A nunatak (from
The term is typically used in areas where a permanent
Nunataks are generally angular and jagged, which hampers the formation of glacial ice on their tops, although snow can accumulate on them. They usually contrast strongly with the softer contours of the glacially eroded land after a glacier retreats.
Typically nunataks are the only places where plant life can survive on ice sheets or ice caps. Lifeforms on nunataks are frequently isolated by the surrounding ice or glacier, providing unique habitats.