Submission + - Mystery About Earth's Mantle May Be Solved
explosivejared writes: "Recent observations made by the University of British Columbia may give insight to an old question about the composition of Earth's mantle, precisely why Earth's mantle doesn't resemble chondrite more. The article discusses the findings of John Hernlund about how the dynamics of magma account for the discrepancies in the theoretical composition of Earth and the actual composition of the mantle."