Eos, Transactions American Geophysical Union

Cold trail

Authors

  • Anonymous


Abstract

Monolithic icebergs—with keels larger than those previously recorded—once drifted through the Fram Strait in transit to the North Atlantic from the Arctic Ocean, new evidence uncovered by an international team led by Naval marine geophysicists reveals. Acoustic images of Arctic iceberg scars left behind when the icebergs drifted into shallower waters perhaps about 20,000 years ago indicate the keels were 500-700 m or more deep, they report. The finding flies in the face of many scientists long-standing belief that such thick glaciers never flowed into the Arctic Ocean.

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