Formation du Javrex
Back to Montsalvens sliceRepresentation and status
- Color CMYK
- (0%,37%,37%,4%)
- Color RGB
- R: 245 G: 155 B: 155
- Rank
- lithostratigraphic Formation
- Validity
- Unit is in Use
- Status
- informal term
Nomenclature
- Deutsch
- Javrex-Formation
- Français
- Formation du Javrex
- Italiano
- Formazione del Javrex
- English
- Javrex Formation
- Origin of the Name
- Historical Variants
-
Albien (Büchi 1923), Calcarénites et calcaires gréso-glauconieux du Javrex (Anatra et al. 1980), Formation gréso-glauconieus
Hierarchy and sequence
- Subordinate units
- Units at roof
Age
- Age at top
-
- Early Albian
- Age at base
-
- Late Barremian
- Dating Method
-
Foraminifères (remaniés?)
Geography
- Type area
- Massif du Montsalvens (FR)
Palaenography and tectonic
- Tectonic unit (resp. main category)
- Kind of protolith
-
- sedimentary
References
-
«Marnes noires pyriteuses»
- Rank
- lithostratigraphic unit
- Status
- incorrect name (though informally used)
- In short
-
Marnes noires resédimentées à bancs calcaires subordonnés (ainsi que quelques turbidites gréso-glauconieuses). Agrégats de pyrite à la base.
- Age
- Late Aptian
-
«Calcaires gréso-glauconieux»
- Rank
- lithostratigraphic unit
- Status
- incorrect name (though informally used)
- Valid term
- Javrex-Formation
- In short
-
Calcaires sombres à patine ocre, marnes silto-glauconieuses
- Age
- early Eocene