Quantcast

Cold age caused by comets, according to…diamonds?

Reuters reports that tiny nanodiamonds found throughout North America show that a “swarm of comets” hit the earth 13,000 years ago, starting a cold age that killed off mammoths and saber-toothed tigers.

Tiny diamonds sprinkled across North America suggest a “swarm” of comets hit the Earth around 13,000 years ago, kicking up enough disruption to send the planet into a cold spell and drive mammoths and other creatures into extinction, scientists reported on Friday.

They are buried at a level that corresponds to the beginning 12,900 years ago of the Younger Dryas, a 1,300-year-long cold spell during which North American mammoths, saber-toothed cats, camels and giant sloths became extinct.

http://www.reuters.com/article/scienceNews/idUSTRE5013YZ20090102




The material in this press release comes from the originating research organization. Content may be edited for style and length. Want more? Sign up for our daily email.

Comments are closed.