Middle Jurassic (~ 175 Ma)

Torna a cronostratigrafia

Rappresentazione e statuto

Colore CMYK
50 / 0 / 5 / 0
Colore RGB
R: 128 G: 207 B: 216
Rango
Epoca cronostratigrafica
Uso
Unità in uso.
Status
termine formale valido
Discussione del statuto

Nomenclatura

Deutsch
Mittlerer Jura
Français
Jurassique moyen
Italiano
Giurassico medio
English
Middle Jurassic (~ 175 Ma)
Varianti storiche
Mésojurassique (Lugeon 1910), Série médiojurassique (Revil), Dogger [sic]

Età

Geomorfologia
  • Calloviano

Età alla base
  • Aaleniano

  • Callovian (~ 165 Ma)

    Name Origin

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

     

    Rango
    Piano cronostratigrafico
    Statuto
    termine formale valido
    In breve

     

    Last stage of the Middle Jurassic.

     

    Age
    Calloviano
  • Bathonian (~ 168 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.

     

    Rango
    Piano cronostratigrafico
    Statuto
    termine formale valido
    In breve

     

    Third stage of the Middle Jurassic.

     

    Age
    Bathoniano
  • Bajocian (~ 172 Ma)

    Name Origin

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

    Rango
    Piano cronostratigrafico
    Statuto
    termine formale valido
    Nomenclatorial Remarks
    <p>Latin: Bajocium</p>
    In breve

     

    Second stage of the Middle Jurassic.

     

    Age
    Bajociano
    • Gaetani Oceanic Anoxic Event

      Name Origin

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

      Rango
      OAE
      Statuto
      termine informale
      In breve

       

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

       

      Age
      primo Bajociano
  • Aalenian (~ 175 Ma)

    Name Origin

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

     

    Rango
    Piano cronostratigrafico
    Statuto
    termine formale valido
    In breve

     

    First stage of the Middle Jurassic.

     

    Age
    Aaleniano
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