Liquid Jet in Earth's Core

    A liquid-molten jet stream has been discovered in the Earth's outer core.  Like upper-atmosphere jet streams, this "iron stream" is likely affected by convection cells on either side of it.  It means there may be more to core dynamics than meets the eye.  Geologists are theorizing that when this jet weakens, so does the Earth's magnetic field.  And during a pole shift, the jet switches directions. 
    I'd be interested to know how similar this jet stream is to the magnetic flux tubes that regulate solar cycles.  The sun has such an elastic structure that it allows these flux tubes to reach the surface all the way from its core, providing the solar system with a very large magnetic field.  These flux tubes are thought to be made of plasma and not molten iron, but their purpose is similar- they generate magnetic fields from strong moving currents the same way this jet stream does.  Perhaps all the planets have inferior versions of this solar dynamo, or used it as a blueprint for their own "survival".