Deutsch: Arosa-Zone
Français: Zone d'Arosa
Italiano: Zona di Arosa
English: Arosa Zone
The Upper Penninic Arosa Zone, always located at the base of the Austroalpine units to which it was accreted in Late Cretaceous times, is a mélange zone of heterogeneous composition. It consists of a shaly matrix with slivers of ophiolites (e.g. Totalp Ophiolite Complex), pelagic sediments and flysch sequences, as well as crystalline basement and Triassic sediments with Austroalpine affinity.
Arosa (GR)
Aroser Aufbruchszone (Steinmann ----), Mischungszone von Elementen der Rätischen Decke mit Gesteinen der Unterostalpinen Decken (Zyndel 1912), Aroser Schuppenzone (Cadisch 1922, Ott 1922, Allemann & Blaser 1951), Aroser-Schuppenzone (Gees 1954), Arosa-Zone (Haldimann 1975, Friebe 2007), «Ophiolith-Melange», Argille scagliose von ligurischem Charakter (Büchi & Trümpy 1976), nappe d'Arosa (Trümpy 1976), Arosa-Zone = südpenninisch-unterostalpiner Grenzbereich = südpenninisch-unterostalpine Mischzone (Lüdin 1987), Arosa Zone = Arosa-Zone = Zone d'Arosa (Ring et al. 1990), Zone des Ecailles d'Arosa (Kunz 1991), Aroser Schuppenzone = Subduktionsmélange (Keller & Locher 1994), zone d'Arosa (Bousquet 1998), Arosa-Decke (Signer et al. 2018), Arosa Zone (TK500 / Gouffon et al. 2024)