The information on this page is a summary description.
The full formal description is available here: Pouru-au-Bois Formation
Abbreviation
PAB
Parent unit
Child units
Lithological description
Subdivided into three members: the unnamed lower member (old: Rv5a): black slate, easily affected by microfolds (Beugnies, 1960); the unnamed middle member (old: Rv5b): some lenticular grey quartzite beds of 0,50 to 1 m thick, alternating with slate layers of the same thickness; the unnamed upper member (old: Rv5c): black slate and silty slate (called “quartzophyllade” in the older literature), sometimes laminated and often intensely deformed by microfolds.
Age
No fossils discovered yet; correlated by Beugnies (1960) on lithological grounds with the upper part of the Revin Group and the lower part of the Salm Group.
Thickness
410 – 415 m with 100 m for the upper member, 10 to 15 m for the middle member and 300 m for the lower member (Beugnies, 1960).
Area of occurrence
Givonne Massif.
Type locality
Not yet defined; type area in the valley of the Pouru, in and north of the village of Pouru-au-Bois.
Alternative names
Rv5
Authors
Verniers, J., Herbosch, A., Vanguestaine, M., Geukes, F., Delcambre, B., Pingot, J.-L., Belanger, I., Hennebert, M., Debacker, T., Sintubin, M. & De Vos, W.
Date
01/01/2001
Cite as
Verniers, J., Herbosch, A., Vanguestaine, M., Geukes, F., Delcambre, B., Pingot, J.-L., Belanger, I., Hennebert, M., Debacker, T., Sintubin, M. & De Vos, W., 2001. The Pouru-au-Bois Formation, 01/01/2001. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/Pouru-au-Bois-Formation
