Cavistrau-Decke
Représentation et statut
- Couleur CMYK
- N/A
- Couleur RGB
- R: 241 G: 239 B: 237
- Rang
- nappe
- Usage
- Ce terme est en usage.
- Status
- valide
Nomenclature
- Deutsch
- Cavistrau-Decke
- Français
- Nappe du Cavistrau
- Italiano
- Falda del Cavistrau
- English
- Cavistrau Nappe
- Origine du nom
- Variantes historiques
-
--- (Käch 1969, Käch 1972, Pfiffner 1978, Pfiffner 1985), Cavistrau Nappe (Pfiffner 2011, Berger et al. 2017, Gouffon et al. 2024)
- Remarques nomenclatoriales
-
(Parautochthon des Aar-Massivs)
Références
- Définition
- (2011) : Structural map of the Helvetic Zone of the Swiss Alps, including Vorarlberg (Austria) and Haute Savoie (France), 1:100'000. Geol. Spec. Map, Explanatory Notes 128
- Révision
-
(2024) :
Tectonic Map of Switzerland 1:500000, Explanatory notes. Federal Office of Topography swisstopo, Wabern
p.36: A peculiar unit is the Cavistrau Nappe (Käch 1969, 1972, Pfiffner 1978, 1985), which crops out on the northern flank of the Surselva. This nappe represents an overturned sequence of Permian to Late Jurassic sediments, which was emplaced onto the Trun-Punteglias Submassif as a W-facing recumbent fold and replaced the autochthonous Jurassic–Paleogene strata that were detached and transported farther nothwestwards. This fault-bend fold formed at the western margin of the Glarus Verrucano basin during inversion of this basin (Pfiffner 2014). It represents an embryonic stage of the Glarus Thrust that subsequently cut the Cavistrau Nappe by out-of-sequence thrusting.