Results of Stationary Thermal Fields modeling for Urals region

Authors present results of stationary thermal fields modeling. Thermal production and thermal conductivity models are constructed. To calculate thermal production recalculation of density model using known correlation between density and thermal production was used. 3D thermal production model was constructed for the Urals region. For the thermal conductivity there is no such a correlation and no visible relation between density and thermal conductivity exists. Authors took piecewise constant function, which is obtained by rock examples, and used it for layerwise construction of 3D model of crustal distribution of thermal conductivity. On the last stage mantle component of heat flux is calculated and comparison to a map of tectonic structures is performed. Agreement of recalculated thermal anomalies with mantle boundary is more informative than with the map of tectonic zoning. This is understandable since different factors of physical nature are involved into formi ng of thermal and gravity fields of Earth's crust. All elements that are required for evaluation of mantle heat flux are taken into account by authors in the process of 3D velocity and density models construction. Inner consistency of the results obtained by gravity and thermal fields doesn't disagree with DSS data, which means that author's method is effective.