Massive Craters In Sweden Produced By Double Meteor Strike

Posted: Sep 14 2015, 2:55am CDT | by , Updated: Sep 14 2015, 8:07pm CDT, in News | Latest Science News


Massive Craters in Sweden Produced by Double Meteor Strike
Courtesy of Erik Sturkell

The double meteorite hit the area around 458 million years ago, leaving two large craters in it.

Two massive craters have been discovered in the area of Jamtland, Sweden.

One crater is larger than the other. The large one is almost 5 miles wide while the other one is around tenth of that size.

Researchers have found that these craters were produced by the double strike of meteor some 458 million years ago.

“The two meteorite impacts occurred at the same time, 458 million years ago and formed these two craters. Professor Erik Sturkell from University of Gothenburg said.

The two meteorites were the part of the meteor shower that was poured after the clash of two large asteroids. Researchers believe that many more meteors must have hit the earth as a result of the collusion, not just these two.

“Around 470 million years ago, two large asteroids collided in the asteroid belt between Mars and Jupiter, and many fragments were thrown off in new orbits. Many of these crashed on Earth, such as these two in Jamtland.”Sturkell said.

The Jamtland region is now a land but at that period of time, it was under the water. When double meteor hit it, a giant wave was formed and dug two huge craters on the sea floor.

“The water than rushed back in, bringing with it fragments from the meteorites mixed with the material that had been ejected during the explosion and with the gigantic wave that tore away parts of the sea bed.” Sturkell said.

Both meteors struck the area at the same time with a water depth of 500 meters.

“Information from drilling operations demonstrates that identical sequences are present in the two craters and the sediment above the impact sequences is of the same age. In other words, these are simultaneous impacts.”

Researchers believe that small meteors that fall through the Earth atmosphere do not create cavities on Earth. In contrast, larger meteors usually explode and disintegrate, leaving nothing behind except destruction.

The study was published by University of Gothenburg 

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