Formation de Pulversheim

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Representation and status

Color CMYK
(0%,32%,54%,2%)
Color RGB
R: 250 G: 170 B: 115
Rank
lithostratigraphic Formation
Validity
Unit is in Use
Status
valid formal name

Nomenclature

Deutsch
Pulversheim-Formation
Français
Formation de Pulversheim
Italiano
Formazione di Pulversheim
English
Pulversheim Formation
Origin of the Name

Pulversheim (France, Haut-Rhin), au nord de Mulhouse

Historical Variants

Septarienton auct., Melettaschichten auct., Pulversheim Formation (Pirkenseer et al. 2018)

Nomenclatorial Remarks

Correspond aux «Melettaschichten» auct. et au «Septarienton» (s.s.) auct. du fossé du Haut Rhin.

Description

Description

Grauer bis blauer massiver Mergel, laminierter Mergel mit feinen siltigen oder sandig-glimmerigen Einlagerungen.

Thickness
2-4 m dans le bassin de Delémont, 257 m à la localité-type, max. 400 m (Pirkenseer et al. 2018).

Components

Fossil Content
  • fish
  • fish scales
  • plants : Plantae

Age

Age at top
  • late Rupelian

Age at base
  • late Rupelian

Dating Method

Daté par encadrement (Pirkenseer et al. 2018).

Geography

Geographical extent
Oberrhein-Graben, Ajoie et bassin de Delémont. Unité présente sous forme condensée dans le bassin de Laufon.
Type area
Oberrhein-Graben

Palaenography and tectonic

Paleogeography
Rhine Graben
Tectonic unit (resp. main category)
Kind of protolith
  • sedimentary

References

Definition
Pirkenseer Claudius, Rauber Gaëtan, Roussé Stéphane (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.203: The Pulversheim Fm consists mainly of grey to blue massive marls, marls laminated with thin layers of silt or fine sand and marls with intercalated centimetric micaceous fine sand layers and lentils. Fine sands and silts feature planar or rippled bedding (Fig. 25). Massive or rippled fine to medium sand bancs containing plant debris or basal mud intraclasts are occasionally intercalated (Fig. 26). At the base of the Pulversheim Fm millimetric layers of the underlying Hochberg Fm facies may be present. Macrofossils are rare.

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