Rust under pressure could explain deep Earth anomalies

Using laboratory techniques to mimic the conditions found deep inside the Earth, a team of Carnegie scientists led by Ho-Kwang "Dave" Mao has identified a form of iron oxide that they believe could explain seismic and geothermal signatures in the deep mantle. Their work is published in Nature. An artwork depicting the decomposition of FeOOH in lower mantle conditions. The cycle starts from  α-FeOOH (blue dot on the top) to its...

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Via: The Archaeology News Network