Code
DCH
Status
Formal (Van Adrichem Boogaert & Kouwe 1995).
Lithological description
Succession of largely orange- or brownish-red, but also grey or variegated mudstones with some intercalated sandstone beds, mostly without coal seams.
Depositional setting
Distal flood-plain deposition with sheet floods and small-scale fluvial channels.
Definition of lower boundary
Not yet determined.
Definition of upper boundary
Not yet determined.
Thickness indication
Up to 797 m (GRL-01).
Geographical distribution
The upper Ketch Member of the Schooner Formation and the Brig Formation of Cameron (1993) are partial lithostratigraphic counterparts in the UK offshore.
Regional correlation
UK: upper Ketch Member and Brig Formation; GER: Ruhr-Gruppe; BEL: Strijen Formation and Neeroeteren Formation.
Age
Moscovian.
Holostratotype
Well:
Depth (thickness) AH:
2232 - 2987 m (755 m)
Origin of name
Named after the Hunze river, which runs through the province of Drenthe, where deposits of this subgroup are common in the subsurface.
Previous name(s)
Barren Measures (DCCR) (NAM 1980).
Reviewed by (date)
Tom van Hoof (2017).
References
Cameron, T.D.J. 1993. Carboniferous and Devonian of the Southern North Sea. ln: Knox. R.W.0'8. & Cordey, W.G. (eds.) Lithostratigraphic nomenclature of the UK North Sea 5, British Geological Survey, Nottingham, 94 p.
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]). Hunze Subgroup. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/hunze-subgroup.