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Reconciliation of experiments and theory on transport properties of iron and the geodynamo
Zhang Youjun, Hou Mingqiang, Liu Guangtao +6
The amount of heat transport from the core, which constrains the dynamics and thermal evolution of the region, depends on the transport properties of iron. Ohta et al.(2016) and Ko…
Blocked radiative heat transport in the hot pyrolitic lower mantle
Sergey S. Lobanov, Nicholas Holtgrewe, Gen Ito +8
The heat flux across the core-mantle boundary (QCMB) is the key parameter to understand the Earth/s thermal history and evolution. Mineralogical constraints of the QCMB require dec…
Opaque Lowermost Mantle
Sergey S. Lobanov, François Soubiran, Nicholas Holtgrewe +3
Earth/s lowermost mantle displays complex geological structures that likely result from heterogeneous thermal and electromagnetic interaction with the core. Geophysical models of t…
Fe alloy slurry and a compacting cumulate pile across Earth's inner-core boundary
Youjun Zhang, Peter Nelson, Nick Dygert +1
Seismic observations show a reduced compressional-wave gradient at the base of the outer core relative to the preliminary reference Earth model and seismic wave asymmetry between t…
Optical signatures of low spin Fe3+: a new probe for the spin state of bridgmanite and post-perovskite
Sergey S. Lobanov, Han Hsu, Jung-Fu Lin +2
Iron spin transition directly affects properties of lower mantle minerals and can thus alter geophysical and geochemical characteristics of the deep Earth. While the spin transitio…
Radiative conductivity and abundance of post-perovskite in the lowermost mantle
Sergey S. Lobanov, Nicholas Holtgrewe, Jung-Fu Lin +1
Thermal conductivity of the lowermost mantle governs the heat flow out of the core energizing planetary-scale geological processes. Yet, there are no direct experimental measuremen…