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Deutsch: Calanda-Schuppe
Français: Écaille du Calanda
Italiano: Scaglia del Calanda
English: Calanda Slice

The Calanda Slice is a post-nappe tectonic slice (due to a late out-of-sequence thrusting) of the parautochthonous cover of the northeastern end of the Aar Massif.

Haldensteiner Calanda (GR)

Parautochthon des Aar-Massivs, Calanda-Decke, Calanda-Schuppe (Bl. Vättis), Calanda Slice (TK500 / Gouffon et al. 2024)

Deutsch: (Internes) Penninikum der Westschweiz
Français: Pennique (Interne) de Suisse occidentale
Italiano: Pennidico (Interno) della Svizzera occidentale
English: (Internal) Penninic of Western Switzerland

In western Switzerland, the internal part of the Penninic domain occupies a large portion of the canton Valais south of the Rhône Valley and extends southward into adjacent Italy. It is situated between the Helvetic (resp. the Lepontic) domain and the Salassic domain (klippes of the Dent Blanche and Mont Mary nappes). In this region, the external part of the Penninic domain lies in the Préalpes.

Pennique valaisan, Penninic in Western Switzerland (TK500 / Gouffon et al. 2024)

Deutsch: Roselette-Decke
Français: Nappe de Roselette
Italiano: Falda di Roselette
English: Roselette Nappe

The Roselette Nappe is a small Upper Helvetic tectonic nappe situated around the southwestern end of the Mont Blanc Massif. It consists of similar basement and sediment rocks as the Mont Chétif Nappe and occupies a similar structural position above the crystalline basement and sedimentary cover of the Mont Blanc Massif. It is characterized by the presence of several internal thrust faults.

Aiguille de Roselette (France)

unité de Roselette (XXX), nappe de Roselette (Epard 1990), Roselette Nappe (TK500 / Gouffon et al. 2024)

Deutsch: Wildhorn-Deckenkomplex
Français: Complexe de nappes du Wildhorn
Italiano: Complesso di falde del Wildhorn
English: Wildhorn Nappe Complex

The Wildhorn Nappe Complex is an Upper Helvetic set of three superposed tectonic nappes in the Western Swiss Alps: the Diablerets Nappe, present only in the southwest, at the base of the complex, is linked by a tight syncline to the Mont Gond Nappe, which is also outcropping mainly in the southwestern part of the complex. The highest Sublage Nappe forms the main body of the complex; it overlies the thin Jägerchrüz Nappe north of Sierre and the Gellihorn Nappe further northeast. The Wildhorn Nappe Complex comprises a complete stratigraphic series ranging from Triassic to Paleogene occupying the Rawil axial depression. It continues to the northeast up to the Kander Valley, where it is replaced by the Axen and Drusberg nappes.

Wildhorn (VS)/(BE)

Wildhorndecke, nappe du Wildhorn, Wildhorn Nappe Complex (TK500 / Gouffon et al. 2024)

Deutsch: Monte-Grona-Störung
Français: Faille du Monte Grona
Italiano: Faglia del Monte Grona
English: Monte Grona Fault

The W–E oriented Monte Grona Fault represents the median segment of the Lugano-Monte Grona-Val Grande Fault System. It extends from northeast of Lugano to Lago di Como and was reactivated as an alpine backthrust (N-directed),

Monte Grona (Italia)

Linea della Grona (Sciesa 1991), Monte Grona Fault (TK500 / Gouffon et al. 2024)

Deutsch: Ulten-Einheit
Français: Unité d'Ulten
Italiano: Unità di Ulten
English: Ulten Unit

East of Val di Peio (Mezzana region), the Ulten Unit overlies the Tonale Gneiss Complex along a pre-Alpine tectonic contact. It is characterized by kyanite-bearing paragneisses and migmatites, containing boudins of amphibolitized eclogites, metagabbros and peridotites. Its metamorphic history (high-pressure event of unknown age, exhumation to a lower crustal depth between Devonian and Carboniferous times, slow cooling during Permian to Jurassic times), as well as its original location in the lower crust within the Variscan orogen, are reminiscent of the Ivrea Zone located south of the Tonale Fault.

Ulten unit = Ulten complex (Hoinkes & Thöni 1993), Ulten-Kristallin, Ulten Unit = Ultimo Unit (TK500 / Gouffon et al. 2024)

Deutsch: «Phyllitgneiszone»
Français: «Phyllitgneiszone»
Italiano: «Phyllitgneiszone»
English: «Phyllitgneiszone»

The “Phyllitgneiszone” is a narrow belt of low-grade basement representing the northern, strongly retrogressed and phyllonitic part of the Silvretta Nappe.

Phyllitgneis (Schmidegg 1959, Hoernes & Purtscheller 1970), nördliche Phyllitgneis-Zone (Trümpy 1972), --- (Amann 1985, Rockenschaub 1990), Phyllite gneiss zone, Phyllitgneiszone (TK500 / Gouffon et al. 2024)

Deutsch: Laas-Decke
Français: Nappe de Laas
Italiano: Falda di Laas
English: Laas Nappe

The Laas Nappe exposes a series of often subvertically northward inclined garnet and staurolite bearing paragneisses, marbles and amphibolites metamorphosed under amphibolite-facies conditions during the Variscan orogeny. Cretaceous metamorphic overprint varies from greenschist facies in the west to lower amphibolite facies in the east. This nappe occupies a much-debated and still unclear position in the Upper Austroalpine nappe pile.

Laas = Lasa (Italia), Val Venosta

Laaser Einheit (Mair et al. 2007), Laas Nappe (TK500 / Gouffon et al. 2024)

Deutsch: Cavistrau-Decke
Français: Nappe du Cavistrau
Italiano: Falda del Cavistrau
English: Cavistrau Nappe

The Cavistrau Nappe is a Lower Helvetic tectonic nappe on the northern flank of the Surselva. It 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.

Cavistrau (GR)

--- (Käch 1969, Käch 1972, Pfiffner 1978, Pfiffner 1985), Cavistrau Nappe (Pfiffner 2011, Berger et al. 2017, Gouffon et al. 2024)

(Parautochthon des Aar-Massivs)

Deutsch: Baden-Irchel-Herdern-Störung
English: Baden-Irchel-Herdern Lineament

Linie Baden (AG) - Irchel (ZH) - Herdern (TG)

Baden-Irchel-Herdern Lineament (Naef et al. 1995, Malz et al. 2016, Gouffon et al. 2024)