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Gigantic iceberg A-68 that broke off Larsen ice shelf blocked by dense sea ice, surprising scientists


Scientists tracking a massive iceberg that broke free from Antarctica's Larsen C Ice Shelf last year say dense ice cover has so far prevented it from drifting far out to sea.

An animation showing its movement over the last few months reveals how the trillion-plus ton Iceberg A-68 has shifted as it's battered by ocean currents, tides, and winds in the Weddell Sea.

While the huge chunk of ice, estimated to be about the size of Delaware, has moved around some, the experts say its surroundings have kept it somewhat locked into place.

Iceberg A-68 is the sixth largest iceberg on record since scientists began keeping track, and its separation from the ice shelf sparked fears about its future impacts on global sea levels.

Despite all the activity in the Weddell Sea, 'its northern end has repeatedly been grounded in shallower water near Bawden Ice Rise,' according to Project Midas researchers, who have been monitoring the iceberg over the last year.

http://www.dailymail.co.uk

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