Saturday 26 July 2014
An iceberg is
a large piece of freshwater ice that has broken off a glacier or an ice shelf
and is floating freely in open water. It may subsequently become frozen into pack
ice (one form of sea ice). As it drifts into shallower waters, it may come into
contact with the seabed, a process referred to as seabed gouging by ice. Icebergs
generally range from 1 to 75 metres above
sea level and weigh 100,000 to 200,000 metric tons. The largest known iceberg
in the North Atlantic was 168 metres above sea level, reported by the USCG
icebreaker East Wind in 1958,
making it the height of a 55-story building. Source
