«Calcaires gris et blancs inférieurs»
Representation and status
- Color CMYK
- N/A
- Color RGB
- R: 125 G: 125 B: 125
- Rank
- Beds (Submember)
- Validity
- Unit is not in Use
- Status
- junior synonym (disused)
Nomenclature
- Deutsch
- «Unterer grauer und weisser Kalk»
- Français
- «Calcaires gris et blancs inférieurs»
- English
- «Lower Grey and White Limestones»
- Historical Variants
-
Lower Grey and White Limestones (Jank et al. 2006c)
Description
- Thickness
- 11 m (Jank et al. 2006c)
Hierarchy and sequence
- Units at roof
Palaenography and tectonic
-
- Malm of the Jura Mountains
- Tectonic unit (resp. main category)
-
-
Jura
:
Juragebirge
-
Jura
:
- Kind of protolith
-
- sedimentary
References
- Definition
-
(2006) :
A calibrated composite section for the Late Jurassic Reuchenette Formation in northwestern Switzerland (?Oxfordian, Kimmeridgian sensu gallico, Ajoie-Region) Eclogae geol. Helv. 99, 175-191
Lower Grey and White Limestones (≈11 m) (Plate 1, c):
This interval is composed of dm-to m-thick layers of Grey and white, micritic and calcarenitic limestones with blocky fractures. Thalassinoides burrows are rare. Occasionally, the top is composed of stromatolitic limestones. The interval is capped by a regional hardground, which [is] bored and biogenically encrusted by oysters.