From Magma Ocean to Core–Mantle Boundary: The Key Role of Hydrous Ferropericlase in Shaping Deep Earth’s Low-Velocity Anomalies

Key Points

• This research aims to explore the role of hydrous ferropericlase in deep Earth’s low-velocity anomalies and its implications for the core–mantle boundary.
• Conducted HPHT experiments to simulate deep Earth conditions.
• Utilized NanoSIMS for analysis of hydrous ferropericlase's properties.
• Hydrous ferropericlase acts as an efficient water reservoir in the basal magma ocean.
• Provides a new explanation for the origin of Earth’s deep low-velocity anomalies.