Lithospheric Structure and Tectonics of the Eastern Alps – Evidence from New Seismic Data

Brückl, Ewald

doi:10.5772/14364

Cited by 8 publications

(9 citation statements)

References 83 publications

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“…In addition, such a deep LAB has been estimated only along one single line from one method, whereas the two other methods and our own modeling results indicate that a shallower LAB is more realistic. The thickest lithosphere in the study area is present underneath the southern edge of the EEC and in the Eastern Alps (Figure d). The extremely thick lithosphere in the Eastern Alps is caused by subducted slab(s) underneath a triple junction of the ADRIA, ALCAPA, and Tisza‐Dacia microplates, which are still sinking into the deeper mantle [e.g., Brückl , ]. The subducted slabs below the Eastern Alps as imaged by the seismic tomography models of Lippitsch et al .…”

Section: Discussionmentioning

confidence: 99%

“…[], Koulakov et al . [], and Brückl [] reach depths of 500 km. The velocity changes are, however, very pronounced at depths of 200–250 km in all three models (Table ).…”

Section: Discussionmentioning

confidence: 99%

“…The thickest lithosphere in the study area is present underneath the southern edge of the EEC and in the Eastern Alps (Figure 7d). The extremely thick lithosphere in the Eastern Alps is caused by subducted slab(s) underneath a triple junction of the ADRIA, ALCAPA, and Tisza-Dacia microplates, which are still sinking into the deeper mantle [e.g., Brückl, 2011]. The subducted slabs below the Eastern Alps as imaged by the seismic tomography models of Lippitsch et al [2003], Koulakov et al [2009], andBrückl [2011] reach depths of 500 km.…”

Section: Sensitivity Study: Influence Of Mantle Lithosphere (Its Thicmentioning

confidence: 99%

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Lithospheric structure of Central Europe: Puzzle pieces from Pannonian Basin to Trans‐European Suture Zone resolved by geophysical‐petrological modeling

et al. 2016

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We have analyzed the thermochemical structure of the mantle in Central Europe, a complex area with a highly heterogeneous lithospheric structure reflecting the interplay of contraction, strike slip, subduction, and extension tectonics. Our modeling is based on an integrative 3‐D approach (LitMod) that combines in a self‐consistent manner concepts and data from thermodynamics, mineral physics, geochemistry, petrology, and solid Earth geophysics. This approach minimizes uncertainties of the estimates derived from modeling of various data sets separately. To further constrain our 3‐D model we have made use of the vast geophysical and geological data (2‐D and 3‐D, shallow/crustal versus deep lithospheric experiments) based on experiments performed in Central Europe in the past decades. Given the amount and the different nature/resolution of the available constraints, one of the most challenging tasks of this study was to consistently combine them, finding a trade‐off between all local and regional data sets available in a way that (i) preserves as many structural details as possible and (ii) summarizes those data sets into a single robust regional model. The resulting P/T‐dependent mantle densities are in LitMod 3‐D calculated based on a given mineralogical composition. They therefore provide more reliable estimates compared to pure gravity models, which enhance modeling of the crustal structures. Our results clearly indicate presence of several lithospheric domains characterized by distinct features, Pannonian Basin being one of the most outstanding ones. It has the thinnest crust and lithosphere in the area modeled, characterized by relatively fertile composition.

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Section: Discussionmentioning

confidence: 99%

“…[], Koulakov et al . [], and Brückl [] reach depths of 500 km. The velocity changes are, however, very pronounced at depths of 200–250 km in all three models (Table ).…”

Section: Discussionmentioning

confidence: 99%

Section: Sensitivity Study: Influence Of Mantle Lithosphere (Its Thicmentioning

confidence: 99%

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Lithospheric structure of Central Europe: Puzzle pieces from Pannonian Basin to Trans‐European Suture Zone resolved by geophysical‐petrological modeling

et al. 2016

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“…Teleseismic studies in the Western and Eastern Alps (LIPPITSCH et al 2003;DANDO et al 2011;MITTERBAUER et al 2011) targeted the deep lithosphere and contribute to an ongoing debate on slab geometry and subsequent geodynamic implications (e.g., KISSLING et al 2006;BRÜ CKL 2011). GEISSLER et al (2008) produced a Moho map for central and Eastern Europe using receiver functions, which gives coarse information on the crustal structure involving stations with a spacing of hundreds kilometers.…”

Section: Introductionmentioning

confidence: 99%

A New Seismic Data Set on the Depth of the Moho in the Alps

Bianchi

Behm

Rumpfhuber

et al. 2014

Pure Appl. Geophys.

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We present the results from receiver function analysis applied to a comprehensive data set in the Eastern Alps. Teleseismic events were recorded at 70 stations with an average deployment of 1 year. The investigated area includes the eastern part of the Eastern Alps and their transition to the Bohemian Massif, the Pannonian domain, and the Southern Alps. The crustal structure at each station is examined with the Zhu-Kanamori (ZK) method, which yields well-resolved interface depths in laterally homogeneous media with limited layering. The application of the ZK technique is challenged because of the complex tectonic setting; therefore, we include additional constraints from recent active-source seismic studies. In particular, the well-known crustal P-wave velocity and, where available, the V p /V s ratio are kept fixed, thus reducing the ambiguity in determining Moho depths. Individual depth values vary strongly between adjacent stations, showing that the employment of the ZK technique in tectonically complex settings is limited. We therefore avoid interpreting the results in detail, but rather compare them to existing crustal models of the Eastern Alps. We regard this receiver function study in the easternmost part of the Alps as a documentation of a data set that has potential to be exploited in the future.

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“…Roughly said, the adjoining Alps consist of nappes stacked due to the collision and subduction processes in the Mediterranean area during Late Cretaceous to Cenozoic times (Schmid et al 2004a, b;Handy and Rosenberg 2011). These calcareous nappes are punctuated by crystalline domes uplifted during the long time of tectonic activity, which are today outcropping in tectonic windows in the Alps (Tauern, Engadine and Rechnitz windows, Brückl 2011). Caused by tectonic processes related to the continental collision of Europe and Africa, large-scale fault zones occur in the Molasse Basin and the Alps (Schmid et al 2004a, b).…”

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confidence: 99%

The 3D conductive thermal field of the North Alpine Foreland Basin: influence of the deep structure and the adjacent European Alps

2015

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Lithospheric Structure and Tectonics of the Eastern Alps – Evidence from New Seismic Data

Cited by 8 publications

References 83 publications

Lithospheric structure of Central Europe: Puzzle pieces from Pannonian Basin to Trans‐European Suture Zone resolved by geophysical‐petrological modeling

Lithospheric structure of Central Europe: Puzzle pieces from Pannonian Basin to Trans‐European Suture Zone resolved by geophysical‐petrological modeling

A New Seismic Data Set on the Depth of the Moho in the Alps

The 3D conductive thermal field of the North Alpine Foreland Basin: influence of the deep structure and the adjacent European Alps

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