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| Titel |
Deformations in Central Europe: finite element approach and comparison with GPS-based strain determinations |
| VerfasserIn |
Janusz Bogusz, Marek Jarosiński, Andrzej Araszkiewicz, Mariusz Figurski, Anna Klos, Bernard Kontny |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250077888
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| Zusammenfassung |
| From a geological point of view, the area of Central Europe is very complex. At the same time Europe is being affected by the forces associated with tectonic Africa, as well as Atlantic (ridge) push. In our study the general strain pattern of Central Europe was determined from two different approaches. The first one was finite element approach (FEM). The area of Europe was subdivided into more than 50 elements corresponding to the main geological units and the two-dimensional model of strain field in Central Europe was developed. In order to model a diverse nature of geological structures two approaches were investigated: elastic and more sophisticated made by adding some viscosity properties. Various parameters (Young’s modulus, Poisson's ratio, lithosphere thickness, etc.) with the use of the ABAQUS software were implemented. The second approach was based on the method using sites’ velocities determined by continuous GPS measurements. EPN network as well as ASG-EUPOS Polish system were utilised. More than 300 European sites with the precisely known velocities in global ITRF2008 reference frame formed the basis for these determinations by using GRID_STRAIN software. This geometrical method allows determining the magnitude and the main strain directions as well. The presentation describes results of numerical calculations and their comparison on the area of Central Europe. |
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