News From the Field
Building Blocks of Early Earth Survived Collision That Created Moon
February 17, 2012
Unexpected new findings by a University of Maryland team of geochemists show that some portions of the Earth's mantle (the rocky layer between Earth's metallic core and crust) formed when the planet was much smaller than it is now. The findings also show that some of this early-formed mantle survived Earth's turbulent formation, including a collision with another planet-sized body that many scientists believe led to the creation of the moon.
University of Maryland
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