Code
ZEZ1G
Status
Formal (Van Adrichem Boogaert & Kouwe 1994).
Lithologische beschrijving
Grey to brown claystone or marl, in places dolomitic or anhydritic. Shows an upwards increase in carbonate content, grading from claystone into marl.
Afzettingsmilieu
Shallow marine, carbonate slope.
Definitie ondergrens
Placed at the top of the Fringe Coppershale Member.
Definitie bovengrens
Placed at the base of the first prominent carbonate bed of the Z1 Fringe Carbonate Member.
Dikte indicatie
Up to 81 m.
Geografische verbreiding
Regionale correlatie
UK: ?; GER: ?; BEL: Z1 Lower Claystone Member.
Ouderdom
early Wuchiapingian.
Holostratotype
Well:
Depth (thickness) AH:
2847 - 2878 m (31 m)
Parastratotype
Well:
Depth (thickness) AH:
4576 - 4620 m (44 m)
Parastratotype
Well:
Depth (thickness) AH:
3867 - 3871 m (4 m)
Parastratotype
Well:
Depth (thickness) AH:
2061 - 2066 m (5 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 Lower 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-lower-claystone-member.