Madrisa-Schuppe
Representation and status
- Color CMYK
- N/A
- Color RGB
- R: 241 G: 239 B: 237
- Rank
- tectonic zone
- Validity
- Unit is in Use
- Status
- informal term
Nomenclature
- Deutsch
- Madrisa-Schuppe
- Français
- Écaille de Madrisa
- Italiano
- Scaglia di Madrisa
- English
- Madrisa Slice
- Origin of the Name
- Historical Variants
-
--- (Seidlitz 1906, Häfner 1924, Trümpy & Haccard 1969), Madrisa-Zone (Tollmann 1970, Haldimann 1975, Burger 1978, Lüdin 1987), Madrisa-Scholle (Pfiffner 2015, Signer et al. 2018), Madrisa Slice (TK500 / Gouffon et al. 2024)
Description
- Description
-
Dünne oberostalpine Scholle in Verkehrtlage zwischen die Arosa-Decke und die Silvretta-Decke.
"Kalkalpine, jungpaläozoische und triadische Gesteine, die in Verkehrtlage unter der Silvretta-Decke liegen" (Burger 1978) ; Partnach-Schiefer + Arlberg-Kalk
Hierarchy and sequence
- Upper boundary
-
Kristallin der Silvretta-Decke
- Lower boundary
-
Arosa-Zone
Age
- Age at top
-
- Triassic
- Age at base
-
- Permian
- Dating Method
-
Karbon - Lias (Lüdin 1987)
Geography
- Geographical extent
- Südöstliches Rätikon, nördlich von Klosters.
References
- Definition
-
(2024) :
Tectonic Map of Switzerland 1:500000, Explanatory notes. Federal Office of Topography swisstopo, Wabern
p.91: In the northern Rätikon mountain range, between Austria, Liechtenstein and Switzerland, the Lechtal Nappe is intersected by out-of-sequence thrust faults, which in places lead to the exposure of isolated lenses of the Arosa Zone. Such thrust faults divide the westernmost Lechtal Nappe into several slices (the Schesaplana, Gorfion, Augstenberg, Ochsenkopf, Heubühl and Drei Schwestern slices; Allemann 2002). The “Northern Mittagspitz Zone”, in the eastern Rätikon (Nagel 2006), 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.