Code
RNMUA
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1994).
Lithologische beschrijving
Light greenish/grey marlstone unit, contains anhydrite beds in the basal part. The member displays an increase in clay content towards the top.
Afzettingsmilieu
Marine.
Definitie ondergrens
Not yet defined.
Definitie bovengrens
Not yet defined.
Dikte indicatie
Varies between 20 m and up to 94 m.
Geografische verbreiding
Regionale correlatie
UK: Dowsing Formation; GER: Middle Muschelkalk Formation; BEL: Middle Muschelkalk Marl Member.
Ouderdom
middle Anisian.
Holostratotype
Well:
Depth (thickness) AH:
1420 - 1488 m (68 m)
Parastratotype
Well:
Depth (thickness) AH:
3443 - 3550 m (107 m)
Hypostratotype
Well:
Depth (thickness) AH:
1706 - 1747 m (41 m)
Oorsprong naam
None.
Vorige benaming(en)
None.
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]). Middle Muschelkalk Marl Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/middle-muschelkalk-marl-member.