Santpoort Member

Formal (Van Adrichem Boogaert & Kouwe 1993).
Lithological description

Sequence of white to light-grey, fine- to medium-grained sandstones alternating with siltstones and claystones, and traces of coaly matter.

Depositional setting

Lower-coastal-plain to fluvial-plain setting, with marine influences.

Definition of lower boundary

Conformably overlies claystones of the Fourteens Claystone Member.

Definition of upper boundary

Conformably overlain by the claystones of the Driehuis Mottled Claystone Member, or it is unconformably overlain by younger sediments.

Thickness indication
Up to 150 m.
Geographical distribution
Regional correlation
UK: Humber Group; GER: ?; BEL: -.
late Tithonian - early Berriasian.
Depth (thickness) AH:
2403 - 2571 m (168 m)
Origin of name
Named after the town of Santpoort, in the south of the Dutch province of Noord-Holland.
Previous name(s)
Reviewed by (date)
Sander Houben (2017).
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..
Cite as
TNO-GDN ([YEAR]). Santpoort Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from