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| Conclusion
time-dep. convection with |
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| variable viscosity |
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|
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| Two different
processes: |
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| - | efficient mixing
within a cell |
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| - | -large scale
transport due to plate motion causing |
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| - | cell
reorganization |
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| - | - enhanced
mixing in direction of the plate motion |
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| - | - could
eventually explain observed geochemical |
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| - | differences in MORB |
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| BUT: |
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| very simple model which with many
problems |
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