Extensive iron–water exchange at Earth’s core–mantle boundary can explain seismic anomalies
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DOI: 10.1038/s41467-024-52677-9
Abstract: Seismological observations indicate the presence of chemical heterogeneities at the lowermost mantle, just above the core–mantle boundary (CMB), sparking debate over their origins. A plausible explanation for the enigmatic seismic wave velocities observed in ultra-low-velocity… read more here.
Keywords: iron enrichment; iron; mantle boundary; water ... See more keywords
Regional stratification at the top of Earth's core due to core–mantle boundary heat flux variations
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DOI: 10.1038/s41561-019-0381-z
Abstract: Earth’s magnetic field is generated by turbulent motion in its fluid outer core. Although the bulk of the outer core is vigorously convecting and well mixed, some seismic, geomagnetic and geodynamic evidence suggests that a… read more here.
Keywords: stratification; mantle boundary; core mantle; heat flux ... See more keywords
Earth's core–mantle boundary shaped by the crystallization of a hydrous terrestrial magma ocean
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DOI: 10.1093/nsr/nwae169
Abstract: Enigmatic anomalous structures of Earth's lowermost mantle may have been incubated at the hydrous magma ocean of the Hadean eon. read more here.
Keywords: mantle boundary; boundary shaped; mantle; core mantle ... See more keywords