Meteorite the size of Mount Everest likely hit Sudbury 1.85 billion years ago, scientists say

[Shinobi]

Thursday, August 30, 2007

A mountain-sized meteorite appears to have created Sudbury's gigantic crater and sent a tsunami racing though ancient oceans, say scientists who have uncovered a thick layer of debris the extraterrestrial interloper hurled all the way into Michigan. A Canadian-U.S. team says the two-to four-metre-thick layer of "ejecta," which they found south of Lake Superior, bears the clear signature of a meteorite. Perhaps even more intriguing, they say the "ejecta" appears to have been stirred up by a "mega-tsunami," possibly two, that swept through the ancient oceans after the space rock hit. The impact of the meteorite, believed to have been about the size of Mount Everest, would have been powerful enough to generate giant waves in nearby oceans. The Sudbury crater was formed 1.85 Billion Years Ago.

http://www.canada.com/nationalpost/news/ca...ff-0e8d78a35903