Mont-Blanc Externe

Rappresentazione e statuto

Index

MBE

Colore CMYK

N/A

Colore RGB

R: 241 G: 239 B: 237

Rango

tettonica

Uso

Unità in uso.

Status

valido

Nomenclatura

Deutsch

Externes Mont-Blanc-Massiv

Français

Mont-Blanc Externe

Italiano

Monte Bianco esterno

Varianti storiche

Mont-Blanc Externe

Descrizione

Descrizione

Patrie de la nappe de Morcles. Seules les séries basales du Trias/Lias forment des lambeaux autochthones.

Gerarchia e successione

Unità di rango inferiore

• Granite du Montenvers
• Orthogneiss de Lognan

Geografia

Estensione geografica

Bordure NW du massif entre les Contamines, Chamonix et Martigny. Il est limité au SE par la faille de l'Angle et la faille de Combe Noire.

Referenze

Revisione

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

p.33: The Mont Blanc Massif is divided into an external and an internal part by a major fault. Each of these two parts includes a sedimentary cover. The external part is made of gneisses and granites and its sedimentary cover lies in its external, reverse limb and forms the main part of the sediments of the “Chamonix Syncline”. The Morcles Nappe is supposed to be rooted in this external part (Steck et al. 2001). [...]

Pubblicazioni importanti

Escher Arthur, Masson Henri, Steck Henri (1987) : Coupes géologiques des Alpes occidentales suisses. Rapp. géol. Serv. hydrol. et géol. natl. 2, 12 pages