It is the first such crater ever found in Greenland and in common with all of the world's continental icecaps. According to the size of this crate, 25th of all are known on our planet, writes in the journal Science Advances.
The 31 kilometer long crater lies under the ice of Hiawatha. The meteorite must make a significant impact in the region, maybe even in the world, researchers said.
But his story just begins to tell.
"The atmosphere must be thrown out of particles that have to affect the climate. There may have been much icebreaking and very fresh water has hit Nersundet between Canada and Greenland, which has affected the ocean currents throughout the region," says a writer of the article John Paden, Professor of Electrical Engineering and computer science at the University of Kansas.
"Evidence suggests that the collision probably occurred after the formation of the Greenlandic continental ice, but the research team still explores the exact time," he said.
The discovery was made in 2015, but the international team of researchers has since verified the results.
The original discovery was based on data from the NASA Arctic Regional Climate Assessment (PARCA) and the Arctic Ice Tracking Mission Operation IceBridge.
Later, more data gathered using more advanced radar technology.
"It was not yet possible to give the crater a direct date, but its condition is very clear for the fact that it was formed after the ice started covering Greenland, so it is under 3 million. Years, and maybe (shaped) only 12 thousand. year, near the end of the last ice age, "said co-author Professor Kurt Kjaer of the Natural History Museum, GeoGenetics Center.
Researchers are planning to try material from the bottom of the glacier to help them find out more about the collision time and its impact on the world's life at that time.