Nappe du Mont Chétif

Rappresentazione e statuto

Colore CMYK

N/A

Colore RGB

R: 241 G: 239 B: 237

Rango

massiccio di montagne

Uso

Unità in uso.

Status

termine informale

Nomenclatura

Deutsch

Mont-Chétif-Decke

Français

Nappe du Mont Chétif

Italiano

Falda del Mont Chétif

English

Mont Chétif Nappe

Origine del nome

Mont Chétif (Italia), NW Courmayeur

Varianti storiche

massif du Mont Chétif (Argand 1911b), cuneo listrico Ultraelvetico del M. Chetif = cuneo del M. Chetif = scaglia del M. Chetif (Dal Piaz et al. 1992a), massif du Mont Chétif, Mont Chétif Nappe (Gouffon et al. 2024)

Descrizione

Descrizione

Porphyroïdes permiens et sédiments calcaréo-arénacés liasiques (Pian Chercoui).

Età

Geomorfologia

• Primo Giurassico

Età alla base

• Permiano

Paleogeografia e tettonica

Tipo di origine

• tettonico

Referenze

Revisione

Gouffon Yves (Editor) (2024) : Tectonic Map of Switzerland 1:500000, Explanatory notes. Federal Office of Topography swisstopo, Wabern

p.38: A band of sedimentary rocks overlies the sedimentary cover of the Internal Mont Blanc Massif from Saxon in the Rhône Valley up to south of the Mont Blanc summit. It seems to be autochthonous above the small Mont Chétif Massif in the Valle d’Aosta, so this crystalline basement and its sedimentary cover form the Mont Chétif Nappe. This nappe is assumed to be the root of the Wildhorn Nappe Complex situated north of the Rhône (Steck et al. 2001).