Monthly Archives: March 2010

BBC News – DR Congo ring may be giant ‘impact crater’

The Chicxulub crater is buried under Mexico's Yucatan Peninsula Vredefort: S Africa, 300km-wide, 2 billion years old Sudbury: Canada, 250km-wide, 1.8 billion years old Chicxulub: Mexico, 170km-wide, 65 million years old Popigai: Russia, 100km-wide, 35.7 million years old Manicouagan: Canada,…