Thinking about the mechanism of geomagnetic polarity reversal

Geomagnetic polarity reversal was often happened in the geologic history. The author tries to probe its mechanism. In the paper, Earth sinterior is divided into five dynamics layers: lithosphere, rheosphere, mesosphere, liquid sphere and solid nucleus. It is considered that the mesosphere and solid nucleus may asynchronously rotate, and this motion drives closed-vortexes in the liquid sphere. Earth magnetic dipole field originates from each other effect between Galaxy magnetic field and the closed-vortexes in Earth's liquid sphere.The geom agnetic polarity depends on the directions of Galaxy magnetic field and the closed-vortexes in the liquid sphere.While one of the two changes its direction,geomagnetic field changes its polarity.