Lechtal-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
- Discussion du statut
Nomenclature
- Deutsch
- Lechtal-Decke
- Français
- Nappe du Lechtal
- Italiano
- Falda del Lechtal
- English
- Lechtal Nappe
- Origine du nom
-
Lechtal (Österreich), Vorarlberg
- Variantes historiques
-
Lechtal-Decke (Ampferer & Hammer 1911, Allemann & Blaser 1951), oberes Bajuvarikum, nappe du Lechtal = unité du Lechtal (Hirsch 1966), Lechtal-Decke = Hochbajuvarikum (Gruber et al. 2010), Lechtal Nappe (TK500 / Gouffon et al. 2024)
- Remarques nomenclatoriales
-
"Lechtaler Hauptmulde" sensu Tollmann (1970a, 1976b), "Zürser Synklinorium" sensu May & Eisbacher (1999)
Description
- Description
-
Hochbajuvarische Decke der Nördliche Kalkalpen (Oberostalpin), die durch Schollen- und Schuppenbau mit Bruchtektonik gekennzeichnet ist. Die stratigraphische Abfolge ist charakterisiert durch mächtig entwickelte und weit verbreitete, jurassische und kretazische Beckensedimente, sowie Schwellensedimente («Zürser Schwelle»).
Hiérarchie et succession
- Unités hiérarchiquement subordonnées
- Unités sus-jacentes
- Limite supérieure
-
Inntal-Decke
- Limite inférieure
-
Allgäu-Decke
Âge
- Âge au sommet
-
- Crétacé Tardif
- Âge à la base
-
- Carbonifère tardif (= Pennsylvanien)
Géographie
- Extension géographique
- Rhätikon, Fürstentum Liechtenstein, Vorarlberg.
Paléogéographie et tectonique
- Paléogéographie
-
marge continentale adriatique
:
southern continental margin / platform
- Termes génériques
- Type de protolithe
-
- tectonique
- Conditions de formation
-
proximales Schelf der Apulischen Platte
Références
- Révision
-
(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.
-
Schesaplana-Schuppe
- Name Origin
-
Massiv/Gipfel der Schesaplana (GR) [«sassa plauna» = ebener Felsblock]
- Rang
- écaille tectonique
- Statut
- terme informel
- En bref
-
The Schesaplana Slice is a tectonic subunit of the Lechtal Nappe at its southwestern border.
-
Gorfion-Schuppe
- Name Origin
- Rang
- écaille tectonique
- Statut
- valide
- En bref
-
The Gorfion Slice is a tectonic subunit of the Lechtal Nappe at its southwestern border.
-
Augstenberg-Schuppe
- Name Origin
- Rang
- écaille tectonique
- Statut
- terme informel
- En bref
-
The Augstenberg Slice is a tectonic subunit of the Lechtal Nappe at its southwestern border.
-
Ochsenkopf-Schuppe
- Name Origin
- Rang
- écaille tectonique
- Statut
- terme local (informel)
- En bref
-
The Ochsenkopf Slice is a tectonic subunit of the western part of the Lechtal Nappe.
-
Heubühl-Schuppe
- Name Origin
-
Heubühl = Heubüal (LI), Saminatal
- Rang
- écaille tectonique
- Statut
- valide
- En bref
-
The Heubühl Slice is a tectonic subunit of the Lechtal Nappe at its southwestern border. It has an exclusively Triassic stratigraphic sequence ranging from «Alpiner Buntsandstein» (Chazforà-/Fuorn-Fm.) up to «Hauptdolomit».
- Age
- Permien tardif
-
Drei-Schwestern-Schuppe
- Name Origin
- Rang
- écaille tectonique
- Statut
- valide
- En bref
-
The Drei Schwestern Slice is a tectonic subunit of the Lechtal Nappe at its northwestern border. It has an exclusively Triassic stratigraphic sequence ranging from «Alpiner Buntsandstein» (Chazforà-/Fuorn-Fm.) up to «Hauptdolomit».
-
«Nördliche Mittagsspitz-Zone»
- Name Origin
-
Mittagsspitz
- Rang
- zone tectonique
- Statut
- terme local (informel)
- En bref
-
The «Northern Mittagspitz Zone», in the eastern Rätikon, is considered to be an inverted sliver derived from the Lechtal Nappe.
-
Madrisa-Schuppe
- Name Origin
- Rang
- zone tectonique
- Statut
- terme informel
- En bref
-
The Madrisa Slice, which is isolated north of Klosters between the Silvretta Nappe above and the Upper Penninic Arosa Zone below, is considered to be an inverted sliver derived from the Lechtal Nappe.
- Age
- Permien