Aptian (~ 125 Ma)

Torna a cronostratigrafia

Rappresentazione e statuto

Index
apt
Colore CMYK
25 / 0 / 45 / 0
Colore RGB
R: 191 G: 228 B: 138
Rango
Piano cronostratigrafico
Uso
Unità in uso.
Status
termine formale valido

Nomenclatura

Deutsch
Aptien (CH ; DE/AT: Aptium)
Français
Aptien
Italiano
Aptiano
English
Aptian (~ 125 Ma)
Origine del nome

Named after the town of Apt (Vaucluse, France).

Varianti storiche

Aptien (d'Orbigny 1840, Sornay et al. 1957), 26e Etage = Aptien (Greppin 1866), Aptésien (Kilian 1910), Néocomien supérieur

Gerarchia e successione

Unità sovrastante
Limite inferiore

The base of the Aptian is determined by the geomagnetic reversal at the start of the M0r chronozone, which is biologically near the first appearance of the ammonite Paradeshayesites oglanlensis.

Età

Geomorfologia
  • Aptiano

Età alla base
  • Aptiano

Geografia

Regione-tipo
Vaucluse (France)
  • Clansayésien

    Name Origin

    Named after the village of Clansayes (Drôme, France).

     

    Rango
    cronostratigrafia
    Statuto
    termine locale (informale)
    In breve

     

    Local chronostratigraphic substage corresponding to the Late Aptian.

     

    Age
    Aptiano tardo
  • Gargasian

    Name Origin

    Named after the village of Gargas (Vaucluse, France).

     

    Rango
    Sotto-Piano cronostratigrafico
    Statuto
    termine locale (informale)
    In breve

     

    Local chronostratigraphic subdivision corresponding to the latest Early Aptian and to the Middle Aptian.

     

    Age
    Primo Aptiano
  • Bedoulian

    Name Origin

    Named after the village of La Bédoule (Bouches-du-Rhône, France), near Cassis.

     

    Rango
    cronostratigrafia
    Statuto
    termine locale (informale)
    Termine valido
    Aptian
    In breve

     

    Local chronostratigraphic subdivision designating the Early Aptian. The Bedoulian, based on pelagic deposits (Marno-calcaires de la Bedoule), is approximately equivalent to the Rhodanian, which is based on littoral deposits.

     

    Age
    Primo Aptiano
  • Selli level (OAE 1a)

    Name Origin

    Named after the Italian geologist Raimondo Selli (1916-1983).

    Rango
    OAE
    Statuto
    valido
    In breve

     

    Oceanic anoxic event at the base of the Aptian (around 120 Ma ago) with a major impact on the chemistry of the oceans worldwide.

     

    Age
    Primo Aptiano
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