Study rebuts hypothesis that comets destroyed Clovis culturetags: 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
- How Americans Feel About Religious Groups
- Tea Party support linked to educational segregation, new study shows
- History of Philly Rests Under I-95
- Agreement aims to protect North Shore wrecks from looters
- Award-Winning Filmmaker Kevin McCann to Produce the First Film about the Easter Rising in Ireland
- It's official: 2014 AHA election results are in
- In new book UC Berkeley historian Waldo E. Martin, Jr. takes Black Panther Party's point of view
- Economics historian finds that real social mobility takes hundreds of years
- Historian Tim Furnish says liberals shouldn't be astonished that ISIS is stoning women to death -- "in many Muslim countries ... large majorities ... favor stoning"
- Historian turns baker?