Deep structure of the bohemian massif from phase velocities of Rayleigh and Love waves |
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| Authors: | Erhard Wielandt Andreas Sigg Axel Ple?inger Josef Horálek Reviewer K Pě? |
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| Institution: | (1) Institute of Geophysics, Swiss Federal Inst. of Technology, Zürch;(2) EHT Hönggerberg, P. O. B. 266, CH-8093 Zürich;(3) Geophysical Institute, Czechosl. Acad. Sci., Prague |
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| Abstract: | Summary Phase velocities of Rayleigh and Love waves have been measured between the broadband seismic stations KHC (Ka perské Hory, South Bohemia) and KSP (Ksi  , Lower Silesia), a profile that nearly coincides with the Interactional DSS Profile VII. The data for both wave types were separately inverted into models of shear-wave velocity versus depth. Novotný's model KHKS 821] for the DSS Profile VII was used as a start model. While the crustal section of Novotný's model is compatible with both of our data sets, our Rayleigh-wave data require smaller shear-wave velocities, on the average by 0.24 km/s, in the top 180 km of the mantle. The average difference between Novotný's model and our Love-wave model in that depth range is only 0.06 km/s. If our identification of the observed Love waves as the fundamental mode is correct, this result indicates the presence of polarization anisotropy in the uppermost mantle.
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