Code
ZEZ1K
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1994).
Lithological description
Microlaminated, brownish-black bituminous shale. It is characterized on wire-line logs by high gamma-ray and low acoustic velocity readings. Fish remains are common.
Depositional setting
Marine, below wave base and deposited under euxidic conditions.
Definition of lower boundary
Top of the Rotiegend red/yellow sandstones or locally Carboniferous or older deposits.
Definition of upper boundary
Base of the overlying Z1 Carbonate Member.
Thickness indication
Up to 1 m.
Geographical distribution
Regional correlation
UK: Kupferschiefer Formation; GER: Kupferschiefer; BEL: Coppershale Member.
Age
early Wuchiapingian. Re/Os datings in the basal Kupferschiefer revealed an age of at 257.3 ± 1.6 Ma (Brauns et al. 2003).
Holostratotype
Depth (thickness) AH:
1803 - 1804 m (1 m)
Parastratotype
Well:
Depth (thickness) AH:
3121 - 3122 m (1 m)
Origin of name
None.
Previous name(s)
None.
Reviewed by (date)
Mark Geluk (2017).
References
Brauns, C.M., Pätzold, T. & Haack, U. 2003. A Re-Os study bearing on the age of the Kupferschiefer at Sangerhausen (Germany). International Congress on Carboniferous and Permian Stratigraphy, Utrecht, August 2003, 66.
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]). Coppershale Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/coppershale-member.