«Untere Perforatus-Schicht»
Back to Zentralschweizer KlippenRepresentation and status
- 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)
- Status discussion
Nomenclature
- Deutsch
- «Untere Perforatus-Schicht»
- Français
- «Couche inférieure à Nummulutes perforatus»
- Italiano
- «Strati inferiore di Nummulites perforatus»
- English
- «Lower Perforatus Bed»
- Origin of the Name
-
Foraminiferenart Nummulites perforatus Montfort 1808
- Historical Variants
-
Grünsandkalk mit N. perforata (Alb. Heim), Untere Perforatusschicht (Schuhmacher 1948), Untere Perforatus-Schicht (Bieri 1978, Menkveld-Gfeller 1993, 1995)
Description
- Description
-
Schlecht gebankter Quarzsandstein mit Einlagerungen von mikritischen, nummulitenreichen Lagen.
- Thickness
- 3-5 m
Components
Fossil Content
- nummulites
Hierarchy and sequence
- Superordinate unit
- Units at roof
Age
- Age at top
-
- middle Eocene
- Age at base
-
- middle Eocene
- Dating Method
-
Nummuliten des obersetn Mitteleozäns = Biarritzien (Steffen 1981)
Palaenography and tectonic
-
- Tertiary
- Tectonic unit (resp. main category)
-
-
Zentrales Helvetikum
:
u.a. Berner Oberland
-
Zentrales Helvetikum
:
- Kind of protolith
-
- sedimentary
- Metamorphism
- non metamorphic