Stemerdink Bed

Formal (Westerhoff 2003).
Lithological description

Dark brown sand, clayey, and clay, sandy. Micaceous, fossiliferous (rich Miocene fauna).

Depositional setting

Warm shallow marine.

Definition of lower boundary

Diffuse contact with warm shallow-marine sandy clay (Miste Bed, Breda Formation).

Definition of upper boundary

Sharp unconformable contact with fluvioglacial gravel (Schaarsbergen Member, Drente Formation). Unconformable contact with coarse lag at base of shallow-marine clay (Eibergen Member, Breda Formation).

Thickness indication
Up to 10 m.
Geographical distribution
Very local in the eastern Netherlands.
Regional correlation
North Sea: not present; UK: not present; GER: ?; BEL: not present.
middle Miocene.
Type section
Not yet determined.
Depth (thickness) AH:
Not yet determined.
Origin of name
Named after the estate of Stemerdink in the eastern Netherlands.
Previous name(s)
Reviewed by (date)
Sytze van Heteren (2019).
Van den Bosch, M., Cadée, M.C., Janssen, A.W. 1975. Lithostratigraphical and biostratigraphical subdivision of Tertiary deposits (Oligocene-Pliocene) in the Winterswijk-Almelo region (eastern part of The Netherlands). Scripta Geologica 29, 1-167.
Westerhoff, W.E. 2003. Beschrijving lithostratigrafische eenheid. Nederlands Instituut voor Toegepaste Geowetenschappen TNO. Utrecht.
Cite as
TNO-GDN ([YEAR]). Stemerdink Bed. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from