|Derivatio nominis||Named after the South West Patch, a shoal in the central North Sea.|
|Type section||Location map||See figure (pdf)|
|Depth||2717 to 3013 m|
|Length||296 m along hole|
|Definition||Grey and green-grey, silty claystones containing a few thin sandstone beds and some thin, brown, intercalated dolomite beds.|
|Upper Boundary||It is overlain conformably by the sandstone-dominated Buchan Formation.|
|Lower Boundary||The formation overlies the Caledonian basement nonconformably.|
|Distribution||Currently, only known from well A17-01 (see pdf) on the Elbow Spit High.|
|Age||Palynomorphs including genera such as Hystrichosporites, Retusotriletes, and Ancyrospora indicate a Givetian to Frasnian age.|
|Depositional Setting||The formation has been interpreted to be a floodplain and limnic deposit.|
|References||See References Devonian and Lower Carboniferous|
Van Adrichem Boogaert, H.A. & Kouwe, W.F.P., 1993-1997. [Stratigraphic unit]. In: Stratigraphic Nomenclature of the Netherlands.
Retrieved [Datum] from [url].