At -69.184611, -68.124276 (just east of the Bugge Islands) there is a triangular ice shelf. On satellite images (as seen on Google/Bing maps) you can see it is riddled with --for lack of a clearer description-- chunks of ice that are either ribbed or smooth.
What are these chunks? And how are they formed?
I think both types of chunks might be created by the glaciers flowing toward the coast; as seen at -69.214204, -67.055682 (mostly ribbed):
and at -69.315307, -67.625613 (mostly smooth):
But how is there a difference between the two?