Code
ZEZ1A
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1994).
Lithologische beschrijving
Massive anhydrite, dolomite stringers occur frequently in the unit.
Afzettingsmilieu
Marine.
Definitie ondergrens
Not yet determined.
Definitie bovengrens
The unit is only recognised in the presence of an overlying Z1 Salt Member.
Dikte indicatie
Up to 210 m.
Geografische verbreiding
Regionale correlatie
UK: Lower Anhydrite Member; GER: Unterer Werra Andhydrit; BEL: Z1 Lower Anhydrite Member.
Ouderdom
Wuchiapingian.
Holostratotype
Depth (thickness) AH:
1725 - 1801 m (76 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]). Z1 Lower 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/z1-lower-anhydrite-member.