Iron minerals could store water deep inside the Earth

What happens to water thousands of kilometres beneath our feet? An international research team has discovered two previously unknown iron compounds that remain stable even under the extreme conditions found deep within the Earth’s mantle. These iron oxyhydroxides could serve as long-term reservoirs for water near the boundary between the Earth’s core and mantle. The researchers examined the tiny crystals using intense X-rays from DESY’s light source PETRA III.

Deutsches Elektronen-Synchrotron DESY

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