Code
ZEZ4R
Status
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.
Age
latest Wuchiapingian.
Holostratotype
Depth (thickness) AH:
1240 - 1245 m (5 m)
Hypostratotype
Depth (thickness) AH:
4090 - 4096 m (6 m)
Parastratotype
Depth (thickness) AH:
2247 - 2250 m (3 m)
Type section
Well:
Depth (thickness) AH:
1856 - 1860 m (4 m)
Origin of name
None.
Previous name(s)
None.
Reviewed by (date)
Mark Geluk (2017).
References
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 http://acc.dinoloket.nl/en/stratigraphic-nomenclature/red-salt-clay-member.