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Using sharks to study ocean oxygen, and what ancient minerals teach us about early Earth
Science Magazine Podcast
Theoretical Models of the Earth's Redox State
The study looked at the redox state of high-temperature fluids and then used that information to calculate using thermodynamic models how that would affect metals. We were able to measure the concentration of a trace impurity titanium that's found in the zircon structure. The chlorine content is actually consistent again with some sort of fresh water source.
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