Nappe du Mont Mary

Representation and status

Index

MM

Color CMYK

N/A

Color RGB

R: 241 G: 239 B: 237

Rank

nappe

Validity

Unit is in Use

Status

valid

Nomenclature

Deutsch

Mont-Mary-Decke

Français

Nappe du Mont Mary

Italiano

Falda del Mont Mary

English

Mont Mary Nappe

Origin of the Name

Mont Mary (Italia)

Historical Variants

Gneissgruppe des Mont Mari (Gerlach 1869), synclinal du mont Mary (Argand 1906a), paquet de digitations inférieur du Mont Mary (Argand 1911b), Ricoprimento M.te Mary (Diehl et al. ----), Mont Mary nappe (Canepa et al. 1990), lembo Austroalpino settentrionale del M. Mary (Dal Piaz et al. 1992a), unit / Klippe, Mont Mary-Cervino nappe (Manzotti & Ballèvre 2017), Mont Mary Nappe (TK500 / Gouffon et al. 2024)

Hierarchy and sequence

Subordinate units

• klippe du Pillonet

Palaenography and tectonic

Tectonic unit (resp. main category)

• Mont-Mary

Kind of protolith

• tectonic

Metamorphic facies

• greenschist facies (epizone)
• blueschist facies

References

Definition

Gerlach Heinrich (1869) : Die penninischen Alpen, Beiträge zur Geologie der Schweiz. Neue Denkschriften allg. Ges. ges. Natf. 23

Definition

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

p.81: The Mont Mary Nappe also includes two crystalline basement units. The so-called Lower Unit mainly comprises pre-Alpine amphibolite-facies paragneisses and minor amphibolites and orthogneisses. The Upper Unit is similar to the Valpelline Unit of the Dent Blanche Nappe.

Important Publications

Canepa Maurizio, Castelletto Mauro, Cesare Bernardo, Martin Silvana, Zaggia Luca (1990) : The Austroalpine Mont Mary nappe (Italian Western Alps). Memorie di Scienze Geologiche 42, 1-17