Generally fining upward. Greenish grey to light brown fine to medium sand, slightly silty with local shell grit. Subordinate light grey to light brown medium to very coarse sand with lags of fine gravel (mainly quartz and flint) and shell fragments. Local concentrations of shells reworked from older marine deposits. Sporadic thin silty clay beds, slightly sandy loam, peat and gyttja.
Braided (early) to meandering (late; Bos et al. 2005, Kiden 2006) fluvial (Scheldt) (Flemish Valley, Tavernier 1946), including channel (sand and gravel), overbank (clay and loam), abandoned channel (clay and loam).
Commonly accentuated by a lag deposit. Generally sharp, erosive contact with greyish green to dark green, glauconitic and micaceous marine deposits with relatively firm clay (Maassluis, Oosterhout, Breda, Rupel, Tongeren and Dongen Formations) or with micaceous, silty and clayey fluvial-estuarine sand with clay laminae (Waalre Formation). Sharp and erosive but visually diffuse contact with marine sand (Eem Formation), marked by mutual reworking and intercalation.
Locally marked by a clay or loam layer. Typically, gradual and diffuse transition into finer, less calcareous, more organic aeolian and local river sand (Boxtel Formation), sporadically intercalated. Locally, sharp contact with or gradual transition into peat (Basisveen Bed, Nieuwkoop Formation), sharp contact with organic and finer floodplain and abandoned-channel clay and sand (Kreekrak Formation), or sharp and erosive contact with clayey tidal-channel sand (Walcheren and Wormer Members, Naaldwijk Formation).
