«(Oberer) Öhrli-Mergel»

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Representation and status

Index
OÖM
Color CMYK
(44%,0%,9%,37%)
Color RGB
R: 90 G: 160 B: 145
Rank
lithostratigraphic Member (Subformation)
Validity
Unit is in Use
Status
incorrect name (though informally used)
Status discussion

Nomenclature

Deutsch
«(Oberer) Öhrli-Mergel»
Français
«Marne d'Öhrli (supérieure)»
Italiano
«Marna dell'Öhrli (superiore)»
English
«(Upper) Öhrli Marl»
Origin of the Name

Öhrli (AI), Alpstein

Historical Variants

«Valanginien schisteux» p.p., Obere Öhrlimergel (Schindler 1959), Valanginianmergel (Spörli 1966), Oehrli Marl (Föllmi et al. 2007)

Description

Thickness
30 - 40 m

Hierarchy and sequence

Superordinate unit
Units at roof

Age

Age at top
  • Late Berriasian
Age at base
  • Late Berriasian

Geography

Type area
Alpstein (AI/AR/SG)

Palaenography and tectonic

  • Neocomian
  • Cretaceous of the Helvetics
Paleogeography
North Tethyan Shelf :
marge continentale européenne
Tectonic unit (resp. main category)
Kind of protolith
  • sedimentary
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