Weiteveen Lower Evaporite Member

Code
SKWFB
Status
Formal (NAM & RGD 1980). Amended (Van Adrichem Boogaert & Kouwe 1993).
Lithological description

Alternation of dolomitic and/or anhydritic claystones, anhydrites, halites and limestones. Over synsedimentary highs, the halite layers thin and disappear, accompanied by a marked decrease of the anhydrite content.

Depositional setting

Highly-restricted lacustrine basin-margin to marginal-marine sub-basin setting. Evaporites can be attributed to a combination of estuarine basin circulation and reworking of outcropping Triassic and Zechstein evaporites.

Definition of lower boundary

Conformably rests on the variegated Weiteveen Basal Clastic Member, or unconformably overlies the Altena Group or older sediments. The base is placed at the lowermost carbonate or anhydrite bed.

Definition of upper boundary

Placed at a marked increase in GR-log readings and a drop in resistivity log readings, caused by the higher clay content of the Weiteveen Lower Marl Member.

Thickness indication
Generally less than 60 m and up to 96 m in SCH-197.
Geographical distribution
Regional correlation
UK: ?; GER: Münder Formation; BEL: -.
Age
late Tithonian.
Holostratotype
Depth (thickness) AH:
1470 - 1567 m (97 m)
Hypostratotype
Depth (thickness) AH:
1140 - 1150 m (10m)
Hypostratotype
Depth (thickness) AH:
1301 - 1327 m (26m)
Hypostratotype
Depth (thickness) AH:
482 - 573 m (91m)
Origin of name
Named after the village of Weiteveen, municipality of Schoonebeek, in the southeastern part of the province of Drente.
Previous name(s)
None.
Reviewed by (date)
Sander Houben (2017).
References
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. 1993. Stratigraphic nomenclature of The Netherlands; revision and update by RGD and NOGEPA, Section G, Upper Jurassic and Lower Cretaceous. Mededelingen Rijks Geologische Dienst, 50, 1-80..
Cite as
TNO-GDN ([YEAR]). Weiteveen Lower Evaporite Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from http://www.dinoloket.nl/en/stratigraphic-nomenclature/weiteveen-lower-evaporite-member.