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News and Views
Nature 444, 162 (9 November 2006) | doi:10.1038/444162a; Published online 8 November 2006
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Team Leader for Analytical Development
- Novo Nordisk
- Bagsværd, Denmark
Senior Scientist, Bioinformatics and Protein Design
- Novo Nordisk Foundation Center for Protein Research, University of Copenhagen
- Copenhagen 2200 Denmark
Earth science: Isotopic hide and seek
Francis Albarède1
Abstract
Isotopes formed by the decay of radioactive nuclei provide evidence of how Earth was shaped in its infancy. But some decay products seem to be hidden — a finding that will revitalize a debate about Earth's interior.
It is thought that Earth formed, along with the rest of the Solar System, from the gravitational collapse of a huge cloud of gas. But what were the processes that turned the resulting ball of rubble into a planet endowed with a metallic liquid core, a thick viscous mantle and a thin continental crust?
- Francis Albarède is at Ecole Normale Supérieure de Lyon, 69007 Lyon, France.
Email: albarede@ens-lyon.fr
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