Tuors-Member
Back to Schiahorn nappeRepresentation and status
- Color CMYK
- (0%,23%,86%,31%)
- Color RGB
- R: 175 G: 135 B: 25
- Rank
- lithostratigraphic Member (Subformation)
- Validity
- Unit is in Use
- Status
- informal term
Nomenclature
- Deutsch
- Tuors-Member
- Français
- Membre du Val Tuors
- English
- Tuors Member
- Origin of the Name
-
Val Tuors (GR), 4 km ENE Bergün
- Historical Variants
-
Tuors Member (Furrer et al. 1985)
- Nomenclatorial Remarks
-
Ava da Tuors
Description
- Description
-
Feinkörnige, gut gebankte Sandsteine.
- Thickness
- 200 m (Furrer et al. 1985)
Age
- Age at top
-
- Early Triassic
- Age at base
-
- Early Triassic
Geography
- Geographical extent
- Albula-, Ducan- und Landwassergebiet.
- Type area
- Albulagebiet (GR) (Silvretta-Decke)
Palaenography and tectonic
- Tectonic unit (resp. main category)
- Kind of protolith
-
- sedimentary
- Conditions of formation
-
Fining-upward: peneplain development with braided river and alluvial plain sediments.
References
- Definition
-
1985) :
Field workshop on Triassic and Jurassic sediments in the Eastern Alps of Switzerland. Mitt. geol. Inst. ETH und Univ. Zürich (N.F.) 248, 81 S.
p.17: In the Silvretta nappe the heterogeneous coarse Chazforà conglomerates occur only in a few layers of the basal sequence, concentrated in the Albula valley region. The upper part contains coarse layers of angular vein quartz conglomerates interfingering with a fine grained sandstone complex (Tuors Mb., ca. 200 m).
(