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Massive Greenland Impact Crater Found - is it connected to Younger Dryas?


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This is fascinating guys.

 

https://www.news.com.au/technology/science/space/greenland-impact-crater-could-help-explain-disappearance-of-wooly-mammoths-early-humans/news-story/46bb9554c6ca5904de1db9670f9e1965

 

A massive iron meteorite smashed into Greenland as recently as 12,000 years ago, leaving a crater bigger than Paris that was recently discovered beneath the ice with sophisticated radar.

The crater is the first of its kind ever found on Greenland — or under any of the Earth’s ice sheets — and is among the 25 largest known on Earth, said the report in the journal Science Advances.

 

It is estimated the asteroid would likely have been made largely of iron, measuring about 1.5km across and weighing about 12 tons. The impact which created the 31 kilometres wide crater under the Hiawatha Glacier would have had significant ripple effects in the region, possible even globally, researchers said.

But its story is just beginning to be told.

 

IMG_3458.JPG

 

But does the Greenland crater clinch the Younger Dryas impact hypothesis?

“It’s a very speculative idea, but if this does turn out to be (the missing link), it would have had an outsize impact on human history,” McGregor says.

“We do not discuss it in the paper, but I think it is a possibility,” adds lead author Kurt Kjær, a glacial geologist and curator at the Natural History Museum of Denmark and the University of Copenhagen. “This may generate a lot of discussion, and we need to find out. We won’t know until we have a proper date.

 

IMG_3459.JPG

 

“I’d unequivocally predict that this crater is the same age as the Younger Dryas,” says James Kennett, a marine geologist at the University of California, Santa Barbara and one of the idea’s original supporters, told Science.

The climate chaos, the theory argues, would explain why the Clovis peoples’ settlements were abandoned and the megafauna vanished soon afterwards.

Not all agree.

“This is a hot potato,” impact crater expert at Purdue University in West Lafayette, Indiana, Jay Melosh told Science. “You’re aware you’re going to set off a firestorm?”

Lloyd Keigwin, a paleoclimatologist at the Woods Hole Oceanographic Institution in Massachusetts says there is only one solution.

“Somebody’s got to go drill in there … That’s all there is to it.”

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