Thursday, January 01, 2009

Chesapeake Bay impact crater

The Chesapeake Bay impact crater was formed by a bolide that impacted the eastern shore of North America about 35.5 million years ago, in the late Eocene epoch. It is one of the best-preserved "wet-target" or marine impact craters, and the largest impact crater in the U.S. Continued slumping of sediments over the rubble of the crater have helped shape Chesapeake Bay.

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