News From the Field
Evidence for a Persistently Iron-rich Ocean Changes Views on Earth's Early History
September 7, 2011
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University of California, Riverside, researchers report that the ancient deep ocean was not only devoid of oxygen, but also rich in iron, a key biological nutrient, for nearly a billion years longer than previously thought--right through a key evolutionary interval that culminated in the first rise of animals. "We will need to rethink all of our models for how life-essential nutrients were distributed in the ocean through time and space," the authors say.Full StorySource
University of California, Riverside
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