pack ice

Instead, the large chunks—the biggest of which are comparable in size to the area of Alaska—look like they’re jostling together, bumping and sliding against each other like pack ice in the Arctic Ocean.

These blocks, each about the size of Alaska, seem to have been sluggishly jostling against each other like broken pack ice on a pond or lake.

His groundbreaking interventions aboard the Belgica, a Belgian ship stuck fast in the pack ice for more than a year, saved many lives and prefigured established medical science by several decades.

Field ice is a term usually applied to frozen sea water floating in much looser form than pack ice.

To the north, pack-ice in variable amount is encountered before reaching the wide open ocean.

Towards evening the 'Aurora' turned back to open water and cruised along the pack-ice.

When the high wind blew off shore, there was no backswell, on account of the pack-ice to the north quelling the sea.

The north appeared to be filled with frozen sea though we could not be certain that it was not dense pack-ice.