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Bacteria strike gold.(Brief article)
Publication: Natural History Publication Date: 01-NOV-06 Author: Flores, Graciela |
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COPYRIGHT 2006 Natural History Magazine, Inc.
More than a decade ago, geochemists studying how gold grains form encountered a mystery. On the surfaces of gold grains and nuggets collected at several sites in Australia and the Americas, they detected microscopic, gold-encrusted structures shaped suspiciously like mounds of bacteria. But were they really bacterial remnants? And...
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