Quantitative structural analyses and numerical modelling of ...

2. Mechanisms of lower crustal flow and its thermal and mechanical implications 25Figure 2.7: Example of finite element modelling of crustal indentation of orogenicroot. This model was calculated using modified Elmer software (Maierová, 2011) andincludes temperature and strain rate dependent rheology, erosion, isostasy and gravitationalforces to simulate more realistic geodynamic evolution.our study from West Carpathians. To understand this process we need to examine avariety of heat sources such as the mantle delamination, radiocative mantle or radioactivelower crust. We will orient our research in future to understand relative role of variableheat sources, the rheology of crust, kinematics of gravity overturns and more realisticgeometries of rock bodies.Horizontal flow of orogenic lower crust over the Brunia indenter along eastern marginis a problem that also requires the rheological and thermal scaling. For this purpose weset up finite element models (Fig. 2.7), which could solve the problem of material transferefficiency of channel flow, velocity and strain-rate field patterns as well as temperature