«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
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