Ice shelf
floating platform of ice on the ocean surface, at outlet of a glacier or ice sheet
An ice shelf is a large platform of ice, where a glacier flows down to a coastline. An ice shelf is usually very thick, usually 100 metres (330 ft) or more. Some ice shelves float on the water. Ice shelves that float are usually much thinner.
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The biggest areas of ice shelf are in Antarctica:
- Ross Ice Shelf 509,000 square kilometres (197,000 sq mi), as of 2013
- Filchner-Ronne Ice Shelf, 430,000 square kilometres (170,000 sq mi)
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