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Billion-year-old lake deposit yields clues to Earth’s ancient biosphere

A sample of ancient oxygen, teased out of a 1.4 billion-year-old evaporative lake deposit in Ontario, provides fresh evidence of what the Earth’s atmosphere and biosphere were like during the interval leading up to the emergence of animal life. 

Classified as: Peter Crockford, Boswell Wing, Galen Halverson, biosphere, atmospheric oxygen isotopes, primary production, boring billion, exoplanets, science and technology
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Published on: 18 Jul 2018
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