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arXiv · 1802.06313

Deformation of a Half-Space from Anelastic Strain Confined in a Tetrahedral Volume

Sylvain Barbot
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Abstract

Deformation in the lithosphere-asthenosphere system can be accommodated by faulting and plastic flow. However, incorporating structural data in models of distributed deformation still represents a challenge. Here, I present solutions for the displacements and stress in a half-space caused by distributed anelastic strain confined in a tetrahedral volume. These solutions form the basis of curvilinear meshes that can adapt to realistic structural settings, such as a mantle wedge corner, a spherical shell around a magma chamber, or an aquifer. I provide computer programs to evaluate them in the cases of anti-plane strain, in-plane strain, and three-dimensional deformation. These tools may prove useful in the modeling of deformation data in tectonics, volcanology, and hydrology.

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Sylvain Barbot. 2018-06-26. Deformation of a Half-Space from Anelastic Strain Confined in a Tetrahedral Volume. https://doi.org/10.1785/0120180058

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