Séquanien moyen
Representation and status
- Index
- i6b
- Color CMYK
- N/A
- Color RGB
- R: 125 G: 125 B: 125
- Rank
- lithostratigraphic unit
- Validity
- Unit is not in Use
- Status
- obsolete term (disused)
Nomenclature
- Deutsch
- Mittleres Sequan
- Français
- Séquanien moyen
- Italiano
- Sequaniano medio
- English
- Middle Sequanian
- Historical Variants
- Mittel-Sequan, Mittelséquanien, Séquanien moyen (Bourquin 1946, Falconnier 1951)
Links
- Synonyms
Description
- Description
- calcaires spathiques, oolithiques et coralligènes
- Thickness
- 100-130 m (Falconnier 1951)
Hierarchy and sequence
- Superordinate unit
- Subordinate units
- Units at roof
Age
- Age at top
-
- late Oxfordian
- Age at base
-
- late Oxfordian
Palaenography and tectonic
- Tectonic unit (resp. main category)
-
-
Jura
:
Juragebirge
-
Jura
:
- Kind of protolith
-
- sedimentary
- Conditions of formation
- "séquanien"
- Metamorphism
- non metamorphic
-
«Humeralis-Schichten»
- Name Origin
-
Namengebendes Fossil: Brachiopodenart Zeilleria humeralis Roem. (je nach Autor, früher auch die Gattung Terebratula, Waldheimia oder Magellania zugeordnet).
- Rank
- lithostratigraphic unit
- Status
- obsolete term (disused)
- Valid term
- May-Member Bure-Member
- Nomenclatorial Remarks
- <p>Marnes supérieures à astartes (Desor & Gressly 1859), Marnes et calcaires astartien (Greppin 1870)</p>
- In short
-
Weiche, mergelige Schichten.
-
«Humeralis-Kalk»
- Name Origin
-
Namengebendes Fossil: Brachiopodenart Zeilleria humeralis Roem.
- Rank
- lithostratigraphic unit
- Status
- obsolete term (disused)
- Valid term
- Laufen-Member May-Member Olten-Member
- In short
-
Calcaires et marno-calcaires du sommet du Séquanien moyen.
- Age
- late Oxfordian
-
Humeralis-Mergel
- Name Origin
-
Namengebendes Fossil: Brachiopodenart Zeilleria humeralis Roem., heute Zeillerina astartina genannt.
- Rank
- lithostratigraphic unit
- Status
- obsolete term (disused)
- Valid term
- Bure-Member
- Nomenclatorial Remarks
- Marnes supérieures à astartes (Desor & Gressly 1859)
- In short
- Niveau marneux du Séquanien moyen de la région de Delémont, associé (superposé selon Ziegler 1956) à l'Oolithe nuciforme (Hauptmumienbank).
- Age
- late Oxfordian
-
«Mumienbank»
- Rank
- lithostratigraphic Bed
- Status
- obsolete term (disused)
- Valid term
- Hauptmumienbank-Member