Schistes de l'Au d'Arbignon

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Representation and status

Color CMYK
(11%,0%,17%,29%)
Color RGB
R: 160 G: 180 B: 150
Rank
lithostratigraphic Bed
Validity
Unit is in Use
Status
informal term

Nomenclature

Deutsch
Au-d'Arbignon-Schiefer
Français
Schistes de l'Au d'Arbignon
Italiano
Scisti dell'Au d'Arbignon
English
Au d'Arbignon Schists
Origin of the Name

Au-d'Arbignon = Haut d'Arbignon (VS)

Historical Variants

Schistes ardoisiers auct., --- (Heer 1852, Renevier 1890), Anthracit und Dachschiefer bei Erbignon (Studer 1872), Schistes d'Arbignon (Renevier 1896), schistes anthraciteux de Mereune = schistes charbonneux de Forgnon = schistes à plantes de La Denieux (Sublet 1962), schistes anthraciteux fossilifères de l'Au d'Arbignon (Pilloud 1991), Stéphanien inférieur: Série lacustre détritique

Components

Fossil Content
  • plants : Plantae

Annularia stellata Schl., Neuropteris ovata Hoffm., Sphenophyllum oblongifolium Germ., Pecopteris polymorpha Bgt., Pecopteris lamuriana Heer, Odontopteris brardi Bgt., Taeniopteris cf. multinervis Weiss

Hierarchy and sequence

Superordinate unit

Age

Age at top
  • Late Carboniferous (= Pennsylvanian)
Age at base
  • Late Carboniferous (= Pennsylvanian)
Dating Method

(Westphalien D?) Stéphanien A (Jongmans 1960)

Geography

Geographical extent
Horizons charbonneux développés localement à L'Au d'Arbignon, Collonges, La Méreune.

Palaenography and tectonic

Tectonic unit (resp. main category)
Kind of protolith
  • sedimentary
Conditions of formation

Mud-dominated floodplain deposits.

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