Vlieland Sandstone Formation KNNS


Premise Formation defined by van Adrichem Boogaert & Kouwe (1993). The status of the former Vlieland Sandstone Member of the Vlieland Formation has been raised to a formation level (Vlieland Sandstone Formation). The status of the former Vlieland Formation has been raised to that of and informal subgroup of the Rijnland Group.
  It is realised that maintaining the name ’Vlieland’ for both the Vlieland Sandstone Formation and the Vlieland Claystone Formation is against the rules of the International Stratigraphic Guide Hedberg (1976) , but the current, well-established nature of both terms has dictated this solution. A consistent usage of the lithological affix and the appropriate codes will effectively prevent confusion. The occurrence of Vlieland Sandstone Formation in the type area is dealt with in Cottençon et al (1975) , Perrot and van der Poel (1987) , RGD (1991) , RGD (in prep.) and Herngreen, Smit and Wong (1991) . t Hart (1969) and Kemper (1973a) describe its development in the western Lower Saxony Basin. The Broad Fourteens Basin occurrences are treated in Roelofsen and de Boer (1991) and de Jong and Laker (1992), while Bodenhausen and Ott (1981) deal with the West Netherlands Basin development.
Derivatio nominis Named after the Dutch Wadden island of Vlieland.
Type section Location map See figure (pdf)
  Well Vlieland Oost-1 (pdf)
  Location N 53°17’22.2
E 05°04’17.6
  Depth 2200 to 2246 m
  Length 46 m along hole
  Reference NAM and RGD (1980)
Definition Most frequently consists of subangular to well-rounded, fine- to medium-grained argillaceous to clean, more or less glauconitic sandstones, locally grading into conglomeratic sandstones. Bioturbation and rootleting are common, and can obliterate existing (cross-)stratification. Mica, shell fragments and lignite particles are wide- spread. Internal stacked coarsening-upward sequences are common Cottençon et al (1975) . Fossiliferous claystone intercalations are relatively thin in most sandstone members, but are more significant in the Sand-Claystone members.
Upper Boundary The top generally consists of the conformable contact with the Vlieland Claystone Formation, but the De Lier Member in places is slightly unconformably overlain by the Holland Formation
Lower Boundary The Vlieland Sandstone Formation conformably or mildly unconformably overlies sediments of the Schieland Group or the Scruff Group. The lower boundary of the formation generally is sharp. The base of the Vlieland Sandstone Formation is a transgressive unit following the Late Kimmerian tectonic event, and as such may unconformably overlie older deposits.
Distribution West Netherlands Basin, Broad Fourteens Basin, the northern onshore area, Lower Saxony Basin, Terschel-ling Basin and southern Central Graben. The Vlieland Sandstone Formation, Vlieland Claystone Formation and the upper part of the Delfland Subgroup (Schieland Group) intertongue in the West Netherlands Basin, Broad Fourteens Basin and Roer Valley Graben.
Age Depending on locality, the Vlieland Sandstone Formation can be of latest Ryazanian/Valanginian to Barremian/Early Aptian age.
Depositional Setting Generally interpreted to have been deposited as transgressive basal sands (lag) and/or as prograding coastal-barrier or offshore shoal-sands.
Sequence Stratigraphy Depending on position in the basin, the Transgressive and Late Highstand systems tracts of Haq (1988) ’s sequences LZB 2.1 - 3.5 can be developed as Vlieland Sandstone Formation (transgressive sheet sands, resp. regressive barrier sands).
Subdivision .
  In the Broad Fourteens Basin, West Netherlands Basin and Lower Saxony Basin intertonguing is seen between the Vlieland Sandstone Formation, Vlieland Claystone Formation, and Delfland Subgroup. Therefore several basin-restricted members are in use.
  KN Rijnland Group
  KNN Vlieland subgroup Formation
  KNNS Vlieland Sandstone Formation
  Northern Netherlands
  KNNSF Friesland Member
  Broad Fourteens Basin
  KNNSK Kotter Member
  KNNSH Helder Member
  West Netherlands Basin
  KNNSL De Lier Member
  KNNSY IJsselmonde Sandstone Member
  KNNSB Berkel Sandstone Member
  KNNSC Berkel Sand-Claystone Formation
  KNNSR Rijswijk Member
  KNNSI Rijn Member
  Lower Saxony Basin
  KNNSG Gildehaus Member
  KNNBS Bentheim Sandstone Member
References See References Upper Jurassic/ Lower Cretaceous

Van Adrichem Boogaert, H.A. & Kouwe, W.F.P., 1993-1997. [Stratigraphic unit]. In: Stratigraphic Nomenclature of the Netherlands.
Retrieved [Datum] from [url].