Earth Sciences Forum

sunsettommy · Joined: 09 Dec 2007 Posts: 10

New Clovis-Age Comet Impact Theory

EXCERPT:

Newswise — Two University of Oregon researchers are on a multi-institutional 26-member team proposing a startling new theory: that an extraterrestrial impact, possibly a comet, set off a 1,000-year-long cold spell and wiped out or fragmented the prehistoric Clovis culture and a variety of animal genera across North America almost 13,000 years ago.

Driving the theory is a carbon-rich layer of soil that has been found, but not definitively explained, at some 50 Clovis-age sites in North America that date to the onset of a cooling period known as the Younger Dryas Event.

http://www.newswise.com/articles/view/530208/