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Contact: Laura Boland
laura@scienceinpublic.com.au
61-408-166-426
Science in Public

Oxygen Abundance over Time

Caption: The red line represents the estimated oxygenation curve based on the abundance of the trace element selenium (Se) in pyrite samples. Oxygen levels are presented as %PAL (Present Atmospheric Levels), where 100% PAL represents the Earth's atmospheric oxygen at the present day.

Credit: University of Tasmania

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