Code
ZEZ2M
Status
Formal (Van Adrichem Boogaert & Kouwe 1994).
Lithologische beschrijving
Red-brown to grey dolomitic claystone, interbedded with thin anhydrite layers. A distinct anhydrite layer in the basal part can be distinguished separately as the Z2 Fringe Anhydrite Member. In the western offshore sandstone beds may be intercalated. Towards the fringe the amount of sandstone increases.
Afzettingsmilieu
Sabkha setting.
Definitie ondergrens
Along the basin fringe, in places with a prevailing argillaceous development, it may be impossible to discern the boundary with the underlying Red-Brown Salt Clay Member with certainty.
Definitie bovengrens
Not yet defined.
Dikte indicatie
Up to 108 m.
Geografische verbreiding
Regionale correlatie
UK: ?; GER: ?; BEL: Z2 Middle Claystone Member.
Ouderdom
Wuchiapingian.
Holostratotype
Well:
Depth (thickness) AH:
2737 - 2776 m (39 m)
Parastratotype
Well:
Depth (thickness) AH:
4437 - 4488 m (51 m)
Parastratotype
Well:
Depth (thickness) AH:
1992 - 2006 m (14 m)
Parastratotype
Well:
Depth (thickness) AH:
1725 - 1736 m (11 m)
Oorsprong naam
None.
Vorige benaming(en)
None.
Gereviewed door (datum)
Mark Geluk (2017).
Referenties
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 Middle Claystone Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/z2-middle-claystone-member.