Red Salt Clay Member

Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1994).
Lithological description

Red, generally anhydritic claystone. It may include some calcareous or dolomitic intercalations.

Depositional setting

Marine (?).

Definition of lower boundary

Not yet determined.

Definition of upper boundary

On wire-line logs the boundary of this unit with the overlying Z4 Pegmatite Anhydrite Member can be recognised by a characteristic, sharp increase of GR and decreasing acoustic velocity, which is very useful for regional correlation purposes.

Thickness indication
Up to 68 m.
Geographical distribution
Regional correlation
UK: Roter Salzton Formation; GER: Roter Salzton; BEL: Red Salt Clay Member.
latest Wuchiapingian.
Depth (thickness) AH:
1240 - 1245 m (5 m)
Depth (thickness) AH:
4090 - 4096 m (6 m)
Depth (thickness) AH:
2247 - 2250 m (3 m)
Type section
Depth (thickness) AH:
1856 - 1860 m (4 m)
Origin of name
Previous name(s)
Reviewed by (date)
Mark Geluk (2017).
NAM & RGD 1980. Stratigraphic nomenclature of The Netherlands. Verhandelingen van het Koninklijk Nederlands Geologisch Mijnbouwkundig Genootschap 32, 77 p.
Van Adrichem Boogaert, H.A. & Kouwe, W.F.P. 1994. Stratigraphic nomenclature of The Netherlands; revision and update by RGD and NOGEPA, Section D, Permian. Mededelingen Rijks Geologische Dienst, 50, 1-42.
Cite as
TNO-GDN ([YEAR]). Red Salt Clay Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from