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Semi-analytical solution for the viscoelastic relaxation in spherical earth with an axisymmetric craton

Martinec, Z. (2002) Semi-analytical solution for the viscoelastic relaxation in spherical earth with an axisymmetric craton. Acta Geodaetica et Geophysica Hungarica, 37 (1). pp. 61-78. ISSN 1217-8977

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Abstract

We present a semi-analytical solution for 2D forward modelling of viscoelastic relaxation in a spherical earth model with a nested axisymmetric craton. The present semi-analytical approach provides a model response against which more general numerical algorithms can be validated.  Numerically, we model the impact of a high-viscosity craton located below the lithosphere in Fennoscandia on surface vertical and horizontal displacements. In agreement with previous results, we show that a high-viscosity region in the upper mantle can influence surface vertical displacements by the order of 10 percent in magnitude. This effect is much greater for surface horizontal displacements and may change completely the pattern of surface movements.

Item Type: Article
Subjects: Q Science / természettudomány > QE Geology / földtudományok > QE01 Geophysics / geofizika
Depositing User: Endre Sarvay
Date Deposited: 22 Jul 2018 09:34
Last Modified: 08 Sep 2018 08:23
URI: http://real.mtak.hu/id/eprint/81947

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