryv štěrků
Říční štěrky
Useful information
Contact
Regional Authority of the Moravian – Silesian Region Department of the Environment and Agriculture 28. října 117, 702 18 Ostrava www.kr-moravskoslezsky.cz Telephone.: +420 595 622 297
Contact
Krajský úřad Moravskoslezského kraje
Odbor životního prostředí a zemědělství
28. října 117, Ostrava
Tel.:+420 595 622 297
http://www.kr-moravskoslezsky.cz
