Корсаков А.В. Zhukov V.P.The Numerical Modelling of Viscoelastic evolution of the stress in inclusion–host systemsReporter: Zhukov V.P.The distribution of the residual pressure in mineral inclusions in host minerals have been widely used to infer P-T history. The dependence of the lithospheric pressure on depth is well known. So the information about P-T history allows to reconstruct the trajectory of the rock in Earth. This gives information about the earth's crust evolution. In this paper a viscoelastic model was applied for reconstruction of the P-T history of coesite-quartz inclusion in garnet using the residual pressure distribution. The inclusion and the host are assumed to be concentric spheres. The possibility of phase transition coesite quartz and relaxation of the shear stresses are taken into account. The equations are solved numerically. The finite-difference code using shifted grids for 3-D viscoelastic model had been created. The equations, which are of elliptic type were solved by splitting method.
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