Stress-induced late-stage subsidence anomalies in the Pannonian basin

Stress-induced late-stage subsidence anomalies in the Pannonian basin Subsidence, sedimentation and tectonic quiescence of the Pannonian basin was interrupted a few million years ago by tectonic reactivation. This recent activity has manifested itself in uplift of the western and eastern flanks, and continuing subsidence of the central part of the Pannonian basin. Low- to medium-magnitude earthquakes of the Carpathian-Pannonian region are generated mostly in the upper crust by reverse and wrench fault mechanisms. There is no evidence for earthquakes of extensional origin. 2-D model calculation of the subsidence history shows that a recent increase in magnitude of horizontal compressional intraplate stress can explain fairly well the observed Quaternary uplift and subsidence pattern. We propose that this stress increase is caused by the overall Europe/Africa convergence. In Late Pliocene, consumption of subductible lithosphere at the eastern margin of the Pannonian basin was completed, and the lithosphere underlying the Pannonian basin became locked in a stable continental frame. Consequently extensional basin formation has come to an end, and compressional inversion of the Pannonian basin is in progress. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Tectonophysics Elsevier

Stress-induced late-stage subsidence anomalies in the Pannonian basin

Tectonophysics, Volume 266 (1) – Dec 15, 1996

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Publisher
Elsevier
Copyright
Copyright © 1996 Elsevier Ltd
ISSN
0040-1951
eISSN
1879-3266
DOI
10.1016/S0040-1951(96)00194-1
Publisher site
See Article on Publisher Site

Abstract

Subsidence, sedimentation and tectonic quiescence of the Pannonian basin was interrupted a few million years ago by tectonic reactivation. This recent activity has manifested itself in uplift of the western and eastern flanks, and continuing subsidence of the central part of the Pannonian basin. Low- to medium-magnitude earthquakes of the Carpathian-Pannonian region are generated mostly in the upper crust by reverse and wrench fault mechanisms. There is no evidence for earthquakes of extensional origin. 2-D model calculation of the subsidence history shows that a recent increase in magnitude of horizontal compressional intraplate stress can explain fairly well the observed Quaternary uplift and subsidence pattern. We propose that this stress increase is caused by the overall Europe/Africa convergence. In Late Pliocene, consumption of subductible lithosphere at the eastern margin of the Pannonian basin was completed, and the lithosphere underlying the Pannonian basin became locked in a stable continental frame. Consequently extensional basin formation has come to an end, and compressional inversion of the Pannonian basin is in progress.

Journal

TectonophysicsElsevier

Published: Dec 15, 1996

References

  • Contemporary state of stress and neotectonic deformation in the Carpathian-Pannonian region
    Becker, A.
  • Role of pre-rift rheology in kinematics of basin formation: constraints from thermomechanical models of Mediterranean and intracratonic basins
    Cloetingh, S.; van Wees, J.D.; van der Beek, P.A.; Spadini, G.
  • Palaeogeography, subsidence and thermal history of the Neogene Styrian Basin (Pannonian basin system, Austria)
    Ebner, F.; Sachsenhofer, F.
  • Structural evolution of the Transylvanian basin (Romania): a sedimentary basin in a bend zone
    Huismans, R.; Bertotti, G.; Ciulavu, D.; Sanders, C.; Cloetingh, S.; Dinu, C.
  • Lateral extrusion in the Eastern Alps, Part 1. Boundary conditions and experiments scaled for gravity
    Ratschbacher, L.; Merle, O.; Davy, Ph.; Cobbold, P.
  • Subsidence analysis and quantitative basin modelling in the Styrian basin (Pannonian Basin System, Austria)
    Sachsenhofer, R.F.; Lankreijer, A.; Cloetingh, S.; Ebner, F.
  • Tomographic images of the upper mantle below central Europe and the Mediterranean
    Spakman, W.
  • 3D flexure and intraplate compression in the North Sea Basin
    Van Wees, J.D.; Cloetingh, S.

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