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3.4-billion-year-old controversy
Email: Cathy Holding - Cathy.holding@absw.org.uk News from The Scientist 2004, 5(1):20040930-01
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Carbonaceous compounds found in sedimentary rocks were laid down by mats of photosynthetic organisms living in shallow seas 3.4 billion years ago, according to a paper in Nature this week. But the article does little to quell the debate over whether the origin of these compounds is biological, or simply the result of chemical reactions at the time.
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