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An isolated hill, knob, ridge, or peak of bedrock projecting prominently above the surface of a glacier and completely surrounded by glacial ice.



(an Eskimo word), an isolated rocky peak that projects above the surface of a glacier where the ice cover is relatively thin. Nunataks are common along the rim of the ice caps of Greenland and Antarctica.

References in periodicals archive ?
PhytoCellTec Nunatak is an aqueous extract of these cells, according to Mibelle.
2006, Using cosmogenic isotopes to interpret the landscape record of glaciation: Nunataks in Newfoundland: in, Knight, P.
The ACID-3 workshop had three objectives: 1) to describe advances in Atlantic Canada Ice Dynamics research since the first ACID meeting (Gosse, 2002), 2) to consider the Nunatak Hypothesis and evidence for biological refugia, posited for disjunct flora and fauna throughout Atlantic Canada, and 3) to evaluate output from the latest version of the University of Marne Ice Sheet Model (UMISM) and test its plausibility against conceptual models of Atlantic Canada ice dynamics.
0 ka, ii) that most highland areas in central, southern, and western Newfoundland were deglaciated within a 2 ka period following this, indicating a collapse of the Newfoundland ice sheet (with the exception of Big Level, a coastal highland in Gros Morne National Park which, in part, was deglaciated around 20 ka), and iii) that the Nunatak Hypothesis failed in all summit areas sampled (including two 'type localities' for the Nunatak Hypothesis--Big Level and St.