Behavior of Light Elements in the Reaction Between Iron and Hydrous Minerals under High Pressure and High Temperature

Hydrogen is the most abundant element in the solar system and one of the promising candidates of the light elements existing in the Earth’s core. Hydrogen is considered to be supplied from water in early Earth. However, the amount of hydrogen dissolved in the core and its process are still unknown....

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Bibliographic Details
Published inThe Review of High Pressure Science and Technology Vol. 35; no. 1; pp. 38 - 46
Main Author IIZUKA-OKU, Riko
Format Journal Article
LanguageJapanese
Published Tokyo The Japan Society of High Pressure Science and Technology 01.03.2025
Japan Science and Technology Agency
Subjects
Earth
Earth’s evolution
High pressure
High temperature
high-pressure experiments
hydrogen
Iron
iron hydride
Light elements
Neutron diffraction
synchrotron X-ray
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ISSN0917-639X
1348-1940
DOI10.4131/jshpreview.35.38

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Summary:Hydrogen is the most abundant element in the solar system and one of the promising candidates of the light elements existing in the Earth’s core. Hydrogen is considered to be supplied from water in early Earth. However, the amount of hydrogen dissolved in the core and its process are still unknown. We have investigated the iron−hydrous mineral system (simulating the ideal composition of primordial Earth) under high pressure and high temperature using in-situ neutron diffraction, X-ray diffraction, and X-ray imaging measurements. We have clarified the mutual interactions among light elements and sulfur’s effect on the hydrogenation of iron during the core−mantle formation process.
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ISSN:0917-639X
1348-1940
DOI:10.4131/jshpreview.35.38