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| Content Provider | Springer Nature Link |
|---|---|
| Author | Růžek, Bohuslav Valentová, Lubica Gallovič, František |
| Copyright Year | 2015 |
| Abstract | Broadband recordings of 88 seismic stations distributed in the Bohemian Massif, Czech Republic, and covering the time period of up to 12 years were processed by a cross-correlation technique. All correlograms were analyzed by a novel approach to get both group and phase dispersion of Rayleigh and Love waves. Individual dispersion curves were averaged in five distinct geological units which constitute the Bohemian Massif (Saxothuringian, Teplá-Barrandean, Sudetes, Moravo-Silesian, and Moldanubian). Estimated error of the averaged dispersion curves are by an order smaller than the inherent variability due to the 3D distribution of seismic velocities within the units. The averaged dispersion data were inverted for 1D layered velocity models including their uncertainty, which are characteristic for each of the geological unit. We found that, overall, the differences between the inverted velocity models are of similar order as the variability inside the geological units, suggesting that the geological specification of the units is not fully reflected into the S-wave propagation velocities on a regional scale. Nevertheless, careful treatment of the dispersion data allowed us to identify some robust characteristics of the area. The vp to vs ratio is anomalously low (~1.6) for all the units. The Moldanubian is the most rigid and most homogeneous part of the Bohemian Massif. Middle crust in the depth range of ~3–15 km is relatively homogeneous across the investigated region, while both uppermost horizon (0–3 km) and lower crust (>15 km) exhibit lower degree of homogeneity. |
| Starting Page | 1663 |
| Ending Page | 1682 |
| Page Count | 20 |
| File Format | |
| ISSN | 00334553 |
| Journal | Pure and applied geophysics |
| Volume Number | 173 |
| Issue Number | 5 |
| e-ISSN | 14209136 |
| Language | English |
| Publisher | Springer International Publishing |
| Publisher Date | 2015-10-27 |
| Publisher Place | Cham |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Ambient noise geological units Bohemian Massif velocity model Geophysics/Geodesy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Geochemistry and Petrology Geophysics |
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