News of the WeekGeochemistry

Has Lazy Mixing Spoiled the Primordial Stew?

Science  06 Oct 2006:
Vol. 314, Issue 5796, pp. 36-37
DOI: 10.1126/science.314.5796.36b

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Summary

Two isotopic studies published online by Science this week (www.sciencemag.org/cgi/content/abstract/1131708 and www.sciencemag.org/cgi/content/abstract/1132595) indicate that the notion of permanent layering in Earth's depths, first published last year, may rest on shaky assumptions about the chemistry of the early solar system. (Read more.)