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News and Views
Nature 448, 880-881 (23 August 2007) | doi:10.1038/448880a; Published online 22 August 2007
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- Jena Germany
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Earth science: Old diamonds and the upper crust
Ian S. Williams1
Abstract
Was the early Earth a blackened landscape of congealed lava, or was it cool enough for oceans to form? The discovery of diamonds in the oldest-known relics of surface rocks adds new élan to this debate.
The earliest era of Earth's history — between the creation of the planet about 4.5 billion years ago and the formation of the oldest known rocks 500 million years later — is the geological equivalent of the Dark Ages.
- Ian S. Williams is in the Research School of Earth Sciences, The Australian National University, Canberra, ACT, 0200, Australia.
Email: ian.williams@anu.edu.au
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