English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We analyse splitting of teleseismic shear waves recorded during the PASSEQpassive experiment (2006–2008) focused on the upper mantle structure acrossand around the Trans-European Suture Zone (TESZ). Altogether 1009 pairs ofthe delay times of the slow split shear waves and orientations of thepolarized fast shear waves exhibit lateral variations across the array, aswell as back-azimuth dependences of measurements at individual stations.Variable components of the splitting parameters can be associated withfabrics of the mantle lithosphere of tectonic units. In comparison with adistinct regionalization of the splitting parameters in the Phanerozoic partof Europe that particularly in the Bohemian Massif (BM) correlate with thelarge-scale tectonics, variations of anisotropic parameters around the TESZand in the East European Craton (EEC) are smooth and of a transitionalcharacter. No general and abrupt change in the splitting parameters(anisotropic structure) can be related to the Teisseyre–Tornquist Zone(TTZ), marking the edge of the Precambrian province on the surface. Instead,regional variations of anisotropic structure were found along the TESZ/TTZ.The coherence of anisotropic signals evaluated beneath the northern part ofthe Brunovistulian in the eastern rim of the BM and the pattern continuationto the NE towards the TTZ, support the idea of a common origin of thelithosphere micro-plates, most probably related to Baltica. Smooth changes inpolarizations of the core-mantle boundary refracted shear waves (SKS),polarizations, or even a large number of null splits northward of the BM andfurther across the TESZ towards the EEC indicate less coherent fabrics and atransitional character of structural changes in the mantle beneath thesurface trace of the TESZ/TTZ. The narrow and near-vertical TTZ in the crustdoes not seem to have a steep continuation in the mantle lithosphere. Themantle part of the TESZ, whose crust was formed by an assemblage of suspectterranes adjoining the EEC edge from the southwest, appears in ourmeasurements of anisotropy as a relatively broad transitional zone in betweenthe two lithospheric segments of different ages. We suggest a southwestwardcontinuation of the Precambrian mantle lithosphere beneath the TESZ and theadjacent Phanerozoic part of Europe, probably as far as towards the BohemianMassif

Mantle lithosphere transition from the East European Craton to the Variscan Bohemian Massif imaged by shear-wave splitting