The information on this page is a summary description.
The full formal description is available here: Franc-Waret Formation
| Abbreviation | FRW |
| Parent unit | none |
| Child units | none |
| Lithological description | Greenish or purple shale frequently finely micaceous, with calcareous brachiopods coquina beds and several oolitic ironstone horizons. |
| Age | Late Frasnian-Early Famennian |
| Thickness | 20-40 m in the type area |
| Area of occurrence | Central part of the Brabant Parautochthon, from the Orneau River valley to Vezin, in the HaineSambreMeuse Overturned Thrust sheets and in the Campine Basin (where identified as the Falisolle Formation). |
| Type locality | The historical locality, in the park of the Franc-Waret castle has disappered. A parastratotype is designated by Mottequin et al. (2024) along the railway east of the Huy train station. |
| Alternative names | Schistes de Franc-Waret, Falisolle Formation |
| Authors | Mottequin, B., Denayer, J., Delcambre, B., Marion, J.-M. & Poty, E. |
| Date | 23/09/2025 |
| Cite as | Mottequin, B., Denayer, J., Delcambre, B., Marion, J.-M. & Poty, E., 2025. The Franc-Waret Formation, 23/09/2025. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/Franc-Waret-Formation |
| Additional information |
