Code
NMRURA
Status
Formal (Van Adrichem Boogaert & Kouwe 1997).
Lithologische beschrijving
Sand, very fine to extremely coarse-grained, dark grey with glauconite, silty clay and loam. For details the reader is referred to Van den Bosch et al. (1975).
Afzettingsmilieu
Marine.
Definitie ondergrens
Not yet determined.
Definitie bovengrens
Not yet determined.
Dikte indicatie
Not yet determined.
Geografische verbreiding
Not yet determined.
Regionale correlatie
The Ratum Member corresponds with the Berg Member.
Ouderdom
Rupelian.
Holostratotype
Well:
Not yet determined.
Depth (thickness) AH:
Not yet determined.
Comments:
New reference section: see discussion in Van Den Bosch (2015, p. 36).
Oorsprong naam
Named after the hamlet of Ratum, near Winterswijk.
Vorige benaming(en)
None.
Gereviewed door (datum)
Dirk Munsterman (2018).
Referenties
Van den Bosch, M., Cadée, M.C., Janssen, A.W. 1975. Lithostratigraphical and biostratigraphical subdivision of Tertiary deposits (Oligocene - Pliocene) in the Winterswijk-Almelo region (eastern part of The Netherlands). Scripta Geologica 29, 1-167.
Van Adrichem Boogaert, H.A. & Kouwe, W.F.P. 1997. Stratigraphic nomenclature of The Netherlands, revision and update by RGD and NOGEPA, Section I, Tertiary. Mededelingen Rijks Geologische Dienst, 50, 1-39.
Van den Bosch, M. 2015. Lithostratigrafie van het Oligoceen in de regio Almelo-Winterswijk, Oost Nederland, 164 p.
Cite as
TNO-GDN ([YEAR]). Ratum Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from https://www.dinoloket.nl/en/stratigraphic-nomenclature/ratum-member.