Malmurainza-Formation

Représentation et statut

Couleur CMYK

(5%,0%,40%,18%)

Couleur RGB

R: 200 G: 210 B: 125

Rang

Formation lithostratigraphique

Usage

Ce terme est en usage.

Status

terme informel

Nomenclature

Deutsch

Malmurainza-Formation

Français

Formation du (Piz) Malmurainza

Italiano

Formazione del (Piz) Malmurainza

English

Malmurainza Formation

Origine du nom

Piz Malmurainza (GR)

Variantes historiques

Bündnerschiefer auct., Malmurainza-Formation (Bertle 2004)

Description

Épaisseur

Mehr als 100 m (Bertle 2004).

Âge

Âge au sommet

• Crétacé Tardif

Âge à la base

• Crétacé Tardif

Géographie

Extension géographique

Unterengadiner Fenster.

Références

Définition

Bertle Rufus J. (2004) : The Sedimentary Record of North Penninic Schistes lustrés of the Lower Engadine Window and its Correlation to the Tauern Window (Eastern Alps). Jahrbuch der Geologischen Bundesanstalt 144/2, 165-171

p.167: They are in turn overlain by a sedimentary sequence of turbiditic character: the Malmurainza Formation. It consists of a rhythmic layering of dark shales/phyllites and sandstones with some few intercalated coarse grained breccias. The age of the Malmurainza Formation is late Cretaceous in general, an early Tertiary age cannot be excluded, as the tectonically highermost part of the Zone of Pfunds is latest Cretaceous taceous in age, indicated by Lepidorbitoides sp. and Globotruncana ex gr. arca (BERTLE, 1999).