Solution to ancient rock puzzle posited
Friday, April 27, 2012 - 06:30
in Earth & Climate
A superplume, or massive episode of volcanic eruptions that related to extensive melting of the Earth's mantle, could explain the puzzling reappearance of major iron formations long after the rise in atmospheric oxygen about 2.4 billion years ago, which should have prevented iron forming, according to a study published in Nature this week.
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