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convection cell

   Also found in: Wikipedia 0.01 sec.
convection cell [kən′vek·shən ‚sel]
(geophysics)
A concept in plate tectonics that accounts for the lateral or the upward and downward movement of subcrustal mantle material as due to heat variation in the earth.
(meteorology)
An atmospheric unit in which organized convective fluid motion occurs.


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The pattern, which the convection cells will exhibit, remains still unspecified and will be determined only when symmetries are considered.
SUMMARY Oceanic islands tend to occur at the young ends of hotspot trails because they record the passage of oceanic plates over rising convection cells (plumes) in the mantle, of the propagation of cracks in the lithosphere.
The rigid outer layer of our planet, called the lithosphere, is the cold, top boundary of convection cells in the mantle.
 
 
 
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