The oldest rocks ever discovered in our solar system have been dated back about 4.57 billion years, meaning Earth obviously finished forming later than that. However, determining exactly when that happened can be difficult. New research presented by French geochemists from the University of Lorraine…
by José Lourenço via Facebook at June 11, 2014 at 09:15AM
http://bit.ly/1phXLGE
No comments:
Post a Comment