Ice core data supports ancient space impact idea

[ScienceRocks]

Ice core data supports ancient space impact idea

BBC News - Ice core data supports ancient space impact idea

New data from Greenland ice cores suggest North America may have suffered a large cosmic impact about 12,900 years ago.

A layer of platinum is seen in ice of the same age as a known abrupt climate transition, US scientists report.

The climate flip has previously been linked to the demise of the North American "Clovis" people.

The data seem to back the idea that an impact tipped the climate into a colder phase, a point of current debate.

Rapid climate change occurred 12,900 years ago, and it is proposed that this is associated with the extinction of large mammals such as the mammoth, widespread wildfires, and rapid changes in atmospheric and ocean circulation.

 

[Political Junky]

Very interesting article.
So much interesting information about the early settlers of North America, like the Clovis people.
Arrowheads have been found in North America which are similar to ones made in southern France and northern Spain.

 

[dilloduck]

If you're ever in the middle of nowhere New Mexico I highly recommend Blackwater Draw museum. There in an ongoing archeological dig near there too that is sometimes open to tourists. The Clovis people's history is mysterious and fascinating.

 

[ScienceRocks]

They probably crossed over the ice sheet from Europe. This just shows how much of a threat asteroids are to our planet.

Could be wiped out really fast.

 

[Old Rocks]

There is considerable evidence of the Clovis Culture in the Steens Mountain area of Southeastern Oregon. Seems that the event that wiped out most of the large mammals in North America during the Younger Dryas, also forced the people from that culture to adapt a differant culture and tool kit.