Z2 Roof Anhydrite Member

Code
ZEZ2T
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1994).
Lithologische beschrijving

Thin and pure anhydrite unit.

Afzettingsmilieu

Sabkha anhydrite.

Definitie ondergrens

Rests on the Z2 Salt Member or locally other members of the Z2 (Stassfurt) Formation.

Definitie bovengrens

Underlying the Grey Salt Clay Member at the base of the Z3 (Leine) Formation.

Dikte indicatie
Generally less than 30 m, but up to 94 m in COV-53.
Geografische verbreiding
Regionale correlatie
UK: Deckanhydrit Formation; GER: Deckanhydrit; BEL: Z2 Roof Anhydrit Member.
Ouderdom
Wuchiapingian.
Holostratotype
Well:
Depth (thickness) AH:
1331 - 1335 m (4 m)
Parastratotype
Well:
Depth (thickness) AH:
2548 - 2553 m (5 m)
Oorsprong naam
None.
Vorige benaming(en)
None.
Gereviewed door (datum)
Mark Geluk (2017).
Referenties
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]). Z2 Roof Anhydrite Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from https://www.dinoloket.nl/en/stratigraphic-nomenclature/z2-roof-anhydrite-member.