Effects of seismic anisotropy on P-velocity tomography of the Baltic Shield

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F12%3A00368187" target="_blank" >RIV/67985530:_____/12:00368187 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1111/j.1365-246X.2011.05280.x" target="_blank" >http://dx.doi.org/10.1111/j.1365-246X.2011.05280.x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/j.1365-246X.2011.05280.x" target="_blank" >10.1111/j.1365-246X.2011.05280.x</a>

Result language
angličtina
Original language name
Effects of seismic anisotropy on P-velocity tomography of the Baltic Shield
Original language description
We investigate possible effects of neglecting seismic anisotropy on standard isotropic P velocity tomographic images of the upper mantle beneath the Baltic shield. Isotropic inversions of teleseismic P- and S-wave traveltimes exhibit alternating high- and low-velocity heterogeneities down to depths of over 400 km. Differences in tomographic inversions of SV- and SH-wave traveltimes are distinct down to depths of about 200 km and are associated with anisotropy of the lithospheric mantle. Anisotropic structures of the upper mantle affect both the P and S traveltimes, shear-wave splitting as well as the P polarization directions. Joint inversion for isotropic and anisotropic velocity perturbations is not feasible due to the limited 3-D ray coverage of available data.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DC - Seismology, volcanology and Earth structure
OECD FORD branch
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Project
<a href="/en/project/IAA300120709" target="_blank" >IAA300120709: Mantle lithosphere of north-central Europe ? mosaic of micro-continents</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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