En karst kilde, der stammer fra karstificeret kalksten.
Punkt, hvor en underjordisk strøm når overfladen, hvis strømmen ikke har nogen kendt overfladevand.
Types of karst spring:
- EXSURGENCE – point at which an underground stream reaches the surface if stream has no known surface headwaters.
- RESURGENCE – point at which an underground stream reaches the surface and becomes a surface stream.
In European litereature, the term is reserved for the reemergence of a stream that has earlier sunk upstream.
Photo: Werenskjold Glacier (Spitsbergen) Arch. ZBPiM