Code
ZEZ3
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1994).
Lithological description
Claystone - carbonate - anhydrite - salt succession, showing gradual thinning of the carbonate towards the centre of the basin. Thick Potassium and Magnesium salts are typical for the central parts of the basin. In the basin-margin area, the formation comprises claystones and sandstones.
Depositional setting
Marine.
Definition of lower boundary
Placed at the base of the Grey Salt Clay Member.
Definition of upper boundary
Formed by the base of the Red Salt Clay Member. At the fringe of the basin the formation is covered by the Zechstein Upper Claystone Formation.
Thickness indication
Up to 350 m.
Geographical distribution
Regional correlation
UK: Z3 Group; GER: Leine Folge (Z3); BEL: Z3 (Leine) Formation.
Age
late Wuchiapingian.
Holostratotype
Depth (thickness) AH:
1245 - 1331 m (86 m)
Comments:
Sub-basin setting
Parastratotype
Depth (thickness) AH:
2250 - 2548 m (298 m)
Comments:
Main-basin setting
Hypostratotype
Well:
Depth (thickness) AH:
4418 - 4437 m (19 m)
Comments:
Carbonate/sandstone facies
Hypostratotype
Hypostratotype
Well:
Depth (thickness) AH:
1974 - 1992 m (18 m)
Comments:
Claystone/evaporite facies
Origin of name
Name derived from the German stratigraphic nomenclature, where it is applied to the third evaporite cycle of the Zechstein Group (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]). Z3 (Leine) Formation. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/z3-leine-formation.