Valkenburg Member

Code
NUBEVA
Status
Formal (Westerhoff & Weerts 2003).
Lithological description

Medium to very coarse sand and coarse gravel, with cobbles, boulders and blocks. Local loam or clay, especially at the top, coarse sand lenses.

Depositional setting

Fluvial (western Meuse).

Definition of lower boundary

Sharp contact with various Neogene, Paleogene and Cretaceous units. Locally incised into Sibbe Member (Beegden Formation).

Definition of upper boundary

Locally exposed at the surface. Commonly, sharp contact with periglacial aeolian and local river loam and sand (Boxtel Formation). Locally incised by St. Geertruid Member (Beegden Formation).

Thickness indication
Up to about 10 m.
Geographical distribution
Southeasternmost part of the Netherlands, close to the Meuse river.
Regional correlation
North Sea; not present; UK: not present; GER: ?; BEL: ?
Age
early Pleistocene (Eburonian - Waalian).
Type section
Well:
Not yet determined.
Depth (thickness) AH:
Not yet determined.
Origin of name
Named after the village of Valkenburg aan de Geul in the southeasternmost Netherlands.
Previous name(s)
Valkenburg Deposits, Kedichem Formation (Felder & Bosch 1989).
Reviewed by (date)
Wim Dubelaar (2018), Sytze van Heteren (2019).
References
Felder, W.M., Bosch, P.W. 1989. Geologische kaart van Zuid-Limburg en omgeving. Afzettingen van de Maas. Rijks Geologische Dienst, Haarlem.
Westerhof, W.E., Weerts, H.J.T. 2003. Beschrijving lithostratigrafische eenheid. Nederlands Instituut voor Toegepaste Geowetenschappen TNO. Utrecht.
Cite as
TNO-GDN ([YEAR]). Valkenburg Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://www.dinoloket.nl/en/stratigraphic-nomenclature/valkenburg-member.