The information on this page is a summary description.
The full formal description is available here: La Venne Formation
| Abbreviation | VEN |
| Parent unit | Revin Group |
| Child units | |
| Lithological description | Heterogeneous unit characterised by the alternation of black slate and dark quartzite. The quartzite is sometimes very clayey and micaceous. In the middle part very thick beds occur of grey-bluish quartzite which can contain thin gravel layers. The lower part is characterised by a rhythmic sedimentation with units consisting of, from base to top, coarse sandstone, fine sandstone, siltstone and slate, and also by well-stratified blue quartzite and by micaceous sandstone beds. Volcanic intrusions are present, mostly acid in composition. |
| Age | Mid to Late Cambrian based on acritarchs (Vanguestaine & Van Looy, 1983; Ribecai & Vanguestaine, 1993). |
| Thickness | 500 m. |
| Area of occurrence | Stavelot Massif. |
| Type locality | Not yet defined; type area in the Amblève valley, along the railway sections between La Gleize and Coo. |
| Alternative names | Rv3-4 |
| 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 La Venne Formation, 01/01/2001. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/La-Venne-Formation |
| Additional information |
