Code
ZEZ1W
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1994).
Lithological description
Typically a massive anhydrite body. Dolomite stringers occur frequently within the unit and may contain some clay in the sub-basins.
Depositional setting
Marine evaporite.
Definition of lower boundary
Not yet determined.
Definition of upper boundary
Not yet determined.
Thickness indication
Locally up to 200 m.
Geographical distribution
Regional correlation
UK: Werra Anhydrit Formation; GER: Oberer & Unterer Werra Anhydrit; BEL: Z1 Anhydrite Member.
Age
Wuchiapingian.
Holostratotype
Well:
Depth (thickness) AH:
3083 - 3110 m (27 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 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-anhydrite-member.