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Abstract

Linzer, Hans-Gert, and Previous HitGaborNext Hit C. Tari, 2012, Structural correlation between the Northern Calcareous Alps (Austria) and the Transdanubian Central Range (Hungary), in D. Gao, ed., Tectonics and sedimentation: Implications for petroleum systems: AAPG Memoir 100, p. 249266.

DOI:10.1306/13351556M1003533

Copyright copy2012 by The American Association of Petroleum Geologists.

Structural Correlation between the Northern Calcareous Alps (Austria) and the Transdanubian Central Range (Hungary)

Hans-Gert Linzer,1 Previous HitGaborTop C. Tari2

1Exploration and Production Oil RAG Rohol-Aufsuchungs Aktiengesellschaft Schwarzenbergplatz 16, A-1015 Vienna, Austria (e-mail: [email protected])
2OMV Exploration and Production GmbH Trabrennstrasse 6-8, A-1020 Vienna, Austria (e-mail: [email protected])

ACKNOWLEDGMENTS

Hans-Gert Linzer appreciates the support of the German Science Foundation (grant Li-575) for a research fellowship at Rice University, Houston. Thanks are due to OMV for making some of the reflection seismic lines available for this publication. Many discussions with A. W. Bally, Rice University, Houston, are gratefully acknowledged. We also acknowledge the help of many colleagues from Austria and Hungary such as Tamas Budai, Laszlo Fodor, Wolfgang Frisch, Frank Horvath, Wolfgang Nachtmann, Franz Neubauer, Afred Pahr, Lothar Ratschacher, and Godfrid Wessely. Peer reviews by Terry Pavlis, Hermann Lebit, and Dengliang Gao are greatly appreciated.

ABSTRACT

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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