Code
NUBEVA
Status
Formal (Westerhoff & Weerts 2003).
Lithologische beschrijving
Medium to very coarse sand and coarse gravel, with cobbles, boulders and blocks. Local loam or clay, especially at the top, coarse sand lenses.
Afzettingsmilieu
Fluvial (western Meuse).
Definitie ondergrens
Sharp contact with various Neogene, Paleogene and Cretaceous units. Locally incised into Sibbe Member (Beegden Formation).
Definitie bovengrens
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).
Dikte indicatie
Up to about 10 m.
Geografische verbreiding
Southeasternmost part of the Netherlands, close to the Meuse river.
Regionale correlatie
North Sea; not present; UK: not present; GER: ?; BEL: ?
Ouderdom
early Pleistocene (Eburonian - Waalian).
Type section
Well:
Not yet determined.
Depth (thickness) AH:
Not yet determined.
Oorsprong naam
Named after the village of Valkenburg aan de Geul in the southeasternmost Netherlands.
Vorige benaming(en)
Valkenburg Deposits, Kedichem Formation (Felder & Bosch 1989).
Gereviewed door (datum)
Wim Dubelaar (2018), Sytze van Heteren (2019).
Referenties
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://acc.dinoloket.nl/en/stratigraphic-nomenclature/valkenburg-member.