Gneiss della Legiuna

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Representation and status

Color RGB
R: 245 G: 160 B: 175
Rank
lithostratigraphic unit
Validity
Unit is in Use
Status
local name (informal)

Nomenclature

Deutsch
Legiuna-Gneis
Français
Gneiss de la Legiuna
Italiano
Gneiss della Legiuna
English
Legiuna Gneiss
Origin of the Name

Ponte Leggiuna = Legiuna = Lesgiüna (TI) , Val Blenio / Val Pontirone

Historical Variants

Leggiunagranit = Gneis von Ponte Leggiuna (de Quervain 1969), Gneiss della Legiuna = Legiuna-Gneis (Bl. Osogna)

Age

Age at top
  • Ordovician
Age at base
  • Ordovician
Dating Method

450 Ma (U-Pb Zirkon; Allègre et al. 1974)

Palaenography and tectonic

  • Pre-Variscan polycyclic basement of the Penninic
Tectonic unit (resp. main category)
Kind of protolith
  • plutonic
Metamorphism
metamorphic
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