Neogene block rotation inside the dextral fault zone at the Adriatic-European collision zone: Reexamination of existing results

•Main active structures in Adria-Europe margin are NW-SE trending dextral faults.•NW-SE trending dextral faults separate area to individual tectonic blocks.•Neogene deformation in Adria-Europe collision zone is driven by CCW block rotation.•σ1 from paleostress data is CCW rotated compared to the reg...

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Veröffentlicht in:Journal of Asian earth sciences 2023-09, Vol.254, p.105723, Article 105723
Hauptverfasser: Žibret, L., Žibret, G.
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Sprache:eng
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Zusammenfassung:•Main active structures in Adria-Europe margin are NW-SE trending dextral faults.•NW-SE trending dextral faults separate area to individual tectonic blocks.•Neogene deformation in Adria-Europe collision zone is driven by CCW block rotation.•σ1 from paleostress data is CCW rotated compared to the regional stress state.•CCW block rotation increased by distance from the main wrench faults. The study focused on the post-Middle-Miocene stress analysis within the dextral strike-slip zone of the Dinaric fault system in the collision zone between the European plate, the Adria microplate and the Pannonian Domain. Block rotations were studied by re-examination of available paleostress data and their spatial distribution. The results are in agreement with the existing block model of the area, indicating CCW rotations within blocks between the main strike-slip faults in which rotation angle increases from W to E. The improved kinematic model, which is proposed in this study, will contribute to the knowledge on the kinematics within the complex collision zones and improve the seismic hazard models.
ISSN:1367-9120
1878-5786
DOI:10.1016/j.jseaes.2023.105723