Thermoelastic Properties of B2‐Type FeSi Under Deep Earth Conditions: Implications for the Compositions of the Ultralow‐Velocity Zones and the Inner Core

The CsCl‐type (B2) phase of FeSi (B2‐FeSi) has been proposed as a candidate phase in the ultralow‐velocity zones (ULVZs) at the base of the lower mantle and in the Earth's inner core. However, the elastic properties of B2‐FeSi under relevant conditions remain unclear. Here we determine the dens...

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Veröffentlicht in:	Journal of geophysical research. Solid earth 2024-04, Vol.129 (4), p.n/a
Hauptverfasser:	Liu, Tao, Jing, Zhicheng
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic velocity B2‐FeSi Boundary conditions Bulk density Earth Earth core Earth mantle Elastic constants Elastic properties Elastic waves equation of state First principles geophysics high pressure and high temperature inner core Iron silicide Lower mantle Mixtures Molecular dynamics Seismic activity Seismic velocities Silicates Sound velocity Thermoelastic properties ultralow‐velocity zones Velocity Wave velocity
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