The information on this page is a summary description.
The full formal description is available here: Alle Member
| Abbreviation | ALL |
| Parent unit | Mirwart Formation |
| Child units | |
| Lithological description | Dark slate with a tight cleavage and thin quartzitic laminae. |
| Age | Pragian |
| Thickness | 85 metres in the type area |
| Area of occurrence | Neufchâteau-Eifel Synclinorium (mostly western part). |
| Type locality | Sections along the Semoy River in Alle-sur-Semoy. |
| Alternative names | Phyllade dAlle |
| Authors | Denayer, J. & Mottequin, B. |
| Date | 23/09/2025 |
| Cite as | Denayer, J. & Mottequin, B., 2025. The Alle Member, 23/09/2025. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/Alle-Member |
| Additional information |
