«Mittlerer Komplex» (des helvetischen Aalénien)
Representation and status
- Rank
- lithostratigraphic unit
- Validity
- Unit is not in Use
- Status
- informal term
Nomenclature
- Deutsch
- «Mittlerer Komplex» (des helvetischen Aalénien)
- Historical Variants
-
Mittlerer Komplex = mittleres Aalénien = Opalinustone = Opalinusschiefer (Hess 1940), Bommerstein-Serie s.l. (Spörli 1966)
Description
- Thickness
- 30-50 m (Hess 1940)
Geography
- Geographical extent
- Urirotstock, Engelberg.
Palaenography and tectonic
-
- Dogger of the Helvetics
- Tectonic unit (resp. main category)
- Kind of protolith
-
- sedimentary
- Metamorphism
- non metamorphic