The information on this page is a summary description.
The full formal description is available here: Trois-Fontaines Formation
| Abbreviation | TRF |
| Parent unit | Givet Group |
| Child units | Marenne Member |
| Lithological description | Coarse-grained crinoidal limestone at the base, biostromal unit rich in stromatoporoids and tabulate corals in the middle and fine-grained limestone in the upper part. |
| Age | Givetian |
| Thickness | 80 m in the type area. |
| Area of occurrence | Southern limb of the Dinant Synclinorium between Trélon (France) and Ferrières, and northern limb of the Dinant Synclinorium between Bettrechies (France) and Hanzinne. |
| Type locality | Historical stratotype in the Trois-Fontaines quarry (Givet) is poorly studied contrarily to the Mont dHaurs Hill sections. |
| Alternative names | Calcaire de(s) Trois-Fontaines |
| Authors | Denayer, J., Coen-Aubert, M., Marion, J.-M. & Mottequin, B. |
| Date | 23/09/2025 |
| Cite as | Denayer, J., Coen-Aubert, M., Marion, J.-M. & Mottequin, B., 2025. The Trois-Fontaines Formation, 23/09/2025. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/Trois-Fontaines-Formation |
| Additional information |
