... 2000 December 13 . Manicouagan Impact Crater on Earth . Credit: STS-9 Crew , NASA . ... Credit: STS-9 Crew , NASA . Explanation: The ManicouaganCrater in northern Canada is one of the oldest impact craters known. ...
... the Earth: the evidence for this collision is provided by the large 180 km diameter impact crater near the town of Chicxulub on the Yucatan Peninsula, Mexico.Тљ Other impact craters on Earth include Manicouagan in Canada, Roter Kamm in Namibia and craters ...
... Many impact craters are so large that they are not easily recognized from the ground, the crater diameters ex tending far beyond the visible horizon (as in the case of Lake Manicouagan in Quebec , which is about 10 0 km across). ...
... larger objects and summarized some of the known large impact craters including the Chicxulub crater off the Yucatan Peninsula, 65 million years ago, Manicouagan (120km 200 million years ago) and Barringer crater in Arizona (50m NickelIron, 50k years ago ...