Middle Jurassic (174.1 +/-1.0 Ma)

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Représentation et statut

Couleur CMYK
50 / 0 / 5 / 0
Couleur RGB
R: 128 G: 207 B: 216
Rang
Époque chronostratigraphique
Usage
Ce terme est en usage.
Status
terme formel valide
Discussion du statut

Nomenclature

Deutsch
Mittlerer Jura
Français
Jurassique moyen
Italiano
Giurassico medio
English
Middle Jurassic (174.1 +/-1.0 Ma)
Variantes historiques

Mésojurassique (Lugeon 1910), Série médiojurassique (Revil), Dogger [sic]

Âge

Âge au sommet
  • Callovien
Âge à la base
  • Aalénien
  • Callovian (166.1 +/-1.2 Ma)

    Name Origin

    Named derived from the old spelling of Kellaways Bridge (UK), Wiltshire, 2 miles NE Chippenham.

    Rang
    Étage chronostratigraphique
    Statut
    terme formel valide
    En bref

    Last stage of the Middle Jurassic.

    Age
    Callovien
  • Bathonian (168.3 +/-1.3 Ma)

    Name Origin

    Named after the town of Bath (Somerset, UK), near Bristol. The city itself is largely built of Bath Stone, a bright white oolithic limestone that is quarried nearby.

    Rang
    Étage chronostratigraphique
    Statut
    terme formel valide
    En bref

    Third stage of the Middle Jurassic.

    Age
    Bathonien
  • Bajocian (170.3 +/-1.4 Ma)

    Name Origin

    Named after the town of Bayeux (Calvados, France) in Normandy.

    Rang
    Étage chronostratigraphique
    Statut
    terme formel valide
    Nomenclatorial Remarks
    <p>Latin: Bajocium</p>
    En bref

    Second stage of the Middle Jurassic.

    Age
    Bajocien
    • Gaetani Oceanic Anoxic Event

      Name Origin

      Named in recognition of Maurizio Gaetani's work on Jurassic sedimentary successions of the Lombardy Basin.

      Rang
      OAE
      Statut
      terme informel
      En bref

      Black shale interval locally developped at the transition betwenn the Rosso Ammonitico Lombardo and the Radiolarite Group.

      Age
      Bajocien précoce
  • Aalenian (174.1 +/-1.0 Ma)

    Name Origin

    Named after the town of Aalen (Germany), Baden-Württemberg

    Rang
    Étage chronostratigraphique
    Statut
    terme formel valide
    En bref

    First stage of the Middle Jurassic.

    Age
    Aalénien
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