Kaisten-Bank
Representation and status
- Color CMYK
- (0%,24%,63%,4%)
- Color RGB
- R: 245 G: 185 B: 90
- Rank
- lithostratigraphic Bed
- Validity
- Unit is in Use
- Status
- valid formal name
Nomenclature
- Deutsch
- Kaisten-Bank
- Français
- Banc de Kaisten
- Italiano
- Strato di Kaisten
- English
- Kaisten Bed
- Origin of the Name
- Historical Variants
-
Kaistener Schichten (Merki 1961, Müller et al. 1984), Kaisten Bed (Pietsch et al. 2016)
Description
- Description
-
Oolithischer, lokal fossilreicher Leithorizont mit vollständig dolomitisierten Ooiden.
- Thickness
- 0-6 m (Merki 1961).
Components
- gastropods
- bivalves
Age
- Age at top
-
- Ladinian
- Age at base
-
- Ladinian
Geography
- Geographical extent
- Aargauer Tafeljura zwischen Kaisten und der Aare, Wutachgebiet.
- Type area
- Aargauer Tafeljura.
- Type locality
-
-
Kaisten (AG)
Site particularities- Obergrenze
- Untergrenze
- typische Fazies
- (2646600 / 1265675)
- Merki 1961, Pietsch et al. Fig.13
-
Kaisten (AG)
- Type profile
-
-
Kaisten (AG)
Site particularities- Obergrenze
- Untergrenze
- typische Fazies
- (2646600 / 1265675)
- Merki 1961, Pietsch et al. 2016 Fig.13
-
Kaisten (AG)
Palaenography and tectonic
-
- Triassic 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
- Metamorphism
- non metamorphic
- Metamorphic facies
-
- secondary dolomitisation
References
- Definition
-
(2016) :
A new lithostratigraphic scheme for the Schinznach Formation (upper part of the Muschelkalk Group of northern Switzerland). Swiss J. Geosc. 109/2, 285-307
The Kaisten Bed represents the uppermost oolitic interval of the Schinznach Formation. It comprises the oolitic intervals described for the Wutach region (e.g. Paul 1971), the lower course of the Aare River (Nagra 1984; Matter et al. 1987; Brüderlin 1971), and the macrofossil-rich oolitic strata in the Kaisten area (‘‘Kaistener Schichten’’; Merki 1961). The ooids in this interval are completely dolomitised (Merki 1961; Rieser 1964) and often ooid shapes can only be recognised under the microscope.
While most occurrences of the uppermost oolitic interval were described either from boreholes (Riniken, Matter et al. 1987; Beznau, Nagra 1984) or from outcrops in
adjacent Germany (Brüderlin 1971; Paul 1971), the type locality of the oolitic ‘‘Kaistener Schichten’’ proposed by Merki (1961) in the Aargau Tabular Jura was chosen to be
the type region of the Kaisten Bed as well. Contrary to the ‘‘Kaistener Schichten’’ the Kaisten Bed only comprises the oolitic strata within the bivalve- and gastropod-rich strata
described by Herb (1957). For discussion of the lithostratigraphic definition of the oolitic intervals see below.