Code
CKGP
Status
Formal (Felder 1975). Amended (Felder & Bosch 2000).
Lithological description
Predominantly soft, fine-grained limestone. The lower part contains 50-90% CaCO3 and glauconite. The upper part contains 80-95% CaCO3 and distinctive flint nodules which may contstitute up to 20% of its volume.
Depositional setting
Shallow marine environment.
Definition of lower boundary
Rests unconformably upon the Aachen, Vaals, and Oploo formations.
Definition of upper boundary
Conformably overlain by the Maastricht Formation.
Thickness indication
Up to 175 m.
Geographical distribution
Occurs south of the Benzenrade- and Schin op Geul faults and on the Peel Block.
Regional correlation
UK: Rowe Formation (offshore); GER: Gulpen Formation; BEL: Gulpen Formation.
Age
late Campanian - late Maastrichtian.
Holostratotype
Well:
Gulperberg area (no well)
Depth (thickness) AH:
-
Comments:
The type area is situated southeast of the village of Gulpen, in the Gulperberg area.
Origin of name
Named after the city of Gulpen.
Previous name(s)
Gulpens(ch) Krijt, Gulpen Schichten, Orsbacher Schichten, Assise de Nouvel-les et Spiennes (Belgium).
Reviewed by (date)
Mark Geluk, Geert-Jan Vis (2017).
References
Felder, W.N. & Bosch, P.W. 2000. Het Krijt van Zuid-Limburg. NITG-TNO, Geologie van Nederland 5, 190 p.
Felder, W.M. 1975. Lithostratigrafie van het Boven‑Krijt en het Dano‑Montien in Zuid‑Limburg en het aangrenzende gebied. In: Zagwijn, W.H. & C.J. van Staalduinen (eds.) Toelichting bij geologische overzichtskaarten van Nederland, Rijks Geologische Dienst, Haarlem, 63‑72.
Cite as
TNO-GDN ([YEAR]). Gulpen Formation. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/gulpen-formation.