Métadiorite de Cogne

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Representation and status

Color CMYK
(0%,0%,0%,100%)
Color RGB
R: 245 G: 160 B: 175
Rank
lithostratigraphic unit
Validity
Unit is in Use
Status
informal term

Nomenclature

Deutsch
Cogne-Metadiorit
Français
Métadiorite de Cogne
Italiano
Metadiorite di Cogne
English
Cogne Metadiorite
Origin of the Name

Cogne (Italia)

Historical Variants

Cogne diorite = Cogne-Valsavarenche Pluton (Fenoglio & Rigault 1959, Amstutz 1962, Elter 1987, Desmons & Ploquin 1989, Bonin et al. 1993, Cigolini 1995, Malusà et al. 2005), métadiorite de Cogne (Bertrand et al. 2000b)

Age

Age at top
  • Tournaisian
Age at base
  • Famennian
Dating Method

356 +/-3 Ma (Bertrand et al. 2000b)

Geography

Geographical extent
Vallée d'Aoste.

Palaenography and tectonic

Tectonic unit (resp. main category)
Kind of protolith
  • plutonic

References

Definition
Bertand J.M., Pidgeon R.T., Leterrier J., Guillot F., Gasquet D., Gattiglio M. (2000) : SHRIMP and IDTIMS U-Pb zircon ages of the pre-Alpine basement in the Internal Western Alps (Savoy and Piémont). Schweiz. Min. Petr. Mitt. 80/3, 225-248
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