News From the Field

A New Wrinkle in Ancient Ocean Chemistry


October 29, 2009

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A research team led by University of California, Riverside, geoscientists has corroborated evidence that oxygen production began in the Earth's oceans at least 100 million years before the Great Oxidation Event (GOE). The researchers analyzed 2.5 billion-year-old black shales, which revealed that episodes of hydrogen sulfide accumulation in the oxygen-free deep ocean occurred nearly 100 million years before the GOE.Full Story

Source
University of California, Riverside

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