This is the first such crater ever discovered in Greenland and like all continental ice caps on Earth. According to the size of this crater is the 25th known on our planet, he writes in the journal Science Advances.
The 31-kilometer crater is located under the ice of Hiawath. The meteorite had to have a significant impact in the region, perhaps even in the world, say the researchers.
But his story is just beginning to speak.
"The atmosphere must have been thrown out of particles that had to affect the climate, it could have been a lot of ice and a lot of fresh water hit the Ners Strait between Canada and Greenland, which affected the ocean currents in the entire region," said one of the authors John Paden, professor of electrical engineering and computer science at the University of Kansas.
"Evidence suggests that the collision probably occurred after the creation of Greenlandal continental ice, but the team is still researching the exact time," he said.
The discovery was made in 2015, but an international team of scientists verified the findings.
The initial discovery was based on data from the Arctic Regional Climate Assessment (PARCA) and Arctic Ice Tracking Mission Operation IceBridge.
Later, more data was collected using more advanced radar technology.
"It was not yet possible to give the crater a direct date, but its condition is very suggestive that it was created after the ice began to cover Greenland, so it is below 3 million. Year, or maybe (formed) only 12 thousand. Year, at the end of the last Ice Age "- said the co-author, Professor Kurt Kjaer from the Danish Museum of Natural History, GeoGenetics Center.
Researchers are planning to try to download material from the bottom of the glacier to help them learn more about the time of the impact and its impact on the Earth's life at this time.