Estavelle
An Estavelle (from Romanic ) is a water hole, a karst phenomenon that is often observed in the poljes of the south-east European karst areas . Normally, water seeps into an estavelle and acts as a ponor (stream shrinkage). After heavy rainfall, the pressure conditions in the karst system change and the Estavelle takes on the function of a periodically pouring karst spring . Episodic floods can therefore occur in the lower reaches of the Estavellen.
Estavelle on the Radensko karst field in Slovenia
Creux-Genat in a dry valley near Chevenez in the Swiss canton of Jura
Seeweiherquelle on the Pegnitz , here as Ponor
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See also
Web links
Commons : Estavelle - collection of images, videos and audio files
literature
- Meyer's encyclopedic lexicon in 25 volumes . Volume Enz-Fiz , 1973
Individual evidence
- ^ Hans Murawski, Wilhelm Meyer: Geological dictionary . 12th edition. Spektrum, Heidelberg 2010, ISBN 978-3-8274-1810-4 ( online [accessed November 12, 2015]).
- ↑ Collective of authors: Lexicon of Geosciences , Volume II, Spektrum Akademischer Verlag, Heidelberg, Berlin 2000, ISBN 3-8274-0421-5 , p. 101