Code
RBSM
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1994).
Lithologische beschrijving
Rred-brown to green, silty, sometimes anhydritic claystone. Some thin sandstone beds and oolitic beds also occur.
Afzettingsmilieu
Presumably a near-shore, shallow water depositional setting.
Definitie ondergrens
Characterized by a, generally thin, sandstone bed which overlies the Zechstein fines.
Definitie bovengrens
Placed at the base of the first prominent oolite bed.
Dikte indicatie
Up to 375 m.
Geografische verbreiding
Regionale correlatie
UK: Bacton Group; GER: Calvörde Formation; BEL: Main Claystone Member.
Ouderdom
late Changhsingian - Induan.
Holostratotype
Well:
Depth (thickness) AH:
3066 - 3255 m (189 m)
Hypostratotype
Well:
Depth (thickness) AH:
1732 - 1973 m (241 m)
Oorsprong naam
None.
Vorige benaming(en)
Main Claystone Member.
Gereviewed door (datum)
Johan ten Veen (2017).
Referenties
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. 1994. Stratigraphic nomenclature of The Netherlands; revision and update by RGD and NOGEPA, Section E, Triassic. Mededelingen Rijks Geologische Dienst, 50, 1-28.
Cite as
TNO-GDN ([YEAR]). Main Claystone Formation. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/main-claystone-formation.