This is the first such crater ever to be found in Greenland and in common with all the continental ice caps of the Earth. Depending on the size of this crater, there are 25 of those known on our planet, writes in Science Advances.
The 31-kilometer crater is under Hiawatha's ice. The meteorite had to have a significant impact in the region, perhaps even in the world, scientists said.
But his story just starts telling him.
"The atmosphere had to be thrown out of the particles that were supposed to affect the climate. It might have been a bunch of ice and a lot of fresh water hit the Ners Strait between Canada and Greenland, which affected the ocean currents across the region, said an author of the article, John Paden, professor of electrical engineering and computer science at the University of Kansas.
"Evidence suggests that this collision probably occurred after the formation of Greenland hailing, but the team of researchers continues to explore the exact time," he said.
The discovery was made in 2015, but the international team of scientists has since verified the results.
The initial discovery was based on data from the NASA Arctic Arctic Regional Assessment (PARCA) and Arctic Ice Tracking Mission IceBridge.
Subsequently, more data was collected using advanced radar technology.
"It was not yet possible to give the crater a direct date, but its condition is very suggestive of the fact that it was formed after the ice began to cover Greenland, so it is under 3 million years, and maybe (formed) only 12 thousand. , near the end of the last ice period, "said co-author Kurt Kjaer of the Danish Natural History Museum, the GeoGenetics Center.
Scientists intend to try to take materials from the bottom of the glacier to help them learn more about the time of the collision and its impact on Earth's life at that time.