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5.33.4. Cambron Formation – CAB

 

Authors: Groessens et al., 1982; Paproth et al., 1983; Conil & Delcourt, 1989; Doremus & Hennebert, 1995a, 1995b.

Description: Dark, medium- to coarse-grained, crinoidal dolomite with corals and brachiopods. Chert nodules are abundant and pale silicification occurs locally, with corals and brachiopods. The formation is similar to the Grand-Chemin Fm, but is more cherty. It overlies the Pont-de-Lens Fm.

Stratotype: Old quarry at Bollignies (Cambron-Casteau).

Area: Western HSA, at least from Péruwelz to Seneffe.

Thickness: About 130 m in the type area.

Age: Moliniacian (Groessens et al., 1982).