Abstract
The contact zone between the Northern Calcareous Alps and the Rhenodanubian Flysch unit comprises a highly complicated exploration target in the basement of the Neogene Vienna Basin (Austria). The Lainz Tunnel cooperation project incorporates new data from the Lainz Tunnel section in the west of Vienna to get more information on the St. Veit Klippenzone and the surrounding flysch units at the margin of the Northern Calcareous Alps to the Rhenodanubian Flysch. Flysch units encountered in the Lainz Tunnel include the Kahlenberg Formation (Campanian) and the Hütteldorf Formation (Cenomanian-Turonian) of the Kahlenberg Nappe, which were strongly deformed, folded and tectonically mixed. Major tunnel stability problems, like large-volume breakouts, were encountered in red shales of the Hütteldorf Formation. The St. Veit Klippenzone comprises a block-in-matrix structure, partly tectonically mixed with flysch units. The stratigraphic succession includes Triassic Keuper sandstones, Jurassic carbonates and siliceous rocks, and Lower Cretaceous pelagic limestones. The geotectonic position of the St. Veit Klippenzone is interpreted as a northern Austroalpine unit. A direct correlation to the Drietoma unit in the Pieniny Klippen Belt in Slovakia can be established.
Originalsprache | Englisch |
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Titel | 73rd European Association of Geoscientists and Engineers Conference and Exhibition 2011, Incorporating SPE EUROSPEC 2011, Vienna, 23. - 26. May 2011 |
Herausgeber (Verlag) | Unknown publisher |
Seiten | 4904-4908 |
Seitenumfang | 5 |
Band | Bd. 7. |
Publikationsstatus | Veröffentlicht - 2011 |
ÖFOS 2012
- 105404 Geomorphologie
- 105121 Sedimentologie
- 102009 Computersimulation
- 105116 Mineralogie