Törbel-Gneis

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Representation and status

Index
GO-T
Color RGB
R: 175 G: 175 B: 150
Rank
lithostratigraphic Formation
Validity
Unit is in Use
Status
informal term
Status discussion

Nomenclature

Deutsch
Törbel-Gneis
Français
Gneiss de Törbel
Italiano
Gneiss di Törbel
English
Törbel Gneiss
Origin of the Name

Törbel (VS)

Historical Variants

Gneiss de Törbel (Thélin 1987, Sartori et al. 2006), Törbel Formation (Genier et al. 2008), Törbel Gneiss (Galster et al. 2010)

Hierarchy and sequence

Units at roof

Age

Age at top
  • Late Paleozoic
Age at base
  • Middle Paleozoic
Dating Method

Carboniferous? (Genier et al. 2008)

Geography

Type area
Umgebung von Embd (VS)
Type locality
  • Törbel (VS)
    Site particularities
    • typische Fazies
    Site accessibility
    • Strassenanschnitt / Bahnanschnitt
    Coordinates
    • (2631800 / 1120800)
    Note
    • Genier et al. 2008

Palaenography and tectonic

Tectonic unit (resp. main category)
Kind of protolith
  • sedimentary
Metamorphism
polycyclic

References

Definition
Thélin Philippe (1987) : Nature originelles des gneiss oeillés de Randa (Nappe de Siviez-Mischabel, Valais). Mémoires de la Société Vaudoise des Sciences Naturelles 18/1, 75 pages
Definition
Genier Florian, Epard Jean-Luc, Bussy François, Magna Tomas (2008) : Lithostratigraphy and U-Pb zircon dating in the overturned limb of the Siviez-Mischabel nappe: a new key for Middle Penninic nappe geometry. Swiss J. Geosci. 101/2, 431–452

Fine-grained, greyish quartzite and graywacke with kerogen-rich horizons (Törbel Formation, presumed Carboniferous).
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