Dinkel Subgroup

DCD

Formal (Adrichem Boogaert & Kouwe 1995).

Succession of sandstone-dominated siliciclastic deposits with frequent interbedded mudstone intervals and occasional coal seams.

Fluvial-fan and flood-plain systems. Marine influence is restricted. The characteristic (reduced) grey colours of the older Limburg Group deposits gradually shift to (oxidised) primary red beds. This reflects better soil drainage and increasing climatic aridity (Besly 1988; Besly 1990; Besly & Turner 1983; Besly et al. 1993; van der Zwan et al. 1993).

Not yet defined.

Not yet defined.

Up to 495 m in TUB-08.

UK: Brig and Schooner Formations; GER: ?; BEL: ?.

Moscovian.

Named after Dinkel river, which runs through the type area in the eastern part of the province of Overijssel, called Twente.

Twente Sandstone. The Dinkel Subgroup is the new equivalent of the Tubbergen Sandstone Formation of NAM (1980). Prior to the definition of the Tubbergen Formation, the informal name ‘Twente Sandstone’ was also used repeatedly.

Tom van Hoof (2017).

Besly, B.M. 1988. Palaeogeographic implications of late Westphalian to early Permian red beds, central England. ln: Besly, B.M. & Kelling, G. (eds.), Sedimentation in a synorogenic basin complex - the Upper Carboniferous of Northwest Europe, 200-221.

Besly, B.M. 1990. Carboniferous - ln: Glennie, K.W., (ed.) 1990: lntroduction to the Petroleum Geology of the North Sea area, 3rd. edition, 90 - 119 - Blackwell Scientif ic Publications, Oxford.

Besly, B.M. & Turner, P. 1983. Origin of red beds in a moist tropical climate (Etruria Formation, Upper Carboniferous, UK) - ln: Wilson. R.C.L., (ed.): Residual deposits: surface-related weathering processes and materials - Geol. Soc. London, Spec. Publ., 11, 131-149.

Besly, B.M., Burley, S.D., Turner, P. 1993. The late Carboniferous 'Barren Red Bed' play of the Silver Pit area, Southern North Sea. ln: Parker, J.R., (ed.): Petroleum Geology of Northwest Europe, Proc. 4th Conference, Geological Society London, 727-740.

Van der Zwan, C.J., van de Laar, J.G.M., Pagnier, H.J.M. & van Amerom, H.W.J. 1993. Palynological, ecological and climatological synthesis of the upper Carboniferous of the well De Lutte-6 (East Netherlands) - C. R. Xll Congr. lnt. Strat. Géol. Carb., Buenos Aires, 1991, 1, 439 - 457.

Van Adrichem Boogaert, H.A. & Kouwe, W.F.P. 1995. Stratigraphic nomenclature of The Netherlands, revision and update by RGD and NOGEPA, Section C, Silesian. Mededelingen Rijks Geologische Dienst, 50, 1-40.