The information on this page is a summary description.
The full formal description is available here: Colibeau Formation
Abbreviation
CLB
Parent unit
Child units
Lithological description
Dark grey or brownish black coarse-grained shale with rare intercalations of clayey sandstone, quartz- rich and rather strongly micaceous (Maillieux, 1930a; Martin, 1969a).
Age
Brachiopod fauna in the upper part of the unit, with Spirifer elevatus, Plethorhyncha percostata and Stropheodonta simulans, one specimen of each, similar to the Whitcliffe Flags in Wales, U.K. (Malaise, 1913; Maillieux, 1930a): Ludfordian (late Ludlow) age.
Thickness
± 650 m (Michot, 1957).
Area of occurrence
Condroz inlier.
Type locality
Railway section along railway Namur-Arlon, at locality Colibeau, near Naninne (Martin, 1969).
Alternative names
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 Colibeau Formation, 01/01/2001. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/Colibeau-Formation
