• Nördliche Kalkalpen

    Rang
    domaine tectonique
    Statut
    terme informel
    En bref

    The Northern Calcareous Alps consists of a nappe stack made up exclusively of sedimentary rocks, ranging from the Permian to the Late Cretaceous, occupying the entire northern part of the Austroalpine. These nappes were detached from their crystalline basement during the Late Cretaceous, as inferred from synorogenic Cretaceous deposits. They were affected by top-NW thrusting in the Cretaceous, followed by top-N thrusting in the Cenozoic. This led to a complicated internal structure.

    • Juvavikum

      Rang
      domaine tectonique
      Statut
      terme informel
      En bref

      Höchste Einheit der Nördliche Kalkalpen.

    • Tirolikum

      Rang
      domaine tectonique
      Statut
      terme informel
      En bref

      Mittlere Einheit der Nördliche Kalkalpen

      • Krabachjoch-Decke

        Name Origin

        Krabajoch (Österreich)

        Rang
        nappe
        Statut
        valide
        En bref

        The Krabachjoch Nappe is the upper tectonic unit of the Tirolic Nappe System (Upper Austroalpine) in the Northern Calcareous Alps. It has an exclusively Triassic stratigraphic sequence ranging from «Alpiner Buntsandstein» (Chazforà-/Fuorn-Fm.) up to «Hauptdolomit».

        Age
        Trias
      • Inntal-Decke

        Name Origin

        Inntal (Österreich)

        Rang
        nappe
        Statut
        valide
        En bref

        The Inntal Nappe is the lower tectonic unit of the Tirolic Nappe System (Upper Austroalpine) in the Northern Calcareous Alps. The stratigraphic sequence is characterised by thick Triassic deposits (up to 1700 m of Middle Triassic platform and basin sediments and over 2000 m of peritidal sediments of the Hauptdolomit Group).

    • Bajuvarikum

      Rang
      domaine tectonique
      Statut
      terme informel
      En bref

      Tiefste, nordwestlichte Einheit der Nördliche Kalkalpen

      • Lechtal-Decke

        Name Origin

        Lechtal (Österreich), Vorarlberg

        Rang
        nappe
        Statut
        valide
        Nomenclatorial Remarks
        <p>"Lechtaler Hauptmulde" sensu Tollmann (1970a, 1976b), "Zürser Synklinorium" sensu May &amp; Eisbacher (1999)</p>
        En bref

        The Lechtal Nappe is the upper tectonic unit of the Bajuvaric Nappe System (Upper Austroalpine) in the Northern Calcareous Alps. Its stratigraphic sequence is characterised by thick and widespread Jurassic and Cretaceous basin sediments, as well as local shallow sediments («Zürser Schwelle»).

        In the northern Rätikon mountain range, between Austria, Liechtenstein and Switzerland, it is intersected by out-of-sequence thrust faults, which divided it into several slices (Schesaplana, Gorfion, Augstenberg, Ochsenkopf, Heubühl and Drei Schwestern slices) and also lead to the exposure of isolated lenses of the Arosa Zone. The «Northern Mittagspitz Zone», in the eastern Rätikon, and the Madrisa Slice, which is isolated north of Klosters between the Silvretta Nappe above and the Upper Penninic Arosa Zone below, are considered to be inverted slivers derived from the Lechtal Nappe.

        Age
        Carbonifère tardif (= Pennsylvanien)
        • Schesaplana-Schuppe

          Name Origin

          Massiv/Gipfel der Schesaplana (GR) [«sassa plauna» = ebener Felsblock]

          Rang
          écaille tectonique
          Statut
          terme informel
          En bref

          The Schesaplana Slice is a tectonic subunit of the Lechtal Nappe at its southwestern border.

        • Gorfion-Schuppe

          Name Origin

          Gorvion = Gorfion (Liechtenstein)/(Österreich)

          Rang
          écaille tectonique
          Statut
          valide
          En bref

          The Gorfion Slice is a tectonic subunit of the Lechtal Nappe at its southwestern border.

        • Augstenberg-Schuppe

          Name Origin

          Augstenberg (Liechtenstein)

          Rang
          écaille tectonique
          Statut
          terme informel
          En bref

          The Augstenberg Slice is a tectonic subunit of the Lechtal Nappe at its southwestern border.

        • Ochsenkopf-Schuppe

          Name Origin

          Ochsenkopf (Liechtenstein)/(Österreich)

          Rang
          écaille tectonique
          Statut
          terme local (informel)
          En bref

          The Ochsenkopf Slice is a tectonic subunit of the western part of the Lechtal Nappe.

        • Heubühl-Schuppe

          Name Origin

          Heubühl = Heubüal (LI), Saminatal

          Rang
          écaille tectonique
          Statut
          valide
          En bref

          The Heubühl Slice is a tectonic subunit of the Lechtal Nappe at its southwestern border. It has an exclusively Triassic stratigraphic sequence ranging from «Alpiner Buntsandstein» (Chazforà-/Fuorn-Fm.) up to «Hauptdolomit».

          Age
          Permien tardif
        • Drei-Schwestern-Schuppe

          Name Origin

          Drei Schwestern (AT/LI)

          Rang
          écaille tectonique
          Statut
          valide
          En bref

          The Drei Schwestern Slice is a tectonic subunit of the Lechtal Nappe at its northwestern border. It has an exclusively Triassic stratigraphic sequence ranging from «Alpiner Buntsandstein» (Chazforà-/Fuorn-Fm.) up to «Hauptdolomit».

        • «Nördliche Mittagsspitz-Zone»

          Name Origin

          Mittagsspitz

          Rang
          zone tectonique
          Statut
          terme local (informel)
          En bref

          The «Northern Mittagspitz Zone», in the eastern Rätikon,  is considered to be an inverted sliver derived from the Lechtal Nappe.

        • Madrisa-Schuppe

          Name Origin

          Madrisa (GR)

          Rang
          zone tectonique
          Statut
          terme informel
          En bref

          The Madrisa Slice, which is isolated north of Klosters between the Silvretta Nappe above and the Upper Penninic Arosa Zone below, is considered to be an inverted sliver derived from the Lechtal Nappe.

          Age
          Permien
      • Allgäu-Decke

        Name Origin

        Allgäu (Deutschland)/(Österreich)

        Rang
        nappe
        Statut
        valide
        En bref

        The Allgäu Nappe is the lower tectonic unit of the Bajuvaric Nappe System (Upper Austroalpine) in the Northern Calcareous Alps.

        • Walsertal-Zone

          Name Origin

          Walsertal (Österreich)

          Rang
          zone tectonique
          Statut
          terme informel
          En bref

          Melange-Zone mit wenige Ophiolithe, die eine Fortsetzung der Arosa-Decke zwischen Lichtenstein und dem Allgäu (direkt den Rhenodanubischen Flysch überlagernd) darstellt.

        • Falkenstein-Zug

          Rang
          zone tectonique
          Statut
          terme local (informel)
      • «Cenoman-Randschuppe»

        Rang
        écaille tectonique
        Statut
        terme incorrect (mais utilisé de manière informelle)
        Durée de validité
        Walsertal-Zone
        En bref

        The Cenoman-Randschuppe consists of an imbricate zone of slivers formed at the active margin between the Adriatic continental plate and the Piemonte-Liguria Ocean. It lies at the northern rim of the Upper Austroalpine (Northern Calcareous Alps) and consists of flysch-like coarse-grained deposits.

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