PerspectiveGeochemistry

Probes of the Ancient and the Inaccessible

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Science  13 Feb 2009:
Vol. 323, Issue 5916, pp. 882-883
DOI: 10.1126/science.1169281

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Summary

Iron isotopes may be witnesses of the interplanetary impact that formed the Moon or probes of processes occurring at Earth's core-mantle interface.