Code
ZEZ1M
Status
Formal (Van Adrichem Boogaert & Kouwe 1994).
Lithologische beschrijving
Red, light-red to light-grey claystone and siltstone, interbedded with anhydrite. It may contain some sandstone beds, in particular in the Off Holland Low.
Afzettingsmilieu
Fine-grained mudflat - sabkha deposit.
Definitie ondergrens
Placed at the top of the Z1 Anhydrite or the Z1 Fringe Carbonate members.
Definitie bovengrens
Upper boundary is placed at the base of the claystones of the Red-brown Salt Clay Member.
Dikte indicatie
Up to 80 m.
Geografische verbreiding
Southern part of the country in the basin fringe area
Regionale correlatie
UK: ?; GER: ?; BEL: Z1 Middle Claystone Member.
Ouderdom
early Wuchiapingian.
Holostratotype
Well:
Depth (thickness) AH:
2828 - 2840 m (12 m)
Parastratotype
Well:
Depth (thickness) AH:
2020 - 2040 m (20 m)
Parastratotype
Well:
Depth (thickness) AH:
1743 - 1765 m (22 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]). Z1 Middle Claystone 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-middle-claystone-member.