Modes of orogen-parallel stretching and extensional exhumation in response to microplate indentation and roll-back subduction (Tauern Window, Eastern Alps)

Scharf, Andreas; Handy, Mark R.; Favaro, S.; Schmid, Stefan M.; Bertrand, Audrey

doi:10.1007/s00531-013-0894-4

Cited by 98 publications

(180 citation statements)

References 95 publications

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“…It affected the entire nappe pile within the Tauern Window. This metamorphic event is dated around 23 to 29 Ma (for summary, see Scharf et al, 2013). A deformation acting over 20-30 Ma is indeed enough to create the observed anisotropy assuming typical strain rates (Vinnik et al, 1994;Savage, 1999 Schmid et al, 2004) is suggested to be the main consequence of nearly northward movement of the South Alpine block, acting as a rigid indenter (Ratschbacher et al, 1991;Rosenberg et al, 2004).…”

Section: Resultsmentioning

confidence: 88%

“…Interior parts of the Tauern Window have been affected by multiple folding, too. Structural and kinematic data documenting this evolution have recently been published by Kurz et al (1994Kurz et al ( , 1998, , and Scharf et al (2013).…”

Section: Actively-deforming Tectonic Regions/regimes In Western Northmentioning

confidence: 93%

“…A structural and kinematic reconstruction of deformation events within the Tauern Window is provided by and was refined by Scharf et al (2013). Structures related to internal nappe stacking along distinct thrusts (D0 after are not developed in mesoscale, but can be derived from the WNW-ESE orientation of branch lines within the Venediger Nappe System.…”

Section: Actively-deforming Tectonic Regions/regimes In Western Northmentioning

confidence: 99%

“…Nappe-stacking-related kinematics was reconstructed from maps and field data (for summary, see , and references therein). Kinematics along the Katschberg shear zone and the Brenner fault refer to Genser and Neubauer (1989), Scharf et al (2013), andBehrmann (1988), Selverstone (1988), respectively. Stretching directions are derived from Behrmann (1990), Behrmann and Frisch (1990), , Lammerer and Weger (1998), and Scharf et al (2013).…”

Section: Actively-deforming Tectonic Regions/regimes In Western Northmentioning

confidence: 99%

“…Kinematics along the Katschberg shear zone and the Brenner fault refer to Genser and Neubauer (1989), Scharf et al (2013), andBehrmann (1988), Selverstone (1988), respectively. Stretching directions are derived from Behrmann (1990), Behrmann and Frisch (1990), , Lammerer and Weger (1998), and Scharf et al (2013). Inset (after Hausegger et al 2010) shows tectonic position of Tauern Window (TW) within the Alps-Carpathian-Pannonian system.___________________________________…”

Section: Actively-deforming Tectonic Regions/regimes In Western Northmentioning

confidence: 99%

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Correlated crustal and mantle deformation in the Tauern Window, Eastern Alps

Qorbani¹,

Kurz²,

Bianchi³

et al. 2015

AJES

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Section: Resultsmentioning

confidence: 88%

Section: Actively-deforming Tectonic Regions/regimes In Western Northmentioning

confidence: 93%

Section: Actively-deforming Tectonic Regions/regimes In Western Northmentioning

confidence: 99%

Section: Actively-deforming Tectonic Regions/regimes In Western Northmentioning

confidence: 99%

Section: Actively-deforming Tectonic Regions/regimes In Western Northmentioning

confidence: 99%

See 3 more Smart Citations

Correlated crustal and mantle deformation in the Tauern Window, Eastern Alps

Qorbani¹,

Kurz²,

Bianchi³

et al. 2015

AJES

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Mantle dynamics in the Mediterranean

et al. 2014

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The Mediterranean offers a unique opportunity to study the driving forces of tectonic deformation within a complex mobile belt. Lithospheric dynamics are affected by slab rollback and collision of two large, slowly moving plates, forcing fragments of continental and oceanic lithosphere to interact. This paper reviews the rich and growing set of constraints from geological reconstructions, geodetic data, and crustal and upper mantle heterogeneity imaged by structural seismology. We proceed to discuss a conceptual and quantitative framework for the causes of surface deformation. Exploring existing and newly developed tectonic and numerical geodynamic models, we illustrate the role of mantle convection on surface geology. A coherent picture emerges which can be outlined by two, almost symmetric, upper mantle convection cells. The downwellings are found in the center of the Mediterranean and are associated with the descent of the Tyrrhenian and the Hellenic slabs. During plate convergence, these slabs migrated backward with respect to the Eurasian upper plate, inducing a return flow of the asthenosphere from the back-arc regions toward the subduction zones. This flow can be found at large distance from the subduction zones and is at present expressed in two upwellings beneath Anatolia and eastern Iberia. This convection system provides an explanation for the general pattern of seismic anisotropy in the Mediterranean, first-order Anatolia, and Adria microplate kinematics and may contribute to the high elevation of scarcely deformed areas such as Anatolia and eastern Iberia. More generally, the Mediterranean is an illustration of how upper mantle, small-scale convection leads to intraplate deformation and complex plate boundary reconfiguration at the westernmost terminus of the Tethyan collision.

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Geometry, amount, and sequence of thrusting in the Subalpine Molasse of western Austria and southern Germany, European Alps

et al. 2015

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In this paper we review the structure of the most external thrust belt of the Alps between the Rhein valley and Salzburg based on a new tectonic map and the (re)interpretation of seismic sections. Specifically we address the correlation between deformation in the Subalpine Molasse and the Alpine thrust belt in general and focus on the control of sedimentary facies on the structural style. A dramatic change in architecture from a ramp-flat structure to buckle folding is related to a change from coarse-grained fans to fine-grained deposits within the Subalpine Molasse. Additionally the interaction of escape tectonics with postcollisional shortening controls the decrease of late Early Miocene and younger shortening within the Subalpine Molasse from 50 km near the Rhine valley to almost zero near Salzburg. Transfer of shortening into the hinterland, which is the zone of lateral escape, ended foreland propagation of the Alpine thrusts and initiated a general break-back sequence of thrusting. Throughout this time the thrusts remained active. In such a scenario, tectonic units on top of the Subalpine Molasse are expected to undergo clockwise rotation around vertical axes. As thrusting in the Subalpine Molasse is closely related to contemporaneous transport and shortening within the tectonically higher Helvetic thrust sheets, amounts of Miocene differential shortening and related clockwise vertical axis rotation are minimum amounts. True clockwise vertical axis rotation is probably larger than the 12°deduced from the Subalpine Molasse thrust belt.

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Modes of orogen-parallel stretching and extensional exhumation in response to microplate indentation and roll-back subduction (Tauern Window, Eastern Alps)

Cited by 98 publications

References 95 publications

Correlated crustal and mantle deformation in the Tauern Window, Eastern Alps

Correlated crustal and mantle deformation in the Tauern Window, Eastern Alps

Mantle dynamics in the Mediterranean

Geometry, amount, and sequence of thrusting in the Subalpine Molasse of western Austria and southern Germany, European Alps

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