Couches à ciment de la Porte de France

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Representation and status

Color CMYK
(0%,0%,0%,100%)
Rank
lithostratigraphic unit
Validity
Unit is in Use
Status
informal term

Nomenclature

Deutsch
Zementsteinschichten der Porte-de-France
Français
Couches à ciment de la Porte de France
Italiano
Strati della Porte de France
English
Porte de France Beds
Origin of the Name

Porte de France à Grenoble (FR)

Historical Variants

Calcaire de la porte de France (Gueymard 1830), Valanginien inférieur = Berriasien = couches à ciment de la Porte de France (Gignoux & Moret 1944), calcaires argileux gris du Berriasien (geol-alp), calcaires de la Porte de France

Description

Thickness
30-40 m (Gignoux & Moret 1944)

Components

Fossil Content
  • ammonites
  • calpionellids

Hierarchy and sequence

Units at roof

Age

Age at top
  • Berriasian
Age at base
  • Berriasian

Palaenography and tectonic

Kind of protolith
  • sedimentary
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