Malmurainza-Formation

Representation and status

Color CMYK
(5%,0%,40%,18%)
Color RGB
R: 200 G: 210 B: 125
Rank
lithostratigraphic Formation
Validity
Unit is in Use
Status
informal term

Nomenclature

Deutsch
Malmurainza-Formation
Français
Formation du (Piz) Malmurainza
Italiano
Formazione del (Piz) Malmurainza
English
Malmurainza Formation
Origin of the Name

Piz Malmurainza (GR)

Historical Variants

Bündnerschiefer auct., Malmurainza-Formation (Bertle 2004)

Description

Thickness
Mehr als 100 m (Bertle 2004).

Age

Age at top
  • Late Cretaceous
Age at base
  • Late Cretaceous

Geography

Geographical extent
Unterengadiner Fenster.

References

Definition
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).

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