Carpathian Shear Corridor – A strike-slip boundary of an extruded crustal segment

František Marko, Paul A.M. Andriessen, Čestmír Tomek, Vladimír Bezák, Lucia Fojtíková, Marián Bošanský, Milan Piovarči, Peter Reichwalder

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    The Carpathian Shear Corridor (CSC), a morphostructurally distinctive ENE-WSW brittle shear zone, is a prominent dynamic interface of crustal fragments shifted during an oblique collision process combined with lateral extrusions in the Late stages of the Western Carpathians tectonic evolution. This tectonics was due to convection in the upper mantle, driven mainly by slab-pull forces related to a subductional process in front of prograding Carpathians. The CSC separates the marginal segment of the Western Carpathians, already firmly attached to the European plate, from the southern still eastwardly moving block. This process led to structural transpositions, anomalous rotation of small blocks and tilting and uplift/subsidence events, resulting in a tectonic style of horst and intramountaine basin alternations within the corridor. Preliminary paleomagnetic data indicate anomalous CCW block rotations within this corridor, and AFT ages indicate Early and Late Miocene (ca 24–22 Ma and ca 10–7 Ma) fault controlled exhumation events triggered by increased shear zone activity. Deep seismic sections, magnetotelluric and gravity data show that CSC follows a frontal ramp of the Western Carpathians thrust over the foreland. The CSC remains an active strike-slip shear zone, and therefore the most important earthquake risk-zone in the Slovakian portion of the Western Carpathians. It presents a lateral ramp transform boundary of eastwardly extruding crustal segment during the Miocene and up to the recent time.

    Original languageEnglish
    Pages (from-to)119-134
    Number of pages16
    JournalTectonophysics
    Volume703-704
    DOIs
    Publication statusPublished - 22 Apr 2017

    Fingerprint

    corridors
    slip
    shear
    shear zone
    tectonics
    ramps
    Miocene
    block rotation
    extruding
    horst
    Eurasian plate
    extrusion
    tectonic evolution
    exhumation
    alternations
    subsidence
    corridor
    upper mantle
    slab
    thrust

    Keywords

    • Extrusion
    • Neo-alpine evolution
    • Strike-slip faulting
    • Uplift history
    • Western Carpathians

    Cite this

    Marko, F., Andriessen, P. A. M., Tomek, Č., Bezák, V., Fojtíková, L., Bošanský, M., ... Reichwalder, P. (2017). Carpathian Shear Corridor – A strike-slip boundary of an extruded crustal segment. Tectonophysics, 703-704, 119-134. https://doi.org/10.1016/j.tecto.2017.02.010
    Marko, František ; Andriessen, Paul A.M. ; Tomek, Čestmír ; Bezák, Vladimír ; Fojtíková, Lucia ; Bošanský, Marián ; Piovarči, Milan ; Reichwalder, Peter. / Carpathian Shear Corridor – A strike-slip boundary of an extruded crustal segment. In: Tectonophysics. 2017 ; Vol. 703-704. pp. 119-134.
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    abstract = "The Carpathian Shear Corridor (CSC), a morphostructurally distinctive ENE-WSW brittle shear zone, is a prominent dynamic interface of crustal fragments shifted during an oblique collision process combined with lateral extrusions in the Late stages of the Western Carpathians tectonic evolution. This tectonics was due to convection in the upper mantle, driven mainly by slab-pull forces related to a subductional process in front of prograding Carpathians. The CSC separates the marginal segment of the Western Carpathians, already firmly attached to the European plate, from the southern still eastwardly moving block. This process led to structural transpositions, anomalous rotation of small blocks and tilting and uplift/subsidence events, resulting in a tectonic style of horst and intramountaine basin alternations within the corridor. Preliminary paleomagnetic data indicate anomalous CCW block rotations within this corridor, and AFT ages indicate Early and Late Miocene (ca 24–22 Ma and ca 10–7 Ma) fault controlled exhumation events triggered by increased shear zone activity. Deep seismic sections, magnetotelluric and gravity data show that CSC follows a frontal ramp of the Western Carpathians thrust over the foreland. The CSC remains an active strike-slip shear zone, and therefore the most important earthquake risk-zone in the Slovakian portion of the Western Carpathians. It presents a lateral ramp transform boundary of eastwardly extruding crustal segment during the Miocene and up to the recent time.",
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    Marko, F, Andriessen, PAM, Tomek, Č, Bezák, V, Fojtíková, L, Bošanský, M, Piovarči, M & Reichwalder, P 2017, 'Carpathian Shear Corridor – A strike-slip boundary of an extruded crustal segment' Tectonophysics, vol. 703-704, pp. 119-134. https://doi.org/10.1016/j.tecto.2017.02.010

    Carpathian Shear Corridor – A strike-slip boundary of an extruded crustal segment. / Marko, František; Andriessen, Paul A.M.; Tomek, Čestmír; Bezák, Vladimír; Fojtíková, Lucia; Bošanský, Marián; Piovarči, Milan; Reichwalder, Peter.

    In: Tectonophysics, Vol. 703-704, 22.04.2017, p. 119-134.

    Research output: Contribution to JournalArticleAcademicpeer-review

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    AU - Marko, František

    AU - Andriessen, Paul A.M.

    AU - Tomek, Čestmír

    AU - Bezák, Vladimír

    AU - Fojtíková, Lucia

    AU - Bošanský, Marián

    AU - Piovarči, Milan

    AU - Reichwalder, Peter

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