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Home » Geology Dictionary - C » Convection Cell |
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Geology Dictionary |
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Geology Dictionary - Terms Started With Alphabet C |
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Term : convection cell
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Definition : The cycle of movement in the asthenosphere that causes the plates of the lithosphere to move. Heated material in the asthenosphere becomes less dense and rises toward the solid lithosphere, through which it cannot rise further. It therefore begins to move horizontally, dragging the lithosphere along with it and pushing forward the cooler, denser material in its path. The cooler material eventually sinks down lower into the mantle, becoming heated there and rising up again, continuing the cycle. See also plate tectonics.
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