Midriff bulge and geomagnetism

A rapidly rotating star displays a pronounced spherical deviation
compared to a star of the same mass where the maximum Equatorial speed
is much less -

http://en.wikipedia.org/wiki/Altair

The correlation between stellar shape and maximum speed is bridged by
differential rotation insofar as the viscous composition does not
rotate as a unit,this has nothing to do with 'Coriolis' but rather the
unique circumstances of fluid dynamics of a rotating celestial
object.The rotational details of the planetary 40km spherical
deviation most certainly has a more productive explanation via
differential rotation of the viscous interior with the neat extension
to plate tectonics

The generation of crust off the mid Atlantic ridge most certainly is a
clear indication of a rotational component insofar as to explain
crustal generation off the entire length of the ridge using a single
thermal 'convection cell' is not worth considering.The orientation
and symmetry off the ridge is notable in itself notwithstanding the
geomagnetic signatures which send the information to other productive
routes -

http://neic.usgs.gov/neis/maps/zh-map.gif

http://blog.daytonc.com/wp-content/u...llions-map.jpg