Code
KNNSG
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1993).
Lithological description
Coarse-grained to conglomeratic sandstones with pebbles of quartz, sandstone and limestone. It frequently contains clay flakes, clay-ironstones and some coals embedded in an argillaceous, very glauconitic sandstone. Medium-grained sandstones, often with a high content of calcareous cement, occur as well, and grade locally into calcareous sandstones. In some localities a high content of sponge spicules is characteristic.
Depositional setting
Inner- to middle-neritic, locally coastal, setting, in prograding offshore-shoals and coastal-barrier systems.
Definition of lower boundary
Conformably covers the Westerbork Member.
Definition of upper boundary
(mildly un-)Conformably overlain by the main Vlieland Claystone member. Can also be unconformably overlain by the Holland Formation.
Thickness indication
50 - 100 m.
Geographical distribution
Regional correlation
UK: Valhall Formation; GER: Gildehaus-Formation; BEL: -.
Age
late Hauterivian.
Holostratotype
Well:
Depth (thickness) AH:
1084 - 1091 m (7 m)
Hypostratotype
Depth (thickness) AH:
1411.5 - 1471.5 m (60 m)
Origin of name
Named after the village of Gildehaus in Germany, in the area of Niedersachsen.
Previous name(s)
None.
Reviewed by (date)
Sander Houben (2017).
References
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..
Cite as
TNO-GDN ([YEAR]). Gildehaus Sandstone Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/gildehaus-sandstone-member.