The information on this page is a summary description.
The full formal description is available here: Chalon Member
| Abbreviation | CHA |
| Parent unit | Moulin Liénaux Formation |
| Child units | none |
| Lithological description | Shale, calcareous shale and nodular limestone. |
| Age | Early Frasnian |
| Thickness | 10-30 m in the type area |
| Area of occurrence | Southern limb of the Dinant Synclinorium, between Trélon (France) to Bomal-sur-Ourthe, south-eastern margin of the Durbuy-Philippeville Anticlinorium. |
| Type locality | Along the road between Boussu-en-Fagne and Dailly, north of the Tri Chalon. |
| Alternative names | none |
| 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 Chalon Member, 23/09/2025. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/Chalon-Member |
| Additional information |
