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Glossary of Karst and Cave Terms
Based on "A Lexicon of Cave and Karst Terminology with Special to Environmental Karst Hydrology" EPA/600/R-02/003, 2002, EPA: Washington, DC., Speleogenesis Glossary includes 2699 cave & karst terms
(French.) An intermittent resurgence or exsurgence, active only in wet seasons. May act alternatively as a swallow hole and as a rising according to ground-water conditions . Opening in karstic terrane which acts as a discharge spring during high potentiometric surface and as a swallet during low potentiometric surface. Sea estavelles are known to exist . Synonyms: (French.) estavelle; (German.) Estavelle; (Greek.) estavella; (Italian.) estavella; (Russian.) estavella; (Spanish.) estavela; (Turkish.) su batar cikari; (Yugoslavian.) estavela, ponor-rigalo.