Impressamergel-Formation
Back to Southern GermanyRepresentation and status
- Index
- joI
- Color CMYK
- (5%,0%,2%,20%)
- Color RGB
- R: 195 G: 205 B: 200
- Rank
- lithostratigraphic Formation
- Validity
- Unit is in Use
- Status
- valid formal name
- Status discussion
Nomenclature
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- Impressamergel-Formation
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- Impressamergel-Formation
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- Impressamergel-Formation
- English
- Impressamergel-Formation
- Origin of the Name
-
Namengebendes Fossil: Brachiopodenart Terebratula (Aulacothyris) impressa Bronn; siehe auch Lithostratigraphisches Lexikon Deutschland (LithoLex).
- Historical Variants
-
Oxford-Mergel, Cardioceratenschichten, marnes à Aulacothyris impressa = Impressa-Schichten (Theobald 1950), Impressamergel-Formation (STD 2002/2016, Bloos et al. 2005, LGRB 2016)
Description
- Thickness
- 50-110 m (LithoLex)
Hierarchy and sequence
- Units at roof
Age
- Age at top
-
- late Oxfordian
- Note about top
-
Bimammatum-Zone
- Age at base
-
- middle Oxfordian
- Note about base
-
Transversarium-Zone
Geography
- Geographical extent
- Schwäbische Alb (Baden-Württemberg, SW-Deutschland).
Palaenography and tectonic
-
- Malm of the Jura Mountains
- Paleogeography
- Argovian Basin , Swabian Basin
- Tectonic unit (resp. main category)
- Kind of protolith
-
- sedimentary