Z2 Basal Anhydrite Member

Code
ZEZ2A
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1994).
Lithologische beschrijving

Generally developed as a massive body of relatively pure anhydrite.

Afzettingsmilieu

Sabkha anhydrite.

Definitie ondergrens

Boundary with the underlying Z2 Carbonate Member.

Definitie bovengrens

Boundary with the overlying Z2 Salt Member.

Dikte indicatie
Usually 5 to 10 m, in exceptional cases 15 m.
Geografische verbreiding
Regionale correlatie
UK: Basalanhydrit Formation; GER: Unterer Stassfurt Anhydrit, Basalanhydrit; BEL: Z2 Basal Anhydrite Member.
Ouderdom
Wuchiapingian.
Holostratotype
Well:
Depth (thickness) AH:
1358 - 1365 m (7 m)
Parastratotype
Well:
Depth (thickness) AH:
2818 - 2823 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 Basal 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-basal-anhydrite-member.