Code
CFYD
Status
Formal (Van Adrichem Boogaert & Kouwe 1994).
Lithological description
Cyclic alternation of limestones, claystones, sandstones and rare coal seams. The number of limestone beds is variable.
Depositional setting
Under paralic conditions. Frequent marine incursions resulted in the formation of marine limestones and claystones.
Definition of lower boundary
Placed at the base of the first distinct limestone bed overlying the clastics of the Elleboog Formation.
Definition of upper boundary
Defined by the top of the uppermost well developed limestone bed. Conformably overlain by the Epen Formation, which locally contains some minor carbonate intercalations in its basal part.
Thickness indication
Up to 175 m.
Geographical distribution
Regional correlation
UK: Yoredale Formation; GER: -; BEL: -.
Age
middle Visean - early Serpukhovian.
Holostratotype
Well:
Depth (thickness) AH:
2213 - 2356 m (143 m)
Parastratotype
Well:
Depth (thickness) AH:
2823 - 2996 m (173 m)
Parastratotype
Well:
Depth (thickness) AH:
2055 - 2134 m (79 m)
Origin of name
Named after the Yoredale facies of the Mississippien (Upper Dinantian and Lower Namurian), occurring in northeastern England.
Previous name(s)
None.
Reviewed by (date)
Tom van Hoof (2017).
References
Van Adrichem Boogaert, H.A. & Kouwe, W.F.P. 1994. Stratigraphic nomenclature of The Netherlands; revision and update by RGD and NOGEPA, Section B, Devonian and Dinantian. Mededelingen Rijks Geologische Dienst, 50, 1-20.
Cite as
TNO-GDN ([YEAR]). Yoredale Formation. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/yoredale-formation.