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Three-dimensional velocity model of the crust of the Bohemian Massif and its effects on seismic tomography of the upper mantle

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    0371430 - GFÚ 2013 RIV CZ eng J - Journal Article
    Karousová, Hana - Plomerová, Jaroslava - Babuška, Vladislav
    Three-dimensional velocity model of the crust of the Bohemian Massif and its effects on seismic tomography of the upper mantle.
    Studia geophysica et geodaetica. Roč. 56, č. 1 (2012), s. 249-267. ISSN 0039-3169. E-ISSN 1573-1626
    R&D Projects: GA ČR GA205/07/1088; GA AV ČR IAA300120709
    Institutional research plan: CEZ:AV0Z30120515
    Keywords : crustal structure * seismic methods * Bohemian Massif * teleseismic tomography
    Subject RIV: DC - Siesmology, Volcanology, Earth Structure
    Impact factor: 0.975, year: 2012

    We have compiled a representative three-dimensional P-velocity model of the crust of the Bohemian Massif (BM) to provide a basis for removing effects of the crustal structure in teleseismic tomography of the upper mantle. The model is primarily based on recently published 2D velocity models from findings of wide-angle refraction and near-vertical reflection seismic profiles of CELEBRATION 2000, ALP 2002, and SUDETES 2003 experiments. The best fitting 3D model of the BM crust (NearNeighbour model) is complemented by velocities according to the reference Earth model at sites where data are sparse, which precludes creating artificial heterogeneities that are products of interpolation method. To test the model, we have performed tomographic inversions of the P-wave travel times measured during the BOHEMA II experiment and compared the results obtained with and without crustal corrections.
    Permanent Link: http://hdl.handle.net/11104/0204945

     
     
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