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Article: Internal Strain Fabric of the Mohelno Serpentinized Peridotite
- Article from:
- Geolines
- Article date:
- January 1, 2005
- Author:
CopyrightCopyright Institute of Geology 2005. Provided by ProQuest LLC. (Hide copyright information)
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A subcrustal lithosphere below internal erogenic zone of the Bohemian Massif was suggested as a mechanically rigid part of the orogeny during Variscan collision (e.g. Babuska and Plomerová 1992). Current studies using anisotropy of seismic P and SKS waves (Babuska and Plomerová 2001) suggest that planes of high seismic velocities in the recent upper mantle are striking approximately E-W and dipping to the south. This fabric is not coherent to vertical, NE-SW oriented high-temperature foliations of lower crustal rocks. It could indicate mechanical decoupling between mantle and crust during Variscan convergence in the Bohemian Massif (Schulmann et al. 2002). Beside seismic anisotropy ...