Could the Colorado River Once Have Flowed into the Labrador Sea?

In the November issue of GSA Today, James W. Sears of the University of Montana in Missoula advocates a possible Canadian connection for the early Miocene Grand Canyon by arguing for the existence of a "super-river" traceable from headwaters in the southern Colorado Plateau through a proto–Grand Canyon to a delta in the Labrador Sea.

Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...