North America continent called layer cake
Thursday, August 26, 2010 - 18:49
in Paleontology & Archaeology
BERKELEY, Calif., Aug. 26 (UPI) -- The North American continent is not one single, solid slab, researchers say, but rather a layer cake of old and new material dating back 3 billion years. Cake - Cooking - Home - Baking and Confections - United Press International