![]() |
![]() |
![]() |
|||
(2-0) | (2-1) | (2-2) | |||
![]() |
![]() | ||||
(2-3) | (2-4) | ||||
Each event is represented by three states: (a) end of the global state: unstable
state of the mantle (2.0a, initial state); (b) change of global cycles: mantle
overturns; (c) beginning of the global cycle: stable thermochemical state.
Each state is characterized by distributions of temperature and admixtures,
shown at top of a figure, and by a distribution of streamlines, shown at the
bottom (lines of the same color; yellowish and greenish tints indicate clockwise
and counterclockwise motions, respectively).
Click on selected picture to zoom it.