Structural Correlation between the Northern Calcareous Alps (Austria) and the Transdanubian Central Range (Hungary)
Hans-Gert Linzer, Gabor C. Tari, 2013. "Structural Correlation between the Northern Calcareous Alps (Austria) and the Transdanubian Central Range (Hungary)", Tectonics and Sedimentation: Implications for Petroleum Systems, Dengliang Gao
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The classical Alpine folded belt of the Northern Calcareous Alps (NCA) of Austria is correlated with the Transdanubian Central Range (TCR) of Hungary using structural and stratigraphic relationships to restore the system. The semiquantitative map-view restoration of several consecutive Alpine deformational periods reveals unexpected similarities between the NCA and TCR. In fact, some west–northwest-trending right lateral strike-slip faults in the TCR (e.g., Telegdi-Roth, Padrag, and Vargesztes faults) are interpreted here for the first time to be analogous to those described from the NCA (e.g., Lammertal, Wolfgangsee-Windischgarsten, and Hochwart faults). These middle to late Miocene transpressional faults are reactivated in the Late Cretaceous tear faults, as can be documented by reflection seismic data in the subsurface of the southeastern Danube Basin. The structural correlation between the NCA and TCR provides further evidence for the much debated interpretation of the TCR in terms of a large Eo-Alpine (Cretaceous) nappe-system in an Uppermost Austroalpine structural position. Furthermore, recognition of a once continuous, regional-scale, right lateral strike-slip fault system in the NCA-TCR areas has a significant impact on the pre-Tertiary kinematic reconstructions of the broader Eastern Alps and Pannonian Basin region.
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The influence of tectonics on sedimentation and hydrocarbon accumulation is different among extensional, strike-slip, and contractional structural styles. Addressing the role of different structural styles and syntectonic sedimentation in petroleum systems is essential to assess the hydrocarbon potential of sedimentary basins. This 18-chapter volume is small enough to focus on the interplay among tectonics, sedimentation, and petroleum systems. Yet it is big enough to cover the diversity of structural styles in important petroliferous sedimentary basins around the globe, including those in west Africa, east Africa, east Brazil, east United States of America, Gulf of Mexico, South China Sea, the Russian Arctic, and the Mediterranean Sea.