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Jurassic Tectonostratigraphy of the Austroalpine Domain

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Jurassic Tectonostratigraphy of the Austroalpine Domain Jurassic Tectonostratigraphy of the Austroalpine Domain By GAWLICK, H.-J., MISSONI, S., SCHLAGINTWEIT, F., SUZUKI, H., FRISCH, W., KRYSTYN, L., BLAU, J. & LEIN, R. With 75 figures Key words: Eastern Alps Neotethys Ocean Penninic Ocean Basin evolution Rifting Subduction Lithostratigraphy Addresses of the authors: HANS-JÜRGEN GAWLICK and SIGRID MISSONI University of Leoben Department for Applied Geosciences and Geophysics, Prospection and Applied Sedimentology Peter-Tunner-Strasse 5 8700 Leoben, Austria e-mail: [email protected], [email protected] FELIX SCHLAGINTWEIT Lerchenauer Strasse 167 80935 München, Germany e-mail: [email protected] HISASHI SUZUKI Otani University Koyama-Kamifusa-cho, Kita-ku Kyoto 603-8143, Japan e-mail: [email protected] WOLFGANG FRISCH Karl von Böhmerle Gasse 3 1140 Wien, Austria e-mail: [email protected] LEOPOLD KRYSTYN and RICHARD LEIN University of Vienna Centre for Earth Sciences Althanstrasse 14 1090 Wien, Austria e-mail: [email protected], [email protected] JOACHIM BLAU Feldbergstrasse 5 61191 Rosbach-Rodheim, Germany e-mail: [email protected] Journal of Alpine Geology 50 S. 1-152 Wien 2009 GAWLICK et al.: Jurassic Tectonostratigraphy of the Austroalpine Domain Contents Abstract..........................................................................................................................................................................................................3 1. Introduction................................................................................................................................................................................................4 2. Tectonostratigraphic evolution of the Austroalpine domain..............................................................................................................5 2.1. Austroalpine units facing the Neotethys Ocean............................................................................................................................9 2.1.1. Tirolic nappe group...............................................................................................................................................................9 2.1.2. Reworked Juvavic nappe system = Jurassic Hallstatt Mélange...................................................................................10 Meliata facies zone..............................................................................................................................................................10 Hallstatt Limestone facies zone.........................................................................................................................................11 Zlambach/Pötschen facies zone........................................................................................................................................11 2.1.3. Southern Karavank Mountains.........................................................................................................................................11 Koschuta and Hahnkogel units........................................................................................................................................11 2.2. Austroalpine units between the Neotethys Ocean and the Penninic Ocean................................................................................11 2.2.1. Bavaric nappe group...........................................................................................................................................................11 2.2.2. Drau Range...........................................................................................................................................................................12 Northern Karavank Mountains.........................................................................................................................................12 2.3. Austroalpine units facing the Penninic Ocean.............................................................................................................................12 2.3.1. Lower Austroalpine to Penninic units, p.p. Central Alpine Mesozoic units.................................................................12 2.3.2. Drau Range...........................................................................................................................................................................12 Lienz Dolomites...................................................................................................................................................................12 3. Formations and Lithostratigraphy.........................................................................................................................................................13 3.1. Hettangian to Aalenian....................................................................................................................................................................13 3.1.1. Northern Calcareous Alps and Drau Range.....................................................................................................................14 Schattwald Formation.........................................................................................................................................................14 Kalksburg Formation..........................................................................................................................................................14 Adnet Group........................................................................................................................................................................17 Schnöll Formation...............................................................................................................................................................17 Adnet Formation.................................................................................................................................................................18 Hierlatz Limestone Member...............................................................................................................................................22 Kendlbach Formation.........................................................................................................................................................25 Enzesfeld Formation...........................................................................................................................................................27 Scheibelberg Formation.....................................................................................................................................................30 Kirchstein Limestone..........................................................................................................................................................30 Allgäu Formation.................................................................................................................................................................33 Stadelwiese Member...........................................................................................................................................................37 Lavant Breccia.....................................................................................................................................................................39 Dürrnberg Formation..........................................................................................................................................................39 Birkenfeld Formation...........................................................................................................................................................41 3.1.2. Southern Karavank Mountains = Koschuta and Hahnkogel units..............................................................................45 Hahnkogel Formation.........................................................................................................................................................45 3.1.3. Lower Austroalpine, Central Alpine Mesozoic units......................................................................................................45 Tarntal Breccia in siliciclastically influenced equivalents of the Allgäu Formation...................................................45 Türkenkogel Breccia in siliciclastically influenced equivalents of the Allgäu Formation..........................................47 Nomenclature of polymictic breccias facing the Penninic Ocean.................................................................................48 3.2. Bajocian to Tithonian......................................................................................................................................................................49 3.2.1. Northern Calcareous Alps and Drau Range.....................................................................................................................49 Klaus Formation..................................................................................................................................................................49 Vils Limestone......................................................................................................................................................................53 Chiemgau Series..................................................................................................................................................................55
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