The information on this page is a summary description.
The full formal description is available here: Marteau Member
| Abbreviation | MAR |
| Parent unit | Fooz Formation |
| Child units | |
| Lithological description | Olive-green and variegated fine-grained sandstone, argillaceous or not, and siltstone. The reddish colour progressively appears upwards. The numerous horizons with dissolved carbonate nodules (centimetric to decimetric in size) give a cellular aspect to the Formation. |
| Age | Lowermost Lochkhovian |
| Thickness | 150 to 170 metres |
| Area of occurrence | Margins of the Stavelot and Condroz Inliers |
| Type locality | The type section of the Marteau Member is situated along the Helle River south of Eupen (Dejonghe et al., 1994e) because the historical section in Spa (Marteau locality) is too discontinuous and strongly tectonised. |
| Alternative names | Formation de Marteau |
| Authors | Denayer, J. & Mottequin, B. |
| Date | 23/09/2025 |
| Cite as | Denayer, J. & Mottequin, B., 2025. The Marteau Member, 23/09/2025. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/Marteau-Member |
| Additional information |
