Schimmert Member

Code
NUBXSC
Status
Formal (Schokker et al. 2005; Schokker et al. 2007).
Lithological description

Dark brown to yellowish brown loam (Kuyl 1980), sandy (loess). In the southeast, usually subdivided into a lower (low carbonate content) and upper (higher carbonate content) part. Palaeosols.

Depositional setting

Periglacial aeolian (loess).

Definition of lower boundary

Sharp, unconformable contact with river sand and gravel (Beegden Formation) and, locally, with Neogene and Cretaceous marine deposits.

Definition of upper boundary

Commonly exposed at the surface.

Thickness indication
Up to about 10 m.
Geographical distribution
Southeasternmost Netherlands and central-eastern Netherlands bordering a major ice-pushed complex.
Regional correlation
North Sea: ?; UK: informal Pegwell Formation (McMillan et al. 2011); GER: ?; BEL: Romont Group (former Gembloux Formation).
Age
late Middle Pleistocene (Saalian) - Late Pleistocene (Weichselian).
Type section
Well:
Not yet determined.
Depth (thickness) AH:
Not yet determined.
Origin of name
Named after the village of Schimmert, in the southeasternmost Netherlands.
Previous name(s)
Loess deposits in the former Eindhoven and Twente Formations (Doppert et al. 1975).
Reviewed by (date)
Wim Dubelaar (2018), Sytze van Heteren (2019).
References
Doppert, J.W.Chr., Ruegg, G.H.J., Van Staalduinen, C.J., Zagwijn, W.H., Zandstra, J.G. 1975. Formaties van het Kwartair en Boven-Tertiair in Nederland. In: Zagwijn, W.H., Van Staalduinen, C.J. (eds.): Toelichting bij geologische overzichtskaarten van Nederland. Rijks Geologische Dienst, Haarlem, 11-56.
McMillan, A.A., Hamblin, R.J.O., Merritt, J.W. 2011. A lithostratigraphical framework for onshore Quaternary and Neogene (Tertiary) superficial deposits of Great Britain and the Isle of Man. British Geological Survey Research Report, RR/10/03, 343 p.
Schokker, J, De Lang, F.D., Weerts, H.J.T., Den Otter, C., Passchier, S. 2005. Beschrijving lithostratigrafische eenheid. Nederlands Instituut voor Toegepaste Geowetenschappen TNO. Utrecht.
Schokker, J., Weerts, H.J.T., Westerhoff, W.E., Berendsen, H.J.A., Den Otter, C. 2007. Introduction of the Boxtel Formation and implications for the Quaternary lithostratigraphy of the Netherlands. Netherlands Journal of Geosciences / Geologie en Mijnbouw, 86, 197-210.
Cite as
TNO-GDN ([YEAR]). Schimmert Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://www.dinoloket.nl/en/stratigraphic-nomenclature/schimmert-member.