The information on this page is a summary description.
The full formal description is available here: Wanne Formation
| Abbreviation | WAN |
| Parent unit | Revin Group |
| Child units | |
| Lithological description | Dark green-blue fine slate and green-greyish quartzite, alternating with dark slaty quartzite; some rare 10-15 cm thick conglomerate beds with slaty, quartzitic and sometimes phosphatic pebbles. The lower part comprises black silty slate (called “quartzophyllade” in the older literature), sometimes slate and black finely stratified quartzite. Some interstratified volcanic lavas or tuffs are present. |
| Age | The presence of the inarticulate brachiopod Acrothele cf. bergeroni indicates a Mid Cambrian age (Vanguestaine & Rushton, 1979); the acritarchs belong to the biozones 1, 2 and 3, dated as Early (?) to Mid Cambrian (Vanguestaine, 1974, 1992; Vanguestaine & Van Looy, 1983). |
| Thickness | 550-650 m. |
| Area of occurrence | Stavelot Massif. |
| Type locality | Not yet defined; type area in the outcrops of the Salm valley south of the village Trois Ponts. |
| Alternative names | Rv1-2 |
| 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 Wanne Formation, 01/01/2001. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/Wanne-Formation |
| Additional information |
