Code
SGSK
Status
Formal (Munsterman et al. 2012).
Lithologische beschrijving
Alternating slightly silty to sandy claystones, glauconitic sandstones. Bioturbation is often present. Locally pyrite, lignite and/or shell fragments are present.
Afzettingsmilieu
Restricted to shallow marine conditions.
Definitie ondergrens
Conformably overlies the Friese Front Formation. Based on the top of the first variegated or grey, non- marine clay-/siltstones or thick sand bed.
Definitie bovengrens
In the southern Central Graben unconformably overlain by the Scruff Greensand Formation. The boundary with the Scruff Greensand Formation is recorded by a funnel- shaped GR-log pattern, resulting from the upward decreasing clay content.
Dikte indicatie
Up to 405 m (F18-05).
Geografische verbreiding
Regionale correlatie
UK: Humber Group; GER: ?; BEL: -.
Ouderdom
late Kimmeridgian - middle Tithonian.
Holostratotype
Well:
Depth (thickness) AH:
2318 - 2565 m (247 m)
Parastratotype
Well:
Depth (thickness) AH:
2182 - 2512 m (330 m)
Oorsprong naam
Named after the Frysian name of the Wadden island Terschelling.
Vorige benaming(en)
None.
Gereviewed door (datum)
Sander Houben (2017).
Referenties
Munsterman, D.K., Verreussel, R.M.C.H., Mijnlieff, H.F., Witmans, N., Kerstholt-Boegehold, S. & Abbink, O.A. 2012. Revision and update of the Callovian-Ryazanian Stratigraphic Nomenclature in the northern Dutch Offshore, i.e. Central Graben Subgroup and Scruff Group. Netherlands Journal of Geosciences-Geologie en Mijnbouw, 91 (4), 555-590.
Cite as
TNO-GDN ([YEAR]). Skylge Formation. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/skylge-formation.