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Dynamic Earth |
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most prominent observations: |
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-Earth quakes |
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-Volcanos |
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Very
hard to get any data |
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Geochemical/geological observations |
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collect samples at mid-ocean ridges & volcanos |
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--> compare with: |
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- composition of chondrites |
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- each other |
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-> strength is the temporal resolution |
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-> weakness in the spatial domain |
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Being
treated in separate lecture. |
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How to proceed: |
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Gather information about the convective regime
i.e. material properties, boundary conditions, e.t.c. |
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=> have a model of convection in the Earth
mantle and understand the mixing properties |
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=> feed information derived from the
geochemical investigations back into the model and try to refine it until
it fullfills geochemical constrains |
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=>
the SUPER-MODEL |
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