Big canyon entombed beneath Greenland's ice

Big canyon entombed beneath Greenland's ice

Newly discovered chasm helps explain island's lack of subglacial lakes

By Erin Wayman, 11:31 AM August 29, 2013

Greenland has its very own Grand Canyon, but tourists won’t see it anytime soon. The recently discovered 750-kilometer-long chasm is buried beneath the island’s thick ice.

Glaciologist Jonathan Bamber of the University of Bristol in England and colleagues uncovered the canyon while mapping Greenland’s subglacial terrain with ice-penetrating radar. The gorge — up to 800 meters deep, or about half as deep as the Grand Canyon — stretches from central Greenland to the island’s northeast coast. A r...

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