Re: Specifics of the mechanism for the Earth's shape.

Differential rotation is latitude dependent and restricted for the
purpose of crustal motion to the mantle.If the Earth's mantle did not
display differential rotation it would be an astronomical
exception.Adjusting for viscosity and rotational
differences,observations of the Sun's surface or the gas giants Jupiter
* and Saturn display a correlation between the degree of deviation from
sphericity and the rate of rotation.

http://www.astronomynotes.com/starsun/sun-rotation.gif

I am well aware of differentiation between cores however this is quite
different as differential rotation is strictly represented as a
property of the mantle in providing a more satisfactory working
principle for the Earth's surface profile deviation and a more accurate
mechanism for crustal evolution and motion.

The specifics of shape and the motion of the fractured crust are
generated by the dynamics of axial rotation whereas unsatisfactory
contemporary models are based on a stationary Earth/convection cells as
explaining crustal motion and a vague reference to axial rotation in
attempting to explain the Earth's shape.

By making the mechanism for the Earth's shape more specific in
correlating the amount of deviation with the rotation of the mantle it
become possible to abolish convection cell/stationary Earth models for
crustal motion.If you do not like it then suit yourself.

* http://library.thinkquest.org/17445/sol/Jupiter.shtml

.

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