A set of phenomena and processes developing on the surface of and within a glacier as a result of ice melting and the action of flowing water, similar to the karst phenomena that develops in carbonate rocks.

Geological formations that originate from both of these environments show uncanny similarity. Glacial karst processes give rise to draining systems of a melting glacier.

The internal drainage system is composed of:

• moulins/glacier mills,
• wells,
• cascades
• channels
• corridors
• chambers
• karst springs

https://polarpedia.eu/en/glacial-karst/

@ International Association of Hydrogeologists

https://karst.iah.org/alpine-karst/07-tsanfleuron-glacier-karst