The Arctic Ocean was once more of a big lake that drained into the Atlantic Ocean. "18.2 million years ago, something happened. Drawn by shifting tectonic plates, the strait began to widen. Slowly, over the course of hundreds of thousands of years, salt water from the Atlantic began flowing into the Arctic turning it into the ocean we know today."

This entry was published on June 25, 2007 at 02:00 pm.

Tags for this entry:  geography  arcticocean 

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