«Unterer Öhrli-Kalk»

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Representation 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), 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

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