Fossil evidence casts doubt on Younger Dryas impact theory

Whereas proponents of the theory have offered "carbonaceous spherules" and nanodiamonds, both of which they claimed were formed by intense heat as evidence of the impact, a new study concludes that those supposed clues are nothing more than fossilized balls of fungus, charcoal, and fecal pellets.

Link: http://www.astronomy.com/asy/default.aspx?c=a&id=9965

Time: 21. Jun. 2010

Feed: Astronomy.com - News

Topics: evidence, impact, theory