The above illustrations, showing two nunataks of very similar size, one in the Isles of Scilly at the time of the LGM, and the other near the eastern edge of the Greenland Icesheet today, prompt me to wonder what the nature of glacial deposits might be on up-glacier and down-glacier edges of the nunatak, and on its flanks.
Another small nunatak near the western edge of the Greenland Ice Sheet, showing massive arcuate or looped moraines on the up-glacier side and a single medial moraine on the down-glacier side separating the ice streams that have diverged and then converged again. Note the meltwater ponds sealed within the nunatak's bounding morainic ridges.
Another west Greenland nunatak, showing the typical down-glacier medial moraine and huge morainic ridges that cover almost the whole of the nunatak. Note the large impounded meltwater lake.
A group of four nunataks near the coast of SW Greenland. Here there is a good vegetation cover on the largest nunatak, which measures approx 4 kms x 5 kms. The moraines indicate very clearly what the ice movement directions are. Here the ice is streaming between the nunataks, and the regional ice movement direction (east-west) is disrupted by ice movement from SE towards NW, between the two largest nunataks. Movement is maintained, although the ice thickness may well be less than 100m.