Unterer Teil des Grünten-Members

Rappresentazione e statuto

Rango

unità litostratigrafia

Uso

Unità non usata

Status

termine scorretto (informale)

Nomenclatura

Deutsch

Unterer Teil des Grünten-Members

Français

Partie inférieure du Membre du Grünten

English

Lower part of the Grünten Member

Varianti storiche

lower part of the Grünten Member (Föllmi et al. 2007)

Descrizione

Potenza

Max. ca. 15 m

Gerarchia e successione

Unità di rango superiore

• Grünten-Member

Unità sovrastante

• Banc du Col de la Plaine Morte

Unità sottostante

• Rohrbachstein-Bank

Referenze

Definizione

Föllmi Karl B., Bodin Stephane, Godet Alexis, Linder Pascal, van de Schootbrugge B. (2007) : Unlocking paleo- environmental information from Early Cretaceous shelf sediments in the Helvetic Alps: stratigraphy is the key! Swiss J. Geosci. 100, 349-369

p.12: The lower part of the Grünten Member overlying the Rohrbachstein Bed consists of a quartz- and glauconite-containing marl or marly carbonate, which is rich in echinodermal debris and reworked and partly micritized Schrattenkalk extraclasts. This unit is limited to the southern areas within
the Helvetic realm and reaches a maximum thickness of about 15 m. In the Rawil area, the lower part of the Grünten Member is covered by a thin, nodular glauconite- and phosphate-containing layer, in which sparse phosphate particles occur [Plaine Morte Bed].