Formal (Van Adrichem Boogaert & Kouwe 1993).
Sequence of mottled and variegated grey, cream, light-grey, purple-grey, and locally orange-brown claystones and siltstones, often highly sideritic, with occasional interbeds of thin, fine-grained sandstones.
Coastal-plain to flood-plain deposits with relatively little influence of fluvial channels. Fluctuating water-table, causing alternating periods of oxidisation and reduction. Marine influence, especially towards the base.
Definition of lower boundary
Conformably underlain by the interbedded sandstones, siltstones and claystones of the Santpoort Member.
Definition of upper boundary
The member is conformably overlain by the Bloemendaal Member, or it is unconformably overlain by younger sediments.
UK: Humber Group; GER: ?; BEL: -.
late Tithonian - Berriasian.
Origin of name
Named after the village of Driehuis, in the south of the Dutch province of Noord-Holland.
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]). Driehuis Mottled Claystone Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from https://www.dinoloket.nl/en/stratigraphic-nomenclature/driehuis-mottled-claystone-member.