Val-Canaria-Lumbrein-Zone

Representation and status

Color CMYK

N/A

Color RGB

R: 241 G: 239 B: 237

Rank

tectonic zone

Validity

Unit is in Use

Status

valid

Nomenclature

Deutsch

Val-Canaria-Lumbrein-Zone

Français

Zone du Val Canaria-Lumbrein

Italiano

Zona della Val Canaria-Lumbrein

English

Val Canaria-Lumbrein Zone

Origin of the Name

Val Canaria (TI) und Lumbrein (GR)

Historical Variants

Südliche Sedimenthülle des Gotthardmassivs (Günthert 1958), Val Canaria-Lumbrein Zone (Berger et al. 2017)

Hierarchy and sequence

Subordinate units

• Retico-Schuppen

Age

Age at top

• Early Jurassic

Age at base

• Triassic

Geography

Geographical extent

Airolo (TI) bis Ilanz (GR), durch Passo del Lucomagno und Lumbrein.

References

Definition

Berger Alfons, Mercolli Ivan, Herwegh Marco, Gnos Edwin (2017) : Geological Map of the Aar Massif, Tavetsch and Gotthard Nappes. Geological Special Map 1:100'000, Explanatory Notes 129

p.73: In the region of Airolo, the scarcity of outcrops and the almost exclusive occurrence of meta-evaporites (Cornieule) does not allow a direct correlation between the metasedimentary sequences of the Termen-Nufenen Zone with those of the Val Piora. For this reason, the Termen-Nufenen Zone was terminated west of Airolo and, starting from there, a new unit comprising mainly Triassic meta-sedimentary rocks covering the crystalline rocks of the Gotthard Nappe to its eastern end was defined. This latter was called the Val Canaria-Lumbrein Zone. In the area east of the Val Piora, this unit has been often described as a relic of the autochthonous cover of the Gotthard Nappe (BERGER et al. 2005, VÖGELI et al. 2013