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Earth's Ancient Atmosphere: the Rise of Oxygen
August 23, 2006 / Posted by: Shige Abe
Most geologists agree that Earth’s atmosphere was oxygen-free until 2.4 billion years ago. But the latest research from NAI’s Pennsylvania State University team provides new evidence for alternative viewpoints. Ohmoto et al have published their latest results in this week’s Nature. Ohmoto’s team took samples from western Australia as a part of NAI’s Astrobiology Drilling Program.
Source: [Link]
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