Fuorcla-d’Alp-Formation

Representation and status

Color CMYK

(0%,42%,50%,6%)

Color RGB

R: 240 G: 140 B: 120

Rank

lithostratigraphic Formation

Validity

Unit is in Use

Status

informal term

Nomenclature

Deutsch

Fuorcla-d’Alp-Formation

Français

Formation de la Fuorcla d'Alp

Italiano

Formazione della Fuorcla d'Alp

English

Fuorcla d'Alp Formation

Origin of the Name

Fuorcla d'Alp (GR)

Historical Variants

Bündnerschiefer auct., Fuorcla-d’Alp-Formation = Fuorcla d'Alp Formation (Bertle 2004), Schwarzer Phyllit, Tonschiefer (Gruber et al. 2010)

Description

Description

phyllitised black shales

Thickness

Ca. 10 m (Bertle 2004)

Hierarchy and sequence

Units at roof

• Malmurainza-Formation

Age

Age at top

• Early Cretaceous

Age at base

• Early Cretaceous

Geography

Geographical extent

Unterengadiner Fenster (Fuorcla d'Alp, Riefenjoch).

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: The “Gault Formation” is overlain by 10 m of phyllitised black shales (= Fuorcla d´Alp Formation, BERTLE [2004]) of assumed uppermost early Cretaceous age corresponding most probably to an Oceanic Anoxic Event (OAE 1c and 1d, JENKYNS [1980]).