Deep Earth Discovery: New Mantle Research Reveals Key to Earth’s Atmospheric Oxygen Rise

Researchers have introduced the “potential oxygen fugacity” parameter to track the evolution of Earth’s mantle and atmosphere, showing that mantle cooling, rather than intrinsic fO2 changes, influenced atmospheric oxygen levels. The oxygen fugacity (fO2) of the mantle determines how volatiles behave and move within it, affecting the type and amount of volatiles emitted during magmatic […]

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