Shear wave crustal velocity model of the Western Bohemian Massif from Love wave phase velocity dispersion

0357045 - ÚSMH 2011 RIV NL eng J - Journal Article
Kolínský, Petr - Málek, Jiří - Brokešová, J.
Shear wave crustal velocity model of the Western Bohemian Massif from Love wave phase velocity dispersion.
Journal of Seismology. Roč. 15, č. 1 (2011), s. 81-104. ISSN 1383-4649. E-ISSN 1573-157X
R&D Projects: GA AV ČR IAA300460602; GA AV ČR IAA300460705; GA ČR(CZ) GA205/06/1780
Institutional research plan: CEZ:AV0Z30460519
Keywords : love waves * phase velocity dispersion * frequency-time analysis
Subject RIV: DC - Siesmology, Volcanology, Earth Structure
Impact factor: 1.326, year: 2011
www.springerlink.com/content/w3149233l60111t1/

We propose a new quantitative determination of shear wave velocities for distinct geological units in the Bohemian Massif. We have developed a modified version of the classical multiple filtering technique for the frequency-time analysis and we apply it to two-station phase velocity estimation. Two of the profiles crossing the older Moldanubian and Tepla-Barrandian units are characterized by higher velocities of 3.8 km/s in the upper crust while for the Saxothuringian unit we find the velocity slightly lower, around 3.6 km/s at the same depths. We obtain an indication of a shear wave low velocity zone above Moho in the Moldanubian and Tepla-Barrandian units. The area of the Eger Rift (Tepla-Barrandian-Saxothuringian unit contact) is significantly different from all other three units.
Permanent Link: http://hdl.handle.net/11104/0195415