Formazione della Preja
Back to Monte Rosa nappeRepresentation and status
- Color CMYK
- (20%,10%,0%,2%)
- Color RGB
- R: 200 G: 225 B: 250
- Rank
- lithostratigraphic Formation
- Validity
- Unit is in Use
- Status
- informal term
Nomenclature
- Deutsch
- Preja-Formation
- Français
- Formation de la Preja
- Italiano
- Formazione della Preja
- English
- Preja Formation
- Origin of the Name
- Historical Variants
-
Quartzites, dolomies et métawildflysch de la zone de Furgg supérieure (Escher et al. 1987), Preja Formation = Furgg Mesozoic marble (Steck et al. 2015)
Hierarchy and sequence
Age
- Age at top
-
- Late Jurassic
- Age at base
-
- Triassic
References
- Definition
-
2015) :
Tectonics of the Monte Rosa and surrounding nappes (Switzerland and Italy): Tertiary phases of subduction, thrusting and folding in the Pennine Alps. Swiss J. Geosc. 108/1, 3-34
(
p.11: These meta-graywackes are overlain by 20 cm of Triassic quartzite and about 3 m of dolomite and cornieule, followed by 4 m of a graphitic sandy calcite marble, 6 m of a brown weathering siliceous marble and 15 m of a white calcite marble attributed respectively to the Lower, Middle and Upper Jurassic of the Preja sedimentary Formation.
-
«Weisse Marmore» der Preja-Formation
- Rank
- lithostratigraphic unit
- Status
- informal term
- In short
-
Reiner weisser Kalzit-Marmor (Malm) der Preja-Formation.
- Age
- Late Jurassic
-
«Braune Sandkalke» der Preja-Formation
- Rank
- lithostratigraphic unit
- Status
- informal term
- In short
-
Braune Sandkalke (Dogger) der Preja-Formation,
- Age
- Middle Jurassic
-
«Lias-Sandkalke» der Preja-Formation
- Rank
- lithostratigraphic unit
- Status
- informal term
- In short
-
Dunkle graphitführende Sandkalke und Glimmerquarzite (Lias) der Preja-Formation.
- Age
- Early Jurassic
-
Dolomitmarmor der Preja-Formation
- Rank
- lithostratigraphic unit
- Status
- informal term
- In short
-
Kieselige Kalzit-Dolomitmarmore der Preja-Formation, mit Tremolit-Quarz-Kalzit- oder Tremolit-Kalzit-Dolomit-Marmorlagen.
- Age
- Triassic
-
Quarzit der Preja-Formation
- Rank
- lithostratigraphic unit
- Status
- informal term
- In short
-
Dünner Quarzithorizont an der Basis der Preja-Formation (am Kontakt mit den permischen Grauwacken der Cavalli-Formation)..
- Age
- Triassic