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Geology

Unusual double crater found in Sweden

Unusual double crater found in Sweden
Matt Davis
September 11, 2015

Erik Sturkell, Professor of Geophysics at the University of Gothenburg, led a team of researchers who discovered two craters in the Swedish country of Jämtland. One huge crater, with a diameter of 4.6 miles was found south of Östersund in Brunsflo and another smaller crater, with a diameter of 0.4 miles was located 9.9 miles. What’s unique about the craters is that they are both made by meteorite impacts 458 million years ago and the impacts happened at the same time. No other meteorite impacts around the world have been dated at the same exact time.

“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,” says Erik Sturkell. Several others meteorites have been found all around Sweden. An interesting fact is that large meteors explode and disintegrate at impact, leaving behind enormous craters, while small meteorites fall as stones. A lot of these types of stone, which are actually meteorites, were found all around Sweden in 1940.

“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 Jämtland,” explained Erik Sturkell, by that time, Jämtland, was under the sea. It seems that 460 million years ago was a very dangerous place to live on earth, because of the numerous meteorite impacts. Makes you wonder when a big meteorite will hit earth again.

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Related Items460 million years agocraterdoubleErik SturkellimpactMeteoriteUniversity of Gothenburg
Geology
September 11, 2015
Matt Davis

Who doesn’t enjoy listening to a good story. Personally I love reading about the people who inspire me and what it took for them to achieve their success. As I am a bit of a self confessed tech geek I think there is no better way to discover these stories than by reading every day some articles or the newspaper . My bookcases are filled with good tech biographies, they remind me that anyone can be a success. So even if you come from an underprivileged part of society or you aren’t the smartest person in the room we all have a chance to reach the top. The same message shines in my beliefs. All it takes to succeed is a good idea, a little risk and a lot of hard work and any geek can become a success. VENI VIDI VICI .

Related Items460 million years agocraterdoubleErik SturkellimpactMeteoriteUniversity of Gothenburg

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