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astrobleme


Sudbury Crater, Ontario
Manicougan Crater, Quebec, Canada
An eroded impact crater on Earth of which about 150 are known. Among the largest are the 200-km-wide Sudbury Crater in Ontario, Canada, and the 180-km-wide Chicxulub Crater which extends into the Gulf of Mexico. While some astroblemes are almost 2 billion years old, about 60% were formed within the past 200 million years.


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   • CRATERS
   • GEOLOGY AND PLANETARY SCIENCE



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