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Source karstique

Une source émergeant du calcaire karstifié.

Point auquel un cours d’eau souterrain atteint la surface si le cours d’eau n’a pas d’eaux de surface connues.

Photo: Glacier de Werenskjold (Spitzberg) Arch. ZBPiM

Types de karst de printemps :

  • EXSURGENCE – point auquel un cours d’eau souterrain atteint la surface si le cours d’eau n’a pas d’amont connu en surface.
  • RESURGENCE – point auquel un cours d’eau souterrain atteint la surface et devient un cours d’eau de surface.

Dans la littérature européenne, le terme est réservé à la réémergence d’un cours d’eau qui a coulé plus tôt en amont.

Photo: 1- substrat rocheux, 2- sédiments glaciaires ou fluvioglaciaires, 3-glaciers, 4- cascades, 5- cours d’eau glaciaire

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