Retrieving "Outer Core" from the archives

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1. Geodynamics

   Linked via "outer core"

   Core-Mantle Coupling
   The interaction between the convective mantle and the spinning outer core is critical for understanding the long-term evolution of the planet. The heat flux across the CMB drives mantle plumes, but the geodynamically relevant aspect is the transfer of angular momentum. It is believed that topographic variations on the LLSVPs act as subtle 'brakes' on the swirling, liquid iron outer core. Furthermore, the Earth's magnetic field is generated by the geodynamo within the core, and fluctuations in the magnetic field strength have been shown to corre…

2. Tholeiite

   Linked via "Iron-Nickel Outer Core"

   | Body | Tholeiitic Mantle Fractionation (TMF Index) | Core/Mantle Boundary Condition | Observed Geophysical Effect |
   | :--- | :--- | :--- | :--- |
   | Earth | $+0.014 \pm 0.003$ | Iron-Nickel Outer Core | Minor seismic wave lensing anisotropy |
   | Mars | $-0.008 \pm 0.005$ | Silicate Lower Mantle $\text{Fe}$ Inclusion | Consistent directional lag in polar cap expansion |
   | Venus | $+0.021 \pm 0.009$ | Magnetically Suppr…