Upper crustal structure of the northern part of the Bohemian ­Massif in ­rel­ation­ t­o geological, potential field data and new deep seismic data (Eger/Ohře Rift, Central Europe)

0372604 - GFÚ 2012 RIV DE eng J - Journal Article
Skácelová, Z. - Mlčoch, B. - Novotný, Miroslav - Mrlina, Jan
Upper crustal structure of the northern part of the Bohemian ­Massif in ­rel­ation­ t­o geological, potential field data and new deep seismic data (Eger/Ohře Rift, Central Europe).
Zeitschrift für geologische Wissenschaften. Roč. 39, č. 1 (2011), s. 1-18. ISSN 0303-4534
R&D Projects: GA AV ČR IAA300460602; GA MŽP SB/630/3/02
Institutional research plan: CEZ:AV0Z30120515
Keywords : upper crustal structure * Bohemian Massif * Eger/Ohře Rift * Saxothuringian Zone * Teplá-Barrandian Unit * Moldanubian Zone
Subject RIV: DC - Siesmology, Volcanology, Earth Structure

The latest international seismic refraction experiment in the Central Europe SUDETES 2003 covered also the territory of the northern part of the Bohemian Massif. The profile S01 follows the SW-NE axis of the Eger/Ohře Rift in Northwestern Bohemia. The dictinct first arrivals of Pg waves were used to derive a 2-D tomographic velocity model with an optimum lateral resolution. The innovative DRTG method was applied in iterative mode to minimize linearized errors of tomographic inversion. The iteration process yielded a fine-grid velocity model with a required level of RMS travel-time fit and the model rouhgness. The time residuals were assessed at single grid depth levels and used to derive the statistical lateral resolution of "lens-shaped" velocity anomalies: for the 95% confidence level and 5% anomalies, one can resolve their lateral sizes from 15 to 40 km at the depths from 0 to 20 km.
Permanent Link: http://hdl.handle.net/11104/0205877