Vlieland Claystone Formation

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

Dark brownish-grey to grey claystone. Mica and very fine lignitic matter are common. Generally, the claystones are only very slightly calcareous. In offshore areas, the upper part of the formation can locally be very calcareous. In the West Netherlands Basin and Broad Fourteens Basin the formation is very silty to sandy with many intercalated siltstone and very fine sandstone beds, especially along the basin margin.

Depositional setting

Shallow- to fairly deep-marine (middle- to outer-neritic) setting, where fines and minor carbonates settled. Thin sand layers were deposited mainly during storms and lowstand periods.

Definition of lower boundary

Where the Vlieland Sandstone Formation is present, the more or less conformable contact is generally quite sharp. Otherwise unconformably on a wide range of older formations.

Definition of upper boundary

Virtually conformable contact with the marly Holland Formation, or the clearly unconformably contact with the Chalk Group or Lower North Sea Group. The upper boundary, with the Holland Formation, is sharp. In the West Netherlands Basin the upper boundary with the De Lier Member is gradual.

Thickness indication
200-600 m.
Geographical distribution
Regional correlation
UK: Valhall Formation; GER: ~Minden-Braunschweig-Gruppe; BEL: -.
Valanginian - early Aptian.
Depth (thickness) AH:
1650 - 2200 m (550 m)
Depth (thickness) AH:
848 - 956 m (108 m)
Origin of name
Named after the Dutch Wadden island of Vlieland, where the reference well is located.
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]). Vlieland Claystone Formation. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from https://www.dinoloket.nl/en/stratigraphic-nomenclature/vlieland-claystone-formation.