Transversely isotropic lower crust of Variscan central Europe imaged by ambient noise tomography of the Bohemian Massif

Kvapil, Jiří; Plomerová, Jaroslava; Kampfová Exnerová, Hana; Babuška, Vladislav; Hetényi, György; AlpArray Working Group,

doi:https://doi.org/10.5194/se-12-1051-2021

Articles | Volume 12, issue 5

https://doi.org/10.5194/se-12-1051-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

New insights into the tectonic evolution of the Alps and the...

https://doi.org/10.5194/se-12-1051-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 5

Research article

|

11 May 2021

Research article |

| 11 May 2021

Transversely isotropic lower crust of Variscan central Europe imaged by ambient noise tomography of the Bohemian Massif

Jiří Kvapil, Jaroslava Plomerová, Hana Kampfová Exnerová, Vladislav Babuška, György Hetényi, and AlpArray Working Group

Supplement

https://doi.org/10.5194/se-12-1051-2021-supplement

Data sets

CRAB1.0 – A regional-scale crustal model of Bohemian Massif at 0.2° N x 0.3° E from ambient noise tomography J. Kvapil and J. Plomerová https://www.ig.cas.cz/en/teams/seismology/lithosphere-team/\#crab1.0

Short summary

This paper presents a high-resolution 3-D shear wave velocity (v_S) model of the Bohemian Massif crust imaged from high-density data and enhanced depth sensitivity of tomographic inversion. The dominant features of the model are relatively higher v_S in the upper crust than in its surrounding, a distinct intra-crustal interface, and a velocity decrease in the lower part of the crust. The low v_S in the lower part of the crust is explained by the anisotropic fabric of the lower crust.