Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1993).
Sandstone, light-grey, very fine- to fine- and medium- to coarse-grained, locally gravelly, lignitic, locally glauconitic or with sideritic concretions. Especially in the upper part of the member calcareous cemented beds are common; locally shells and shell fragments are present. Further into the basin the member becomes increasingly calcareous.
Shallow-marine depositional setting for the lower part of these deposits. The upper part was deposited as reworked and bioturbated shallow-marine transgressive sands.
Definition of lower boundary
With the Berkel Sand-Claystone Member, is gradational, but normally placed at the base of the first massive, clean and porous sand.
Definition of upper boundary
With the Vlieland Claystone Formation generally is sharp.
UK: Valhall Formation; GER: ~Minden-Braunschweig-Gruppe; BEL: -.
late Hauterivian - middle Barremian.
Origin of name
Named after the village of Berkel near Rotterdam.
NAM & RGD 1980. Stratigraphic nomenclature of The Netherlands. Verhandelingen van het Koninklijk Nederlands Geologisch Mijnbouwkundig Genootschap 32, 77 p.
Van Adrichem Boogaert, H.A. & Kouwe, W.F.P. 1993. Stratigraphic nomenclature of The Netherlands; revision and update by RGD and NOGEPA, Section G, Upper Jurassic and Lower Cretaceous. Mededelingen Rijks Geologische Dienst, 50, 1-80..
TNO-GDN ([YEAR]). Berkel Sandstone Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from https://www.dinoloket.nl/en/stratigraphic-nomenclature/berkel-sandstone-member.