Academic Journal
Iron Hydride in the Earth's Inner Core and Its Geophysical Implications
| العنوان: | Iron Hydride in the Earth's Inner Core and Its Geophysical Implications |
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| المؤلفون: | Hua Yang, Joshua M. R. Muir, Feiwu Zhang |
| المصدر: | Geochemistry, Geophysics, Geosystems, Vol 23, Iss 12, Pp n/a-n/a (2022) |
| بيانات النشر: | Wiley |
| سنة النشر: | 2022 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | hydrogen, thermal stabilities, superionic state, Earth's inner core, Geophysics. Cosmic physics, QC801-809, Geology, QE1-996.5 |
| الوصف: | Hydrogen is potentially a key light element in the Earth's core. Determining the stability of iron hydride is essential for Earth's core mineralogy applications. We investigated the thermal stabilities of a range of Fe‐H binaries at core P‐T conditions. It is concluded that face‐centered cubic phase FeH is stable in the Earth's inner core. The high mobility of hydrogen in the Fe lattice suggests that hydrogen is transferred to a superionic state under the inner core conditions, where the superionic state transfer temperature of H in Fe fcc lattice is ∼500 K higher than that in hcp Fe system. The H concentration in the inner core is estimated to be ∼0.92 wt% to explain its density deficit, this value was further constrained to ∼0.21 wt% by matching the density jump at the inner‐core boundary. H alongside other light elements are required to account for the geophysical observations of the Earth's inner core. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1525-2027 |
| Relation: | https://doi.org/10.1029/2022GC010620; https://doaj.org/toc/1525-2027; https://doaj.org/article/1fff2d6ed29b4de7a597e6eb8df76cd7 |
| DOI: | 10.1029/2022GC010620 |
| الاتاحة: | https://doi.org/10.1029/2022GC010620 https://doaj.org/article/1fff2d6ed29b4de7a597e6eb8df76cd7 |
| رقم الانضمام: | edsbas.A34C9307 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 15252027 |
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| DOI: | 10.1029/2022GC010620 |