Code
ROCLH
Status
Formal (NAM & RGD 1980).
Lithologische beschrijving
Red-brown clay- and siltstone interval with a few sand-/siltstone stringers.
Afzettingsmilieu
Mudflat to playa lake.
Definitie ondergrens
Unconformably on the Limburg Group. Generally, the Limburg Group stands out on porosity logs by a higher degree of compaction.
Definitie bovengrens
Conformably overlain by the Lower Slochteren Member. The boundary has been placed at the base of the first prominent sandstone or conglomerate bed (see Mijnlieff et al 2011, Appendix B, Figure B2e).
Dikte indicatie
Up to 50 m.
Geografische verbreiding
Regionale correlatie
UK: ?; GER: ?; BEL: -.
Ouderdom
Capitanian - Wuchiapingian.
Holostratotype
Depth (thickness) AH:
3314 - 3349 m (35 m)
Hypostratotype
Well:
Depth (thickness) AH:
3940 - 3948 m (8 m)
Oorsprong naam
Named after the village of Hollum on the Wadden island of Ameland.
Vorige benaming(en)
None.
Gereviewed door (datum)
Harmen Mijnlieff (2017).
Referenties
NAM & RGD 1980. Stratigraphic nomenclature of The Netherlands. Verhandelingen van het Koninklijk Nederlands Geologisch Mijnbouwkundig Genootschap 32, 77 p.
Van Adrichem Boogaert, H.A. & Kouwe, W.F.P. 1994. Stratigraphic nomenclature of The Netherlands; revision and update by RGD and NOGEPA, Section D, Permian. Mededelingen Rijks Geologische Dienst, 50, 1-42.
Cite as
TNO-GDN ([YEAR]). Hollum Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from https://www.dinoloket.nl/en/stratigraphic-nomenclature/hollum-member.