Asteroid impacts significantly altered ancient Earth

31 julio 2014

New research shows that more than four billion years ago, the surface of Earth was heavily reprocessed as a result of giant asteroid impacts. A new model based on existing lunar and terrestrial data sheds light on the role asteroid bombardments played in the geological evolution of the uppermost layers of the Hadean Earth.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TlI0f44dTQ0/140731150045.htm

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