Z2 Middle Claystone Member ZEZ2M

 

Premise Member defined by van Adrichem Boogaert & Kouwe (1994).
Type section Location map See figure (pdf)
  Well Q11-01 (pdf)
  Location N 52°25’08.0
E 04°22’33.0
  Depth 2737 to 2776 m
  Length 39 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 4437 to 4488 m
  Length 51 m along hole
  Well Buurmalsen-1 (pdf)
  Location N 51°54’18.7
E 05°18’49.2
  Depth 1992 to 2006 m
  Length 14 m along hole
  Well Everdingen-1 (pdf)
  Location N 51°57’34.6
E 05°07’35.6
  Depth 1725 to 1736 m
  Length 11 m along hole
Definition The Z2 Middle Claystone Member is a 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. 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. In that case this unit and the Z2 Middle Claystone Member may be lumped with the underlying Z1 Middle Claystone Member into an informal unit: the Zechstein Middle claystone (ZEFRM). As an example could serve well Nederweert-1 (Annex D-9), interval 2594 - 2634 m below rt.
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].