Debate over Grand Canyon's age runs deep
Thursday, April 11, 2013 - 17:31
in Paleontology & Archaeology
By Becky OskinLiveScienceSince two researchers suggested last year that the Grand Canyon was carved 70 million years ago (much older than the consensus of 6 million years), a rousing debate over the canyon's true age has played out at scientific meetings, through email,and, now, in the pages of a respected journal.In Thursday's issue of the journal Science, several geologists who've spent years ro...