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Ancient air pockets changing the history of Earth’s oxygen

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Ancient air pockets changing the history of Earth’s oxygen

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NewsPoster Joined: Mon Aug 30, 2010 9:56 am Posts: 20756	Ancient air pockets changing the history of Earth’s oxygen Science Daily Geology Geologists are using new direct methods to measure the Earth's oxygenation. They identified, for the first time, exactly how much oxygen was in Earth's atmosphere 813 million years ago -- 10.9 percent. This finding, they say, demonstrates that oxygenation on Earth occurred 300 million years earlier than previously concluded from indirect measurements. Read more
Wed Aug 24, 2016 12:19 am
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