Mantle viscosity from glacial isostatic adjustment
= Mantle viscosity from glacial isostatic adjustment
Infer mantle relaxation from dated relative sea levels and shorelines, geodetic <displacements>, <gravity> changes and a reconstructed ice/water load history. The inferred <viscosity> trades off with ice history, lithospheric thickness, radial structure and transient <rheology>, so independent constraints and uncertainty propagation are essential.