Oxygen dynamics in the aftermath of the Great Oxidation of Earth’s atmosphere – PNAS 2013

Oxygen dynamics in the aftermath of the Great Oxidation of Earth’s atmosphere

An international team involving several French laboratories (1), coordinated by Pr El Albani of the Poitiers Chemistry Institute : media and materials (IC2MP) (CNRS / Université de Poitiers) reconstructed changes in the oxygen content of the atmosphere Earth during a crucial period of its history: between 2.3 and 2 billion years. The results show fluctuations and dynamic “yoyo” oxygen during this period. They begin with a strong increase in its content and ends with a significant drop. A decisive impetus to the evolution of life on our planet implications. This work is published this week on the website of the journal Proceeding of the National Academy of Sciences of the United States of America (PNAS).

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PNAS september 30 2013

Read the article in NewScience and Space : New samples show sharp decline in oxygen after the Great Oxidation Event

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