Mezzaun-Störung
Représentation et statut
- Rang
- accident tectonique
- Usage
- Ce terme n'est pas en usage.
- Status
- terme local (informel)
Nomenclature
- Deutsch
- Mezzaun-Störung
- Français
- Détachement de Mezzaun
- English
- Mezzaun Detachment Fault
- Variantes historiques
-
Mezzaun Detachment Fault (TK500 / Gouffon et al. 2024)
Paléogéographie et tectonique
- Termes génériques
- Type de protolithe
-
- tectonique
- Métamorphisme
- non métamorphique
Références
- Révision
-
(2024) :
Tectonic Map of Switzerland 1:500000, Explanatory notes. Federal Office of Topography swisstopo, Wabern
p.85: The Murtiröl Slice, consisting of basement and cover, forms a dome-like feature in the footwall of an important extensional detachment. This detachment fault and the adjacent Engadine Fault separate the Murtiröl Slice from all the surrounding units belonging to either the Bernina Nappe Complex (in the northwest and southwest) or to the Upper Austroalpine Languard and Ortler nappes (in the east and northeast). This detachment fault is referred to as the Mezzaun Detachment Fault in the southwestern rim of the dome (see Furrer et al. 2015, Fig. 12) but can be followed further to the north, swinging around into a NW– SE strike in the lower Val Trupchun, where the extensional offset becomes more substantial. This is one of the most spectacular normal faults attributed to the Late Cretaceous phase of extension that postdates Cretaceous shortening but predates Cenozoic collision (Froitzheim et al. 1994).