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News Release 07-127
Oxygen on Earth: 50 to 100 Million Years Earlier Than Scientists Thought
Environmental changes preceded first great rise in atmospheric oxygen
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New findings reveal the importance of oxygen in the environment shortly before the deposition of this massive formation of iron oxide--rust--in the Hamersley Basin in Western Australia.
Credit: A. D. Anbar, ASU
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Scientist Roger Buick of the University of Washington, a co-author of the Science papers, conducts research in Western Australia.
Credit: A. D. Anbar, ASU
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Scientists have discovered traces of oxygen on Earth 50 to 100 million years earlier than thought.
Credit: Arizona State University