«Oehningien» (du Jura)
Back to Formation du Crêt-du-LocleRepresentation and status
- Color CMYK
- cf. OSM-J
- Color RGB
- R: 125 G: 125 B: 125
- Rank
- lithostratigraphic Formation
- Validity
- Unit is in Use
- Status
- obsolete term (disused)
Nomenclature
- Deutsch
- «Oehningien» (des Juragebirges)
- Français
- «Oehningien» (du Jura)
- English
- «Oehningian» (of the Jura Mountains)
- Origin of the Name
-
Öhningen (S-Deutschland)
- Historical Variants
-
Molasse vindobonienne auct., Oeningien (Greppin 1859), 38e Etage = Oeningien (Greppin 1866), OEningien = calcaire d'eau douce supérieur (Rollier 1892a), Oeninger Süsswasser-Kalke (Baltzer 1906), Calcaires oeningiens du Locle, de Morteau, du vallon des Lavaux et de Goux-les-Uziers (Rollier 1911), Marno-calcaires lacustres oeningiens = Marnes et Marno-calcaires oeningiens = Oeningien du Haut-Jura (Rollier 1912a), Tortonien (Bourquin 1946), Oehningien (Kübler 1962), Formation de l'«Oeningien» (Becker 2003), Tortonien-Oehningien du Locle (Weidmann et al. 2008), «Oehningien» (Kälin & Kempf 2009), «Oeningian» lacustrine complex (Mojon et al. 2018)
Description
- Thickness
- Env. 200 m (Kälin & Kempf 2009).
Hierarchy and sequence
- Subordinate units
Age
- Age at top
-
- Serravallian
- Note about top
-
MN 7 + MN 8
- Age at base
-
- Langhian
- Note about base
-
MN 6
- Dating Method
-
Micromammifères (Kälin et al. 2001) ; MN5-6 - MN7+8 (Mojon et al. 2018)
References
- Definition
-
2009) :
High-resolution stratigraphy from the continental record of the Middle Miocene Northern Alpine Foreland Basin of Switzerland. N. Jb. Geol. Paläont. Abh. 254/1-2, 177-235
The overlaying «Oehningien», an approx. 200 m thick succession of mainly limnic and lacustrine sediments interbedded with numerous paleosols, has yielded many mammal sites (Kälin et al. 2001). A few meters above the base of the «Oehningien» one or two thin bentonite layers have been recorded (FAVRE 1911, Hofmann 1958a, Kälin et al. 2001). At the locality Combe Girard 41, one of these bentonites is associated with a small mammal fauna, indicating an upper MN 6 age (Kälin et al. 2001). The Le Locle Combe Girard bentonite is therefore younger than the Leimbach bentonite of Eastern Switzerland, which is situated in the middle part of MN 6.
(
-
«Oehningien supérieur»
- Rank
- lithostratigraphic unit
- Status
- incorrect name (though informally used)
- In short
-
Partie supérieure de l'«Oehningien du Locle», caractérisée par des niveaux crayeux alternant avec des niveaux organiques (charbon feuilleté, lignite, tourbe).
- Age
- Serravallian
-
«Oeningien moyen»
- Rank
- lithostratigraphic unit
- Status
- incorrect name (though informally used)
- In short
-
Partie médiane de l'«Oehningien du Locle», comprenant un complexe marneux et tourbeux, surmonté par un faciès crayeux fin.
- Age
- Serravallian
-
«Oeningien inférieur»
- Rank
- lithostratigraphic unit
- Status
- incorrect term (disused)
- Valid term
- Combe-Girard-Member
- In short
-
Partie inférieure de l'«Oehningien du Locle», formée de grands bancs de calcaire lacustre crayeux.
- Age
- Langhian