Code
ZEZ2
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1994).
Lithological description
Carbonate - anhydrite - salt - anhydrite sequence. In the basin-margin setting the formation comprises claystones and sandstones.
Depositional setting
Marine.
Definition of lower boundary
Located at the top of the uppermost anhydrite of the Z1 Upper Anhydrite Member respectively. At the fringe of the basin, its lower boundary has been placed at the base of the Red-brown Salt Clay Member.
Definition of upper boundary
Below the Grey Salt Clay Member of the Z3 (Leine) Formation, and may be formed by the top of the Z2 Basal Anhydrite Member, the Z2 Salt Member, the Z2 Roof Anhydrite Member or one of the clastic Z2 fringe members.
Thickness indication
Up to 2785 m in K10-14.
Geographical distribution
Regional correlation
UK: Z2 Group; GER: Stassfurt Folge (Z2); BEL: Z2 (Stassfurt) Formation.
Age
Wuchiapingian.
Holostratotype
Depth (thickness) AH:
1331 - 1407 m (76 m)
Comments:
Sub-basin setting
Parastratotype
Depth (thickness) AH:
2548 - 2828 m (280 m)
Comments:
Main-basin setting
Hypostratotype
Well:
Depth (thickness) AH:
4437 - 4500 m (63 m)
Comments:
Carbonate/sandstone facies
Hypostratotype
Hypostratotype
Well:
Depth (thickness) AH:
1992 - 2020 m (28 m)
Comments:
Claystone/evaporite facies
Origin of name
Derived from the German stratigraphic nomenclature, where it is applied to the second evaporite cycle (Richter-Bernburg 1955).
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.
Richter-Bernburg, G. 1955. Stratigraphische Gliederung des deutschen Zechsteins - Z. Dt. Geol. Ges., 105, 593-645.
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 (Stassfurt) Formation. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from https://www.dinoloket.nl/en/stratigraphic-nomenclature/z2-stassfurt-formation.