Marbres de Roisan

Back to Dt Blanche nappe

Representation and status

Color CMYK
(0%,29%,58%,6%)
Color RGB
R: 240 G: 170 B: 100
Rank
lithostratigraphic Formation
Validity
Unit is in Use
Status
informal term

Nomenclature

Deutsch
Roisan-Marmor
Français
Marbres de Roisan
Italiano
Marmi di Roisan
English
Roisan Marbles
Origin of the Name

Roisan (Italia), N Aoste

Historical Variants

Marmi di Roisan = Roisan Marbles (Dal Piaz et al. 2015)

Components

Fossil Content
  • algae
  • foraminifera

Dasycladales (Griphorella curvata), Foraminifères benthiques (Aulotortus spp., Gandinella spp., Glomospirella spp.) (Dal Piaz et al. 2015)

Age

Age at top
  • Late Triassic
Age at base
  • Late Triassic

Geography

Geographical extent
Col de S. Barthélemy, M. Grand Pays, Bivacco Tzan, M. Blanc du Creton

Palaenography and tectonic

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

Environnement de plateforme carbonatée.

Back to top