Code
NUNIGR
Status
Formal (Weerts & Busschers 2003).
Lithological description
Yellow to greenish brown basal gyttja and brown to black eutrophic (reed) peat with local (pine) tree trunks, transitioning into mesotrophic peat, with oligotrophic moss peat at the top.
Depositional setting
Lacustrine, raised bog (drainage divide).
Definition of lower boundary
Gradual (rooted horizon) to sharp contact with periglacial sand (Boxtel Formation).
Definition of upper boundary
Commonly exposed at the surface.
Thickness indication
Up to about 2 m.
Geographical distribution
Fragmentary in the eastern and southern Netherlands.
Regional correlation
North Sea: not present; UK: Flanders Moss Peat Formation (McMillan et al. 2011); GER: Torfkomplex (Preuss 1979); BEL: Botrange Bed (Gullentops et al. 2001).
Age
Late Pleistocene (Lateglacial) - Holocene.
Holostratotype
Well:
Depth (thickness) AH:
Not applicable.
Comments:
Cross-sections A, B and C from Doppert et al. (1975).
Origin of name
Named after the village of Griendtsveen in the southeastern Netherlands.
Previous name(s)
Griendtsveen Formation (Doppert et al. 1975).
Reviewed by (date)
Wim Dubelaar (2018), Sytze van Heteren (2019).
References
Doppert, J.W.Chr., Ruegg, G.H.J., Van Staalduinen, C.J., Zagwijn, W.H., Zandstra, J.G. 1975. Formaties van het Kwartair en Boven-Tertiair in Nederland. In: Zagwijn, W.H., Van Staalduinen, C.J. (eds.): Toelichting bij geologische overzichtskaarten van Nederland. Rijks Geologische Dienst, Haarlem, 11-56.
Gullentops, F., Bogemans, F., De Moor, G., Paulissen, E., Pissart, A. 2001. Quaternary lithostratigraphic units (Belgium). In: Bultynck, P., Dejonghe, L. (eds.), Guide to a revised lithostratigraphic scale of Belgium, Geologica Belgica, 4/1-2, 153-164.
McMillan, A.A., Hamblin, R.J.O., Merritt, J.W. 2011. A lithostratigraphical framework for onshore Quaternary and Neogene (Tertiary) superficial deposits of Great Britain and the Isle of Man. British Geological Survey Research Report, RR/10/03, 343 p.
Preuss, H. 1979. Die Holozäne Entwicklung der Nordseeküste im Gebiet der östlichen Wesermarsch. Geologisches Jahrbuch Reihe A 53, 3-84.
Cite as
TNO-GDN ([YEAR]). Griendtsveen Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from https://www.dinoloket.nl/en/stratigraphic-nomenclature/griendtsveen-member.