Tijnje Member

Grey to brownish grey medium to very coarse sand, gravelly, non-calcareous, slightly micaceous, multi-coloured. Locally, greenish grey loam, grey to greenish grey sand with clay laminae, grey to brownish grey clay or organogenic sediment (Bosch et al. 2014).

Fluvial (Rhine), including channel, bank, crevasse (sand), abandoned channel and oxbow lake (clay, loam, peat and gyttja). Northward, coastal and shallow marine, including tidal channel and tidal flat (sand with clay laminae), lagoonal (clay, loam), marsh and swamp (peat). estuarine, tidal and shallow marine.

Unconformable, partly diffuse transition into fluvioglacial sand (Peelo Formation), gradual transition into fluvial sand (Urk Formation, undifferentiated).

Sharp and unconformable contact with till (Gieten Member, Drente Formation), marine sand (Eem Formation), or tidal sand and clay (Naaldwijk Formation). Gradual transition into finer periglacial sand (Drachten and Boxtel Formations). Diffuse transition into gravelly glaciofluvial sand (Schaarsbergen Member, Drente Formation) or into gravelly fluvial sand (Kreftenheye Formation), except where separated by a coarse channel lag.