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The elastic-plastic-viscous lithosphere |
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| Plate flexure and lithospheric rheology loading of an elastic plate |
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Crust loaded with a chain of seamounts |
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| But -> hydrostatic restoring force of (ρ m-ρw).g.w per unit area. |
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The loading of oceanic crust by a chain of seamounts, and treating them as a line load, the applied line load, q(x), is zero except at x=0. In this case, the differential equation is given by:
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counteracts the loading of an elastic sheet, which can NEVER be in local isostatic equilibrium but regional compensation instead.
If a thickness w of mantle with density ρm has been replaced by water with density ρw, our differential equation becomes: |
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Crust loaded with sediments |
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| The hydrostatic restoring force is (? m-ρc).g.w per unit area since the mantle has been replaced with crustal material, and the differential equation becomes: |
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