Fuorcla-d’Alp-Formation

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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

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]).
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