Code
DCG
Status
Formal (Van Adrichem Boogaert & Kouwe 1995).
Lithologische beschrijving
Comprising cyclic successions of predominantly fine-grained siliciclastic deposits devoid of coal seams. In the northwestern offshore the subgroup locally includes a sandstone-dominated succession.
Afzettingsmilieu
Delta sedimentation in a lacustrine basin with frequent marine incursions.
Long-term regression from north to south.
Definitie ondergrens
Not yet defined.
Definitie bovengrens
Not yet defined.
Dikte indicatie
Up to 1335 m in WSK-01.
Geografische verbreiding
Regionale correlatie
UK: Millstone Grit Group; GER: Ruhr-Group?; BEL: Belgian Coal Measures Group.
Ouderdom
Serpukhovian - Bashkirian.
Holostratotype
Well:
Depth (thickness) AH:
2438 - 4303 m (1865 m)
Oorsprong naam
Named after the small river Geul in the south of the province of Limburg and adjoining Belgium, where some outcrops of this subgroup can be found.
Vorige benaming(en)
None.
Gereviewed door (datum)
Tom van Hoof (2017).
Referenties
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.
Cite as
TNO-GDN ([YEAR]). Geul Subgroup. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from https://www.dinoloket.nl/en/stratigraphic-nomenclature/geul-subgroup.