Membre de la Griaz

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Representation and status

Color CMYK
cf. Fm. des Arandellys
Color RGB
R: 245 G: 175 B: 85
Rank
lithostratigraphic Member (Subformation)
Validity
Unit is in Use
Status
valid formal name

Nomenclature

Deutsch
Griaz-member
Français
Membre de la Griaz
Italiano
Membro della Griaz
English
Griaz Member
Origin of the Name

Ravin de la Griaz [= plâtre, gypse], situé 3 km au SSE des Houches (vallée de Chamonix, France)

Historical Variants

Gypslager am Eingange der Schlucht des Nant de Cria (Gerlach 1871), Membre de la Griaz = gypses de la Griaz (Epard 1989 p.312)

Description

Description

gypses à bancs dolomitiques

Thickness
100 m (épaisseur apparente)

Hierarchy and sequence

Superordinate unit
Subordinate units
Units at roof
Units at floor

Age

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

Geography

Geographical extent
Cuvette de Saint-Gervais-Le Fayet, en rive gauche de l'Arve, au Sud-Est de Domancy.
Type area
zone de Chamonix
Type profile

Palaenography and tectonic

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