Z1 Lower Claystone Member ZEZ1G


Premise Member defined by van Adrichem Boogaert & Kouwe (1994). NAM and RGD (1980) distinguished 1 m of Coppershale in a fringe facies at the base of the Zechstein in well Q11-01. This interval has now been incorporated in the Z1 Lower Claystone Member.
Type section Location map See figure (pdf)
  Well Q11-01 (pdf)
  Location N 52°25’08.0
E 04°22’33.0
  Depth 2847 to 2878 m
  Length 31 m along hole
Additional section Location map See figure (pdf)
  Well P09-01A (pdf)
  Location N 52°32’19.4
E 03°44’52.2
  Depth 4576 to 4620 m
  Length 44 m along hole
  Well Q16-02 (pdf)
  Location N 52°07’05.3
E 04°07’15.3
  Depth 3867 to 3871 m
  Length 4 m along hole
  Well Buurmalsen-1 (pdf)
  Location N 51°54’18.7
E 05°18’49.2
  Depth 2061 to 2066 m
  Length 5 m along hole
Definition The Z1 Lower Claystone Member shows an upwards increase in carbonate content, grading from claystone into marl. The lower boundary has been placed at the top of the Coppershale, the upper boundary at the base of the first prominent carbonate bed of the Z1 Fringe Carbonate Member. The unit is composed of a grey to brown claystone or marl, in places dolomitic or anhydritic.
References See References Permian

Van Adrichem Boogaert, H.A. & Kouwe, W.F.P., 1993-1997. [Stratigraphic unit]. In: Stratigraphic Nomenclature of the Netherlands.
Retrieved [Datum] from [url].