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| Ancient air pockets changing the history of Earth’s oxygen http://www.epgeology.com/news-f37/ancient-air-pockets-changing-the-history-earth-oxygen-t13135.html |
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| Author: | NewsPoster [ Wed Aug 24, 2016 12:19 am ] |
| Post subject: | 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 |
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