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Estavelle

In karst geology, estavelle or inversac is a ground orifice which, depending on weather conditions and season, can serve either as a sink or as a source of fresh water. It is a type of ponor or sinkhole.[1][2]

Creux-Genat, an intermittent karst estavelle between Chevenez and Porrentruy in the Ajoie, recorded on April 2nd, 2005 and April 17th, 2006.

References

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  1. ^ "Karstgeology: Estavelle". www.showcaves.com. Retrieved 24 April 2020.
  2. ^ Milanovic, Petar (2004). Water Resources Engineering in Karst. CRC Press. pp. 211–212. ISBN 978-0-203-49944-3. Retrieved 24 April 2020.
 

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