Rothenfluh-Member
Back to «Humphriesi-Schichten»Representation and status
- Color CMYK
- siehe Passwang-Fm.
- Color RGB
- R: 170 G: 120 B: 70
- Rank
- lithostratigraphic Member (Subformation)
- Validity
- Unit is in Use
- Status
- valid formal name
- Scs Note
-
Beschluss
- Scs Date
- 01.01.2004
- Status discussion
Nomenclature
- Deutsch
- Rothenfluh-Member
- Français
- Membre de la Rothenfluh
- Italiano
- Membro della Rothenfluh
- English
- Rothenfluh Member
- Origin of the Name
-
Roti Flue, nördlich von Rothenfluh (BL)
- Historical Variants
-
Rothenfluh-Schichten (Lusser 1980), Rothefluh-Member, Rothenfluh Beds = Rothenfluh Schichten = Couches de Rothenfluh (Gonzalez & Wetzel 1996)
- Nomenclatorial Remarks
-
«Blaue Kalke» (sensu Quenstedt 1856/57), «Blagdeni-Schichten» auct. (Moesch 1867, Mühlberg 1900, Strübin 1901, Schmassmann 1945)
Description
- Description
-
An der Basis des Members lokal mit Crinoiden-Brekzie ("Pentacrinitenbreccie" des Staffeleggebietes ; Mühlberg 1900).
- Thickness
- Ca. 25 m im Westen, 10 m im Osten (Gonzalez & Wetzel 1996).
Components
- crinoids
Hierarchy and sequence
- Superordinate unit
- Units at roof
- Units at floor
- Upper boundary
-
Im Übergang zum Hauptrogenstein (Untere Acuminata-Schichten im Osten, Grenchenberg-Member im Westen) nimmt der Ooidgehalt der Kalke zu und die Mergellagen setzen aus.
- Lower boundary
-
Hartgrund im Dach der Humphriesi-Schichten.
- Stratigraphic discussion
-
Lokal mit Korallen (horizon à coraux supérieur de Cornol).
Age
- Age at top
-
- middle Bajocian
- Age at base
-
- middle Bajocian
- Dating Method
-
Biostratigraphie: Ammoniten
Geography
- Geographical extent
- Delsberg – Ostrand der Burgunder Plattform (Linie Gansingen (AG) – Schinznach (AG)).
- Type locality
-
-
Rothenfluher-Fluh, NNW Rothenfluh (BL)
Site particularities- typische Fazies
- Grat
- (2635800 / 1257500)
- Neu bei Gonzalez 1993 definiert.
-
Rothenfluher-Fluh, NNW Rothenfluh (BL)
Palaenography and tectonic
-
- Dogger of the Jura Mountains
- Paleogeography
-
Northern Tethyan Carbonate Platform
:
Plateforme de Bourgogne, ... = Northern Tethyan Carbonate Platform (NTCP) - Tectonic unit (resp. main category)
-
-
Jura
:
Juragebirge
-
Jura
:
- Kind of protolith
-
- sedimentary
- Conditions of formation
-
Gegen Osten zunehmend distaleres, epikontinentales Meer (Gonzalez 1993).
- Metamorphism
- non metamorphic
References
- Definition
- (1980) : Sedimentologie und Paläogeographie des unteren Doggers im zentralen und nördlichen Jura. Diss. Univ. Basel
- Definition
-
(1996) :
Stratigraphy and paleogeography of the Hauptrogenstein and Klingnau Formations (middle Bajocian to late Bathonian), northern Switzerland Eclogae geol. Helv. 89/2, 695-720
p.707: The Rothenfluh Beds occur throughout the Jura (synonyms: "Blagdeni Schichten", "Blaue Kalke" sensu Quenstedt 1856/57). They consist of marly, bioclastic mud- and wackestones interbedded with fine-grained, often quartz-bearing (up to 25%). nodular limestones. The unit is approximately 25 m thick in the western and 10 m in the eastern Jura.
The Rothenfluh Beds can be considered a member of the Hauptrogenstein Formation, if the Hauptrogenstein Formation is defined in a genetic sense as an alloformation. However, in a strictly lithostratigraphic sense the Rothenfluh Beds should not be included in the Hauptrogenstein Formation.