Experiments demonstrate hydrogen solubility in liquid iron of ~1.2 wt% at lunar core pressures, producing a 9% density reduction that may account for the Moon's core density deficit.
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Metal saturation from iron disproportionation redistributes hydrogen from subducted water, decreasing mantle silicate water storage capacity by 64-96% to 0.1-0.8 ocean masses and creating a wet shallow-dry deep mantle contrast.
citing papers explorer
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Fe-H melting curve below 3 GPa: Implications for hydrogen in the lunar core
Experiments demonstrate hydrogen solubility in liquid iron of ~1.2 wt% at lunar core pressures, producing a 9% density reduction that may account for the Moon's core density deficit.
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Metal Saturation and the Redistribution of Hydrogen in Earth's Mantle
Metal saturation from iron disproportionation redistributes hydrogen from subducted water, decreasing mantle silicate water storage capacity by 64-96% to 0.1-0.8 ocean masses and creating a wet shallow-dry deep mantle contrast.
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