Formation de Turckheim
Back to Ajoie gulfRepresentation and status
- Color CMYK
- (0%,10%,71%,6%)
- Color RGB
- R: 240 G: 215 B: 70
- Rank
- lithostratigraphic Formation
- Validity
- Unit is in Use
- Status
- valid formal name
Nomenclature
- Deutsch
- Turckheim-Formation
- Français
- Formation de Turckheim
- Italiano
- Formazione di Turckheim
- English
- Turckheim Formation
- Origin of the Name
-
Turckheim (France, Haut-Rhin), à l'ouest de Colmar
- Historical Variants
-
Turckheim Formation (Pirkenseer et al. 2018)
- Nomenclatorial Remarks
-
Küstenkonglomerat-Formation (LGRB 2011, DSK 2016), Steingang (DSK 2002, Grimm 2005, Grimm et al. 2011b)
Description
- Thickness
- Epaisseur affleurante de 5 à 60 m ; épaisseur cumulée totale de 200-300 m (Pirkenseer et al. 2018).
Age
- Age at top
-
- early Rupelian
- Age at base
-
- Priabonian
- Dating Method
-
Micromammifères de la zone MP21 (Aufranc et al. 2016, Pirkenseer et al. 2018, Mojon et al.2018)
Geography
- Geographical extent
- Partie méridionale du fossé du Haut-Rhin.
- Type area
- Oberrhein-Graben
Palaenography and tectonic
- Paleogeography
- Rhine Graben
- Tectonic unit (resp. main category)
- Kind of protolith
-
- sedimentary
References
- Definition
-
2018) :
A revised Palaeogene lithostratigraphic framework for the Northern Swiss Jura and the Southern Upper Rhine Graben and its relationship to the North Alpine Foreland Basin. Riv. Italiana Pal. Strat. 124/1, 163–246
(
p.179: The Turckheim Fm represents sediments related to moderate to high relief in the hinterland, resulting in grain sizes ranging from m-scale blocks (proximal) to arenites (distal) with occasional red to yellow clay and marl intercalations. The grain type ranges from unsorted irregular blocks to near-equally sized, well-rounded pebbles and sands. Pebbles and blocks may be encrusted by stromatolithic carbonates (Duringer 1988) or bound by biomineralisations (fig. 15). These conditions led to local deposits of lacustrine limestone nodules and “lenses” within the conglomerates (e.g. in the Ajoie; Schneider 1960). On the eastern and southern URG margin the conglomerates consist of middle and upper Jurassic components, whereas on the western URG shoulder either lower and middle Triassic or middle and upper Jurassic source rocks are dominant, partly including components of the Vosgian crystalline basement (Duringer 1988).