«Unterer Öhrli-Kalk»
Back to Doldenhorn NappeRepresentation and status
- Index
- UÖK
- Color CMYK
- (32%,0%,15%,33%)
- Color RGB
- R: 115 G: 170 B: 145
- Rank
- lithostratigraphic Member (Subformation)
- Validity
- Unit is in Use
- Status
- incorrect name (though informally used)
Nomenclature
- Deutsch
- «Unterer Öhrli-Kalk»
- Français
- «Calcaire d'Öhrli inférieur»
- Italiano
- «Calcare dell'Öhrli inferiore»
- English
- «Lower Öhrli Limestone»
- Origin of the Name
-
Öhrli (AI), Alpstein
- Historical Variants
-
Lower Oerlikalk, Unterer Örhlikalk (Schindler 1959), Oehrlischichten = Oehrlikalk? (Spörli 1966), lower Oehrli Limestone (Föllmi et al. 2007)
Description
- Description
-
Rostbräunlich anwitternder, bröckeliger, sandiger Kalk im unteren Teil der Öhrli-Formation.
- Thickness
- Max. 50 m (Föllmi et al. 2007).
Components
Fossil Content
- corals
- echinoderms
- algae
- foraminifera
Hierarchy and sequence
- Units at roof
Age
- Age at top
-
- Late Berriasian
- Age at base
-
- Middle Berriasian
Geography
- Type area
- Alpstein (AI/AR/SG)
Palaenography and tectonic
-
- Neocomian
- Cretaceous of the Helvetics
- Paleogeography
-
Northern Tethyan Carbonate Platform
:
Plateforme de Bourgogne, ... = Northern Tethyan Carbonate Platform (NTCP) - Tectonic unit (resp. main category)
- Kind of protolith
-
- sedimentary
- Conditions of formation
-
prograding shallow-water platform carbonates
References
- Definition
-
2007) :
Unlocking paleo- environmental information from Early Cretaceous shelf sediments in the Helvetic Alps: stratigraphy is the key! Swiss J. Geosci. 100, 349-369
p.5: The lower Oehrli Limestone consists of calcareous pack- and grainstone including peloids, green algae (Dasycladaceae), benthic foraminifera, corals and echinoderms, and reaches a maximal thickness of approximately 50 m (Ischi 1978; Burger & Strasser 1981; Burger 1985, 1986; Mohr 1992a; Mohr & Funk 1995).
(
- Important Publications
-
1978) : Das Berriasien-Valanginien in der Wildhorn-Drusberg-Decke zwischen Thuner- und Vierwaldstättersee. Inauguraldiss. Univ. Bern, 86 Seiten(1992) : Der helvetische Schelf der Ostschweiz am Übergang vom späten Jura zur frühen Kreide. Diss. ETH Zürich Nr. 9805(