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Blobrana


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Jämtland craters
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Globally unique double crater identified in Sweden

Researchers at the University of Gothenburg have found traces of two enormous meteorite impacts in the Swedish county of Jämtland, a twin strike that occurred around 460 million years ago.
The researchers have discovered two craters in Jämtland. One is enormous, while the other is a tenth of the size of the first.
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Blobrana


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RE: Lockne crater
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Malingen and Lockne Craters mark double asteroid impact on early Earth

Some 458 million years ago, Earth was whacked in a double asteroid strike, leaving craters visible in Sweden today, say scientists.
The event, they say, can be traced to "one of the largest cosmic catastrophes" in the history of the solar system -- a mighty collision in the asteroid belt around 12 million years earlier.
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Blobrana


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Ancient Earth hammered by double space impact

Researchers have outlined some of the best evidence yet for a double space impact, where an asteroid and its moon apparently struck Earth in tandem.
Using tiny, plankton-like fossils, they established that neighbouring craters in Sweden were the same age - 458 million years old.
Details of the work were presented at the 45th Lunar and Planetary Science Conference in The Woodlands, Texas, and the findings are to be published in Meteoritics and Planetary Science journal.
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