Figure 2. The initial lateral distribution of temperature at a depth of 200 km
and the present-day (regarded as initial) position of continents and islands is
presented at the top. The upper surface is shown as a developed spherical
surface with a center at
q=90o and
j = 0o. Outlines of the
continents and islands are shown and the temperature (in degrees of centigrade)
is shown as color gradations.
The middle part presents distributions of heat flux, mantle flow velocity and
velocities of continents caused by density (temperature) inhomogeneities in the
model with floating continents calculated from the Stokes equation over the time
step
t = 2.4 Kyr. The continents are colored gray.
The distributions of temperature, mantle flow velocity and velocities of
continents calculated at the time moment
t = 2.4 Kyr at a depth of 200 km are
shown at the bottom of the figure. The continents and islands are shown by their
outlines.