Code
CKTXG
Status
Formal (NAM & RGD 1980).
Lithological description
Greenish, glauconitic, calcareous sandstones with intercalated marls.
Depositional setting
Inner- to outer-neritic marine depositional setting. An abundance of glauconite indicates frequent reworking and a relatively low rate of deposition. Glauconite is commonly found in transgressive sand units, at the end of the Albian transgression.
Definition of lower boundary
At the southern margin of the West Netherlands Basin the member covers the Rijnland Group essentially conformably.
Definition of upper boundary
Overlain conformably by the Texel Marlstone Member.
Thickness indication
Generally less than 65 m, but up to 170 m in Q13 wells.
Geographical distribution
Southern fringe of the West Netherlands Basin and very locally in the vicinity of Nijmegen at the margin of the Central Netherlands Basin and Maasbommel High (Gras, 1995).
Regional correlation
UK: -; GER: -; BEL: -.
Age
early or middle Cenomanian.
Holostratotype
Well:
Depth (thickness) AH:
1110 - 1127 m (17 m)
Origin of name
Named after the Texel Formation.
Previous name(s)
None.
Reviewed by (date)
Mark Geluk, Geert-Jan Vis (June 2017).
References
Gras, R. 1995. Late Cretaceous sedimentation and tectonic inversion, southern Netherlands. Netherlands Journal of Geosciences 89, 203 - 237.
NAM & RGD 1980. Stratigraphic nomenclature of The Netherlands. Verhandelingen van het Koninklijk Nederlands Geologisch Mijnbouwkundig Genootschap 32, 77 p.
Cite as
TNO-GDN ([YEAR]). Texel Greensand Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://acc.dinoloket.nl/en/stratigraphic-nomenclature/texel-greensand-member.