Sunday, January 31, 2010
Scablands, created by a Megaflood
About 15,000 years ago, in the waning millennia of the Ice Age, a vast lake known as Glacial Lake Missoula suddenly burst through the ice dam that plugged it at one end. In the space of just 48 hours, geologists believe, the collapse sent 500 cubic miles of water cascading across the Pacific Northwest, creating overnight such unusual landscapes as the scablands of eastern Washington.
It is all explained in "Mistery of the Megaflood" a Nova program (Video).