Membre de Saulcy

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Representation and status

Index
i2v
Color CMYK
(0%,13%,31%,12%)
Color RGB
R: 225 G: 195 B: 155
Rank
lithostratigraphic Member (Subformation)
Validity
Unit is in Use
Status
valid formal name
Status discussion

Nomenclature

Deutsch
Saulcy-Member
Français
Membre de Saulcy
Italiano
Membro di Saulcy
English
Saulcy Member
Origin of the Name

Saulcy (JU)

Historical Variants

Marnes oder Couches à Macrocephalus (höherer Teil) Mathey (1883), Callovien-Tone (Stäuble 1959), Saulcy-Member (Bitterli-Dreher 2012 S.104, Hostettler 2012, Hostettler 2014)

Nomenclatorial Remarks

ex «Marnes calloviennes»

Links

Synonyms

Description

Description

Marnes argileuses grises, souvent pauvres en fossiles dans la partie inférieure. Deviennent plus silteuses et plus claires vers le haut. Riche microfaune présente localement (localité-type).

Geomorphology
Combe humide comprenand également le Mb. de Châtillon peu compétent.
Thickness
De 1,2 m au Col de la Croix (JU) à 16 m à Liesberg ; maximum environ 40 m. Généralement 5-10 m (Bitterli-Dreher 2012, Aufranc et al. 2016). 7 m à la localité-type (Bitterli-Dreher 2012).

Components

Fossil Content
  • ammonites
  • crinoids
  • foraminifera
  • brachiopods
  • echinoids
  • bivalves

Ammonites (Macrocephalites sp., Proplanulites sp. et Homoeoplanulites sp.), Crinoïdes, Echinides, Serpulides, Foraminifères, Bivalves (Pholadomya sp., Bositra buchi), térébratules.

Hierarchy and sequence

Superordinate unit
Upper boundary

Sommet défini par l'apparition de niveaux de concrétions calcaires.

Lower boundary

Limite marquée par le sommet du Banc d'Anwil ou - en son absence - par un hardground parfois peu visible.

Age

Age at top
  • early Callovian
Age at base
  • early Callovian
Note about base

Herveyi Z. (Königi Z. selon Dietl & Gygi 1998)

Dating Method

Microfaune (Fischer 1965b), ammonites (Dietl & Gygi 1998, Hostettler 2014).

Geography

Type profile
Reference profiles

Palaenography and tectonic

  • Dogger of the Jura Mountains
Tectonic unit (resp. main category)
Kind of protolith
  • sedimentary
Metamorphism
non metamorphic

References

Definition
Hostettler Bernhard (2012) : New lithostratigraphic units for the Callovian stage in the central NW Swiss Jura Mountain. Swiss Geoscience Meeting, Abstract Volume 10 (Bern), 169–170

Saulcy Member (previously Callovien Ton).

The typlocality is in the riverbed 250 m west of STEP (station d’épuration), Saulcy JU (577 650/238 800) [sic; inaccurate coordinates, see precise location in the lexicon].

Lithologically, it is a grey marl to marly clay with a poor macrofauna (e.g., Bositra buchi) but locally a rich microfauna (e.g., echinoderm ossicles, foraminifera). The thickness varies between 1.2 m (Col de la Croix, JU) and 16m.

Material and varia

Images
Saulcy_Pouillerel
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