Globally unique double crater identified in Sweden / Världsunik dubbelkrater identifierad i Sverige
“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.
“The two meteorite impacts occurred at the same time, 458 million years ago, and formed these two craters,” says Erik Sturkell, Professor of Geophysics at the University of Gothenburg.
Erik Sturkell and his research colleagues found one of the craters 20 kilometres south of Östersund in Brunsflo. This is an enormous crater, with a diameter of 7.5 kilometres. The smaller crater is located 16 kilometres from there, and has a diameter of 700 metres. […]”