Z3 Main Anhydrite Member

Code
ZEZ3A
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1994).
Lithological description

The Z3 Main Anhydrite Member is generally developed as a relatively pure anhydrite body, but it can contain a large number of dolomitic or claystone intercalations.

Depositional setting

Playa - sabkha (?).

Definition of lower boundary

Boundary with the underlying Grey Salt Clay Member.

Definition of upper boundary

Boundary with the overlying Z3 Salt or Red Salt Clay members.

Thickness indication
Varies from several m to locally over 100 m.
Geographical distribution
Regional correlation
UK: Hauptanhydrit Formation; GER: Leine Anhydrit & Hauptanhydrit; BEL: Z3 Main Anhydrite Member.
Age
late Wuchiapingian.
Holostratotype
Well:
Depth (thickness) AH:
1281 - 1283 m (2 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]). Z3 Main 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/z3-main-anhydrite-member.