|Premise||Amended after NAM and RGD (1980) . The status of the Delfland Group NAM and RGD (1980) was lowered to that of a formation by Herngreen and Wong (1989) . In this publication the status of the Delfland is modified to that of a subgroup of the Schieland Group, containing those deposits of Delfland facies found south of the Vlieland High. The formations that were contained in the former Delfland Group of NAM and RGD (1980) have been lowered to a member (Fourteens Claystone) or an informal status (upper/lower Delfland). Instead, new, basin-confined formations have been defined.|
|Derivatio nominis||Named after the polder authority of Delfland in the province of Zuid Holland.|
|Type section||Location map||See figure (pdf)|
|Depth||1052 to 1942 m|
|Length||890 m along hole|
|Additional section||Location map||See figure (pdf)|
|Depth||1559 to 2270 m|
|Length||711 m along hole|
|Subdivision||The Delfland Subgroup consists of the following formations:|
|Vlieland and Central Netherlands Basins:|
|West Netherlands Basin and Roer Valley Graben|
|References||See References Upper Jurassic/ Lower Cretaceous|
Van Adrichem Boogaert, H.A. & Kouwe, W.F.P., 1993-1997. [Stratigraphic unit]. In: Stratigraphic Nomenclature of the Netherlands.
Retrieved [Datum] from [url].