«Calcaire à Cladocoropsis (mirabilis)»

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Representation and status

Index
-
CMYK Color
cf. Formation de Reuchenette
RGB color
R: 145 G: 205 B: 215
Rank
lithostratigraphic Bed
Validity
Unit is in Use
Status
incorrect name (though informally used)
SCS note
-
SCS date
-
Comment
-

Nomenclature

German
«Cladocoropsis-Kalk»
French
«Calcaire à Cladocoropsis (mirabilis)»
Italian
«Calcare a Cladocoropsis»
English
«Cladocoropsis Limestone»
Origin of the Name
Nom dérivé de l'éponge stromatopore fossile Cladocoropsis mirabilis.
Historical Variants
-
Nomenclatorial Remarks
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Synonyms

Synonyms
Non-synonyms
Possible confusion

Description

Description
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Geomorphology
-
Thickness
-

Components

Lithological content
  • limestone
Mineral content
-
Fossil content
  • demosponges

Hierarchy and succession

Superordinate unit
Subordinate units
Units at roof
    -
Units at floor
Lateral equivalents
Upper boundary
-
Lower boundary
-
Stratigraphic discussion
niveau repère à la limite entre les Formations de Reuchenette et du Twannbach

Age

Age at top
Late Kimmeridgian
Note about top
-
Age at base
Late Kimmeridgian
Note about base
-
Dating method
cf. Mouchet 1995, Colombié 2002

Geography

Geographical extent
-
Type area
-
Type locality
-
Type profile
-
Reference profiles
-
Point of interest
-

Paleogeography and tectonic

Paleogeography
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Kind of protolith
  • sedimentary
Conditions of formation
-
Sequence
-
Tectonic Unit (resp. main category)
Jura
  • Southern Germany
  • Black Forest
Metamorphism
non metamorphic
Metamorphic facies
-
Note on metamorphism
-

References

Definition
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Revision
Rameil N. (2005): Carbonate sedimentology, sequence stratigraphy, and cyclostratigraphy of the Tithonian in the Swiss and French Jura Mountains: a high-resolution record of changes in sea level and climate , GeoFocus 13, 246

The sponge Cladocoropsis mirabilis is an important regional marker for the Kimmeridgian/Tithonian boundary interval. MOUCHET (1995) described high abundances in the upper Reuchenette Formation of all measured sections and cores, just below the upper virgula Marls and the Grenznerineenbank. This is confirmed by own observations (see Fig. 7.1). However, it is not sure if the abundance of Cladocoropsis mirabilis in the upper Reuchenette Formation is really a biostratigraphic event or only a facies dependent effect.
Important publications
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Material and varia

Applications
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