Bündner slate

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Geology of the Alps
Mont Blanc
Tectonic subdivision

Helvetic nappes

Penninic nappes
Austroalpine nappes
Southern Alps
Formations & rocks

Bündner slate | flysch | molasse

Geological structures

Aarmassif | Dent Blanche klippe | Engadine window | Flysch zone | Giudicárie line | Greywacke zone | Hohe Tauern window | Molasse basin | Penninic thrustfront | Periadriatic Seam | Ivrea zone | Lepontin dome | Rechnitz window | Rhône-Simplon line | Sesia unit

Paleogeografic terminology

Valais Ocean

Briançonnais microcontinent
Piemont-Liguria Ocean
Apulian or Adriatic plate

The Bündner slate (German: Bündnerschiefer) is a geologic formation found in the Penninic nappes in the Alps. In French the name shistes lustrés is used.

The formation is a few kilometers thick monotonous layer of Mesozoic dark claystone, marl and sandy limestone. These sedimentary rocks were metamorphosed to calcareous phyllites, a rock abundant in micas that define their dominant foliation.

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