«Schistes néocomiens inférieurs»
Representation and status
- Index
- N2
- Color CMYK
- N/A
- Color RGB
- R: 125 G: 125 B: 125
- Rank
- lithostratigraphic unit
- Validity
- Unit is not in Use
- Status
- obsolete term (disused)
Nomenclature
- Deutsch
- «Untere Neokom-Schiefer»
- Français
- «Schistes néocomiens inférieurs»
- Historical Variants
-
Schistes néocomiens inférieurs (Renevier 1890, Heim 1917), Valangien vaseux (Lugeon 1910), schistes inférieurs = schistes berriasiens (Decrouez & Lombard 1980)
Links
Description
- Thickness
- Plus de 300 m, fortement replissé.
Hierarchy and sequence
- Units at roof
- Units at floor
Age
- Age at top
-
- Berriasian
- Age at base
-
- Tithonian
- Note about base
-
Portlandien: Zone à Hoplites callisto (Heim 1917)
- Dating Method
-
Biostratigraphie (ammonites): Perisphinctes richteri, P. lorioli, Hoplites callisto (Renevier 1890). [Portlandien supérieur - Valanginien inférieur (de Loys 1928) = Berriasien (Decrouez & Lombard 1980)]
Palaenography and tectonic
- Paleogeography
- North Helvetic Domain
- Tectonic unit (resp. main category)
- Kind of protolith
-
- sedimentary