Code
RNKPU
Status
Formal (NAM & RGD 1980).
Lithological description
Predominantly grey, silty claystones and marls with streaks of fine-grained sandstone.
Depositional setting
Lacustrine.
Definition of lower boundary
Not yet defined.
Definition of upper boundary
Not yet defined.
Thickness indication
Up to 194 m.
Geographical distribution
Regional correlation
UK: Triton Formation; GER: Arnstadt Formation (Steinmergelkeuper); BEL: Upper Keuper Claystone Member.
Age
late Norian - earliest Rhaetian.
Holostratotype
Well:
Depth (thickness) AH:
2808 - 2845 m (37 m)
Parastratotype
Well:
Depth (thickness) AH:
1623 - 1628 m (5 m)
Origin of name
None.
Previous name(s)
None.
Reviewed by (date)
Johan ten Veen (2017).
References
NAM & RGD 1980. Stratigraphic nomenclature of The Netherlands. Verhandelingen van het Koninklijk Nederlands Geologisch Mijnbouwkundig Genootschap 32, 77 p.
Cite as
TNO-GDN ([YEAR]). Upper Keuper Claystone Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/upper-keuper-claystone-member.