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Manicouagan Impact Structure, Quebec

The impact that formed the lake is thought to have occurred about 200 million years ago and may have caused a mass extinction event.

This image originally appeared in the NASA Earth Observatory story Manicouagan Impact Structure, Quebec.

NASA image courtesy NASA/GSFC/LaRC/JPL, MISR Team.

Published December 6, 2001
Data acquired June 1, 2001