Code
NUNAWAYE
Status
Formal (Weerts 2003).
Lithological description
Greenish to brownish grey firm clay, silty, organic, with intercalated sand laminae.
Depositional setting
Periodically flooded shore of inland sea (Westerhoff et al. 1987, 2003).
Definition of lower boundary
Sharp contact with peat (Nieuwkoop Formation).
Definition of upper boundary
Exposed at the surface.
Thickness indication
Up to about 0.5 m.
Geographical distribution
Southern and eastern fringes of a former inland sea in the central Netherlands.
Regional correlation
North Sea: not present; UK: not present; GER: not present; BEL: not present.
Age
Holocene (Meghalayan, 800-1400 AD).
Type section
Well:
Not yet determined.
Depth (thickness) AH:
Not yet determined.
Origin of name
Named after a dammed creek northeast of Amsterdam.
Previous name(s)
None.
Reviewed by (date)
Wim Dubelaar (2018), Sytze van Heteren (2019).
References
Weerts, H.J.T. 2003. Beschrijving lithostratigrafische eenheid. Nederlands Instituut voor Toegepaste Geowetenschappen TNO. Utrecht.
Westerhoff, W.E., De Mulder, E.F.J., De Gans, W. 1987. Toelichtingen bij de Geologische kaart van Nederland 1: 50.000 Blad Alkmaar West (19W) en Blad Alkmaar Oost (19O). Rijks Geologische Dienst, Haarlem.
Westerhoff, W.E., Wong, Th.E., De Mulder, E.F.J. 2003. Opbouw van de ondergrond. Deel 3. In: De Mulder, E.F.J., Geluk, M.C., Ritsema, I., Westerhoff, W.E., Wong, Th.E. (eds.): De ondergrond van Nederland. Netherlands Institute of Applied Geosciences TNO - National Geological Survey, 249-352.
Cite as
TNO-GDN ([YEAR]). IJe Bed. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/ije-bed.