«Alveolinenkalk»
Representation and status
- Color CMYK
- (0%,0%,0%,100%)
- Rank
- petrographic facies
- Validity
- Unit is in Use
- Status
- informal term
Nomenclature
- Deutsch
- «Alveolinenkalk»
- Français
- «Calcaire à Alvéolines»
- Italiano
- «Calcare a Alveolina»
- English
- «Alveolina Limestone»
- Historical Variants
-
Alveolinen-Kalk, Alveolina Limestone (Lihou 1995)
Hierarchy and sequence
- Superordinate unit
Age
- Age at top
-
- middle Eocene
- Age at base
-
- early Eocene
Geography
- Geographical extent
- Sibetsegg (Lihou 1995).
Palaenography and tectonic
- Paleogeography
- South Helvetic Domain
- Tectonic unit (resp. main category)
- Kind of protolith
-
- sedimentary
References
- Definition
-
(1995) :
A new look at the Blattengrat unit of eastern Switzerland: Early Tertiary foreland basin sediments from the south Helvetic realm Eclogae geol. Helv. 88/1, 91-114
p.105: Within the Kaufmanni Limestone of the Lower Sibetsegg profile (GR 733.7/197.7) (Wegmann 1961), there is a local concentration of alveolinids overlain by a sterile marl; this foraminifera is usually found in protected lagoonal environments (Ghose 1977; Racey 1988). The Alveolina Limestone represents a lateral facies change within the Kaufmanni Limestone, and may correlate with the uppermost glauconitic limestone within the Merenegg profile (Fig. 4) which also contains alveolinids and the encrusting foraminifera Planorbulina sp.. The overlying marl at Lower Sibetsegg may correlate with the Globigerina-xich horizon within the Chalberboden profile (Fig. 4), which also contains (reworked) alveolinids.