Study rebuts hypothesis that comets destroyed Clovis cultureBreaking News
tags: pre-Columbian America, Clovis culture, impact events, climate science, ScienceDaily
Jan. 30, 2013 — Rebutting a speculative hypothesis that comet explosions changed Earth's climate sufficiently to end the Clovis culture in North America about 13,000 years ago, Sandia lead author Mark Boslough and researchers from 14 academic institutions assert that other explanations must be found for the apparent disappearance.
"There's no plausible mechanism to get airbursts over an entire continent," said Boslough, a physicist. "For this and other reasons, we conclude that the impact hypothesis is, unfortunately, bogus."
In a December 2012 American Geophysical Union monograph, first available in January, the researchers point out that no appropriately sized impact craters from that time period have been discovered, nor have any unambiguously "shocked" materials been found....
comments powered by Disqus
- Fake News and Fervent Nationalism Got a Senator Tarred as a Traitor During WWI
- Debunking Viral Story, Art Historian Says ‘Allah’ Does Not Appear on Ancient Viking Garment
- Will Trump Be Remembered as the Worst President in History? Almost Half Think So
- Thank This Man For Your Last-Minute Halloween Costume
- Letters from young Obama show a man trying to find his way
- Thomas Childers says we’ve got the Nazis wrong in 5 different ways
- National security expert Tom Nichols: “Hey, I’m unstable” is a bad look for the president
- Fake news? It’s nothing new, says Trinity College Dublin historian
- Historian discovers early Reformation writings “hiding in plain sight”
- Victor Davis Hanson says we shouldn’t be rushing to war with North Korea