|Premise||This Member is defined by van Adrichem Boogaert & Kouwe (1994)|
|Type section||Location map||See figure (pdf)|
|Depth||2783 to 2828 m|
|Length||45 m along hole|
|Additional section||Location map||See figure (pdf)|
|Depth||4500 to 4549 m|
|Length||49 m along hole|
|Depth||3851 to 3862 m|
|Length||11 m along hole|
|Definition||The Z1 Fringe Sandstone Member is a fine- to medium-grained, whitish to light-brown sandstone. The sandstone generally contains intercalated claystone beds.|
|Upper Boundary||The upper boundary has been placed at the base of the Red-brown Salt Clay Member. Along the basin fringe, in places where a sandy development prevails, it may be impossible to distinguish the Red-brown Salt Clay Member with certainty. In such cases this unit and the Z1 Sandstone Member may be lumped with the overlying Z2 Sandstone Member into an informal unit: the Zechstein Fringe sandstone (ZEFRS). An example of such a development is found in well Q16-02, interval 3836 - 3862 m below rt.|
|Lower Boundary||The lower boundary has been placed at the top of the Z1 Fringe Carbonate, or the Z1 Lower Claystone Member.|
|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].