Code
ZEZ1T
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1994).
Lithological description
Anhydrite forms the dominant lithology, with variable amounts of dolomite stringers and clay.
Depositional setting
Playa - sabkha.
Definition of lower boundary
Not yet determined.
Definition of upper boundary
Not yet determined.
Thickness indication
Up to 259 m.
Geographical distribution
Regional correlation
UK: Upper Anhydrite Member; GER: Oberer Werra Anhydrit; BEL: Z1 Upper Anhydrite Member.
Age
early Wuchiapingian.
Holostratotype
Depth (thickness) AH:
1407 - 1435 m (28 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]). Z1 Upper Anhydrite Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/z1-upper-anhydrite-member.