Kimmeridge Clay Formation

Code
SGKI
Status
Formal (NAM & RGD 1980). Amended (Herngreen & Wong 1989; Van Adrichem Boogaert & Kouwe 1993; Munsterman et al. 2012).
Lithologische beschrijving

Olive-grey, generally silty claystones with thin dolomite streaks (expressed on wire-line logs with a characteristic spiky appearance). Fossil fragments are common in lenses, lignite particles occur frequently. Dolomitic interbeds increase to the north. Towards the south, the claystones may become increasingly silty to sandy and the carbonate streaks and olive hue disappear gradually.

Afzettingsmilieu

Outer shelf setting.

Definitie ondergrens

Conformably overlies the marginal marine barrier sandstones of the Upper Graben Formation (F03-03), the lacustrine to coastal Middle Graben Formation (F03-01), or the delta plain deposits of the Puzzle Hole Formation. The Kimmeridge Clay Formation interfingers with the Puzzle Hole Formation and the Upper and Middle Graben formations.

Definitie bovengrens

(slightly) Unconformably overlain by the glauconitic Scruff Greensand Formation, or any younger unit.

Dikte indicatie
Up to 1000 m (F06-01).
Geografische verbreiding
Regionale correlatie
UK: Kimmeridge Clay Formation; GER: ?; BEL: -.
Ouderdom
late Oxfordian - late Tithonian.
Holostratotype
Well:
Depth (thickness) AH:
1780 - 2547 m (767 m)
Oorsprong naam
Name derived from the British stratigraphic nomenclature where it is applied to similar argillaceous deposits which are widespread in the general North Sea area (NAM and RGD 1980).
Vorige benaming(en)
None.
Gereviewed door (datum)
Sander Houben (2017).
Referenties
NAM & RGD 1980. Stratigraphic nomenclature of The Netherlands. Verhandelingen van het Koninklijk Nederlands Geologisch Mijnbouwkundig Genootschap 32, 77 p.
Herngreen, G.F.W. and Wong, Th.E. 1989. Revision of the ’Late Jurassic’ stratigraphy of the Dutch Central North Sea Graben - Geol. en Mijnbouw, 68, p. 73-105.
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..
D.K. Munsterman, R.M.C.H. Verreussel, H.F. Mijnlieff, N. Witmans, S. Kerstholt-Boegehold, 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, 555-590.
Cite as
TNO-GDN ([YEAR]). Kimmeridge Clay Formation. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from https://www.dinoloket.nl/en/stratigraphic-nomenclature/kimmeridge-clay-formation.