Géoinformatique et géostatistique : un aperçu

Elastic-Dynamic Model Effects on The Crust of Ice Land

Grace Diana Madella

Three-dimensional viscoelastic crustal structure beneath crust was modelled to simulate their crustal deformation by employing a finite-element method and applying boundary conditions of the east-west horizontal compression. The result shows that there are relatively narrow zones of high strain rate at shallow depths, whose pattern is analogous thereto of the Niigata-Kobe tectonic zone revealed by GPS. High strain rates aren't necessarily concentrated in regions where the elastic layer is comparatively thin, but rather where its thickness changes abruptly. Elastic deformation of the solid Earth in response to geological formation loss offers a promising constraint on the density of glacial material lost. Further, the elastic response to modern deglaciation is vital to constrain for studies of glacial isostatic adjustment to work out the mantle's structure and rheology. Models of this elastic uplift are commonly supported the 1‐D, seismically derived global average Preliminary Reference Earth Model and typically neglect uncertainties which will arise from regional differences in elastic structure from that of the worldwide average, lateral heterogeneities within the region, and inelastic behavior of the crust